Toussaint A., Charpin N., Brosse S. & Villeger S. 2016
Mar 16, 2016 - Similarly, the Australian realm hosts a FD close to that of the Nearctic although it only hosts .... fish occurrences34 that contains 9,170 freshwater fish species out of the ca. ..... Centre of Scientific Research (CNRS, Contract No.
received: 19 October 2015 accepted: 05 February 2016 Published: 16 March 2016
Global functional diversity of freshwater fish is concentrated in the Neotropics while functional vulnerability is widespread A. Toussaint1, N. Charpin1, S. Brosse1,* & S. Villéger2,* Worldwide biodiversity assessments have mainly focused on species richness but little is known about the diversity of species roles, i.e. functional diversity, while this is a key facet to understanding the consequences of global changes on the ecosystem services to human societies. Here, we report the world pattern of functional diversity of freshwater fish using a database encompassing morphological characteristics of more than 9,000 species. The Neotropical realm hosts more than 75% of global functional diversity while other realms each host less than 25%. This discrepancy is mediated by high functional uniqueness in some diversified Neotropical fish orders. Surprisingly, functional diversity patterns were weakly related to functional vulnerability. In the Neotropics the loss of threatened species will cause a limited loss of functional diversity ( 0.99) whereas the FD of Afrotropical (SES = −2.46, P
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