Tayra (eira barbara) landscape use as a function of cover types, forest protection, and the presence of puma and free-ranging dogs

The tayra (Eira barbara) is a common and broadly distributed Neotropical carnivore, yet is not well-studied. While this species is apparently associated with forested habitats, it also appears tolerant of some anthropogenic disturbance. We deployed 57 unbaited camera traps (n = 4,923 trap-days) in and around a protected area (Furnas do Bom Jesus State Park, São Paulo, Brazil) to survey for tayra and two potentially interactive species: puma (Puma concolor) and free-ranging dogs (Canis familiaris). We used encounter histories generated from photographs and occupancy models to quantify tayra landscape use in the human-dominated landscape composed of the protected area that was near a city and surrounded by agricultural lands dominated by small farms. We fit co-occurrence models to understand whether puma and free-ranging dogs affected landscape use by tayra. We detected tayra at 44% of sites and found that tayra landscape use increased with the proportion of forest cover within 500m of t...狐鼬（Eira barbara）是一种分布广泛的常见新热带界食肉动物，但相关研究仍较为匮乏。尽管该物种通常与森林生境相关联，但也表现出对一定程度人为干扰的耐受性。我们在巴西圣保罗的富纳斯杜邦热苏斯州立公园及其周边区域布设了57台无诱饵相机陷阱（总计4923个相机工作日），以调查狐鼬以及另外两种可能存在种间互动的物种：美洲狮（Puma concolor）和流浪犬（Canis familiaris）。我们利用照片生成的遭遇历史数据与占用模型，量化了狐鼬在该人类主导景观中的景观利用情况——该景观包含一处邻近城市、被小农经营农业用地环绕的保护区。我们构建了共现模型，以探究美洲狮与流浪犬是否会对狐鼬的景观利用产生影响。我们在44%的样点中检测到了狐鼬，并发现狐鼬的景观利用概率随其500米范围内森林覆盖率的提升而升高……