Human impacts on global freshwater fish biodiversity

doi:10.1126/science.abd3369

GSTDTAP > 气候变化

DOI	10.1126/science.abd3369
	Human impacts on global freshwater fish biodiversity
	Guohuan Su; Maxime Logez; Jun Xu; Shengli Tao; Sébastien Villéger; Sébastien Brosse
	2021-02-19
发表期刊	Science
出版年	2021
英文摘要	We are increasingly aware of human impacts on biodiversity across our planet, especially in terrestrial and marine systems. We know less about fresh waters, including large rivers. Su et al. looked across such systems globally, focusing on several key measures of fish biodiversity. They found that half of all river systems have been heavily affected by human activities, with only very large tropical river basins receiving the lowest levels of change. Fragmentation and non-native species have also led to the homogenization of rivers, with many now containing similar species and fewer specialized lineages. Science , this issue p. [835][1] Freshwater fish represent one-fourth of the world’s vertebrates and provide irreplaceable goods and services but are increasingly affected by human activities. A new index, Cumulative Change in Biodiversity Facets, revealed marked changes in biodiversity in >50% of the world’s rivers covering >40% of the world’s continental surface and >37% of the world’s river length, whereas <14% of the world’s surface and river length remain least impacted. Present-day rivers are more similar to each other and have more fish species with more diverse morphologies and longer evolutionary legacies. In temperate rivers, where the impact has been greatest, biodiversity changes were primarily due to river fragmentation and introduction of non-native species. [1]: /lookup/doi/10.1126/science.abd3369
领域	气候变化 ; 资源环境
URL	查看原文
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/315730
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Guohuan Su,Maxime Logez,Jun Xu,et al. Human impacts on global freshwater fish biodiversity[J]. Science,2021.
APA	Guohuan Su,Maxime Logez,Jun Xu,Shengli Tao,Sébastien Villéger,&Sébastien Brosse.(2021).Human impacts on global freshwater fish biodiversity.Science.
MLA	Guohuan Su,et al."Human impacts on global freshwater fish biodiversity".Science (2021).