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首页> 外文期刊>Biotropica >Habitat use by sympatric jaguars and pumas across a gradient of human disturbance in Belize.
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Habitat use by sympatric jaguars and pumas across a gradient of human disturbance in Belize.

机译：在伯利兹，随着美洲虎的迁徙，美洲虎和美洲狮的栖息地受到了一系列人类干扰。

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Jaguars (Panthera onca) and pumas (Puma concolor) are sympatric across the entire jaguar range, where they coexist in increasingly fragmented landscapes under threat of persecution mainly in response to livestock predation. Pumas are known to inhabit a greater variety of natural habitats than jaguars, but little is known about the influence of anthropogenic factors on the coexistence of these two similar-sized cats. This study compares habitat use of jaguars and pumas in Belize, Central America, using 1380 jaguar and puma photo captures from 3 yr of camera trapping, comprising 64-74 individual jaguars and an unknown number of pumas. Jaguars and pumas did not differ in their use of a large block of relatively homogenous secondary rain forest. However, pumas were scarce outside this forest block, whereas jaguars were detected throughout the human-influenced landscape. Reasons for this discrepancy may include differential tolerance to human disturbance, and resource limitation for pumas outside the forest block. Intra-specific variation in jaguar activity in the form of sex-dependent habitat use was detected across the landscape. Male jaguars were detected at more locations than female jaguars and more frequently at each location, with a declining difference from a 50-fold greater detection in the protected forest, through forest buffer, savannah, pastures, to negligible difference in the disturbed forest.Digital Object Identifier http://dx.doi.org/10.1111/j.1744-7429.2010.00641.x
机译：美洲虎（ Panthera onca ）和美洲豹（ Puma concolor ）在整个美洲虎范围内都是同胞的，它们在受迫害威胁的情况下并存于越来越分散的景观中，主要是由于牲畜被捕食。众所周知，美洲狮比美洲虎拥有更多种类的自然栖息地，但是关于人为因素对这两只相似大小的猫共存的影响知之甚少。这项研究比较了中美洲伯利兹美洲虎和美洲狮的栖息地使用情况，使用了3年相机诱捕过程中1380美洲虎和美洲狮的照片，其中包括64-74只美洲虎和数量不明的美洲虎。美洲虎和美洲狮在使用一大片相对均质的二级雨林方面没有区别。然而，美洲狮在该林区之外稀少，而美洲虎在整个人类影响的景观中都被发现。造成这种差异的原因可能包括对人为干扰的耐受力不同，以及林区外的美洲狮资源有限。在整个景观中都检测到美洲虎活动的种内差异以性别依赖的栖息地形式使用。在美洲美洲虎中发现的男性美洲虎比在美洲美洲虎中的美洲虎更多，并且在每个位置的频率更高。从受保护森林中通过森林缓冲区，热带稀树草原，草场的检出率提高了50倍，到受干扰森林中的差异可忽略不计。对象标识符http://dx.doi.org/10.1111/j.1744-7429.2010.00641.x

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