This study reveals the substantial variation of non-native species richness in 1,054 drainage basins that cover more than 80 % of the world’s continental surface. Six global invasion hotspots were found where non-native species represent more than a quarter of the total number of species per basin.
see also:
Brosse, B., Beauchard, O., Blanchet, S., Dürr, H.H., Grenouillet, G., Hugueny, B., Lauzeral, C., Leprieur, F., Tedesco, P.A., Villeger, S., Oberdorff, T. (2013). Fish-SPRICH: a database of freshwater fish species richness throughout the World. Hydrobiologia 700: 343–349. (link).
with support provided by: BioFresh project
P. A. Tedesco, C. Jézéquel, T. Oberdorff
UMR "BOREA" CNRS 7208/IRD 207/MNHN/UPMC, DMPA
Biologie des Organismes et des Ecosystèmes Aquatiques
Muséum National d'Histoire Naturelle
43, rue Cuvier, 75231 Paris Cedex, France
The Fish-SPRICH database can be downloaded from the BioFresh data repository:
This work was supported by the EU BioFresh Project (7th Framework European Program, Contract No. 226874).