一只灰狼(Canis lupus)在冬天捕食海狸

IF 0.6 4区环境科学与生态学 Q4 Agricultural and Biological Sciences

American Midland Naturalist Pub Date : 2022-01-03 DOI:10.1674/0003-0031-187.1.97

D. Hernández, J. Bump

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引用次数: 0

摘要

摘要狼捕食海狸在北方生态系统中很常见，但捕食事件在冬季被认为是罕见的。我们描述了最近一次海狸在冰盖条件下被狼捕食的事件。这只海狸的上门牙断裂，这可能是它在冬天在陆地上觅食的原因。虽然受伤的动物更容易被捕食，但受伤也会影响觅食决策，这可能会间接增加被捕食的脆弱性。

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Predation of a Beaver (Castor canadensis) by a Gray Wolf (Canis lupus) during Winter

Abstract. Wolf predation of beaver is common in boreal ecosystems, but predation events are thought to be rare in winter. We describe the encounter of a recent wolf predation event of a beaver during conditions of ice cover. The beaver had a broken upper incisor, which may have contributed to it foraging on land during the winter. While it is common for injured animals to have increased vulnerability to predation, injuries can also influence foraging decisions that may indirectly increase vulnerability to predation.

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来源期刊

American Midland Naturalist 环境科学-生态学

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

18-36 weeks

期刊介绍： The American Midland Naturalist has been published for 90 years by the University of Notre Dame. The connotations of Midland and Naturalist have broadened and its geographic coverage now includes North America with occasional articles from other continents. The old image of naturalist has changed and the journal publishes what Charles Elton aptly termed "scientific natural history" including field and experimental biology. Its significance and breadth of coverage are evident in that the American Midland Naturalist is among the most frequently cited journals in publications on ecology, mammalogy, herpetology, ornithology, ichthyology, parasitology, aquatic and invertebrate biology and other biological disciplines.