捕食田鼠：加利福尼亚地松鼠的新型捕食与食肉行为

Vole hunting: novel predatory and carnivorous behavior by California ground squirrels.

作者信息

Smith Jennifer E, Ingbretson Joey E, Miner Mackenzie M, Oestreicher Ella C, Podas Mari L, Ravara Tia A, Teles Lupin M L, Wahl Jada C, Todd Lucy M, Wild Sonja

机构信息

Department of Biology, University of Wisconsin - Eau Claire, Eau Claire, Wisconsin 54701 USA.

Department of Environmental Science and Policy, University of California, Davis, CA 95616 USA.

出版信息

J Ethol. 2025;43(1):3-12. doi: 10.1007/s10164-024-00832-6. Epub 2024 Dec 18.

DOI:10.1007/s10164-024-00832-6

PMID:39802484

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11717845/

Abstract

UNLABELLED

Dietary flexibility allows animals to respond adaptively to food pulses in the environment. Here we document the novel emergence of widespread hunting of California voles and carnivorous feeding behavior by California ground squirrels. Over two months in the twelfth year of a long-term study on the squirrel population, we document 74 events of juvenile and adult ground squirrels of both sexes depredating, consuming, and/or competing over vole prey. Our video footage, photographic evidence, and direct observations of marked individual squirrels provide insights into the ecological circumstances favoring behavioral flexibility in foraging associated with a decadal peak in vole abundance. Digital video images related to the article are available at http://www.momo-p.com/showdetail-e.php?movieid=momo241126ob01a.

SUPPLEMENTARY INFORMATION

The online version contains supplementary material available at 10.1007/s10164-024-00832-6.

摘要

未标注

饮食灵活性使动物能够对环境中的食物脉冲做出适应性反应。在此，我们记录了加州地松鼠广泛捕食加州田鼠以及食肉性取食行为这一新颖现象的出现。在对松鼠种群进行的长期研究的第十二年中，历经两个月，我们记录了74起幼年和成年地松鼠（包括雄性和雌性）捕食、食用和/或争夺田鼠猎物的事件。我们的视频片段、照片证据以及对有标记的个体松鼠的直接观察，为有利于觅食行为灵活性的生态环境提供了见解，这种灵活性与田鼠数量的十年峰值相关。与本文相关的数字视频图像可在http://www.momo-p.com/showdetail-e.php?movieid=momo241126ob01a获取。