Global diversity patterns of freshwater fishes – potential victims of their own success

• DOI: 10.1111/ddi.12271
• Publication Date: 2014-10-16T02:44:30Z
• Authors: Patricia Pelayo‐V...; Cástor Guisande; Richard P. Vari; Ana Manjarrés‐Her...; Emilio García‐Ros...; Jacinto González‐...; Jürgen Heine; Luis González Vilas; Bernardo Patti; Enza María Quinci; Luz Fernanda Jiménez; Carlos Granado‐Lo...; Pablo A. Tedesco; Jorge M. Lobo
• Keywords: Jackknife resampling; Macroecology; Global biodiversity

Abstract Aim To examine the pattern and cumulative curve of descriptions freshwater fishes world‐wide, geographical biases in available information on that fauna, relationship between species richness rarity such fishes, as well to assess relative contributions different environmental factors these variables. Location Global. Methods ModestR was used summarize distribution fish using from data‐based records. The first‐order jackknife estimator estimate completeness data all terrestrial 1‐degree cells world‐wide. An α‐shape procedure build range maps capable providing relatively accurate values for each grid cell. We also examined explanatory capacity a high number variables multiple regressions Support Vector Machine. Results Cumulative description curves show remain be discovered. Completeness indicate only 199 one‐degree cells, mainly located eastern North America Europe, could considered having inventories. Range provide are positively significantly related those resulting estimator. is triangular, so species‐rich with higher proportion distributionally rare species. Species predicted by climatic and/or productivity but not. Main conclusions In general, tropical areas harbour narrowly distributed although comparatively species‐poor subtropical may contain Historical help explain faunistic composition latter areas; supposition supported low predictive values.