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A baseline survey of ungulate abundance and distribution in northern Lao: implications for conservation

机译：老挝北部有蹄类动物数量和分布的基线调查：对保护的影响

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摘要

Large ungulates across South-east Asia have been experiencing a rapid decline in recent decades because of overexploitation by humans. An absence of reliable data on the abundance and distribution of ungulates makes it difficult to assess the effectiveness of conservation efforts to recover their populations. As the principal prey for Endangered tigers Panthera tigris, depletion of wild ungulates is a major threat to the species' persistence and recovery across its range. This study estimated abundance and distribution of five ungulate taxa using a grid-based occupancy survey across a 3,000 km2 core zone within the 5,950 km2 Nam Et-Phou Louey National Protected Area in northern Lao. The results show an abundance index of 5.29 ±0.30 ungulates per km2, with muntjac Munticus spp. and wild pig Sus spp. being most common, moderate levels of serow Capricornis milneedwardsii and sambar Cervus unicolor but few gaur Bos gaurus. This low abundance of medium- and large-sized ungulates at the site strongly suggests that strict control of hunting of these ungulates is important for securing their long-term survival as well as that of the tiger population that depends on them, which is currently the only known breeding population remaining in Indochina.
机译：由于人类的过度开发，整个东南亚的有蹄类动物近几十年来一直在迅速下降。由于缺乏关于有蹄类动物的数量和分布的可靠数据，因此难以评估为恢复其种群而进行的养护工作的有效性。作为濒临灭绝的老虎虎的主要猎物，野生有蹄类动物的枯竭是对该物种在其整个范围内的持久性和恢复的主要威胁。这项研究使用基于网格的占用率调查，评估了老挝北部Nam Et-Phou Louey国家保护区内3,000平方公里的核心区域中五种有蹄类动物的数量和分布。结果表明，丰度指数为每平方公里有蹄类动物5.29±0.30头，芒特种。和野猪Sus spp。是最常见的中等水平的row猴（Capricornis milneedwardsii）和单色水鹿（Cervus），但很少有Bos gaurus。该地点的中型和大型有蹄类动物数量很少，这强烈表明严格控制这些有蹄类动物的狩猎对于确保它们以及依赖它们的老虎种群的长期生存很重要。印度支那只剩下已知的繁殖种群。

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