Functional diversity of fish in estuaries at a global extent

Frontiers in Marine Science

François Guilhaumon¹  Sébastien Villéger²  Rita P Vasconcelos³ 

[1] IRD, UMR 5119, IRD-CNRS-IFREMER-UM2-UM1 ECOSYM;Laboratoire Ecologie des Systèmes Marins Côtiers (UMR5119 ECOSYM), CNRS, IRD, IFREMER;MARE - Marine and Environmental Sciences Centre;

关键词: beta-diversity;    functional group;    biodiversity loss;    predictive model;    Environmental drivers;   

DOI  :  10.3389/conf.fmars.2015.03.00017

来源: DOAJ

【 摘 要 】

Biodiversity is currently viewed as a framework encompassing multiple facets of the variety of life, including taxonomic and functional aspects. Species richness and composition of fish assemblages in estuaries is defined by global to local processes acting on community colonization. The present study further investigates how biodiversity of fish assemblages varies among estuaries globally, by simultaneously analysing taxonomic and functional richness and diversity of assemblages. A comprehensive worldwide database was compiled on the fish assemblage composition and environmental characteristics of estuaries. In addition, functional attributes of the fish species were characterized such as body size, habitat use and trophic ecology. We investigated the relationship between taxonomic and functional aspects of biodiversity, i.e. the match or mismatch between the two. We also explored how functional diversity of fish assemblages varied among estuaries globally and related to environmental features of estuaries, i.e. historic and contemporary, global and local constraints. The results are explored in the context of ecosystem functioning and resilience, and outcomes relevant to assist in prioritizing conservation efforts are highlighted.

【 授权许可】

Unknown