【摘要】 1962年思茅就有野生亚洲象的记录,1976年象群消失,1992年又从西双版纳返回,近年来种群在不断变迁,但据以往的调查记录亚洲象很少进入太阳河保护区。在思茅区亚洲象数量和分布增加的背景下,2017年4月～2019年7月,我们运用红外相机技术、样线法和访谈法对保护区内亚洲象开展调查。自2018年4月以来,发现亚洲象重返太阳河自然保护区,数量为5～6头的极小种群。结果表明亚洲象的种群数量整体上呈增长趋势,分布区域也有扩散的趋势,亚洲象保护取得显著成效,但其保护现状仍不容乐观,面临着栖息地减少和高度破碎化、食物不足以及人为活动干扰等威胁。本文还讨论了亚洲象对森林生态系统的作用及相关的保护措施。更多还原

【Abstract】 In 1962, there had been recordings of wild Asian elephants in Simao, which disappeared in 1976, and then returned back from Xishuangbanna in 1992. In recent years, the elephant population has been constantly changing. According to historical investigation, Asian elephants rarely entered the Taiyang river Nature Reserve. In the background of the expension of the Asian elephant populations, we used infrared camera technology, line transect method and interview method to survey the Asian elephants from April 2017 to July 2019 in Taiyanghe Reserve. Since April 2018, we found a small populations of 5 ～ 6 elephants was back to this area. The results showed that wild Asian elephants were in a expansion in population and distribution area, showing the protection measures have achieved significant effects.However, its conservation status is still not optimistic, the greatest threat being the loss and fragmentation of habitat, natural food shortages and the influence of human activities. We also discussed the role of Asian elephants in forest ecosystems and further protection measures.更多还原