Találati lista | Tudóstér

001-es BibID:	BIBFORM136042
Első szerző:	Liu, Chang
Cím:	Climate and Land Cover Change Transform Functional Identity and Reduce Functional Diversity in European Grasslands / Chang Liu, Stef Haesen, Jürgen Dengler, Denys Vynokurov, Idoia Biurrun, Łukasz Kozub, Iwona Dembicz, Alireza Naqinezhad, Béla Tóthmérész, Dariia Borovyk, Franz Essl, Juan Antonio Campos, Nadiia Skobel, Péter Török, Robin J. Pakeman, Swantje Löbel, Koenraad Van Meerbeek
Dátum:	2026
ISSN:	1466-822X
Megjegyzések:	Aim European grasslands rank among the most species-rich ecosystems at small spatial scales, yet their biodiversity and functioning face significant threats from climate change and land-use intensification. Functional traits more effectively explain ecosystem functions (EFs) than species identity or diversity. This study examines how future climate and land cover changes will shape grassland functional composition, addressing gaps in trait-environment relationships and large-scale functional predictions. Location Europe. Time Period 1971?2000 and 2081?2100. Major Taxa Studied 4406 distinct grassland plant species. Methods We used Boosted Regression Trees to model trait-environment relationships based on vegetation plot data from sPlotOpen, GrassPlot, and the Nordic-Baltic Grassland Vegetation Database (NBGVD). We mapped the 17 trait community-weighted means (CWMs) and three functional richness (FRic) metrics under historical conditions and two future climate scenarios to assess temporal and spatial changes in grassland functional composition. Results The trait?environment relationships are highly trait-dependent: structural and size-related traits such as plant height, leaf area and seed number were consistently well-predicted, whereas other traits were less well predicted. Mean annual temperature emerged as the strongest predictor of grassland functional composition. Climate and land cover change were predicted to drive significant spatial shifts in trait CWMs and FRic. Specifically, leaf area was predicted to decline in the Baltic Sea region and Pannonian Basin, while plant height was expected to increase across Europe. Seed number was predicted to rise at higher latitudes and in mountainous regions. Moreover, FRic was expected to decrease in temperate grasslands but increase at high latitudes and mountainous regions. Main Conclusions Our findings reveal distinct spatial patterns in functional shifts, reflecting plant adaptation to future environmental conditions. The increase in FRic at high latitudes and mountainous regions also signals ecosystem transitions that may pose additional threats to further complicate grassland conservation efforts.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk climate change community-weighted mean functional richness functional traits grassland leaf area plant height seed number
Megjelenés:	Global Ecology And Biogeography. - 35 (2026), p. 1-16. -
További szerzők:	Haesen, Stef Dengler, Jürgen Vynokurov, Denys Biurrun, Idoia Kozub, Lukasz Dembicz, Iwona Naqinezhad, Alireza (botanikus) Tóthmérész Béla (1960-) (ökológus) Borovyk, Dariia Essl, Franz Campos, Juan Antonio Skobel, Nadiia Török Péter (1979-) (biológus-ökológus) Pakeman, Robin Löbel, Swantje van Meerbeek, Koenraad
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon:

001-es BibID:	BIBFORM104983
035-os BibID:	(WOS)000666878600009 (Scopus)85109201038
Első szerző:	Zhang, Jinghui
Cím:	Scale dependence of species-area relationships is widespread but generally weak in Palaearctic grasslands / Jinghui Zhang, François Gillet, Sándor Bartha, Juha Mikael Alatalo, Idoia Biurrun, Iwona Dembicz, John-Arvid Grytnes, Renaud Jaunatre, Remigiusz Pielech, Koenraad Van Meerbeek, Denys Vynokurov, Stefan Widmer, Alla Aleksanyan, Kuber Prasad Bhatta, Juan Antonio Campos, Patryk Czortek, Jiri Dolezal, Franz Essl, Itziar García-Mijangos, Riccardo Guarino, Behlül Güler, Michal Hájek, Anna Kuzemko, Frank Yonghong Li, Swantje Löbel, Halime Moradi, Alireza Naqinezhad, Vasco Silva, Eva Šmerdová, Judit Sonkoly, Simon Stifter, Amir Talebi, Péter Török, Hannah White, Jianshuang Wu, Jürgen Dengler
Dátum:	2021
ISSN:	1100-9233 1654-1103
Megjegyzések:	Questions Species-area relationships (SARs) are fundamental for understanding biodiversity patterns and are generally well described by a power law with a constant exponent z. However, z-values sometimes vary across spatial scales. We asked whether there is a general scale dependence of z-values at fine spatial grains and which potential drivers influence it. Location Palaearctic biogeographic realm. Methods We used 6,696 nested-plot series of vascular plants, bryophytes and lichens from the GrassPlot database with two or more grain sizes, ranging from 0.0001 m(2) to 1,024 m(2) and covering diverse open habitats. The plots were recorded with two widespread sampling approaches (rooted presence = species "rooting" inside the plot; shoot presence = species with aerial parts inside). Using Generalized Additive Models, we tested for scale dependence of z-values by evaluating if the z-values differ with gran size and tested for differences between the sampling approaches. The response shapes of z-values to grain were classified by fitting Generalized Linear Models with logit link to each series. We tested whether the grain size where the maximum z-value occurred is driven by taxonomic group, biogeographic or ecological variables. Results For rooted presence, we found a strong monotonous increase of z-values with grain sizes for all grain sizes below 1 m(2). For shoot presence, the scale dependence was much weaker, with hump-shaped curves prevailing. Among the environmental variables studied, latitude, vegetation type, naturalness and land use had strong effects, with z-values of secondary peaking at smaller grain sizes. Conclusions The overall weak scale dependence of z-values underlines that the power function generally is appropriate to describe SARs within the studied grain sizes in continuous open vegetation, if recorded with the shoot presence method. When clear peaks of z-values occur, this can be seen as an expression of granularity of species composition, partly driven by abiotic environment.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk beta diversity grassland GrassPlot Heterogeneity Palaearctic power law rooted presence scale dependence shoot presence species-area relationship vegetation z-value
Megjelenés:	Journal of Vegetation Science. - 32 : 3 (2021), p. 1-14. -
További szerzők:	Gillet, François Bartha Sándor Alatalo, Juha Mikael Biurrun, Idoia Dembicz, Iwona Grytnes, John-Arvid Jaunatre, Renaud Pielech, Remigiusz van Meerbeek, Koenraad Vynokurov, Denys Widmer, Stefan Aleksanyan, Alla Bhatta, Kuber Prasad Campos, Juan Antonio Czortek, Patryk Dolezal, Jiri Essl, Franz García-Mijangos, Itziar Guarino, Riccardo Güler, Behlül Hájek, Michal Kuzemko, Anna Li, Frank Yonghong Löbel, Swantje Moradi, Halime Naqinezhad, Alireza (botanikus) Silva, Vasco Šmerdová, Eva Sonkoly Judit (1989-) (biológus) Stifter, Simon Talebi, Amir Török Péter (1979-) (biológus-ökológus) White, Hannah J. Wu, Jianshuang Dengler, Jürgen
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: