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The small home ranges and large local ecological impacts of pet cats
Animal Conservation ( IF 2.8 ) Pub Date : 2020-03-11 , DOI: 10.1111/acv.12563
R. Kays 1, 2 , R. R. Dunn 3 , A. W. Parsons 1, 2 , B. Mcdonald 1, 2 , T. Perkins 4 , S. A. Powers 5 , L. Shell 6 , J. L. McDonald 7 , H. Cole 7 , H. Kikillus 8 , L. Woods 8 , H. Tindle 9 , P. Roetman 9
Affiliation  

Domestic cats (Felis catus) are a conservation concern because they kill billions of native prey each year, but without spatial context the ecological importance of pets as predators remains uncertain. We worked with citizen scientists to track 925 pet cats from six countries, finding remarkably small home ranges (3.6 ± 5.6 ha). Only three cats ranged > 1 km2 and we found no relationship between home range size and the presence of larger native predators (i.e. coyotes, Canis latrans). Most (75%) cats used primarily (90%) disturbed habitats. Owners reported that their pets killed an average of 3.5 prey items/month, leading to an estimated ecological impact per cat of 14.2‐38.9 prey ha−1 yr−1. This is similar or higher than the per‐animal ecological impact of wild carnivores but the effect is amplified by the high density of cats in neighborhoods. As a result, pet cats around the world have an ecological impact greater than native predators but concentrated within ~100 m of their homes.

中文翻译:

宠物猫的小型房屋范围和当地较大的生态影响

家猫(Felis catus)是一项保护方面的问题,因为它们每年会杀死数十亿只本地猎物,但在没有空间背景的情况下,宠物作为捕食者的生态重要性仍然不确定。我们与公民科学家合作,追踪了来自六个国家的925只宠物猫,发现它们的家园非常小(3.6±5.6公顷)。只有三只猫的范围大于1 km 2,我们发现家庭范围的大小与更大的本地捕食者(即土狼,Canis latrans)之间没有关系。大多数(75%)的猫主要使用(90%)受干扰的栖息地。主人报告说,他们的宠物每月平均杀死3.5个猎物,导致每只猫的生态影响估计为14.2-38.9个猎物ha - 1 年-1。这与野生肉食动物对动物的生态影响相似或更高,但是邻里猫的高密度加剧了这种影响。结果,世界各地的宠物猫对生态的影响都比本土掠食者大,但集中在其房屋的约100 m之内。
更新日期:2020-03-11
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