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001-es BibID:BIBFORM115320
035-os BibID:(cikkazonosító)17379 (WoS)001086926800046 (Scopus)85174148655
Első szerző:Bede-Fazekas Ákos
Cím:Empirical delineation of the forest-steppe zone is supported by macroclimate / Ákos Bede-Fazekas, Péter Török, László Erdős
Dátum:2023
ISSN:2045-2322
Megjegyzések:Eurasian forest-steppes form a 9000-km-long transitional zone between temperate forests and steppes, featuring a complex mosaic of herbaceous and woody habitats. Due to its heterogeneity regarding climate, topography and vegetation, the forest-steppe zone has been divided into several regions. However, a continental-scale empirical delineation of the zone and its regions was missing until recently. Finally, a map has been proposed by Erdos et al. based on floristic composition, physiognomy, relief, and climate. By conducting predictive distribution modeling and hierarchical clustering, here we compared this expert delineation with the solely macroclimate-based predictions and clusters. By assessing the discrepancies, we located the areas where refinement of the delineation or the inclusion of non-macroclimatic predictors should be considered. Also, we identified the most important variables for predicting the existence of the Eurasian forest-steppe zone and its regions. The predicted probability of forest-steppe occurrence showed a very high agreement with the expert delineation. The previous delineation of the West Siberia region was confirmed by our results, while that of the Inner Asia region was the one least confirmed by the macroclimate-based model predictions. The appropriate delineation of the Southeast Europe region from the East Europe region should be refined by further research, and splitting the Far East region into a southern and northern subregion should also be considered. The main macroclimatic predictors of the potential distribution of the zone and its regions were potential evapotranspiration (zone and regions), annual mean temperature (regions), precipitation of driest quarter (regions) and precipitation of warmest quarter (zone), but the importance of climatic variables for prediction showed great variability among the fitted predictive distribution models.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 13 : 1 (2023), p. 1-13. -
További szerzők:Török Péter (1979-) (biológus-ökológus) Erdős László
Pályázati támogatás:KKP 144068
NKFIH
K 137573
OTKA
FK 134384
NKFIH
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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2.

001-es BibID:BIBFORM118071
035-os BibID:(cikkazonosító)e13228 (WoS)001145971600001 (Scopus)85182660730
Első szerző:Erdős László
Cím:Environmental filtering is the primary driver of community assembly in forest-grassland mosaics : a case study based on CSR strategies / László Erdős, Khanh Vu Ho, Ákos Bede-Fazekas, György Kröel-Dulay, Csaba Tölgyesi, Zoltán Bátori, Péter Török
Dátum:2024
ISSN:1100-9233 1654-1103
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Journal Of Vegetation Science. - 35 : 1 (2024), p. 1-10. -
További szerzők:Ho, Khanh Vu Bede-Fazekas Ákos Kröel-Dulay György (ökológus) Tölgyesi Csaba (1984-) (ökológus) Bátori Zoltán Török Péter (1979-) (biológus-ökológus)
Pályázati támogatás:FK 134384
Egyéb
K 124796
Egyéb
FK 142428
Egyéb
K 137573
Egyéb
KKP 144068
Egyéb
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM104966
035-os BibID:(cikkazonosító)108707 (WOS)000761380300002 (Scopus)85125132359
Első szerző:Erdős László
Cím:Species-based indicators to assess habitat degradation: Comparing the conceptual, methodological, and ecological relationships between hemeroby and naturalness values / László Erdős, Ákos Bede-Fazekas, Zoltán Bátori, Christian Berg, György Kröel-Dulay, Martin Magnes, Philipp Sengl, Csaba Tölgyesi, Péter Török, Jack Zinnen
Dátum:2022
ISSN:1470-160X 1872-7034
Megjegyzések:Naturalness and hemeroby indicator values are specialized species-based indicators used in Continental Europe that reflect plant species' affinity to degraded habitats. Despite their potential utility for basic and applied science, their similarities have gone unnoticed, and they have yet to be studied together. Here, we combine literature review and novel data analyses to ask 1) How are the naturalness and hemeroby indicator systems related, and 2) Do naturalness and hemeroby indicator values reflect similar functional patterns? To address these questions, we first reviewed the conceptual and methodological differences underlying naturalness and hemeroby values. We then directly compared the indicator values, including splitting species by origin. Next, to determine if the values capture similar ecological patterns, we related the indicator values to leaf traits, specifically leaf area, dry matter content, and specific leaf area. The main conceptual difference we identified was the differing reference states of the systems: naturalness values are value-laden and emphasize a lack of human influence, whereas hemeroby values are evaluative and apply the potential natural vegetation concept. Naturalness and hemeroby indicators have contrasting resolutions on opposite ends of the naturalness/degradation continuum, with naturalness placing greater emphasis on lightly impacted areas, whereas hemeroby divides degraded contexts more finely. Overall, naturalness and hemeroby values were inversely related. Naturalness and hemeroby values were strongly (rho < -0.6) correlated in direct comparisons. These correlations were curvilinear due to the scoring differences for non-native species: the systems had contrasting score variances (i.e., resolution) between non-native and native species. Leaf traits were generally "mirror images" between the systems; hemeroby was negatively associated with dry matter content and positively associated with specific leaf area, and vice versa for naturalness.. However, these relationships were weak (R-2 < 0.05). The weakness of these patterns implies that species' degradation tolerance may not be generalizable by simple leaf traits. Our work showed that hemeroby and naturalness are inverse, bilaterally consistent indicator systems. These indicator values, or improved versions of them, could be better utilized in the future for applied management and conservation.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Bioindication
Ecological indicator values
Habitat degradation
Hemerobiotic state
Naturalness continuum
Megjelenés:Ecological Indicators. - 136 (2022), p. 1-9. -
További szerzők:Bede-Fazekas Ákos Bátori Zoltán Berg, Christian Kröel-Dulay György (ökológus) Magnes, Martin Sengl, Philipp Tölgyesi Csaba (1984-) (ökológus) Török Péter (1979-) (biológus-ökológus) Zinnen, Jack
Pályázati támogatás:Eötvős Ösztöndíj-156951
Egyéb
NKFIH-K-119225
Egyéb
NKFIH-K-137573
Egyéb
Internet cím:Szerző által megadott URL
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Intézményi repozitóriumban (DEA) tárolt változat
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4.

001-es BibID:BIBFORM104965
035-os BibID:(WOS)000837584900001 (Scopus)85135586700
Első szerző:Erdős László
Cím:How climate, topography, soils, herbivores, and fire control forest-grassland coexistence in the Eurasian forest-steppe / László Erdős, Péter Török, Joseph W. Veldman, Zoltán Bátori, Ákos Bede-Fazekas, Martin Magnes, György Kröel-Dulay, Csaba Tölgyesi
Dátum:2022
ISSN:1464-7931 1469-185X
Megjegyzések:Recent advances in ecology and biogeography demonstrate the importance of fire and large herbivores - and challenge the primacy of climate - to our understanding of the distribution, stability, and antiquity of forests and grasslands. Among grassland ecologists, particularly those working in savannas of the seasonally dry tropics, an emerging fire-herbivore paradigm is generally accepted to explain grass dominance in climates and on soils that would otherwise permit development of closed-canopy forests. By contrast, adherents of the climate-soil paradigm, particularly foresters working in the humid tropics or temperate latitudes, tend to view fire and herbivores as disturbances, often human-caused, which damage forests and reset succession. Towards integration of these two paradigms, we developed a series of conceptual models to explain the existence of an extensive temperate forest-grassland mosaic that occurs within a 4.7 million km(2) belt spanning from central Europe through eastern Asia. The Eurasian forest-steppe is reminiscent of many regions globally where forests and grasslands occur side-by-side with stark boundaries. Our conceptual models illustrate that if mean climate was the only factor, forests should dominate in humid continental regions and grasslands should prevail in semi-arid regions, but that extensive mosaics would not occur. By contrast, conceptual models that also integrate climate variability, soils, topography, herbivores, and fire depict how these factors collectively expand suitable conditions for forests and grasslands, such that grasslands may occur in more humid regions and forests in more arid regions than predicted by mean climate alone. Furthermore, boundaries between forests and grasslands are reinforced by vegetation-fire, vegetation-herbivore, and vegetation-microclimate feedbacks, which limit tree establishment in grasslands and promote tree survival in forests. Such feedbacks suggest that forests and grasslands of the Eurasian forest-steppe are governed by ecological dynamics that are similar to those hypothesised to maintain boundaries between tropical forests and savannas. Unfortunately, the grasslands of the Eurasian forest-steppe are sometimes misinterpreted as deforested or otherwise degraded vegetation. In fact, the grasslands of this region provide valuable ecosystem services, support a high diversity of plants and animals, and offer critical habitat for endangered large herbivores. We suggest that a better understanding of the fundamental ecological controls that permit forest-grassland coexistence could help us prioritise conservation and restoration of the Eurasian forest-steppe for biodiversity, climate adaptation, and pastoral livelihoods. Currently, these goals are being undermined by tree-planting campaigns that view the open grasslands as opportunities for afforestation. Improved understanding of the interactive roles of climate variability, soils, topography, fire, and herbivores will help scientists and policymakers recognise the antiquity of the grasslands of the Eurasian forest-steppe.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Biological Reviews. - 97 : 6 (2022), p. 2195-2208. -
További szerzők:Török Péter (1979-) (biológus-ökológus) Veldman, Joseph W. Bátori Zoltán Bede-Fazekas Ákos Magnes, Martin Kröel-Dulay György (ökológus) Tölgyesi Csaba (1984-) (ökológus)
Pályázati támogatás:NKFIH-FK-134384
Egyéb
NKFIH-K-119225
Egyéb
NKFIH-K-137573
Egyéb
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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5.

001-es BibID:BIBFORM083745
035-os BibID:(cikkazonosító)236 (WoS)000524771100001 (Scopus)85082666345
Első szerző:Erdős László
Cím:Beyond the forest-grassland dichotomy : the gradient-like organization of habitats in forest-steppes / László Erdős, Péter Török, Katalin Szitár, Zoltán Bátori, Csaba Tölgyesi, Péter János Kiss, Ákos Bede-Fazekas, György Kröel-Dulay
Dátum:2020
ISSN:1664-462X
Megjegyzések:Featuring a transitional zone between closed forests and treeless steppes, forest-steppes cover vast areas, and have outstanding conservation importance. The components of this mosaic ecosystem can conveniently be classified into two basic types, forests and grasslands. However, this dichotomic classification may not fit reality as habitat organization can be much more complex. In this study, our aim was to find out if the main habitat types can be grouped into two distinct habitat categories (which would support the dichotomic description), or a different paradigm better fits this complex ecosystem. We selected six main habitats of sandy forest-steppes, and, using 176 relevés, we compared their vegetation based on species composition (NMDS ordination, number of common species of the studied habitats), relative ecological indicator values (mean indicators for temperature, soil moisture, and light availability), and functional species groups (life-form categories, geoelement types, and phytosociological preference groups). According to the species composition, we found a well-defined gradient, with the following habitat order: large forest patches, medium forest patches, small forest patches, north-facing edges, south-facing edges, and grasslands. A considerable number of species were shared among all habitats, while the number of species restricted to certain habitat types was also numerous, especially for north-facing edges. The total (i.e., pooled) number of species peaked near the middle of the gradient, in north-facing edges. The relative ecological indicator values and functional species groups showed mostly gradual changes from the large forest patches to the grasslands. Our results indicate that the widely used dichotomic categorization of forest-steppe habitats into forest and grassland patches is too simplistic, potentially resulting in a considerable loss of information. We suggest that forest-steppe vegetation better fits the gradient-based paradigm of landscape structure, which is able to reflect continuous variations.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Frontiers in Plant Science. - 11 (2020), p. 1-10. -
További szerzők:Török Péter (1979-) (biológus-ökológus) Szitár Katalin Bátori Zoltán Tölgyesi Csaba (1984-) (ökológus) Kiss Péter János Bede-Fazekas Ákos Kröel-Dulay György (ökológus)
Pályázati támogatás:OTKA PD 116114
OTKA
NKFIH K 119225
egyéb
NKFIH KH 129483
egyéb
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
DOI
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