气候变化领域集成服务门户(CCPortal): Impacts of current and future large dams on the geographic range connectivity of freshwater fish worldwide

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DOI	10.1073/pnas.1912776117
	Impacts of current and future large dams on the geographic range connectivity of freshwater fish worldwide
	Barbarossa V.; Schmitt R.J.P.; Huijbregts M.A.J.; Zarfl C.; King H.; Schipper A.M.
发表日期	2020
ISSN	0027-8424
起始页码	3648
结束页码	3655
卷号	117 期号:7
英文摘要	Dams contribute to water security, energy supply, and flood protection but also fragment habitats of freshwater species. Yet, a global species-level assessment of dam-induced fragmentation is lacking. Here, we assessed the degree of fragmentation of the occurrence ranges of ∼10,000 lotic fish species worldwide due to ∼40,000 existing large dams and ∼3,700 additional future large hydropower dams. Per river basin, we quantified a connectivity index (CI) for each fish species by combining its occurrence range with a high-resolution hydrography and the locations of the dams. Ranges of nondiadromous fish species were more fragmented (less connected) (CI = 73 ± 28%; mean ± SD) than ranges of diadromous species (CI = 86 ± 19%). Current levels of fragmentation were highest in the United States, Europe, South Africa, India, and China. Increases in fragmentation due to future dams were especially high in the tropics, with declines in CI of ∼20 to 40 percentage points on average across the species in the Amazon, Niger, Congo, Salween, and Mekong basins. Our assessment can guide river management at multiple scales and in various domains, including strategic hydropower planning, identification of species and basins at risk, and prioritization of restoration measures, such as dam removal and construction of fish bypasses. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Biodiversity; Habitat fragmentation; Hydropower; Migratory fish; River management
语种	英语
scopus关键词	article; biodiversity; China; Congo; Europe; freshwater fish; habitat fragmentation; hydrography; hydropower; India; Niger; nonhuman; risk assessment; river basin; South Africa; tropics; United States; animal; chemistry; classification; ecosystem; environmental protection; fish; geography; physiology; population migration; river; Animal Migration; Animals; Biodiversity; Conservation of Natural Resources; Ecosystem; Fishes; Geography; Rivers
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/161054
作者单位	Barbarossa, V., Department of Environmental Science, Institute for Water and Wetland Research, Radboud University, Nijmegen, 6500 GL, Netherlands, Department of Nature and Rural Areas, PBL Netherlands Environmental Assessment Agency, The Hague, 2500 GH, Netherlands; Schmitt, R.J.P., Natural Capital Project, Stanford University, Stanford, CA 94305, United States, Woods Institute for the Environment, Stanford University, Stanford, CA 94305, United States; Huijbregts, M.A.J., Department of Environmental Science, Institute for Water and Wetland Research, Radboud University, Nijmegen, 6500 GL, Netherlands; Zarfl, C., Center for Applied Geoscience, Eberhard Karls University of Tübingen, Tübingen, 72074, Germany; King, H., Safety and Environmental Assurance Centre, Unilever R&D Unilever, Sharnbrook, MK44 1LQ, United Kingdom; Schipper, A.M., Department of Environmental Science, Institute for Water and Wetland Research, Radboud University, Nijmegen, 6500 GL, Netherlands, Department of Nature and Rural Areas, PBL...
推荐引用方式 GB/T 7714	Barbarossa V.,Schmitt R.J.P.,Huijbregts M.A.J.,et al. Impacts of current and future large dams on the geographic range connectivity of freshwater fish worldwide[J],2020,117(7).
APA	Barbarossa V.,Schmitt R.J.P.,Huijbregts M.A.J.,Zarfl C.,King H.,&Schipper A.M..(2020).Impacts of current and future large dams on the geographic range connectivity of freshwater fish worldwide.Proceedings of the National Academy of Sciences of the United States of America,117(7).
MLA	Barbarossa V.,et al."Impacts of current and future large dams on the geographic range connectivity of freshwater fish worldwide".Proceedings of the National Academy of Sciences of the United States of America 117.7(2020).