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Exploring species and site contributions to beta diversity in stream insect assemblages
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Exploring species and site contributions to beta diversity in stream insect assemblages
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Journal Article
Exploring species and site contributions to beta diversity in stream insect assemblages
2017
Overview
It was recently suggested that beta diversity can be partitioned into contributions of single sites to overall beta diversity (LCBD) or into contributions of individual species to overall beta diversity (SCBD). We explored the relationships of LCBD and SCBD to site and species characteristics, respectively, in stream insect assemblages. We found that LCBD was mostly explained by variation in species richness, with a negative relationship being detected. SCBD was strongly related to various species characteristics, such as occupancy, abundance, niche position and niche breadth, but was only weakly related to biological traits of species. In particular, occupancy and its quadratic terms showed a very strong unimodal relationship with SCBD, suggesting that intermediate species in terms of site occupancy contribute most to beta diversity. Our findings of unravelling the contributions of sites or species to overall beta diversity are of high importance to community ecology, conservation and bioassessment using stream insect assemblages, and may bear some overall generalities to be found in other organism groups.
Publisher
Springer Science + Business Media,Springer Berlin Heidelberg,Springer,Springer Nature B.V
Subject
