气候变化领域集成服务门户(CCPortal): Specialized meltwater biodiversity persists despite widespread deglaciation

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DOI	10.1073/pnas.2001697117
	Specialized meltwater biodiversity persists despite widespread deglaciation
	Muhlfeld C.C.; Cline T.J.; Giersch J.J.; Peitzsch E.; Florentine C.; Jacobsen D.; Hotaling S.
发表日期	2020
ISSN	0027-8424
卷号	117 期号:22
英文摘要	Glaciers are important drivers of environmental heterogeneity and biological diversity across mountain landscapes. Worldwide, glaciers are receding rapidly due to climate change, with important consequences for biodiversity in mountain ecosystems. However, the effects of glacier loss on biodiversity have never been quantified across a mountainous region, primarily due to a lack of adequate data at large spatial and temporal scales. Here, we combine high-resolution biological and glacier change (ca. 1850-2015) datasets for Glacier National Park, USA, to test the prediction that glacier retreat reduces biodiversity in mountain ecosystems through the loss of uniquely adapted meltwater stream species. We identified a specialized cold-water invertebrate community restricted to the highest elevation streams primarily below glaciers, but also snowfields and groundwater springs. We show that this community and endemic species have unexpectedly persisted in cold, high-elevation sites, even in catchments that have not been glaciated in ∼170 y. Future projections suggest substantial declines in suitable habitat, but not necessarily loss of this community with the complete disappearance of glaciers. Our findings demonstrate that high-elevation streams fed by snow and other cold-water sources continue to serve as critical climate refugia for mountain biodiversity even after glaciers disappear. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Biodiversity; Climate change; Glacier loss; Invertebrate communities; Mountain streams
语种	英语
scopus关键词	ground water; snow; altitude; Article; biodiversity; catchment area (hydrology); climate change; cold; community ecology; deglaciation; endemic species; glacier; invertebrate; natural spring; nonhuman; priority journal; United States; animal; classification; climate change; ecosystem; environment; environmental monitoring; growth, development and aging; ice cover; population dynamics; Animals; Biodiversity; Climate Change; Ecosystem; Environment; Environmental Monitoring; Ice Cover; Invertebrates; Population Dynamics
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/158849
作者单位	Muhlfeld, C.C., Northern Rocky Mountain Science Center, US Geological Survey, Glacier National Park, West Glacier, MT 59936, United States, Flathead Lake Biological Station, University of Montana, Polson, MT 59860, United States; Cline, T.J., Northern Rocky Mountain Science Center, US Geological Survey, Glacier National Park, West Glacier, MT 59936, United States; Giersch, J.J., Northern Rocky Mountain Science Center, US Geological Survey, Glacier National Park, West Glacier, MT 59936, United States; Peitzsch, E., Northern Rocky Mountain Science Center, US Geological Survey, Glacier National Park, West Glacier, MT 59936, United States; Florentine, C., Northern Rocky Mountain Science Center, US Geological Survey, Glacier National Park, West Glacier, MT 59936, United States; Jacobsen, D., Freshwater Biological Section, Department of Biology, University of Copenhagen, Copenhagen, 2100, Denmark; Hotaling, S., School of Biological Sciences, Washington State University, Pullman, WA 99164, United States
推荐引用方式 GB/T 7714	Muhlfeld C.C.,Cline T.J.,Giersch J.J.,et al. Specialized meltwater biodiversity persists despite widespread deglaciation[J],2020,117(22).
APA	Muhlfeld C.C..,Cline T.J..,Giersch J.J..,Peitzsch E..,Florentine C..,...&Hotaling S..(2020).Specialized meltwater biodiversity persists despite widespread deglaciation.Proceedings of the National Academy of Sciences of the United States of America,117(22).
MLA	Muhlfeld C.C.,et al."Specialized meltwater biodiversity persists despite widespread deglaciation".Proceedings of the National Academy of Sciences of the United States of America 117.22(2020).