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首页> 外文期刊>Oryx >Population status and identification of potential habitats for the conservation of the Endangered black howler monkey Alouatta pigra in northern Chiapas, Mexico
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Population status and identification of potential habitats for the conservation of the Endangered black howler monkey Alouatta pigra in northern Chiapas, Mexico

机译：墨西哥北部恰帕斯州的濒危黑吼猴Alouatta猪种群的种群状况和潜在栖息地的识别

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摘要

In the Mexican state of Chiapas the rainforest has been cleared, to make way for crops and extensive cattle ranching, at an annual rate of 12.4% since 2002. The conservation status of the Endangered black howler monkey Alouatta pigra in these fragmented landscapes in northeastern Chiapas has not previously been examined. We therefore surveyed A. pigra populations in the municipality of Playas de Catazaja during 2004-2006 to obtain population and habitat data for this species in 115 fragments of remnant vegetation. A geographical information system was used to determine the variables (fragment size, and distances to the nearest fragment, human settlement and water body) that could be used to generate an index of habitat potential for A. pigra. We estimated a population of 659 individuals and a mean troop size of 5.0 ± SE 2.3. The adult male:female ratio was 1:1.4, the adult female: juvenile ratio 1:0.6 and adult female: immature ratio 1:0.8. The index of habitat potential indicates that 12% of the fragments have a high conservation potential for A. pigra. This index is a valuable tool for evaluating the conservation status of this species and its habitat, and can be expanded to include additional variables, thus allowing for a more comprehensive assessment.
机译：自2002年以来，在墨西哥的恰帕斯州，雨林已被清除，以作农作物和广泛的牲畜放牧之用，年增长率为12.4％。濒危的黑black猴Alouatta猪在这些零散的恰帕斯州东北部景观中的保护状况以前没有被检查过。因此，我们在2004年至2006年间调查了Playas de Catazaja市的A. pigra种群，以获取115种残余植被中该物种的种群和栖息地数据。地理信息系统用于确定变量（片段大小，到最近片段的距离，人类住区和水体），这些变量可用于生成猪笼草的栖息地潜力指数。我们估计人口为659人，平均部队规模为5.0±SE 2.3。成年男性：女性比率为1：1.4，成年女性：青少年比率为1：0.6，成年女性：未成熟比率为1：0.8。生境潜力指数表明，有12％的碎片具有高的潜在保存潜力。该指数是评估该物种及其栖息地的保护状况的宝贵工具，可以扩展为包括其他变量，从而可以进行更全面的评估。

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