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Decomposing functional β‐diversity reveals that low functional β‐diversity is driven by low functional turnover in E uropean fish assemblages
Author(s) -
Villéger Sébastien,
Grenouillet Gaël,
Brosse Sébastien
Publication year - 2013
Publication title -
global ecology and biogeography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.164
H-Index - 152
eISSN - 1466-8238
pISSN - 1466-822X
DOI - 10.1111/geb.12021
Subject(s) - nestedness , functional diversity , ecology , biodiversity , functional group , beta diversity , biology , diversity (politics) , taxonomic rank , fish <actinopterygii> , fishery , sociology , anthropology , chemistry , organic chemistry , taxon , polymer
Aim One of the main gaps in the assessment of biodiversity is the lack of a unified framework for measuring its taxonomic and functional facets and for unveiling the underlying patterns. Location E urope, 25 large river basins. Methods Here, we develop a decomposition of functional β‐diversity, i.e. the dissimilarity in functional composition between communities, into a functional turnover and a functional nestedness‐resultant component. Results We found that functional β‐diversity was lower than taxonomic β‐diversity. This difference was driven by a lower functional turnover compared with taxonomic turnover while the nestedness‐resultant component was similar for taxonomic and functional β‐diversity. Main conclusions Fish faunas with different species tend to share the same functional attributes. The framework presented in this paper will help to analyse biogeographical patterns as well as to measure the impact of human activities on the functional facets of biodiversity.