Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aaf0ec |
Drying drives decline in muskrat population in the Peace-Athabasca Delta, Canada | |
Ward, Ellen M.1; Gorelick, Steven M.1,2 | |
2018-12-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Empirical and anecdotal reports suggest that muskrat are in decline across NorthAmerica, including in the Peace-Athabasca Delta ('Delta'), Canada, one of the largest inland deltas in the world and part of a World Heritage Sitewith 'in Danger' status pending. Muskrat are a key ecological indicator in the Delta. Weinvestigate whether the large-scale loss of critical habitat over the past half-century could be driving a decline in muskrat abundance in the Delta. To do this, we use the Landsat record (1972-2017) to construct a 46 year record of inundation, and compare changes in the extent of critical habitat to the survey record for muskrat (1970-2016) over this 5500 km(2) region. Results showthat the declines in critical habitat and muskrat numbers in the Delta are synchronous: similar to 1450 km(2) of temporarily inundated regions that support critical habitat have diminished by similar to 10 km(2) yr(-1) over the past 46 years, while the muskrat population density (houses/km(2)) has also declined and is significantly related to critical habitat area (km(2)) (R-2 = 0.60, P = 0.0001). These findings have implications for the Delta, a Ramsar Wetland of International Importance in part for its role as a habitat for nearly 200 species of birds, many ofwhich rely on the aquatic habitat considered here. Our results further suggest that the loss ofwetland habitat is a primary driver of the decline of muskrat across the species' native range. |
英文关键词 | ecohydrology boreal ecology hydrological remote sensing habitat loss |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000453617300006 |
WOS关键词 | WATER INDEX NDWI ; WETLAND ; ECOLOGY ; TRENDS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35373 |
专题 | 气候变化 |
作者单位 | 1.Stanford Univ, Dept Earth Syst Sci, Stanford, CA 94305 USA; 2.Stanford Univ, Stanford Woods Inst Environm, Stanford, CA 94305 USA |
推荐引用方式 GB/T 7714 | Ward, Ellen M.,Gorelick, Steven M.. Drying drives decline in muskrat population in the Peace-Athabasca Delta, Canada[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(12). |
APA | Ward, Ellen M.,&Gorelick, Steven M..(2018).Drying drives decline in muskrat population in the Peace-Athabasca Delta, Canada.ENVIRONMENTAL RESEARCH LETTERS,13(12). |
MLA | Ward, Ellen M.,et al."Drying drives decline in muskrat population in the Peace-Athabasca Delta, Canada".ENVIRONMENTAL RESEARCH LETTERS 13.12(2018). |
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