globalchange  > 气候变化与战略
DOI: 10.1073/pnas.2001697117
论文题名:
Specialized meltwater biodiversity persists despite widespread deglaciation
作者: Muhlfeld C.C.; Cline T.J.; Giersch J.J.; Peitzsch E.; Florentine C.; Jacobsen D.; Hotaling S.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:22
语种: 英语
英文关键词: Biodiversity ; Climate change ; Glacier loss ; Invertebrate communities ; Mountain streams
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
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164189
Appears in Collections:气候变化与战略

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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

Recommended Citation:
Muhlfeld C.C.,Cline T.J.,Giersch J.J.,et al. Specialized meltwater biodiversity persists despite widespread deglaciation[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(22)
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