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Decline in the geographical range of the southern patas monkey Erythrocebus patas baumstarki in Tanzania

机译：坦桑尼亚南部帕塔斯猴Erythrocebus patas baumstarki的地理范围下降

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摘要

The southern patas monkey Erythrocebus patas baumstarki is a subspecies thought to be endemic to central north Tanzania but its distribution and abundance is not well documented. We therefore review what is known about the historical and current distribution of the southern patas. It appears that, at present, the southern patas occurs in three populations, in the Serengeti, Mt Kilimanjaro and Arusha. Since 1995 the gaps among these three populations have become larger, thereby increasing their isolation. The available data suggest that, at present, southern patas occur over c. 20,700 km~2 (c. 2.3% of Tanzania's land surface area). In 1995 this was c. 30,800 km~2 (c. 3.5% of the land surface area). As such, the geographical range of the southern patas has declined by c. 33% since 1995. There are unlikely to be > 900 southern patas today, and there could be < 150. Our recommendations are to (1) maintain an internet accessed database (PatasBase) into which sightings of the southern patas can be entered, (2) interview members of local communities to assess past and current distribution and abundance of the southern patas, (3) conduct field studies to obtain more detailed information on the distribution, abundance, and conservation status of patas in Tanzania, (4) undertake ecological and behavioural research on selected groups of southern patas, and (5) prepare and implement a conservation action plan for the southern patas.
机译：南部patas猴Erythrocebus patas baumstarki是被认为是坦桑尼亚中北部特有的亚种，但其分布和丰度并未得到充分记录。因此，我们回顾了有关南部patas的历史和当前分布的已知信息。目前看来，南部帕塔斯分布在塞伦盖蒂，乞力马扎罗山和阿鲁沙三个人口中。自1995年以来，这三个人口之间的差距变得更大，从而增加了他们的孤立感。现有数据表明，目前南部帕塔斯地区发生在c上。 20,700 km〜2（约占坦桑尼亚陆地面积的2.3％）。在1995年是c。 30,800 km〜2（约占陆地表面积的3.5％）。因此，南部帕塔斯州的地理范围下降了c。自1995年以来，占33％。今天的南帕塔斯地区不可能超过900，而可能不超过150。我们的建议是（1）维护可访问南帕塔斯省景点的互联网访问数据库（PatasBase），（ 2）采访当地社区成员，以评估南部帕塔斯地区过去和当前的分布和丰度，（3）进行实地研究，以获得有关坦桑尼亚帕塔斯的分布，丰度和保护状况的更详细信息，（4）进行生态以及对南部帕塔斯特定群体的行为研究，以及（5）制定并实施南部帕塔斯保护行动计划。

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