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首页> 外文期刊>American journal of primatology >Terrestriality in the bornean orangutan (Pongo pygmaeus morio) and implications for their ecology and conservation
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Terrestriality in the bornean orangutan (Pongo pygmaeus morio) and implications for their ecology and conservation

机译：婆罗洲猩猩（Pongo pygmaeus morio）的陆生性及其生态和保护意义

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Aside from anecdotal evidence, terrestriality in orangutans (Pongo spp.) has not been quantified or subject to careful study and important questions remain about the extent and contexts of terrestrial behavior. Understanding the factors that influence orangutan terrestriality also has significant implications for their conservation. Here we report on a camera trapping study of terrestrial behavior in the northeastern Bornean orangutan, Pongo pygmaeus morio, in Wehea Forest, East Kalimantan, Indonesia. We used 78 non-baited camera traps set in 43 stations along roads, trails, and at mineral licks (sepans) to document the frequency of orangutan terrestriality. Habitat assessments were used to determine how terrestrial behavior was influenced by canopy connectivity. We compared camera trapping results for P. p. morio to those for a known terrestrial primate (Macaca nemestrina), and another largely arboreal species (Presbytis rubicunda) to assess the relative frequency of terrestrial behavior by P. p. morio. A combined sampling effort of 14,446 trap days resulted in photographs of at least 15 individual orangutans, with females being the most frequently recorded age sex class (N=32) followed by flanged males (N=26 records). P. p. morio represented the second most recorded primate (N=110 total records) of seven primate species recorded. Capture scores for M. nemestrina (0.270) and P. p. morio (0.237) were similar and almost seven times higher than for the next most recorded primate, P. rubicunda (0.035). In addition, our results indicate that for orangutans, there was no clear relationship between canopy connectivity and terrestriality. Overall, our data suggest that terrestriality is relatively common for the orangutans in Wehea Forest and represents a regular strategy employed by individuals of all age-sex classes. As Borneo and Sumatra increasingly become characterized by mixed-use habitats, understanding the ecological requirements and resilience in orangutans is necessary for designing optimal conservation strategies.
机译：除了轶事证据，猩猩的陆栖性（Pongo spp。）还没有被量化或需要仔细研究，有关陆生行为的程度和背景的重要问题仍然存在。了解影响猩猩陆地的因素也对其保护具有重要意义。在这里，我们报道了在印度尼西亚东加里曼丹省Wehea森林的东北婆罗洲猩猩Pongo pygmaeus morio的陆生行为的相机诱捕研究。我们使用了78个无诱饵的摄影机陷阱，这些陷阱设在沿道路，步道和矿物舔（塞班）的43个站点中，以记录猩猩的陆地频率。栖息地评估用于确定树冠连通性如何影响陆地行为。我们比较了P. p。的相机陷印结果。已知陆生灵长类动物（Macaca nemestrina）和另一种主要具树种的动物（Presbytis rubicunda）的活动范围，以评估P. p。的陆生行为相对频率。莫里奥。总共14446个捕获日的采样工作至少拍摄了15只猩猩，其中雌性是记录最频繁的年龄性别类别（N = 32），其次是有凸缘的雄性动物（N = 26个记录）。 P. morio代表了所记录的七个灵长类物种中第二大被记录的灵长类动物（N = 110个总记录）。 nemestrina（0.270）和P. p。的得分。莫里奥（0.237）相似，几乎比记录第二多的灵长类动物毕赤酵母（0.035）高出七倍。此外，我们的结果表明，对于猩猩而言，冠层的连通性与陆地之间没有明确的关系。总体而言，我们的数据表明，陆生动物在Wehea森林中的猩猩相对普遍，并且代表了所有年龄性别人群的常规策略。随着婆罗洲和苏门答腊越来越多地成为混合用途生境的特征，了解猩猩的生态要求和适应力对于设计最佳的保护策略十分必要。

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