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001-es BibID:BIBFORM066058
035-os BibID:(cikkazonosító)e0149662 (WOS)000371276100125 (Scopus)84960517363
Első szerző:Lengyel Szabolcs (biológus)
Cím:Species Richness Responses to Structural or Compositional Habitat Diversity between and within Grassland Patches: A Multi-Taxon Approach / Lengyel Szabolcs, Déri Eszter, Magura Tibor
Dátum:2016
ISSN:1932-6203
Megjegyzések:Habitat diversity (spatial heterogeneity within and between habitat patches in a landscape,HD) is often invoked as a driver of species diversity at small spatial scales. However, theeffect of HD on species richness (SR) of multiple taxa is not well understood. We quantifiedHD and SR in a wet-dry gradient of open grassland habitats in Hortobágy National Park (EHungary)and tested the effect of compositional and structural factors of HD on SR of floweringplants, orthopterans, true bugs, spiders, ground beetles and birds. Our dataset on 434grassland species (170 plants, 264 animals) showed that the wet-dry gradient (compositionalHD at the between-patch scale) was primarily related to SR in orthopterans, grounddwellingarthropods, and all animals combined. The patchiness, or plant association richness,of the vegetation (compositional HD at the within-patch scale) was related to SR ofvegetation-dwelling arthropods, whereas vegetation height (structural HD at the withinpatchscale) was related to SR of ground-dwelling arthropods and birds. Patch area wasrelated to SR only in birds, whereas management (grazing, mowing, none) was related toSR of plants and true bugs. All relationships between HD and SR were positive, indicatingincreasing SR with increasing HD. However, total SR was not related to HD because differenttaxa showed similar positive responses to different HD variables. Our findings, therefore,show that even though HD positively influences SR in a wide range of grassland taxa,each taxon responds to different compositional or structural measures of HD, resulting inthe lack of a consistent relationship between HD and SR when taxon responses are pooled.The idiosyncratic responses shown here exemplify the difficulties in detecting general HDSRrelationships over multiple taxa. Our results also suggest that management and restorationaimed specifically to sustain or increase the diversity of habitats are required to conservebiodiversity in complex landscapes.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Plos One. - 11 : 2 (2016), p. e0149662. -
További szerzők:Déri Eszter (1982-) Magura Tibor (1969-) (ökológus)
Pályázati támogatás:Bolyai János Kutatási Ösztöndíj
MTA
K-106133
OTKA
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