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001-es BibID:	BIBFORM123699
035-os BibID:	(Scopus)85197564399 (WOS)001267737900001
Első szerző:	Deák Balázs (biológus)
Cím:	Meso-scale environmental heterogeneity drives plant trait distributions in fragmented dry grasslands / Balázs Deák, Zoltán Botta-Dukát, Zoltán Rádai, Bence Kovács, Iva Apostolova, Zoltán Bátori, András Kelemen, Katalin Lukács, Réka Kiss, Salza Palpurina, Desislava Sopotlieva, Orsolya Valkó
Dátum:	2024
ISSN:	0048-9697
Megjegyzések:	Environmental heterogeneity shapes the patterns of resources and limiting factors and therefore can be an important driver of plant community composition through the selection of the most adaptive functional traits. In this study, we explored plant trait-environment relationships in environmentally heterogeneous microsite complexes at the meso-scale (few meters), and used ancient Bulgarian and Hungarian burial mounds covered by dry grasslands as a model habitat. We assessed within-site trait variability typical of certain microsites with different combinations of environmental parameters (mound slopes with different aspects, mound tops, and surrounding plain grasslands) using a dataset of 480 vegetation plots. For this we calculated community-weighted means (CWMs) and abundance models. We found that despite their small size, the vegetation on mounds was characterized by different sets of functional traits (higher canopy, higher level of clonality, and heavier seeds) compared to the plain grasslands. North-facing slopes with mild environmental conditions were characterized by perennial species with light seeds, short flowering period, and a high proportion of dwarf shrubs sharply contrasted from the plain grasslands and from the south-facing slopes and mound tops with harsh environmental conditions. Patterns predicted by CWMs and abundance models differed in the case of certain traits (perenniality, canopy height, and leaf dry matter content), suggesting that environmental factors do not necessarily affect trait optima directly, but influence them indirectly through correlating traits. Due to the large relative differences in environmental parameters, contrasts in trait composition among microsites were mostly consistent and independent from the macroclimate. Mounds with high environmental heterogeneity can considerably increase variability in plant functional traits and ecological strategies at the site and landscape levels. The large trait variation on topographically heterogeneous landscape features can increase community resilience against climate change or stochastic disturbances, which underlines their conservation importance.
Tárgyszavak:	Orvostudományok Egészségtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Abundance trait models Community-weighted mean Environmental filtering Kurgan Landscape feature Microsite
Megjelenés:	Science of the Total Environment. - 947 (2024), p. 1-12. -
További szerzők:	Botta-Dukát Zoltán Rádai Zoltán (1991-) (biológus) Kovács Bence Apostolova, Iva Bátori Zoltán Kelemen András (1986-) (biológus-ökológus) Lukács Katalin (1993-) (biológus) Kiss Réka (1990-) (biológus, ökológus) Palpurina, Salza Sopotlieva, Desislava Valkó Orsolya (1985-) (biológus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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