We need better understanding about functional diversity and vulnerability of tropical freshwater fishes
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- 作者：Jean R. S. Vitule ; Angelo A. Agostinho…
- 关键词：Conservation policy ; Extinction risk ; Functional traits ; Ecosystem services ; Megadiverse regions ; Multidimensional niche
- 刊名：Biodiversity and Conservation
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：26
- 期：3
- 页码：757-762
- 全文大小：365KB
- 刊物类别：Biomedical and Life Sciences
- 刊物主题：Biodiversity; Ecology; Conservation Biology/Ecology; Climate Change/Climate Change Impacts;
- 出版者：Springer Netherlands
- ISSN：1572-9710
- 卷排序：26
文摘
Here we extend a discussion initiated by Toussaint et al. (Sci Rep 6:22125, 2016) concerning the relationship between global patterns of freshwater fish functional diversity (FD) and its vulnerability to human impacts. Based on a set of morphological traits, they concluded that Neotropical freshwater fishes have highest FD, but low vulnerability given high levels of functional redundancy. This conclusion implies that conservation efforts for freshwater fishes should emphasize temperate regions. This perspective is risky, because Toussaint et al.’s study seriously underestimates the full scope of FD, including important ecosystem services provided by fishes in the tropics. We briefly discuss some additional and well-documented aspects of tropical freshwater fish FD and conclude that tropical fish FD is highly vulnerable.