2023 |
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 | HÚDOKOVÁ, H; JR, FLEISCHER P; JEŽÍK, M; MAREŠOVÁ, J; PŠIDOVÁ, E; MUKARRAM, M; DITMAROVÁ, Ľ; SLIACKA-KONÔPKOVÁ, A; JAMNICKÁ, G Can seedlings of Norway spruce (Picea abies L. H. Karst.) populations withstand changed climate conditions? Journal Article Photosynthetica, 61 (3), pp. 328–341, 2023, ISSN: 1573-9058. @article{H_DOKOV__2023, title = {Can seedlings of Norway spruce (Picea abies L. H. Karst.) populations withstand changed climate conditions?}, author = {H HÚDOKOVÁ and P FLEISCHER JR and M JEŽÍK and J MAREŠOVÁ and E PŠIDOVÁ and M MUKARRAM and Ľ DITMAROVÁ and A SLIACKA-KONÔPKOVÁ and G JAMNICKÁ}, url = {http://dx.doi.org/10.32615/ps.2023.026}, doi = {10.32615/ps.2023.026}, issn = {1573-9058}, year = {2023}, date = {2023-10-01}, journal = {Photosynthetica}, volume = {61}, number = {3}, pages = {328–341}, publisher = {Institute of Experimental Botany}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| Korecký, Jiří; Čepl, Jaroslav; Korolyova, Nataliya; Stejskal, Jan; Turčáni, Marek; Jakuš, Rastislav Forests, 14 (10), pp. 2074, 2023, ISSN: 1999-4907. @article{Koreck__2023, title = {Resistance to Bark Beetle Outbreak in Norway Spruce: Population Structure Analysis and Comparative Genomic Assessment of Surviving (LTS) and Randomly Selected Reference Trees}, author = {Jiří Korecký and Jaroslav Čepl and Nataliya Korolyova and Jan Stejskal and Marek Turčáni and Rastislav Jakuš}, url = {http://dx.doi.org/10.3390/f14102074}, doi = {10.3390/f14102074}, issn = {1999-4907}, year = {2023}, date = {2023-10-01}, journal = {Forests}, volume = {14}, number = {10}, pages = {2074}, publisher = {MDPI AG}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| Kozhoridze, Giorgi; Korolyova, Nataliya; Jakuš, Rastislav Norway spruce susceptibility to bark beetles is associated with increased canopy surface temperature in a year prior disturbance Journal Article Forest Ecology and Management, 547 , pp. 121400, 2023, ISSN: 0378-1127. @article{Kozhoridze_2023, title = {Norway spruce susceptibility to bark beetles is associated with increased canopy surface temperature in a year prior disturbance}, author = {Giorgi Kozhoridze and Nataliya Korolyova and Rastislav Jakuš}, url = {http://dx.doi.org/10.1016/j.foreco.2023.121400}, doi = {10.1016/j.foreco.2023.121400}, issn = {0378-1127}, year = {2023}, date = {2023-01-01}, journal = {Forest Ecology and Management}, volume = {547}, pages = {121400}, publisher = {Elsevier BV}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| Moliterno, Antonioni Acacio Campos; Jakuš, Rastislav; Modlinger, Roman; Unelius, Rikard C; Schlyter, Fredrik; Jirošová, Anna Field effects of oxygenated monoterpenes and estragole combined with pheromone on attraction of Ips typographus and its natural enemies Journal Article Frontiers in Forests and Global Change, 6 , 2023, ISSN: 2624-893X. @article{Moliterno_2023, title = {Field effects of oxygenated monoterpenes and estragole combined with pheromone on attraction of Ips typographus and its natural enemies}, author = {Antonioni Acacio Campos Moliterno and Rastislav Jakuš and Roman Modlinger and Rikard C Unelius and Fredrik Schlyter and Anna Jirošová}, url = {http://dx.doi.org/10.3389/ffgc.2023.1292581}, doi = {10.3389/ffgc.2023.1292581}, issn = {2624-893X}, year = {2023}, date = {2023-01-01}, journal = {Frontiers in Forests and Global Change}, volume = {6}, publisher = {Frontiers Media SA}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| Trubin, Aleksei; Kozhoridze, Giorgi; Zabihi, Khodabakhsh; Modlinger, Roman; Singh, Vivek Vikram; Surový, Peter; Jakuš, Rastislav Detection of susceptible Norway spruce to bark beetle attack using PlanetScope multispectral imagery Journal Article Frontiers in Forests and Global Change, 6 , 2023, ISSN: 2624-893X. @article{Trubin_2023, title = {Detection of susceptible Norway spruce to bark beetle attack using PlanetScope multispectral imagery}, author = {Aleksei Trubin and Giorgi Kozhoridze and Khodabakhsh Zabihi and Roman Modlinger and Vivek Vikram Singh and Peter Surový and Rastislav Jakuš}, url = {http://dx.doi.org/10.3389/ffgc.2023.1130721}, doi = {10.3389/ffgc.2023.1130721}, issn = {2624-893X}, year = {2023}, date = {2023-01-01}, journal = {Frontiers in Forests and Global Change}, volume = {6}, publisher = {Frontiers Media SA}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| Gömöry, Dušan; Ditmarová, Ľubica; Hrivnák, Matúš; Jamnická, Gabriela; Konôpková, Alena; Krajmerová, Diana; Kurjak, Daniel; Marešová, Jana Central European Forestry Journal, 69 (4), pp. 214–223, 2023, ISSN: 2454-0358. @article{G_m_ry_2023, title = {Inconsistent phenotypic differentiation at physiological traits in Norway spruce (Picea abies Karst.) provenances under contrasting water regimes}, author = {Dušan Gömöry and Ľubica Ditmarová and Matúš Hrivnák and Gabriela Jamnická and Alena Konôpková and Diana Krajmerová and Daniel Kurjak and Jana Marešová}, url = {http://dx.doi.org/10.2478/forj-2023-0010}, doi = {10.2478/forj-2023-0010}, issn = {2454-0358}, year = {2023}, date = {2023-01-01}, journal = {Central European Forestry Journal}, volume = {69}, number = {4}, pages = {214–223}, publisher = {Walter de Gruyter GmbH}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2022 |
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| Potterf, Mária; Svitok, Marek; Mezei, Pavel; Jarčuška, Benjamín; Jakuš, Rastislav; Blaženec, Miroslav; Hlásny, Tomáš Contrasting Norway spruce disturbance dynamics in managed forests and strict forest reserves in Slovakia Journal Article Forestry, 96 (3), pp. 387–398, 2022, ISSN: 1464-3626. @article{Potterf_2022, title = {Contrasting Norway spruce disturbance dynamics in managed forests and strict forest reserves in Slovakia}, author = {Mária Potterf and Marek Svitok and Pavel Mezei and Benjamín Jarčuška and Rastislav Jakuš and Miroslav Blaženec and Tomáš Hlásny}, editor = {Dominik Thom}, url = {http://dx.doi.org/10.1093/forestry/cpac045}, doi = {10.1093/forestry/cpac045}, issn = {1464-3626}, year = {2022}, date = {2022-11-01}, journal = {Forestry}, volume = {96}, number = {3}, pages = {387–398}, publisher = {Oxford University Press (OUP)}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2021 |
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 | Majdák, Andrej; Jakuš, Rastislav; Blaženec, Miroslav Determination of differences in temperature regimes on healthy and bark-beetle colonised spruce trees using a handheld thermal camera Journal Article iFOREST, 14 , pp. 203-211, 2021, ISSN: 1971-7458. @article{Majdák2021, title = {Determination of differences in temperature regimes on healthy and bark-beetle colonised spruce trees using a handheld thermal camera}, author = {Andrej Majdák and Rastislav Jakuš and Miroslav Blaženec}, doi = {https://doi.org/10.3832/ifor3531-014}, issn = {1971-7458}, year = {2021}, date = {2021-05-02}, journal = {iFOREST}, volume = {14}, pages = {203-211}, abstract = {In this study, we compared the daily temperature regimes of healthy uninfected trees in the interior of a forest stand and at the fresh forest edge with infested trees at the forest edge in an area affected by a bark beetle outbreak. We estimated the potential of a handheld thermal camera for early identification of bark-beetle infested trees. We show that infested trees have significantly higher trunk temperatures than uninfested trees, which is more visible on the shine side of the trunk, and we report the differences in temperature between the shine and shadow sides. The differences are more noticeable on a warm, bright, and sunny day than on cold and cloudy day. The different intensity of solar radiation does not affect the distinction between infested and uninfested trees. The handheld thermal camera shows potential for identifying bark-beetle infested trees by scanning tree trunks on bright sunny days.}, keywords = {}, pubstate = {published}, tppubtype = {article} } In this study, we compared the daily temperature regimes of healthy uninfected trees in the interior of a forest stand and at the fresh forest edge with infested trees at the forest edge in an area affected by a bark beetle outbreak. We estimated the potential of a handheld thermal camera for early identification of bark-beetle infested trees. We show that infested trees have significantly higher trunk temperatures than uninfested trees, which is more visible on the shine side of the trunk, and we report the differences in temperature between the shine and shadow sides. The differences are more noticeable on a warm, bright, and sunny day than on cold and cloudy day. The different intensity of solar radiation does not affect the distinction between infested and uninfested trees. The handheld thermal camera shows potential for identifying bark-beetle infested trees by scanning tree trunks on bright sunny days. |
Blaženec, Miroslav; Majdák, Andrej; Jakuš, Rastislav Improvement of Ips typographus catches in pheromone trap barriers by altering of sex assigned pheromone blends Journal Article Folia Oecologica, 48 (1), pp. 25-34, 2021. @article{Blaženec2021, title = {Improvement of Ips typographus catches in pheromone trap barriers by altering of sex assigned pheromone blends}, author = {Miroslav Blaženec and Andrej Majdák and Rastislav Jakuš}, url = {http://ife.sk/wp-content/uploads/2020/09/foecol-2021-0003.pdf}, doi = {10.2478/foecol-2021-0003}, year = {2021}, date = {2021-02-01}, journal = {Folia Oecologica}, volume = {48}, number = {1}, pages = {25-34}, abstract = {The present study was based on the idea of a pheromone trap barrier with alternating dispensers releasing different pheromone mixtures that affect males and females differently. We tested the possibility of increasing the catch efficacy of pheromone trap barriers by altering the pheromone mixture with low levels of cis-Verbenol (cV, targeting males, BM), the mixture with high levels of cV (targeting females, BF) and the pheromone mixture with intermediate levels of cV (SL). In addition, we were interested in lowering the dispersion of attracted bark beetles, especially males, which reduces the risk of attack on trees in the surroundings. Significant highest absolute and relative catch was found in the catch of the combination BM–BF, which was 2.2-fold higher than the catch of the control barrier treated with commercial IT Ecolure baits (Fytofarm, Slovakia). At the same time, the lowest dispersal in the surroundings of the barrier with the combination BM–BF was found, which was 2.5-fold lower than in the control barrier. The performance of the BM–BF combination of mixtures was proved in a field trial experiment where the total season catch of the part of the barrier treated with BM–BF dispensers caught 1.5-fold more beetles during the season than the control part treated with IT Ecolure dispensers. Furthermore, the results confirm that the performance of the combination of low levels of cV (targeting males) and high levels of cV (targeting females) is complemented by the desired reduced dispersion around the barrier, which reduces the risk of attack on trees in the surroundings.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The present study was based on the idea of a pheromone trap barrier with alternating dispensers releasing different pheromone mixtures that affect males and females differently. We tested the possibility of increasing the catch efficacy of pheromone trap barriers by altering the pheromone mixture with low levels of cis-Verbenol (cV, targeting males, BM), the mixture with high levels of cV (targeting females, BF) and the pheromone mixture with intermediate levels of cV (SL). In addition, we were interested in lowering the dispersion of attracted bark beetles, especially males, which reduces the risk of attack on trees in the surroundings. Significant highest absolute and relative catch was found in the catch of the combination BM–BF, which was 2.2-fold higher than the catch of the control barrier treated with commercial IT Ecolure baits (Fytofarm, Slovakia). At the same time, the lowest dispersal in the surroundings of the barrier with the combination BM–BF was found, which was 2.5-fold lower than in the control barrier. The performance of the BM–BF combination of mixtures was proved in a field trial experiment where the total season catch of the part of the barrier treated with BM–BF dispensers caught 1.5-fold more beetles during the season than the control part treated with IT Ecolure dispensers. Furthermore, the results confirm that the performance of the combination of low levels of cV (targeting males) and high levels of cV (targeting females) is complemented by the desired reduced dispersion around the barrier, which reduces the risk of attack on trees in the surroundings. | |
2020 |
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 | Hroššo, Branislav; Mezei, Pavel; Potterf, Mária; Majdák, Andrej; Blaženec, Miroslav; Korolyova, Nataliya; Jakuš, Rastislav Drivers of Spruce Bark Beetle (Ips typographus) Infestations on Downed Trees after Severe Windthrow Journal Article Forests, 11 , 2020, ISSN: 1999-4907. @article{Hroššo2020, title = {Drivers of Spruce Bark Beetle (\textit{Ips typographus}) Infestations on Downed Trees after Severe Windthrow}, author = {Branislav Hroššo and Pavel Mezei and Mária Potterf and Andrej Majdák and Miroslav Blaženec and Nataliya Korolyova and Rastislav Jakuš}, doi = {10.3390/f11121290}, issn = {1999-4907}, year = {2020}, date = {2020-11-30}, journal = {Forests}, volume = {11}, abstract = {Research Highlights: Bark beetles are important agents of disturbance regimes in temperate forests, and specifically in a connected wind-bark beetle disturbance system. Large-scale windthrows trigger population growth of the European spruce bark beetle (Ips typographus L.) from endemic to epidemic levels, thereby allowing the killing of Norway spruce trees over several consecutive years. Background and Objectives: There is a lack of evidence to differentiate how outbreaks are promoted by the effects of environmental variables versus beetle preferences of trees from endemic to outbreak. However, little is known about how individual downed-tree characteristics and local conditions such as tree orientation and solar radiation affect beetle colonization of downed trees. Materials and Methods: To answer this question, we investigated the infestation rates and determined tree death categories (uprooted, broken, and stump) in wind-damaged areas in Western Tatra Mts. in Carpathians (Slovakia) from 2014–2016, following a windthrow in May 2014. In total, we investigated 225 trees over eight transects. For every tree, we measured its morphological (tree height, crown characteristics), environmental (solar radiation, terrain conditions, trunk zenith), temporal (time since wind damage), and beetle infestation (presence, location of attack, bark desiccation) parameters. We applied Generalized Additive Mixed Models (GAMM) to unravel the main drivers of I. typographus infestations. Results: Over the first year, beetles preferred to attack broken trees and sun-exposed trunk sides over uprooted trees; the infestation on shaded sides started in the second year along with the infestation of uprooted trees with lower desiccation rates. We found that time since wind damage, stem length, and incident solar radiation increased the probability of beetle infestation, although both solar radiation and trunk zenith exhibited nonlinear variability. Our novel variable trunk zenith appeared to be an important predictor of bark beetle infestation probability. We conclude that trunk zenith as a simple measure defining the position of downed trees over the terrain can anticipate beetle infestation. Conclusions: Our findings contribute to understanding of the bark beetle’s preferences to colonize windthrown trees in the initial years after the primary wind damage. Further, our findings can help to identify trees that are most susceptible to beetle infestation and to prioritize management actions to control beetle population while maintaining biodiversity.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Research Highlights: Bark beetles are important agents of disturbance regimes in temperate forests, and specifically in a connected wind-bark beetle disturbance system. Large-scale windthrows trigger population growth of the European spruce bark beetle (Ips typographus L.) from endemic to epidemic levels, thereby allowing the killing of Norway spruce trees over several consecutive years. Background and Objectives: There is a lack of evidence to differentiate how outbreaks are promoted by the effects of environmental variables versus beetle preferences of trees from endemic to outbreak. However, little is known about how individual downed-tree characteristics and local conditions such as tree orientation and solar radiation affect beetle colonization of downed trees. Materials and Methods: To answer this question, we investigated the infestation rates and determined tree death categories (uprooted, broken, and stump) in wind-damaged areas in Western Tatra Mts. in Carpathians (Slovakia) from 2014–2016, following a windthrow in May 2014. In total, we investigated 225 trees over eight transects. For every tree, we measured its morphological (tree height, crown characteristics), environmental (solar radiation, terrain conditions, trunk zenith), temporal (time since wind damage), and beetle infestation (presence, location of attack, bark desiccation) parameters. We applied Generalized Additive Mixed Models (GAMM) to unravel the main drivers of I. typographus infestations. Results: Over the first year, beetles preferred to attack broken trees and sun-exposed trunk sides over uprooted trees; the infestation on shaded sides started in the second year along with the infestation of uprooted trees with lower desiccation rates. We found that time since wind damage, stem length, and incident solar radiation increased the probability of beetle infestation, although both solar radiation and trunk zenith exhibited nonlinear variability. Our novel variable trunk zenith appeared to be an important predictor of bark beetle infestation probability. We conclude that trunk zenith as a simple measure defining the position of downed trees over the terrain can anticipate beetle infestation. Conclusions: Our findings contribute to understanding of the bark beetle’s preferences to colonize windthrown trees in the initial years after the primary wind damage. Further, our findings can help to identify trees that are most susceptible to beetle infestation and to prioritize management actions to control beetle population while maintaining biodiversity. |
 | Marešová, Jana; Majdák, Andrej; Jakuš, Rastislav; Hradecký, Jaromír; Kalinová, Blanka; Blaženec, Miroslav The short-term effect of sudden gap creation on tree temperature and volatile composition profiles in a Norway spruce stand Journal Article Trees-Structure and Function, 34 (6), pp. 1397–1409, 2020, ISSN: 0931-1890. @article{Marešová2020, title = {The short-term effect of sudden gap creation on tree temperature and volatile composition profiles in a Norway spruce stand}, author = {Jana Marešová and Andrej Majdák and Rastislav Jakuš and Jaromír Hradecký and Blanka Kalinová and Miroslav Blaženec}, doi = {10.1007/s00468-020-02010-w}, issn = {0931-1890}, year = {2020}, date = {2020-08-05}, journal = {Trees-Structure and Function}, volume = {34}, number = {6}, pages = {1397–1409}, abstract = {Spruce bark beetles are likely to attack trees that are at newly opened forest edges after wind disturbance due to higher temperatures and higher emission of primary attractants. The mechanisms behind these phenomena are still not fully known. We investigated how sudden gap creation affects tree physiology parameters related to induced defence processes in Norway spruce trees 2 months after the disturbance driven gap formation. We hypothesized that the sudden sun exposure of mature spruce trees would increase: (1) bark and crown temperatures, (2) sap flow rates, and (3) the phloem and airborne concentration of terpenes. Using a terrestrial and airborne thermal camera, sap flow sensors, and chromatography, we confirmed that trees at the forest edge had significantly higher (1) mean tree crown temperature, (2) mean sap flow rates (2-fold higher) and (3) airborne concentration of α-pinene (αP, 12.2-fold higher) and β-pinene (βP, 7.9-fold higher) close to the bark. We observed a significant positive correlation (R2 = 0.77) between the measured sap flow rates and terpene concentrations in airborne samples. Bark temperatures were not significant. In the phloem samples, analyzed by GC–MS, αP and βP predominated over monoterpenes 3-carene, myrcene, limonene, 1.8-cineole, and bornyl acetate. GC × GC–TOF–MS analysis of phloem showed a higher relative abundance of resin acid methyl esters in the forest interior trees and higher relative abundances of dehydro-p-cymene in the trees at the forest edge. Our findings are discussed in the context of the enhanced predisposition of trees at the newly formed forest edge to bark beetles attack.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Spruce bark beetles are likely to attack trees that are at newly opened forest edges after wind disturbance due to higher temperatures and higher emission of primary attractants. The mechanisms behind these phenomena are still not fully known. We investigated how sudden gap creation affects tree physiology parameters related to induced defence processes in Norway spruce trees 2 months after the disturbance driven gap formation. We hypothesized that the sudden sun exposure of mature spruce trees would increase: (1) bark and crown temperatures, (2) sap flow rates, and (3) the phloem and airborne concentration of terpenes. Using a terrestrial and airborne thermal camera, sap flow sensors, and chromatography, we confirmed that trees at the forest edge had significantly higher (1) mean tree crown temperature, (2) mean sap flow rates (2-fold higher) and (3) airborne concentration of α-pinene (αP, 12.2-fold higher) and β-pinene (βP, 7.9-fold higher) close to the bark. We observed a significant positive correlation (R2 = 0.77) between the measured sap flow rates and terpene concentrations in airborne samples. Bark temperatures were not significant. In the phloem samples, analyzed by GC–MS, αP and βP predominated over monoterpenes 3-carene, myrcene, limonene, 1.8-cineole, and bornyl acetate. GC × GC–TOF–MS analysis of phloem showed a higher relative abundance of resin acid methyl esters in the forest interior trees and higher relative abundances of dehydro-p-cymene in the trees at the forest edge. Our findings are discussed in the context of the enhanced predisposition of trees at the newly formed forest edge to bark beetles attack. |
 | Duračiová, Renata; Muňko, Milan; Barka, Ivan; Koreň, Milan; Resnerová, Karolina; Holuša, Jaroslav; Blaženec, Miroslav; Potterf, Mária; Jakuš, Rastislav A bark beetle infestation predictive model based on satellite data in the frame of decision support system TANABBO Journal Article iFOREST, 13 (3), pp. 215-223, 2020, ISSN: 1971-7458. @article{Duračiová2020, title = {A bark beetle infestation predictive model based on satellite data in the frame of decision support system TANABBO}, author = {Renata Duračiová and Milan Muňko and Ivan Barka and Milan Koreň and Karolina Resnerová and Jaroslav Holuša and Miroslav Blaženec and Mária Potterf and Rastislav Jakuš}, doi = {10.3832/ifor3271-013}, issn = {1971-7458}, year = {2020}, date = {2020-06-06}, journal = {iFOREST}, volume = {13}, number = {3}, pages = {215-223}, abstract = {The European spruce bark beetle Ips typographus L. causes significant economic losses in managed coniferous forests in Central and Northern Europe. New infestations either occur in previously undisturbed forest stands (i.e., spot initiation) or depend on proximity to previous years’ infestations (i.e., spot spreading). Early identification of newly infested trees over the forested landscape limits the effective control measures. Accurate forecasting of the spread of bark beetle infestation is crucial to plan efficient sanitation felling of infested trees and prevent further propagation of beetle-induced tree mortality. We created a predictive model of subsequent year spot initiation and spot spreading within the TANABBO decision support system. The algorithm combines open-access Landsat-based vegetation change time-series data, a digital terrain model, and forest stand characteristics. We validated predicted susceptibility to bark beetle attack (separately for spot initiation and spot spreading) against beetle infestations in managed forests in the Bohemian Forest in the Czech Republic (Central Europe) in yearly time steps from 2007 to 2010. The predictive models of susceptibility to bark beetle attack had a high degree of reliability (area under the ROC curve - AUC: 0.75-0.82). We conclude that spot initiation and spot spreading prediction modules included within the TANABBO model have the potential to help forest managers to plan sanitation felling in managed forests under pressure of bark beetle outbreak.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The European spruce bark beetle Ips typographus L. causes significant economic losses in managed coniferous forests in Central and Northern Europe. New infestations either occur in previously undisturbed forest stands (i.e., spot initiation) or depend on proximity to previous years’ infestations (i.e., spot spreading). Early identification of newly infested trees over the forested landscape limits the effective control measures. Accurate forecasting of the spread of bark beetle infestation is crucial to plan efficient sanitation felling of infested trees and prevent further propagation of beetle-induced tree mortality. We created a predictive model of subsequent year spot initiation and spot spreading within the TANABBO decision support system. The algorithm combines open-access Landsat-based vegetation change time-series data, a digital terrain model, and forest stand characteristics. We validated predicted susceptibility to bark beetle attack (separately for spot initiation and spot spreading) against beetle infestations in managed forests in the Bohemian Forest in the Czech Republic (Central Europe) in yearly time steps from 2007 to 2010. The predictive models of susceptibility to bark beetle attack had a high degree of reliability (area under the ROC curve - AUC: 0.75-0.82). We conclude that spot initiation and spot spreading prediction modules included within the TANABBO model have the potential to help forest managers to plan sanitation felling in managed forests under pressure of bark beetle outbreak. |
2019 |
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 | Mezei, Pavel; Potterf, Mária; Škvarenina, Jaroslav; Rasmussen, Jakob Gulddahl; Jakuš, Rastislav Potential Solar Radiation as a Driver for Bark Beetle Infestation on a Landscape Scale Journal Article Forests, 10 (7), 2019, ISSN: 1999-4907. @article{Mezei2019, title = {Potential Solar Radiation as a Driver for Bark Beetle Infestation on a Landscape Scale}, author = {Pavel Mezei and Mária Potterf and Jaroslav Škvarenina and Jakob Gulddahl Rasmussen and Rastislav Jakuš}, doi = {10.3390/f10070604}, issn = {1999-4907}, year = {2019}, date = {2019-07-19}, journal = {Forests}, volume = {10}, number = {7}, abstract = {In recent decades, Norway spruce (Picea abies L. Karst.) forests of the High Tatra Mountains have suffered unprecedented tree mortality caused by European spruce bark beetle (Ips typographus L.). Analysis of the spatiotemporal pattern of bark beetle outbreaks across the landscape in consecutive years can provide new insights into the population dynamics of tree-killing insects. A bark beetle outbreak occurred in the High Tatra Mountains after a storm damaged more than 10,000 ha of forests in 2004. We combined yearly Landsat-derived bark beetle infestation spots from 2006 to 2014 and meteorological data to identify the susceptibility of forest stands to beetle infestation. We found that digital elevation model (DEM)-derived potential radiation loads predicted beetle infestation, especially in the peak phase of beetle epidemic. Moreover, spots attacked at the beginning of our study period had higher values of received solar radiation than spots at the end of the study period, indicating that bark beetles prefer sites with higher insolation during outbreak. We conclude that solar radiation, easily determined from the DEM, better identified beetle infestations than commonly used meteorological variables. We recommend including potential solar radiation in beetle infestation prediction models. }, keywords = {}, pubstate = {published}, tppubtype = {article} } In recent decades, Norway spruce (Picea abies L. Karst.) forests of the High Tatra Mountains have suffered unprecedented tree mortality caused by European spruce bark beetle (Ips typographus L.). Analysis of the spatiotemporal pattern of bark beetle outbreaks across the landscape in consecutive years can provide new insights into the population dynamics of tree-killing insects. A bark beetle outbreak occurred in the High Tatra Mountains after a storm damaged more than 10,000 ha of forests in 2004. We combined yearly Landsat-derived bark beetle infestation spots from 2006 to 2014 and meteorological data to identify the susceptibility of forest stands to beetle infestation. We found that digital elevation model (DEM)-derived potential radiation loads predicted beetle infestation, especially in the peak phase of beetle epidemic. Moreover, spots attacked at the beginning of our study period had higher values of received solar radiation than spots at the end of the study period, indicating that bark beetles prefer sites with higher insolation during outbreak. We conclude that solar radiation, easily determined from the DEM, better identified beetle infestations than commonly used meteorological variables. We recommend including potential solar radiation in beetle infestation prediction models. |
 | Denisa Sedmáková Róbert Sedmák, Michal Bosela Marek Ježík Miroslav Blaženec Tomáš Hlásny Róbert Marušák Dendrochronologia, 54 , pp. 67-48, 2019, ISSN: 1125-7865. @article{Sedmáková2019, title = {Growth-climate responses indicate shifts in the competitive ability of European beech and Norway spruce under recent climate warming in East-Central Europe}, author = {Denisa Sedmáková, Róbert Sedmák, Michal Bosela, Marek Ježík, Miroslav Blaženec, Tomáš Hlásny, Róbert Marušák}, doi = {10.1016/j.dendro.2019.02.001}, issn = {1125-7865}, year = {2019}, date = {2019-04-01}, journal = {Dendrochronologia}, volume = {54}, pages = {67-48}, abstract = {Long-term changes in climate substantially affect the tree growth and species distribution in Europe. In the presented study, the radial growth of Fagus sylvatica (L.) and Picea abies ((L.) Karst.) has been studied along an altitudinal gradient covering six vegetation formations characteristic for sub-montane, montane and high-montane conditions of the western Carpathians. Tree growth responses to temperature and precipitation changes have been analysed based on the sample of increment cores and standard dendroclimatic methods in two time periods, the reference period 1961–1990 and the recent period 1991–2012. The growth responses of spruce and beech to recent changes in climate were similar up to high-montane zones, where the beech shows significantly larger improvements of radial increments in comparison to spruce. The growth responses were mainly temperature driven. In the sub-montane area, the increased effect of precipitation in the recent period was overridden by the negative effects of warming, and the alleviated temperature limitation had an evidently supportive effect on tree growth in montane and high-montane areas. In the near future, the warming will likely cause decline in radial increments of beech and spruce in sub-montane areas due to expected landscape drying. At the same time, the improved competitive ability of beech in the high-montane zones suggests a shift in the leading edge of beech distribution into higher altitudes in East-Central Europe.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Long-term changes in climate substantially affect the tree growth and species distribution in Europe. In the presented study, the radial growth of Fagus sylvatica (L.) and Picea abies ((L.) Karst.) has been studied along an altitudinal gradient covering six vegetation formations characteristic for sub-montane, montane and high-montane conditions of the western Carpathians. Tree growth responses to temperature and precipitation changes have been analysed based on the sample of increment cores and standard dendroclimatic methods in two time periods, the reference period 1961–1990 and the recent period 1991–2012. The growth responses of spruce and beech to recent changes in climate were similar up to high-montane zones, where the beech shows significantly larger improvements of radial increments in comparison to spruce. The growth responses were mainly temperature driven. In the sub-montane area, the increased effect of precipitation in the recent period was overridden by the negative effects of warming, and the alleviated temperature limitation had an evidently supportive effect on tree growth in montane and high-montane areas. In the near future, the warming will likely cause decline in radial increments of beech and spruce in sub-montane areas due to expected landscape drying. At the same time, the improved competitive ability of beech in the high-montane zones suggests a shift in the leading edge of beech distribution into higher altitudes in East-Central Europe. |
 | Potterf, Mária; Nikolov, Christo; Kočická, Erika; Ferenčík, Ján; Mezei, Pavel; Jakuš, Rastislav Forest Ecology and Management, 432 , pp. 489-500, 2019, ISSN: 0378-1127. @article{Potterf2019, title = {Landscape-level spread of beetle infestations from windthrown- and beetle-killed trees in the non-intervention zone of the Tatra National Park, Slovakia (Central Europe)}, author = {Mária Potterf and Christo Nikolov and Erika Kočická and Ján Ferenčík and Pavel Mezei and Rastislav Jakuš}, doi = {10.1016/j.foreco.2018.09.050}, issn = {0378-1127}, year = {2019}, date = {2019-01-15}, journal = {Forest Ecology and Management}, volume = {432}, pages = {489-500}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2017 |
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 | Mezei, Pavel; Blaženec, Miroslav; Grodzki, Wojciech; Škvarenina, Jaroslav; Jakuš, Rastislav Influence of different forest protection strategies on spruce tree mortality during a bark beetle outbreak Journal Article Annals of Forest Science, 74 , 2017, ISSN: 1297-966X. @article{Mezei2017b, title = {Influence of different forest protection strategies on spruce tree mortality during a bark beetle outbreak}, author = {Pavel Mezei and Miroslav Blaženec and Wojciech Grodzki and Jaroslav Škvarenina and Rastislav Jakuš}, url = {http://rdcu.be/wnGe}, doi = {doi.org/10.1007/s13595-017-0663-9}, issn = {1297-966X}, year = {2017}, date = {2017-09-27}, journal = {Annals of Forest Science}, volume = {74}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Havašová, M; Ferenčík, J; Jakuš, R Interactions between windthrow, bark beetles and forest management in the Tatra national parks Journal Article Forest Ecology and Management, 391 , pp. 349-361, 2017, ISSN: 03781127. @article{M.2017, title = {Interactions between windthrow, bark beetles and forest management in the Tatra national parks}, author = {M. Havašová and J. Ferenčík and R. Jakuš}, url = {http://www.sciencedirect.com/science/article/pii/S0378112717300361}, doi = {https://doi.org/10.1016/j.foreco.2017.01.009}, issn = {03781127}, year = {2017}, date = {2017-05-01}, journal = {Forest Ecology and Management}, volume = {391}, pages = {349-361}, abstract = {Natural disturbances such as windthrow and bark beetle Ips typographus L. outbreak often affect protected areas with non-intervention type of management located in close proximity to managed forest stands. This raises concerns about the migration of the beetle outbreak from non-intervention zones to adjacent managed forests. In this study we analyzed the spatiotemporal dynamics of large-scale disturbances by intervention and non-intervention type of management in the Tatra mountains (Central Europe). We collected a time series of Landsat images from 2003 to 2014, and applied maximum likelihood classification to map the extent of forest, windthrow, clear-cuts, beetle outbreak and fire. Our classified maps achieved high overall accuracies: 0.93 ± 0.03 ≤ OA ≤ 0.96 ± 0.03. The extent of forest declined over the study period. We found higher rate of beetle induced tree mortality in non-intervention versus intervention zone. Within two growing seasons after the windthrow, beetle infestation occurred in close proximity to uncleared windthrow (< ~ 250 m), which suggest the positive effect of salvage logging (removal of windthrown trees) on lowering the risk of beetle outbreak. The two times higher sum of disturbances in intervention then in non-intervention zone indicated the limited impact of sanitation felling (removal of standing beetle infested trees) to reduce beetle population. However, sanitation felling highly contributed to the decline of the forest cover. Overall, our results document the dynamics of windthrow, bark beetle and clear-cuts by type of management, and limited impact of logging activities in reducing beetle outbreak in neighboring areas with intervention and non-intervention type of management.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Natural disturbances such as windthrow and bark beetle Ips typographus L. outbreak often affect protected areas with non-intervention type of management located in close proximity to managed forest stands. This raises concerns about the migration of the beetle outbreak from non-intervention zones to adjacent managed forests. In this study we analyzed the spatiotemporal dynamics of large-scale disturbances by intervention and non-intervention type of management in the Tatra mountains (Central Europe). We collected a time series of Landsat images from 2003 to 2014, and applied maximum likelihood classification to map the extent of forest, windthrow, clear-cuts, beetle outbreak and fire. Our classified maps achieved high overall accuracies: 0.93 ± 0.03 ≤ OA ≤ 0.96 ± 0.03. The extent of forest declined over the study period. We found higher rate of beetle induced tree mortality in non-intervention versus intervention zone. Within two growing seasons after the windthrow, beetle infestation occurred in close proximity to uncleared windthrow (< ~ 250 m), which suggest the positive effect of salvage logging (removal of windthrown trees) on lowering the risk of beetle outbreak. The two times higher sum of disturbances in intervention then in non-intervention zone indicated the limited impact of sanitation felling (removal of standing beetle infested trees) to reduce beetle population. However, sanitation felling highly contributed to the decline of the forest cover. Overall, our results document the dynamics of windthrow, bark beetle and clear-cuts by type of management, and limited impact of logging activities in reducing beetle outbreak in neighboring areas with intervention and non-intervention type of management. |
 | Mezei, P; Jakuš, R; Pennerstorfer, J; Havašová, M; Škvarenina, J; Ferenčík, J; Slivinský, J; Bičárová, S; Bilčík, D; Blaženec, M; Netherer, S Agricultural and Forest Meteorology, 242 , pp. 85-95, 2017. @article{Mezei2017, title = {Storms, temperature maxima and the Eurasian spruce bark beetle \textit{Ips typographus} — an infernal trio in Norway spruce forests of the Central European High Tatra Mountains}, author = {P. Mezei and R. Jakuš and J. Pennerstorfer and M. Havašová and J. Škvarenina and J. Ferenčík and J. Slivinský and S. Bičárová and D. Bilčík and M. Blaženec and S. Netherer}, url = {http://ife.sk/wp-content/uploads/2016/10/Figure_4_20170406_2-pdf-300x192.jpghttp://www.sciencedirect.com/science/article/pii/S0168192317301326}, doi = {10.1016/j.agrformet.2017.04.004}, year = {2017}, date = {2017-04-10}, journal = { Agricultural and Forest Meteorology}, volume = {242}, pages = {85-95}, abstract = {Norway spruce forests (Picea abies Karst.) of the Carpathian High Tatra Mountains have been subject to unprecedented tree mortality caused by attacks of the Eurasian spruce bark beetle (Ips typographus L.) in recent decades. The outbreaks were preceded and accompanied by wind throw events and periods of increased seasonal temperature. We obtained climatic data and data on tree mortality due to storm throw and bark beetles by using a combination of direct dead tree inventory and remote sensing techniques, and examined annual tree loss change over a 26-year period in a forest district of the Slovak High Tatra National Park. In particular, we found that the combination of the previous year's maximum daily temperature sum, tree mortality caused by wind, and bark beetle-caused tree mortality best explained the annual tree loss change in nonlinear regression models. The number of trees infested by bark beetles clearly increased with maximum air temperature sums ranging from 2850 to 3150 ° days, but declined below or above this thermal optimum. Annual tree mortality clearly increased subsequent to years associated with seasonal temperature sums allowing for the development of sister broods. Given consistently favourable future climatic conditions for development of I. typographus populations in the study area, a possible shift from the now predominantly uni-voltine to multi-voltine bark beetle populations might increase attack pressure also at high elevation sites.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Norway spruce forests (Picea abies Karst.) of the Carpathian High Tatra Mountains have been subject to unprecedented tree mortality caused by attacks of the Eurasian spruce bark beetle (Ips typographus L.) in recent decades. The outbreaks were preceded and accompanied by wind throw events and periods of increased seasonal temperature. We obtained climatic data and data on tree mortality due to storm throw and bark beetles by using a combination of direct dead tree inventory and remote sensing techniques, and examined annual tree loss change over a 26-year period in a forest district of the Slovak High Tatra National Park. In particular, we found that the combination of the previous year's maximum daily temperature sum, tree mortality caused by wind, and bark beetle-caused tree mortality best explained the annual tree loss change in nonlinear regression models. The number of trees infested by bark beetles clearly increased with maximum air temperature sums ranging from 2850 to 3150 ° days, but declined below or above this thermal optimum. Annual tree mortality clearly increased subsequent to years associated with seasonal temperature sums allowing for the development of sister broods. Given consistently favourable future climatic conditions for development of I. typographus populations in the study area, a possible shift from the now predominantly uni-voltine to multi-voltine bark beetle populations might increase attack pressure also at high elevation sites. |
 | Potterf, M; Bone, C Simulating bark beetle population dynamics in response to windthrow events Journal Article Ecological Complexity, 32 , pp. 21-30, 2017, ISSN: 1476-945X. @article{Potterf2017, title = {Simulating bark beetle population dynamics in response to windthrow events}, author = {M. Potterf and C. Bone}, doi = {https://doi.org/10.1016/j.ecocom.2017.08.003}, issn = {1476-945X}, year = {2017}, date = {2017-01-01}, journal = {Ecological Complexity}, volume = {32}, pages = {21-30}, abstract = {The relationship between windthrow disturbance and outbreaks of European spruce bark beetle Ips typographus L. in European Norway spruce forests has been the focus of recent studies. However, the nature in which the spatial characteristics of windthrow events influence bark beetle population dynamics is rarely examined. This represents a significant gap in the literature, as our understanding of how spatial windthrow patterns influence bark beetles can be useful for management efforts to help mitigate large-scale bark beetle disturbance. The objective of this study is to simulate how windthrow events facilitate bark beetle population state transitions from endemic and epidemic levels using a spatially explicit agent-based model. We examined how the spatial extent of windthrow events and the size of tree clusters impacted by windthrow influence this state transition. The results show that the beetle population transition slows with increasing spatial extent of a windthrow event and with larger clusters of windthrown trees, while scattered patterns of windthrown trees accelerate the timing of this transition. This study contributes to our understanding of the role of large-scale wind disturbance in European bark beetle outbreaks. Moreover, it provides a basis for further research to discover the impact of potential forest management applications aiming to mitigate the risk of bark beetle outbreaks.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The relationship between windthrow disturbance and outbreaks of European spruce bark beetle Ips typographus L. in European Norway spruce forests has been the focus of recent studies. However, the nature in which the spatial characteristics of windthrow events influence bark beetle population dynamics is rarely examined. This represents a significant gap in the literature, as our understanding of how spatial windthrow patterns influence bark beetles can be useful for management efforts to help mitigate large-scale bark beetle disturbance. The objective of this study is to simulate how windthrow events facilitate bark beetle population state transitions from endemic and epidemic levels using a spatially explicit agent-based model. We examined how the spatial extent of windthrow events and the size of tree clusters impacted by windthrow influence this state transition. The results show that the beetle population transition slows with increasing spatial extent of a windthrow event and with larger clusters of windthrown trees, while scattered patterns of windthrown trees accelerate the timing of this transition. This study contributes to our understanding of the role of large-scale wind disturbance in European bark beetle outbreaks. Moreover, it provides a basis for further research to discover the impact of potential forest management applications aiming to mitigate the risk of bark beetle outbreaks. |
![TANABBO II model pro hodnocení rizika napadení lesních porostů lýkožroutem smrkovým Ips typographus (L.) [Coleoptera: Curculionidae]](http://ife.sk/wp-content/uploads/2020/09/jakus_2007.png) | Jakuš, Rastislav; Blaženec, Miroslav; doc. Koreň, Mgr. Milan; Barka, Ivan; Lukášová, Karolina; Lubojacký, Jan; Holuša, Jaroslav TANABBO II model pro hodnocení rizika napadení lesních porostů lýkožroutem smrkovým Ips typographus (L.) [Coleoptera: Curculionidae] Book 1/2017, Výzkumný ústav lesního hospodářství a myslivosti, 2017. @book{Jakuš2017, title = {TANABBO II model pro hodnocení rizika napadení lesních porostů lýkožroutem smrkovým \textit{Ips typographus} (L.) [Coleoptera: Curculionidae]}, author = {Rastislav Jakuš and Miroslav Blaženec and doc. Mgr. Milan Koreň and Ivan Barka and Karolina Lukášová and Jan Lubojacký and Jaroslav Holuša}, year = {2017}, date = {2017-01-01}, publisher = {Výzkumný ústav lesního hospodářství a myslivosti}, edition = {1/2017}, keywords = {}, pubstate = {published}, tppubtype = {book} } |
2016 |
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 | Chalachanová, Jana Faixová; Ďuračiová, Renata; Papčo, Juraj; Jakuš, Rastislav; Blaženec, Miroslav Integration of Heterogeneous Data in the Support of the Forest Protection: Structural Concept Journal Article Lecture Notes in Geoinformation and Cartography, pp. 387-405, 2016, ISSN: 1863-2246. @article{Chalachanová2016, title = {Integration of Heterogeneous Data in the Support of the Forest Protection: Structural Concept}, author = {Jana Faixová Chalachanová and Renata Ďuračiová and Juraj Papčo and Rastislav Jakuš and Miroslav Blaženec}, doi = {10.1007/978-3-319-45123-7_28}, issn = {1863-2246}, year = {2016}, date = {2016-10-15}, journal = {Lecture Notes in Geoinformation and Cartography}, pages = {387-405}, abstract = {The basic precondition for effective management and protection of a forest is a concept built on modern methods of collection, processing, analysis and publication of spatial data about forest coverage, as well as its health status. This paper provides a structural concept for integration of heterogeneous data in the support of the forest protection with implementation of the latest methods of remote sensing data collection. The main principles of the structural concept of Forest protection management system (FPMS) result from the assessment of the current and new available data sources (represented by the Diagram of data sources), data analysis and development of innovative mathematical techniques of image processing (represented by the Diagram of methods and tools). Mind maps of the proposed diagrams were created in the free mind mapping application FreeMind. The structural concept is represented by an analytical model of the co-operation of data sources, tools and applications. The dynamic structure was proposed using Unified Modelling Language (UML). The Diagram of the use cases is represented by a Use Case Diagram in UML. The Diagram of the processes, which describes the main processes realized within forest protection management, is represented by an Activity Diagram in UML. The UML diagrams were created in open-source software StarUML. The resulted structural concept of FPMS is the basis of a predictive model improvement and a web application development for the forest protection from the bark beetle.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The basic precondition for effective management and protection of a forest is a concept built on modern methods of collection, processing, analysis and publication of spatial data about forest coverage, as well as its health status. This paper provides a structural concept for integration of heterogeneous data in the support of the forest protection with implementation of the latest methods of remote sensing data collection. The main principles of the structural concept of Forest protection management system (FPMS) result from the assessment of the current and new available data sources (represented by the Diagram of data sources), data analysis and development of innovative mathematical techniques of image processing (represented by the Diagram of methods and tools). Mind maps of the proposed diagrams were created in the free mind mapping application FreeMind. The structural concept is represented by an analytical model of the co-operation of data sources, tools and applications. The dynamic structure was proposed using Unified Modelling Language (UML). The Diagram of the use cases is represented by a Use Case Diagram in UML. The Diagram of the processes, which describes the main processes realized within forest protection management, is represented by an Activity Diagram in UML. The UML diagrams were created in open-source software StarUML. The resulted structural concept of FPMS is the basis of a predictive model improvement and a web application development for the forest protection from the bark beetle. |
 | Sedmáková, D; Sedmák, R; Bošela, M; Ježík, M; Sitko, R; Hlásny, T; Blaženec, M Cross-dating tree-ring series of living European beech by isochronic weather records Journal Article Geochronometria, 43 (1), pp. 48-58, 2016, ISSN: 1897-1695. @article{Sedmáková2016, title = {Cross-dating tree-ring series of living European beech by isochronic weather records}, author = {D. Sedmáková and R. Sedmák and M. Bošela and M. Ježík and R. Sitko and T. Hlásny and M. Blaženec}, url = {10.1515/geochr-2015-0030}, doi = {10.1515/geochr-2015-0030}, issn = {1897-1695}, year = {2016}, date = {2016-05-20}, journal = {Geochronometria}, volume = {43}, number = {1}, pages = {48-58}, abstract = {The main objective of the study is to facilitate cross-dating of sensitive tree-ring series from living European beech (Fagus sylvatica L.) trees in the absence of a regional chronology. The main idea lies in the preliminary dating of marker rings or ring patterns visually identified on the wood (before the ring-width measurements), which is independently validated through a moving correlation between a tentative reference chronology and instrumental climate records (after the ring-width measurements). Following the detection of low moving correlations, potentially misdated segments or series are re-examined and a new tentative reference chronology is constructed. The process is repeated as long as a higher correlation with climate is obtainable. The applicability of this method was investigated on three difficult-to-date sets of tree-ring series of beech trees which were growing at temperature-or precipitation-sensitive locations in under-canopy or canopy positions. A good ability of the combined method for the cross-dating was practiced on datasets almost impossible to cross-date by commonly used approaches. Highlighting the actual correlation of ring widths with climate in tree-ring series makes the cross-dating process more independent from human decisions, so the combined cross-dating has the potential to improve the reliability of various dendrochronological studies.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The main objective of the study is to facilitate cross-dating of sensitive tree-ring series from living European beech (Fagus sylvatica L.) trees in the absence of a regional chronology. The main idea lies in the preliminary dating of marker rings or ring patterns visually identified on the wood (before the ring-width measurements), which is independently validated through a moving correlation between a tentative reference chronology and instrumental climate records (after the ring-width measurements). Following the detection of low moving correlations, potentially misdated segments or series are re-examined and a new tentative reference chronology is constructed. The process is repeated as long as a higher correlation with climate is obtainable. The applicability of this method was investigated on three difficult-to-date sets of tree-ring series of beech trees which were growing at temperature-or precipitation-sensitive locations in under-canopy or canopy positions. A good ability of the combined method for the cross-dating was practiced on datasets almost impossible to cross-date by commonly used approaches. Highlighting the actual correlation of ring widths with climate in tree-ring series makes the cross-dating process more independent from human decisions, so the combined cross-dating has the potential to improve the reliability of various dendrochronological studies. |
 | Ježík, M; Blaženec, M; Kučera, J; Střelcová, K; Ditmarová, Ľ The response of intra-annual stem circumference increase of young European beech provenances to 2012-2014 weather variability Journal Article i-Forest, 9 (6), pp. 960-969, 2016, ISSN: 1971-7458. @article{Ježík2016, title = {The response of intra-annual stem circumference increase of young European beech provenances to 2012-2014 weather variability}, author = {M. Ježík and M. Blaženec and J. Kučera and K. Střelcová and Ľ. Ditmarová}, url = {http://www.sisef.it/iforest/contents/?id=ifor1829-009}, doi = {10.3832/ifor1829-009}, issn = {1971-7458}, year = {2016}, date = {2016-01-01}, journal = {i-Forest}, volume = {9}, number = {6}, pages = {960-969}, abstract = {The increasing frequency and severity of extreme weather events, especially droughts, arising from on-going climate changes negatively affect productivity and stability of forest ecosystems. Understanding species responses and suitable ecotypes that are able of adapting to new environmental conditions is increasingly important. The objective of this study was to quantify the relationships between the inter-annual stem circumference increase (SCI) of five European beech (Fagus sylvatica L.) provenances and weather variability during 2012-2014 in a provenance trial located in central Slovakia. SCIs were extracted on daily and weekly scale from hourly data of circumference changes. To detect the main environmental factors influencing SCI seasonal dynamics, intra-seasonal moving correlation functions were calculated. All five provenances responded synchronously to weather conditions, with high correlations among them during the growing season on both daily and weekly scale. The photoperiod exhibited a synchronizing effect on the seasonal peak of SCI as a sign of tree adaptation to long-term seasonal variations in climate. Temperature was the most significant factor influencing SCI dynamics at the beginning of the season. During the summer months, a precipitation deficit, heat waves and the consequently decreased soil water potential significantly affected the SCI of young beech trees, despite the fact that the provenance plot was situated in an area of optimum beech growth. Not only the severity and duration were important but also the timing of drought within a season. Within all seasons, the lowest SCI values were recorded for the provenance from the lowest altitude and the most oceanic climate (northern Germany). A comparison of daily and weekly SCI with first derivatives of growth functions indicated that SCIs were closely related to theoretical incremental processes, especially on a weekly scale. In young beech trees, SCI seemed to represent an appropriate proxy for studying intra-seasonal incremental processes. A newly designed SASB (self adjusting sharp beginning) function fit these processes better than the Gompertz function.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The increasing frequency and severity of extreme weather events, especially droughts, arising from on-going climate changes negatively affect productivity and stability of forest ecosystems. Understanding species responses and suitable ecotypes that are able of adapting to new environmental conditions is increasingly important. The objective of this study was to quantify the relationships between the inter-annual stem circumference increase (SCI) of five European beech (Fagus sylvatica L.) provenances and weather variability during 2012-2014 in a provenance trial located in central Slovakia. SCIs were extracted on daily and weekly scale from hourly data of circumference changes. To detect the main environmental factors influencing SCI seasonal dynamics, intra-seasonal moving correlation functions were calculated. All five provenances responded synchronously to weather conditions, with high correlations among them during the growing season on both daily and weekly scale. The photoperiod exhibited a synchronizing effect on the seasonal peak of SCI as a sign of tree adaptation to long-term seasonal variations in climate. Temperature was the most significant factor influencing SCI dynamics at the beginning of the season. During the summer months, a precipitation deficit, heat waves and the consequently decreased soil water potential significantly affected the SCI of young beech trees, despite the fact that the provenance plot was situated in an area of optimum beech growth. Not only the severity and duration were important but also the timing of drought within a season. Within all seasons, the lowest SCI values were recorded for the provenance from the lowest altitude and the most oceanic climate (northern Germany). A comparison of daily and weekly SCI with first derivatives of growth functions indicated that SCIs were closely related to theoretical incremental processes, especially on a weekly scale. In young beech trees, SCI seemed to represent an appropriate proxy for studying intra-seasonal incremental processes. A newly designed SASB (self adjusting sharp beginning) function fit these processes better than the Gompertz function. |
2015 |
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 | Schlyter, F; Jakuš, R; Han, F Z; Kalinová, B; Mezei, P; Sun, J H; Ma, J H; Ujhelyiová, L; Zhang, Q H Journal of Chemical Ecology, 41 (7), pp. 678-688, 2015. @article{F.2015, title = {Reproductive isolation of \textit{Ips nitidus} and \textit{I. shangrila} in mountain forests of Western China: responses to chiral and achiral candidate pheromone components}, author = {F. Schlyter and R. Jakuš and F.Z. Han and B. Kalinová and P. Mezei and J.H. Sun and J.H. Ma and L. Ujhelyiová and Q.H. Zhang}, url = {https://www.ncbi.nlm.nih.gov/pubmed/26112107}, year = {2015}, date = {2015-07-01}, journal = {Journal of Chemical Ecology}, volume = {41}, number = {7}, pages = {678-688}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Havašová, M; Bucha, T; Ferenčík, J; Jakuš, R Applicability of a vegetation indices-based method to map bark beetle outbreaks in the High Tatra Mountains Journal Article Annals of Forest Research, 58 (2), pp. 295-310, 2015. @article{Havašová2015, title = {Applicability of a vegetation indices-based method to map bark beetle outbreaks in the High Tatra Mountains}, author = {M. Havašová and T. Bucha and J. Ferenčík and R. Jakuš}, url = {http://afrjournal.org/index.php/afr/article/viewFile/388/466}, year = {2015}, date = {2015-05-18}, journal = {Annals of Forest Research}, volume = {58}, number = {2}, pages = {295-310}, abstract = {Automatic identification of forest patches disturbed by the spruce bark beetle Ips typographus L. is crucial to reveal the rules of following bark beetle outbreaks on the landscape scale. Landsat imagery provides free resources to outline past and present gradations of bark beetle outbreaks (BBOs). The objective of this study is to identify the most sensitive vegetation index through different method of vegetation index differencing to identify past and actual bark beetle outbreaks. Six Landsat Thematic Mapper (TM) images, from 2005–2009 and 2011, were converted into selected vegetation indices (VIs) sensitive to conifer tree health in a Norway spruce–dominated forest in the High Tatra Mountains. The Vegetation Condition Index (VCI), Moisture Stress Index (MSI), Normalised Difference Moisture Index (NDMI), Normalised Difference Vegetation Index (NDVI), Disturbance Index (DI) and Changed Disturbance Index (DI´) were calculated separately for every year, and the methodology of vegetation index differencing was applied to multiple two-year time periods (2005–2006, 2006–2007, 2007–2008, 2008–2009 and 2010–2011), thus producing the Changed Vegetation Index (ΔVI). A set of thresholds was established on ΔVI to classify disturbed and undisturbed forest due to BBOs; the sensitivity of different VIs to identify BBO was equally evaluated. The highest accuracies of classifications were reached in 2007 and 2011 (kappa index of agreement >70% and >40%, respectively), which were characterised by an epidemic phase of a BBO. All selected VIs were highly sensitive to BBOs, except for NDVI. The stable threshold value for change detection is not widely applicable to detect past forest disturbances caused by bark beetles, however. Finally, for further research of the epidemic phases of BBOs, we recommend the utilisation of the vegetation indices VCI, MSI and NDMI to detect BBOs because of their simplicity and easy interpretability}, keywords = {}, pubstate = {published}, tppubtype = {article} } Automatic identification of forest patches disturbed by the spruce bark beetle Ips typographus L. is crucial to reveal the rules of following bark beetle outbreaks on the landscape scale. Landsat imagery provides free resources to outline past and present gradations of bark beetle outbreaks (BBOs). The objective of this study is to identify the most sensitive vegetation index through different method of vegetation index differencing to identify past and actual bark beetle outbreaks. Six Landsat Thematic Mapper (TM) images, from 2005–2009 and 2011, were converted into selected vegetation indices (VIs) sensitive to conifer tree health in a Norway spruce–dominated forest in the High Tatra Mountains. The Vegetation Condition Index (VCI), Moisture Stress Index (MSI), Normalised Difference Moisture Index (NDMI), Normalised Difference Vegetation Index (NDVI), Disturbance Index (DI) and Changed Disturbance Index (DI´) were calculated separately for every year, and the methodology of vegetation index differencing was applied to multiple two-year time periods (2005–2006, 2006–2007, 2007–2008, 2008–2009 and 2010–2011), thus producing the Changed Vegetation Index (ΔVI). A set of thresholds was established on ΔVI to classify disturbed and undisturbed forest due to BBOs; the sensitivity of different VIs to identify BBO was equally evaluated. The highest accuracies of classifications were reached in 2007 and 2011 (kappa index of agreement >70% and >40%, respectively), which were characterised by an epidemic phase of a BBO. All selected VIs were highly sensitive to BBOs, except for NDVI. The stable threshold value for change detection is not widely applicable to detect past forest disturbances caused by bark beetles, however. Finally, for further research of the epidemic phases of BBOs, we recommend the utilisation of the vegetation indices VCI, MSI and NDMI to detect BBOs because of their simplicity and easy interpretability |
 | Ježík, M; Blaženec, M; Letts, M G; Ditmarová, Ľ; Sitková, Z; Střelcová, K Assessing seasonal drought stress response in Norway spruce (Picea abies (L.) Karst.) by monitoring stem circumference and sap flow Journal Article Ecohydrology, 8 (3), pp. 378–386, 2015. @article{M.2015b, title = {Assessing seasonal drought stress response in Norway spruce (\textit{Picea abies} (L.) Karst.) by monitoring stem circumference and sap flow}, author = {M. Ježík and M. Blaženec and M.G. Letts and Ľ. Ditmarová and Z. Sitková and K. Střelcová}, url = {http://onlinelibrary.wiley.com/doi/10.1002/eco.1536/full}, year = {2015}, date = {2015-04-01}, journal = {Ecohydrology}, volume = {8}, number = {3}, pages = {378–386}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
![Hodnotenie zdravotného stavu smreka vo vzťahu smreka k náletu podkôrneho hmyzu a k odumieraniu lesa [Evaluation of Norway spruce helath status in relationships with bark beetle outbreak and forest dying]](https://ife.sk/wp-content/uploads/2016/10/IFE_blazenec_02.png) | Jakuš, R; Cudlín, P; Slivinský, J; Mezei, P; Majdák, A; Blaženec, M Ústav ekológie lesa, Slovenská akadémia vied, Zvolen, 2015, ISBN: 978-80-89408-22-1. @book{Jakuš2015, title = {Hodnotenie zdravotného stavu smreka vo vzťahu smreka k náletu podkôrneho hmyzu a k odumieraniu lesa [Evaluation of Norway spruce helath status in relationships with bark beetle outbreak and forest dying]}, author = {R. Jakuš and P. Cudlín and J. Slivinský and P. Mezei and A. Majdák and M. Blaženec}, url = {https://www.researchgate.net/publication/280014410_Hodnotenie_zdravotneho_stavu_smreka_vo_vztahu_k_naletu_podkorneho_hmyzu_a_k_odumieraniu_lesa}, isbn = {978-80-89408-22-1}, year = {2015}, date = {2015-01-01}, booktitle = {Prognosticko-informačné systémy pre zvýšenie efektívnosti manažmentu lesa}, publisher = {Ústav ekológie lesa, Slovenská akadémia vied}, address = {Zvolen}, keywords = {}, pubstate = {published}, tppubtype = {book} } |
![Princípy ochrany dospelých smrekových porastov pred podkôrnym hmyzom [Conservation principles of mature Norway spruce trees attacked by bark beetles]](https://ife.sk/wp-content/uploads/2016/10/IFE_blazenec_03.png) | Jakuš, R; Blaženec, M; Gurtsev, A I; Holuša, J; Hroššo, B; Křenová, Z; Longauerová, V; Lukášová, K; Majdák, A; Mezei, P; Slivinský, J Ústav ekológie lesa, Slovenská akadémia vied, Zvolen, 2015, ISBN: 978-80-89408-21-4. @book{Jakuš2015b, title = {Princípy ochrany dospelých smrekových porastov pred podkôrnym hmyzom [Conservation principles of mature Norway spruce trees attacked by bark beetles]}, author = {R. Jakuš and M. Blaženec and A.I. Gurtsev and J. Holuša and B. Hroššo and Z. Křenová and V. Longauerová and K. Lukášová and A. Majdák and P. Mezei and J. Slivinský}, editor = {R. Jakuš and M. Blaženec}, url = {https://www.researchgate.net/publication/280883448_Principy_ochrany_dospelych_smrekovych_porastov_pred_podkornym_hmyzom}, isbn = {978-80-89408-21-4}, year = {2015}, date = {2015-01-01}, booktitle = {Prognosticko-informačné systémy pre zvýšenie efektívnosti manažmentu lesa}, publisher = {Ústav ekológie lesa, Slovenská akadémia vied}, address = {Zvolen}, keywords = {}, pubstate = {published}, tppubtype = {book} } |
2014 |
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 | Mezei, P; Grodzki, W; Blaženec, M; Škvarenina, J; Brandýsová, V; Jakuš, R Host and site factors affecting tree mortality caused by the spruce bark beetle (Ips typographus) in mountainous conditions Journal Article Forest Ecology and Management, 331 , pp. 196–207, 2014. @article{P.2014b, title = {Host and site factors affecting tree mortality caused by the spruce bark beetle (\textit{Ips typographus}) in mountainous conditions}, author = {P. Mezei and W. Grodzki and M. Blaženec and J. Škvarenina and V. Brandýsová and R. Jakuš}, url = {http://www.sciencedirect.com/science/article/pii/S0378112714004691}, year = {2014}, date = {2014-11-01}, journal = {Forest Ecology and Management}, volume = {331}, pages = {196–207}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Binyameen, M; Jankuvová, J; Blaženec, M; Jakuš, R; Song, L; Schlyter, F; Andersson, M N Co-localization of insect olfactory sensory cells improves the discrimination of closely separated odour sources Journal Article Functional Ecology, 28 (5), pp. 1216–1223, 2014. @article{M.2014, title = {Co-localization of insect olfactory sensory cells improves the discrimination of closely separated odour sources}, author = {M. Binyameen and J. Jankuvová and M. Blaženec and R. Jakuš and L. Song and F. Schlyter and M.N. Andersson}, url = {http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12252/abstract}, year = {2014}, date = {2014-03-03}, journal = {Functional Ecology}, volume = {28}, number = {5}, pages = {1216–1223}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Mezei, P; Grodzki, W; Blaženec, M; Jakuš, R Factors influencing the wind-bark beetles’ disturbance system in the course of an Ips typographus outbreak in the Tatra Mountains Journal Article Forest Ecology and Management, 312 , pp. 67–77, 2014. @article{P.2014b, title = {Factors influencing the wind-bark beetles’ disturbance system in the course of an \textit{Ips typographus} outbreak in the Tatra Mountains}, author = {P. Mezei and W. Grodzki and M. Blaženec and R. Jakuš}, url = {http://www.sciencedirect.com/science/article/pii/S0378112713006877}, year = {2014}, date = {2014-01-01}, journal = {Forest Ecology and Management}, volume = {312}, pages = {67–77}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Sedmák, R; Sedmáková, D; Bošeľa, M; Marušák, R; Ježík, M; Murga, V; Blaženec, M Age estimation of Norway spruce using incomplete increment cores: testing new and improved methods Journal Article Dendrochronologia, 32 (4), pp. 327–335, 2014. @article{R.2014b, title = {Age estimation of Norway spruce using incomplete increment cores: testing new and improved methods}, author = {R. Sedmák and D. Sedmáková and M. Bošeľa and R. Marušák and M. Ježík and V. Murga and M. Blaženec}, url = {http://www.sciencedirect.com/science/article/pii/S1125786514000599}, year = {2014}, date = {2014-01-01}, journal = {Dendrochronologia}, volume = {32}, number = {4}, pages = {327–335}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2012 |
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 | Mezei, P; Jakuš, R; Blaženec, M; Belánová, S; Šmídt, J The relationship between potential solar radiation and spruce bark beetle catches in pheromone traps Journal Article Annals of Forest Research, 55 (2), pp. 243-252, 2012, ISSN: 18448135. @article{Mezei2012, title = {The relationship between potential solar radiation and spruce bark beetle catches in pheromone traps}, author = {P. Mezei and R. Jakuš and M. Blaženec and S. Belánová and J. Šmídt}, issn = {18448135}, year = {2012}, date = {2012-01-01}, journal = {Annals of Forest Research}, volume = {55}, number = {2}, pages = {243-252}, abstract = {We analysed the relationship between the amount of potential solar radiation and spruce bark beetle Ips typographus(L.) catches in pheromone traps in an unmanaged nature reserve in the Carpathians (middle Slovakia region), from 2006 through 2009. This relationship was analysed under outbreak conditions. The number of traps varied in different years from 70 to 92. The traps were installed in spruce-forest-dominated stands affected by a windstorm in 2004. A GPS device was used to mark the position of the pheromone traps. The potential solar radiation was calculated with GIS tools for three different time periods in each year: with entire year, for main flight season of the spruce bark beetle and the spring swarming period. The relationship between the amount of potential solar radiation and the spruce bark beetle catches was statistically significant for each year and each time period except for the spring swarming in 2007, when the pheromone traps were not set up on time.}, keywords = {}, pubstate = {published}, tppubtype = {article} } We analysed the relationship between the amount of potential solar radiation and spruce bark beetle Ips typographus(L.) catches in pheromone traps in an unmanaged nature reserve in the Carpathians (middle Slovakia region), from 2006 through 2009. This relationship was analysed under outbreak conditions. The number of traps varied in different years from 70 to 92. The traps were installed in spruce-forest-dominated stands affected by a windstorm in 2004. A GPS device was used to mark the position of the pheromone traps. The potential solar radiation was calculated with GIS tools for three different time periods in each year: with entire year, for main flight season of the spruce bark beetle and the spring swarming period. The relationship between the amount of potential solar radiation and the spruce bark beetle catches was statistically significant for each year and each time period except for the spring swarming in 2007, when the pheromone traps were not set up on time. |
2011 |
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 | Mezei, P; Jakuš, R; Blaženec, M; Belánová, S; Šmídt, J Population dynamics of spruce bark beetle in a nature reserve in relation to stand edges conditions Journal Article Folia Oecologica, 38 (1), pp. 73-79, 2011, ISSN: 13365266. @article{Mezei2011, title = {Population dynamics of spruce bark beetle in a nature reserve in relation to stand edges conditions}, author = {P. Mezei and R. Jakuš and M. Blaženec and S. Belánová and J. Šmídt}, issn = {13365266}, year = {2011}, date = {2011-01-01}, journal = {Folia Oecologica}, volume = {38}, number = {1}, pages = {73-79}, abstract = {Over the period 2006–2009 spruce bark beetle (Ips typographus [L.]) population was monitored after two windstorm events in a nature reserve in Slovak Ore Mountains. The monitoring was carried out with pheromone traps in three different forest edges: 1) edge of wind-felled trees area, 2) disturbed stand edge and 3) undisturbed stand edge. The one-way ANOVAconfirmed statistically significant differences among stand edges in each year and a post-hoc test was applied. In first two years after the primary disturbance the most attractive for spruce bark beetle was the edge of wind-felled trees area. After two years from the primary disturbance the most attractive became the disturbed stand edge. The undisturbed stand edge showed a similar attractivity for spruce bark beetles almost over the whole monitoring period.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Over the period 2006–2009 spruce bark beetle (Ips typographus [L.]) population was monitored after two windstorm events in a nature reserve in Slovak Ore Mountains. The monitoring was carried out with pheromone traps in three different forest edges: 1) edge of wind-felled trees area, 2) disturbed stand edge and 3) undisturbed stand edge. The one-way ANOVAconfirmed statistically significant differences among stand edges in each year and a post-hoc test was applied. In first two years after the primary disturbance the most attractive for spruce bark beetle was the edge of wind-felled trees area. After two years from the primary disturbance the most attractive became the disturbed stand edge. The undisturbed stand edge showed a similar attractivity for spruce bark beetles almost over the whole monitoring period. |
 | Ježík, M; Blaženec, M; Střelcová, K; Ditmarová, Ľ The impact of the 2003-2008 weather variability on intra-annual stem diameter changes of beech trees at a submontane site in central Slovakia Journal Article Dendrochronologia, 29 , pp. 227-235, 2011. @article{Ježík2011, title = {The impact of the 2003-2008 weather variability on intra-annual stem diameter changes of beech trees at a submontane site in central Slovakia}, author = {M. Ježík and M. Blaženec and K. Střelcová and Ľ. Ditmarová}, year = {2011}, date = {2011-01-01}, journal = {Dendrochronologia}, volume = {29}, pages = {227-235}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Marešová, J; Pipíška, M; Rozložník, M; Horník, M; Remenárová, L; Augustín, J Cobalt and strontium sorption my moss biosorbent: Modeling of single and binary metal systems Journal Article Desalination, 266 , pp. 134-141, 2011, ISSN: 0011-9164. @article{Marešová2011, title = {Cobalt and strontium sorption my moss biosorbent: Modeling of single and binary metal systems}, author = {J. Marešová and M. Pipíška and M. Rozložník and M. Horník and L. Remenárová and J. Augustín}, doi = {10.1016/j.desal.2010.08.014}, issn = {0011-9164}, year = {2011}, date = {2011-01-01}, journal = {Desalination}, volume = {266}, pages = {134-141}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2010 |
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 | Kmeť, J; Ditmarová, Ľ; Priwitzer, T; Kurjak, D; Baláž, P; Blaženec, M Physiological limits – a possible cause of spruce decline Journal Article Beskydy, 3 (1), pp. 55-64, 2010, ISSN: 1803-2451. @article{Kmeť2010, title = {Physiological limits – a possible cause of spruce decline}, author = {J. Kmeť and Ľ. Ditmarová and T. Priwitzer and D. Kurjak and P. Baláž and M. Blaženec}, issn = {1803-2451}, year = {2010}, date = {2010-01-01}, journal = {Beskydy}, volume = {3}, number = {1}, pages = {55-64}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Maresova, J; Hornik, M; Pipiska, M; Augustin, J Sorption of Co2+, Zn2+, Cd2+ and Cs+ ions by activated sludge of sewage treatment plant. Journal Article Nova Biotechnologica, 10 (1), pp. 53-61, 2010, ISSN: 1337-8783. @article{Maresova2010, title = {Sorption of Co^{2+}, Zn^{2+}, Cd^{2+} and Cs^{+} ions by activated sludge of sewage treatment plant.}, author = {J. Maresova and M. Hornik and M. Pipiska and J. Augustin}, issn = {1337-8783}, year = {2010}, date = {2010-01-01}, journal = {Nova Biotechnologica}, volume = {10}, number = {1}, pages = {53-61}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Remenárová, L; Popíška, M; Horník, M; Marešová, J; Augustín, J Cadmium and zinc uptake by dried activated sludge: equilibrium and experimental design study Journal Article Nova Biotechnologica, 10 (2), pp. 117-130, 2010, ISSN: 1337-8783. @article{Remenárová2010, title = {Cadmium and zinc uptake by dried activated sludge: equilibrium and experimental design study}, author = {L. Remenárová and M. Popíška and M. Horník and J. Marešová and J. Augustín}, issn = {1337-8783}, year = {2010}, date = {2010-01-01}, journal = {Nova Biotechnologica}, volume = {10}, number = {2}, pages = {117-130}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Muráňová, K; Marešová, J; Horník, M; Augustín, J Cadmium sorption by dried plant biomass - reversibility studies Journal Article Nova Biotechnologica, 10 (2), pp. 157-165, 2010, ISSN: 1337-8783. @article{Muráňová2010, title = {Cadmium sorption by dried plant biomass - reversibility studies}, author = {K. Muráňová and J. Marešová and M. Horník and J. Augustín}, issn = {1337-8783}, year = {2010}, date = {2010-01-01}, journal = {Nova Biotechnologica}, volume = {10}, number = {2}, pages = {157-165}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Guldanová, J; Horník, M; Marešová, J; Pipíška, M; Augustín, J Bioaccumulation and distribution of 137Cs in tobacco cultivated under hydroponic conditions Journal Article Nova Biotechnologica, 10 (2), pp. 95-106, 2010, ISSN: 1337-8783. @article{Guldanová2010, title = {Bioaccumulation and distribution of ^{137}Cs in tobacco cultivated under hydroponic conditions}, author = {J. Guldanová and M. Horník and J. Marešová and M. Pipíška and J. Augustín}, issn = {1337-8783}, year = {2010}, date = {2010-01-01}, journal = {Nova Biotechnologica}, volume = {10}, number = {2}, pages = {95-106}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2009 |
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 | Marešová, J; Horník, M; Pipíška, M; Augustín, J Zinc uptake and distribution in ivy (Hedera helix L.) leaves Journal Article Nova Biotechnologica, 9 (1), pp. 73-82, 2009. @article{Marešová2009, title = {Zinc uptake and distribution in ivy (\textit{Hedera helix} L.) leaves}, author = {J. Marešová and M. Horník and M. Pipíška and J. Augustín}, year = {2009}, date = {2009-01-01}, journal = {Nova Biotechnologica}, volume = {9}, number = {1}, pages = {73-82}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Horník, M; Guldanová, J; Pipíška, M; Marešová, J; Augustín, J Effect of chelating agents on phytoxicity and bioaccumulation of heavy metals in vascular plants Journal Article Nova Biotechnologica, 9 (3), pp. 271-277, 2009. @article{Horník2009, title = {Effect of chelating agents on phytoxicity and bioaccumulation of heavy metals in vascular plants}, author = {M. Horník and J. Guldanová and M. Pipíška and J. Marešová and J. Augustín}, year = {2009}, date = {2009-01-01}, journal = {Nova Biotechnologica}, volume = {9}, number = {3}, pages = {271-277}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Marešová, J; Horník, M; Pipíška, M; Augustín, J Influence of anionic surfactants on Zn2+ and Sr2+ uptake by ivy (Hedera helix L.) leaves. Journal Article Nova Biotechnologica, 9 (3), pp. 333-339, 2009. @article{Marešová2009b, title = {Influence of anionic surfactants on Zn^{2+} and Sr^{2+} uptake by ivy (\textit{Hedera helix} L.) leaves.}, author = {J. Marešová and M. Horník and M. Pipíška and J. Augustín}, year = {2009}, date = {2009-01-01}, journal = {Nova Biotechnologica}, volume = {9}, number = {3}, pages = {333-339}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2008 |
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 | Pipíška, M; Horník, M; Sekáčová, J; Augustín, J; Lesný, J Influence of complexing ligands and mineral nutrients on zinc foliar uptake and transloction in vascular plants Journal Article Cereal Research Communications,, 36 , pp. 415-418, 2008. @article{Pipíška2008, title = {Influence of complexing ligands and mineral nutrients on zinc foliar uptake and transloction in vascular plants}, author = {M. Pipíška and M. Horník and J. Sekáčová and J. Augustín and J. Lesný}, year = {2008}, date = {2008-01-01}, journal = {Cereal Research Communications,}, volume = {36}, pages = {415-418}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
 | Horník, M; Pipíška, M; Vrtoch, L; Sekáčová, J; Augustín, J; Lesný, J Influence of complexing ligands on Zn uptake and translocation in tobacco and celery plants Journal Article Acta Agronomica Ovariensis, 50 , pp. 65-71, 2008. @article{Horník2008, title = {Influence of complexing ligands on Zn uptake and translocation in tobacco and celery plants}, author = {M. Horník and M. Pipíška and L. Vrtoch and J. Sekáčová and J. Augustín and J. Lesný}, year = {2008}, date = {2008-01-01}, journal = {Acta Agronomica Ovariensis}, volume = {50}, pages = {65-71}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2007 |
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 | Horník, M; Pipíška, M; Sekáčová, J; Augustín, J Determination of long distance transport of Cs+, Co2+ and Zn2+ ions in vascular plants by autoradiography and gamma-spectrometry. Journal Article Nova Biotechnologica, 7 (1), pp. 33-40, 2007, ISBN: 978-80-89220-89-2. @article{Horník2007, title = {Determination of long distance transport of Cs^{+}, Co^{2+} and Zn^{2+} ions in vascular plants by autoradiography and gamma-spectrometry.}, author = {M. Horník and M. Pipíška and J. Sekáčová and J. Augustín}, isbn = {978-80-89220-89-2}, year = {2007}, date = {2007-01-01}, journal = {Nova Biotechnologica}, volume = {7}, number = {1}, pages = {33-40}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2006 |
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 | Barátová, Z; Sekáčová, J; Horník, M; Pipíška, M; Augustín, J Bioakumulácia 137Cs a 60Co horčicou bielou Sinapis alba L. a zelerom voňavým Apium graveolens L. Journal Article Nova Biotechnologica, 6 (1), pp. 7-18, 2006, ISSN: 80-89220-50-9. @article{Barátová2006, title = {Bioakumulácia ^{137}Cs a ^{60}Co horčicou bielou \textit{Sinapis alba} L. a zelerom voňavým \textit{Apium graveolens} L.}, author = {Z. Barátová and J. Sekáčová and M. Horník and M. Pipíška and J. Augustín}, issn = {80-89220-50-9}, year = {2006}, date = {2006-01-01}, journal = {Nova Biotechnologica}, volume = {6}, number = {1}, pages = {7-18}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2023 |
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| Can seedlings of Norway spruce (Picea abies L. H. Karst.) populations withstand changed climate conditions? Journal Article Photosynthetica, 61 (3), pp. 328–341, 2023, ISSN: 1573-9058. |
| Forests, 14 (10), pp. 2074, 2023, ISSN: 1999-4907. |
| Norway spruce susceptibility to bark beetles is associated with increased canopy surface temperature in a year prior disturbance Journal Article Forest Ecology and Management, 547 , pp. 121400, 2023, ISSN: 0378-1127. |
| Field effects of oxygenated monoterpenes and estragole combined with pheromone on attraction of Ips typographus and its natural enemies Journal Article Frontiers in Forests and Global Change, 6 , 2023, ISSN: 2624-893X. |
| Detection of susceptible Norway spruce to bark beetle attack using PlanetScope multispectral imagery Journal Article Frontiers in Forests and Global Change, 6 , 2023, ISSN: 2624-893X. |
| Central European Forestry Journal, 69 (4), pp. 214–223, 2023, ISSN: 2454-0358. |
2022 |
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| Contrasting Norway spruce disturbance dynamics in managed forests and strict forest reserves in Slovakia Journal Article Forestry, 96 (3), pp. 387–398, 2022, ISSN: 1464-3626. |
2021 |
|
| Determination of differences in temperature regimes on healthy and bark-beetle colonised spruce trees using a handheld thermal camera Journal Article iFOREST, 14 , pp. 203-211, 2021, ISSN: 1971-7458. |
Improvement of Ips typographus catches in pheromone trap barriers by altering of sex assigned pheromone blends Journal Article Folia Oecologica, 48 (1), pp. 25-34, 2021. | |
2020 |
|
| Drivers of Spruce Bark Beetle (Ips typographus) Infestations on Downed Trees after Severe Windthrow Journal Article Forests, 11 , 2020, ISSN: 1999-4907. |
| The short-term effect of sudden gap creation on tree temperature and volatile composition profiles in a Norway spruce stand Journal Article Trees-Structure and Function, 34 (6), pp. 1397–1409, 2020, ISSN: 0931-1890. |
| A bark beetle infestation predictive model based on satellite data in the frame of decision support system TANABBO Journal Article iFOREST, 13 (3), pp. 215-223, 2020, ISSN: 1971-7458. |
2019 |
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| Potential Solar Radiation as a Driver for Bark Beetle Infestation on a Landscape Scale Journal Article Forests, 10 (7), 2019, ISSN: 1999-4907. |
| Dendrochronologia, 54 , pp. 67-48, 2019, ISSN: 1125-7865. |
| Forest Ecology and Management, 432 , pp. 489-500, 2019, ISSN: 0378-1127. |
2017 |
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| Influence of different forest protection strategies on spruce tree mortality during a bark beetle outbreak Journal Article Annals of Forest Science, 74 , 2017, ISSN: 1297-966X. |
| Interactions between windthrow, bark beetles and forest management in the Tatra national parks Journal Article Forest Ecology and Management, 391 , pp. 349-361, 2017, ISSN: 03781127. |
| Agricultural and Forest Meteorology, 242 , pp. 85-95, 2017. |
| Simulating bark beetle population dynamics in response to windthrow events Journal Article Ecological Complexity, 32 , pp. 21-30, 2017, ISSN: 1476-945X. |
| TANABBO II model pro hodnocení rizika napadení lesních porostů lýkožroutem smrkovým Ips typographus (L.) [Coleoptera: Curculionidae] Book 1/2017, Výzkumný ústav lesního hospodářství a myslivosti, 2017. |
2016 |
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| Integration of Heterogeneous Data in the Support of the Forest Protection: Structural Concept Journal Article Lecture Notes in Geoinformation and Cartography, pp. 387-405, 2016, ISSN: 1863-2246. |
| Cross-dating tree-ring series of living European beech by isochronic weather records Journal Article Geochronometria, 43 (1), pp. 48-58, 2016, ISSN: 1897-1695. |
| The response of intra-annual stem circumference increase of young European beech provenances to 2012-2014 weather variability Journal Article i-Forest, 9 (6), pp. 960-969, 2016, ISSN: 1971-7458. |
2015 |
|
| Journal of Chemical Ecology, 41 (7), pp. 678-688, 2015. |
| Applicability of a vegetation indices-based method to map bark beetle outbreaks in the High Tatra Mountains Journal Article Annals of Forest Research, 58 (2), pp. 295-310, 2015. |
| Assessing seasonal drought stress response in Norway spruce (Picea abies (L.) Karst.) by monitoring stem circumference and sap flow Journal Article Ecohydrology, 8 (3), pp. 378–386, 2015. |
| Ústav ekológie lesa, Slovenská akadémia vied, Zvolen, 2015, ISBN: 978-80-89408-22-1. |
| Ústav ekológie lesa, Slovenská akadémia vied, Zvolen, 2015, ISBN: 978-80-89408-21-4. |
2014 |
|
| Host and site factors affecting tree mortality caused by the spruce bark beetle (Ips typographus) in mountainous conditions Journal Article Forest Ecology and Management, 331 , pp. 196–207, 2014. |
| Co-localization of insect olfactory sensory cells improves the discrimination of closely separated odour sources Journal Article Functional Ecology, 28 (5), pp. 1216–1223, 2014. |
| Factors influencing the wind-bark beetles’ disturbance system in the course of an Ips typographus outbreak in the Tatra Mountains Journal Article Forest Ecology and Management, 312 , pp. 67–77, 2014. |
| Age estimation of Norway spruce using incomplete increment cores: testing new and improved methods Journal Article Dendrochronologia, 32 (4), pp. 327–335, 2014. |
2012 |
|
| The relationship between potential solar radiation and spruce bark beetle catches in pheromone traps Journal Article Annals of Forest Research, 55 (2), pp. 243-252, 2012, ISSN: 18448135. |
2011 |
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| Population dynamics of spruce bark beetle in a nature reserve in relation to stand edges conditions Journal Article Folia Oecologica, 38 (1), pp. 73-79, 2011, ISSN: 13365266. |
| The impact of the 2003-2008 weather variability on intra-annual stem diameter changes of beech trees at a submontane site in central Slovakia Journal Article Dendrochronologia, 29 , pp. 227-235, 2011. |
| Cobalt and strontium sorption my moss biosorbent: Modeling of single and binary metal systems Journal Article Desalination, 266 , pp. 134-141, 2011, ISSN: 0011-9164. |
2010 |
|
| Physiological limits – a possible cause of spruce decline Journal Article Beskydy, 3 (1), pp. 55-64, 2010, ISSN: 1803-2451. |
| Sorption of Co2+, Zn2+, Cd2+ and Cs+ ions by activated sludge of sewage treatment plant. Journal Article Nova Biotechnologica, 10 (1), pp. 53-61, 2010, ISSN: 1337-8783. |
| Cadmium and zinc uptake by dried activated sludge: equilibrium and experimental design study Journal Article Nova Biotechnologica, 10 (2), pp. 117-130, 2010, ISSN: 1337-8783. |
| Cadmium sorption by dried plant biomass - reversibility studies Journal Article Nova Biotechnologica, 10 (2), pp. 157-165, 2010, ISSN: 1337-8783. |
| Bioaccumulation and distribution of 137Cs in tobacco cultivated under hydroponic conditions Journal Article Nova Biotechnologica, 10 (2), pp. 95-106, 2010, ISSN: 1337-8783. |
2009 |
|
| Zinc uptake and distribution in ivy (Hedera helix L.) leaves Journal Article Nova Biotechnologica, 9 (1), pp. 73-82, 2009. |
| Effect of chelating agents on phytoxicity and bioaccumulation of heavy metals in vascular plants Journal Article Nova Biotechnologica, 9 (3), pp. 271-277, 2009. |
| Influence of anionic surfactants on Zn2+ and Sr2+ uptake by ivy (Hedera helix L.) leaves. Journal Article Nova Biotechnologica, 9 (3), pp. 333-339, 2009. |
2008 |
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| Influence of complexing ligands and mineral nutrients on zinc foliar uptake and transloction in vascular plants Journal Article Cereal Research Communications,, 36 , pp. 415-418, 2008. |
| Influence of complexing ligands on Zn uptake and translocation in tobacco and celery plants Journal Article Acta Agronomica Ovariensis, 50 , pp. 65-71, 2008. |
2007 |
|
| Determination of long distance transport of Cs+, Co2+ and Zn2+ ions in vascular plants by autoradiography and gamma-spectrometry. Journal Article Nova Biotechnologica, 7 (1), pp. 33-40, 2007, ISBN: 978-80-89220-89-2. |
2006 |
|
| Bioakumulácia 137Cs a 60Co horčicou bielou Sinapis alba L. a zelerom voňavým Apium graveolens L. Journal Article Nova Biotechnologica, 6 (1), pp. 7-18, 2006, ISSN: 80-89220-50-9. |