Shrestha Arati, Bhattarai Santosh, Shrestha Binod, Koju Narayan Prasad
Central Department of Environmental Science Tribhuvan University Kathmandu Nepal.
National Trust for Nature Conservation-Biodiversity Conservation Center Chitwan Nepal.
Ecol Evol. 2021 Sep 23;11(21):14689-14696. doi: 10.1002/ece3.8156. eCollection 2021 Nov.
Pangolins in the genus are nocturnal, burrowing, insectivorous mammals listed as Critically Endangered or Endangered by the International Union for Conservation of Nature. Two species of pangolins are found in Nepal: the Chinese pangolin () and Indian pangolin (). Despite having high conservation priority, little attention has been given to conservation interventions of both species of pangolins found in the Terai region (low land) of Nepal. The present study assesses habitat use and factors affecting the habitat choice of pangolins in low land (Terai), Nepal, focusing on Amritdharapani Community Forest of Chitwan district. Pangolin burrows were used as the indirect signs, and opportunistic sampling method was used to record the burrows. After the identification of all occurrence sites (burrows) in the field, random points were generated excluding the points where burrows were recorded for sampling of nonoccurrence sites. A total of thirty-nine burrows were observed at elevations ranging from 301 to 413 masl. Burrows were frequently associated with northwest aspects, gentle slope (15°-20°), moderate canopy cover (51%-75%), red-colored soil, and acidic soils with pH 6.5-7. The burrows were most common in areas with weak human disturbance (i.e., 1,500-1,700 m from settlements), 800-1,200 m from roads, and within 300 m from a water source and within 20 m from the nearest termitarium. Distance to settlement, distance to road, soil pH, and canopy cover were found to affect the habitat choice of pangolins in the study area.
该属穿山甲是夜行性、穴居、食虫的哺乳动物,被国际自然保护联盟列为极度濒危或濒危物种。尼泊尔发现两种穿山甲:中华穿山甲()和印度穿山甲()。尽管这两种穿山甲具有很高的保护优先级,但尼泊尔特莱地区(低地)发现的这两种穿山甲的保护干预措施却很少受到关注。本研究评估了尼泊尔低地(特莱)穿山甲的栖息地利用情况以及影响其栖息地选择的因素,重点关注奇旺区的阿姆里特达拉帕尼社区森林。将穿山甲洞穴作为间接迹象,并采用机会抽样方法记录洞穴。在野外确定所有出现地点(洞穴)后,生成随机点,不包括记录有洞穴的点,用于非出现地点的采样。在海拔301至413米的高度共观察到39个洞穴。洞穴经常与西北方向、缓坡(15°-20°)、中等树冠覆盖(51%-75%)、红色土壤以及pH值为6.5-7的酸性土壤有关。洞穴在人类干扰较弱的地区最为常见(即距离定居点1500-1700米)、距离道路800-1200米、距离水源300米以内以及距离最近白蚁巢20米以内。研究发现,到定居点的距离、到道路的距离、土壤pH值和树冠覆盖会影响研究区域内穿山甲的栖息地选择。