دورية أكاديمية
Expanding beaver pond distribution in Arctic Alaska, 1949 to 2019.
| العنوان: | Expanding beaver pond distribution in Arctic Alaska, 1949 to 2019. |
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| المؤلفون: | Tape KD; Geophysical Institute, University of Alaska Fairbanks, Fairbanks, USA. kdtape@alaska.edu., Clark JA; Geophysical Institute, University of Alaska Fairbanks, Fairbanks, USA., Jones BM; Institute of Northern Engineering, University of Alaska Fairbanks, Fairbanks, USA., Kantner S; Kotzebue, USA., Gaglioti BV; Institute of Northern Engineering, University of Alaska Fairbanks, Fairbanks, USA., Grosse G; Helmholtz Centre for Polar and Marine Research, Alfred Wegener Institute, Potsdam, Germany., Nitze I; Helmholtz Centre for Polar and Marine Research, Alfred Wegener Institute, Potsdam, Germany. |
| المصدر: | Scientific reports [Sci Rep] 2022 May 03; Vol. 12 (1), pp. 7123. Date of Electronic Publication: 2022 May 03. |
| نوع المنشور: | Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: London : Nature Publishing Group, copyright 2011- |
| مواضيع طبية MeSH: | Ponds* , Rodentia*, Alaska ; Animals ; Arctic Regions ; Tundra |
| مستخلص: | Beavers were not previously recognized as an Arctic species, and their engineering in the tundra is considered negligible. Recent findings suggest that beavers have moved into Arctic tundra regions and are controlling surface water dynamics, which strongly influence permafrost and landscape stability. Here we use 70 years of satellite images and aerial photography to show the scale and magnitude of northwestward beaver expansion in Alaska, indicated by the construction of over 10,000 beaver ponds in the Arctic tundra. The number of beaver ponds doubled in most areas between ~ 2003 and ~ 2017. Earlier stages of beaver engineering are evident in ~ 1980 imagery, and there is no evidence of beaver engineering in ~ 1952 imagery, consistent with observations from Indigenous communities describing the influx of beavers over the period. Rapidly expanding beaver engineering has created a tundra disturbance regime that appears to be thawing permafrost and exacerbating the effects of climate change. (© 2022. The Author(s).) |
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| تواريخ الأحداث: | Date Created: 20220503 Date Completed: 20220505 Latest Revision: 20220716 |
| رمز التحديث: | 20221213 |
| مُعرف محوري في PubMed: | PMC9065087 |
| DOI: | 10.1038/s41598-022-09330-6 |
| PMID: | 35504957 |
| قاعدة البيانات: | MEDLINE |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 2045-2322 |
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| DOI: | 10.1038/s41598-022-09330-6 |