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美洲狮在移动和觅食时的栖息地偏好预示着共享景观中人类与食肉动物冲突的可能性。

Puma habitat preferences when moving and feeding predict the potential for human-carnivore conflict in shared landscapes.

作者信息

Suraci Justin P, Lacey L Mae, Freeman Patrick T, Stratton Andrew, Kupar Caitlin, Sager-Fradkin Kimberly, Bergman Dylan, Ackerman Bethany, Phillips Kristen A, Murphie Shannon, Sullivan Cassandra, Elbroch L Mark

机构信息

Conservation Science Partners, Inc., Truckee, California, USA.

Panthera, New York, New York, USA.

出版信息

Ecol Appl. 2025 Sep;35(6):e70101. doi: 10.1002/eap.70101.

Abstract

Large carnivore persistence in an increasingly human-dominated world requires coexistence between carnivores and people on shared landscapes. Yet, sharing space with carnivores presents challenges, including maintaining sufficient habitat to allow carnivores to satisfy life-history needs (e.g., hunting, dispersal, and territory establishment) while avoiding conflict with people. To understand the drivers of carnivore habitat use and conflict in shared landscapes, we quantified puma (Puma concolor) habitat selection while moving and while feeding on native prey across a mosaic of developed areas, working landscapes, and wildlands on the Olympic Peninsula, Washington, USA. We fit resource selection models to movement data from GPS collars and to kill site locations for pumas across four age-sex classes: male and female adults and dispersers. We then quantified the association between habitat preferences for each behavioral state (moving and feeding) and the spatial distribution of puma-human interactions reported to state wildlife authorities. Across age-sex classes, puma habitat selection was more strongly influenced by human land uses when moving than when feeding, with adult females being the only age-sex class to exhibit avoidance of development and agriculture when feeding. Correspondingly, areas categorized as highly suitable for feeding but unsuitable for movement tended to have substantially greater amounts of developed and agricultural land than areas considered suitable for both behaviors. Analysis of puma-human interactions revealed that habitat preferences when feeding were strongly associated with the probability of both domestic animal depredations and sightings of pumas by people across most puma age-sex classes (except adult females). By contrast, habitat selection when moving was negatively associated with depredations and sightings for all pumas. These findings suggest that pumas are encountering livestock, pets, and people opportunistically in areas that are otherwise highly suitable for hunting native prey, but that sensitivity to human disturbance when moving across the landscape leads to limited opportunity for conflict when engaged in this behavior. We leveraged these findings to identify important multifunctional habitat across our study area (i.e., places that will support both moving and feeding) and to explore pathways toward stable puma-human coexistence based on achievable changes to human behavior that minimize conflict opportunities.

摘要

在一个人类主导程度日益加深的世界中,大型食肉动物的存续需要食肉动物与人类在共享的土地上共存。然而,与食肉动物共享空间存在挑战,包括维持足够的栖息地,以使食肉动物能够满足其生活史需求(例如狩猎、扩散和领地建立),同时避免与人类发生冲突。为了了解共享土地上食肉动物栖息地利用和冲突的驱动因素,我们在美国华盛顿州奥林匹克半岛的一片由开发区、工作区和荒野组成的镶嵌区域中,对美洲狮(美洲狮)在移动时以及捕食本地猎物时的栖息地选择进行了量化。我们将资源选择模型应用于来自GPS项圈的移动数据以及美洲狮在四个年龄 - 性别类别(成年雄性和雌性以及扩散个体)中的捕杀地点。然后,我们量化了每种行为状态(移动和捕食)的栖息地偏好与向州野生动物管理部门报告的美洲狮与人类互动的空间分布之间的关联。在所有年龄 - 性别类别中,美洲狮移动时的栖息地选择比捕食时受人类土地利用的影响更大,成年雌性是唯一在捕食时表现出避开开发区和农业区的年龄 - 性别类别。相应地,被归类为非常适合捕食但不适合移动的区域往往比被认为适合这两种行为的区域有更多的开发区和农业用地。对美洲狮与人类互动的分析表明,在大多数美洲狮年龄 - 性别类别(成年雌性除外)中,捕食时的栖息地偏好与家畜被捕食以及人类目击美洲狮的概率密切相关。相比之下,移动时的栖息地选择与所有美洲狮的被捕食和目击情况呈负相关。这些发现表明,美洲狮在其他方面非常适合捕食本地猎物的区域中偶然遇到家畜、宠物和人类,但在穿越景观时对人类干扰的敏感性导致其在这种行为中发生冲突的机会有限。我们利用这些发现来确定我们研究区域内重要的多功能栖息地(即既支持移动又支持捕食的地方),并基于对人类行为的可实现改变来探索实现美洲狮与人类稳定共存的途径,这些改变可将冲突机会降至最低。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a42/12426584/6157a4790937/EAP-35-e70101-g003.jpg

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