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From current distinctiveness to future homogenization of the world's freshwater fish faunas ArchiMer
Villeger, Sebastien; Blanchet, Simon; Beauchard, Olivier; Oberdorff, Thierry; Brosse, Sebastien.
AimAssessing the consequences of a future increase in non-native species introductions and native species extirpations on taxonomic similarity among fish faunas. LocationWorld-wide. MethodsWe designed 42 scenarios of future species introductions and extirpations to simulate future fish composition for 1054 river basins. Using these simulated future compositions, we computed the change in taxonomic similarity among pairs of fish faunas from historical to future situation at the river basin, biogeographic realm and world scales. ResultsAccording to all our scenarios, taxonomic similarity among fish faunas will strongly increase in the future at the three spatial scales considered. Fish faunas from the Southern Hemisphere, which are currently the less...
Tipo: Text Palavras-chave: Extirpation; Freshwater fish; Introduction; Non-native species; Taxonomic similarity; Taxonomic uniqueness.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00250/36174/73737.pdf
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A global database on freshwater fish species occurrence in drainage basins ArchiMer
Tedesco, Pablo A; Beauchard, Olivier; Bigorne, Remy; Blanchet, Simon; Buisson, Laetitia; Conti, Lorenza; Cornu, Jean-francois; Dias, Murilo S.; Grenouillet, Gael; Hugueny, Bernard; Jezequel, Celine; Leprieur, Fabien; Brosse, Sebastien; Oberdorff, Thierry.
A growing interest is devoted to global-scale approaches in ecology and evolution that examine patterns and determinants of species diversity and the threats resulting from global change. These analyses obviously require global datasets of species distribution. Freshwater systems house a disproportionately high fraction of the global fish diversity considering the small proportion of the earth's surface that they occupy, and are one of the most threatened habitats on Earth. Here we provide complete species lists for 3119 drainage basins covering more than 80% of the Earth surface using 14953 fish species inhabiting permanently or occasionally freshwater systems. The database results from an extensive survey of native and non-native freshwater fish species...
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Ano: 2017 URL: https://archimer.ifremer.fr/doc/00405/51634/74670.pdf
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