Abstract The distribution range of the globally Endangered dhole Cuon alpinus overlaps mixed evergreen mid-hill forests of northeastern Bangladesh but lacks any authentic documentation. With the first evidence from this region, we observed the activity pattern of dhole, of its prey and of human activities in Satchari National Park, a part of a larger northeastern forested area, Raghunandan Hill Reserve Forest – the northernmost fringe of the Baramura Hills of India. We obtained 32 photos of solitary individuals on eight different events from six out of 587 camera trap days. Naïve occupancy estimate for dhole was 0.41 with a detection probability of 0.65. We identified two individuals, and reported five predation events. We encountered a moderately high temporal overlap of dhole activity with that of barking deer (∆̂1 = 0.65, CI = 0.42–0.83), human activity (0.63, 0.38–0.89), and livestock movement (0.59, 0.38–0.89). Given that dhole is a diurnal hyper-carnivore, illegal logging and tourism pressure appeared as major disturbances to the species' existence in the park. Habitats of northeastern protected forests, their adjacency with hill ranges of Tripura, and dhole being a habitat generalist, we conjecture its presence in the entire region and recommend thorough camera-trapping efforts.

中文翻译：

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萨查里国家公园的 Dhole Cuon alpinus：来自孟加拉国东北部的第一个可验证证据

摘要 全球濒危dhole Cuon alpinus 的分布范围与孟加拉国东北部的混合常绿中山森林重叠，但缺乏任何真实记录。凭借来自该地区的第一个证据，我们在萨查里国家公园观察了 dhole 的活动模式，它的猎物和人类活动，该公园是更大的东北部森林地区的一部分，拉古南丹山保护区森林 - 巴拉村山的最北端边缘印度。我们从 587 个相机陷阱日中的 6 个日中获得了 8 个不同事件中的 32 张孤独个体的照片。dhole 的朴素占用估计值为 0.41，检测概率为 0.65。我们确定了两个个体，并报告了五个捕食事件。我们遇到了 dhole 活动与吠鹿活动的中等高度时间重叠（Δ̂1 = 0.65，CI = 0.42–0.83），人类活动 (0.63, 0.38–0.89) 和牲畜移动 (0.59, 0.38–0.89)。鉴于 dhole 是昼夜活动的超级食肉动物，非法采伐和旅游压力成为该物种在公园内生存的主要干扰因素。东北部受保护森林的栖息地，它们与特里普拉 (Tripura) 山脉的毗邻，以及作为栖息地通才的 dhole，我们推测其存在于整个地区，并建议进行彻底的相机捕捉工作。