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首页> 外文期刊>Global Ecology and Conservation >Group size and social organization of the endangered Eld's deer (Rucervus eldii thamin): Results from a long-term study in Myanmar
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Group size and social organization of the endangered Eld's deer (Rucervus eldii thamin): Results from a long-term study in Myanmar

机译：濒临灭绝的小鹿（Rucervus eldii thamin）的种群规模和社会组织：缅甸一项长期研究的结果

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The Eld's deer ( Rucervus eldii thamin ) is an endangered endemic species of Myanmar. The largest existing wild population of this species is localized in Shwesettaw Wildlife Sanctuary (SWS). Although SWS is believed to hold the largest population of wild Eld's deer, there has been no investigative research carried out on the field ecology of this species in this specific region. In this study, we examined the status of social organization with increasing population density of Eld's deer in SWS by analyzing long-term monitoring data (2001–2018). We also investigated the potential environmental factors that might affect their social organization and grouping patterns by analyzing five years data (2014–2018) in SWS. We found that the mean group size and crowding of Eld's deer for the hot dry season in Myanmar was 7.6?±?0.9 and 11.1, respectively. The population of Eld's deer in SWS has increased steadily during these 18 years, and the fawn to adult female ratio (the proportion of fawns) has increased and is positively associated with increasing density of Eld's deer. Although the adult sex ratio was slightly skewed towards females, this ratio did not show any detectable relationship with increasing population density. Eld's deer strongly avoided areas close to human settlements and roads. Larger groups of Eld's deer showed preferences of scrub and grassland to the degraded forest habitat because this type of habitat in SWS is commonly associated with military areas where intrusion by people is strictly prohibited. We conclude that it is crucially important to manage or protect the remaining natural habitat of Eld's deer in SWS so that disturbance is reduced and the population can be conserved effictively.
机译：埃尔德鹿（Rucervus eldii thamin）是缅甸的一种濒临灭绝的特有物种。该物种现有的最大野生种群位于Shwesettaw野生动物保护区（SWS）。尽管人们认为SWS拥有最多的野生麋鹿鹿，但尚未在该特定区域对该物种的野外生态进行调查研究。在这项研究中，我们通过分析长期监测数据（2001-2018年），研究了随西南地区El鹿种群密度的增加而出现的社会组织状况。我们还通过分析SWS的五年数据（2014-2018），调查了可能影响其社会组织和分组模式的潜在环境因素。我们发现缅甸炎热干燥季节的平均群大小和雄鹿的拥挤分别为7.6±0.9和11.1。在这18年中，西南小城市的El鹿种群稳定增长，并且小鹿与成年雌性比（小鹿的比例）增加，并且与with的密度呈正相关。尽管成年人的性别比例略微偏向女性，但该比例与人口密度的增加没有任何可检测的关系。麋鹿强烈避免靠近人类住区和道路的区域。较大的一群鹿显示出灌木丛和草地对退化的森林栖息地的偏爱，因为上南半山区的这种栖息地通常与严格禁止人为入侵的军事区域有关。我们得出结论，至关重要的是，应对或保护西南小水域的El鹿剩余自然栖息地，以减少干扰并有效地保护种群。

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