四川唐家河自然保护区扭角羚死亡监测探讨

The Monitoring on Dead Takin(Budorcas taxicolor) in Tangjiahe National NatureReserve,Sichuan

扭角羚是唐家河国家级自然保护区的优势大型草食动物。2006～2007年,笔者以在保护区内选择的4条监测样线及前往工作样线途中发现的扭角羚死亡个体为研究对象,对保护区内扭角羚死亡情况、生境特征进行分析,以期为扭角羚的科学保护和管理决策提供依据。结果显示:2006～2007年间共发现14头扭角羚死亡个体,其中11例为老年个体,2例为成年个体,1例未判断,死亡主要发生在冬春季节,自然死亡地在海拔1180～1870m的落叶阔叶林内,坡度为5°～15°,乔木层郁闭度为10%～25%,距水源较近。

Takin（Budorcas taxicolor） is one of the largest herbivore in Tangjiahe National Nature Reserve（TNNR）.No report focused on the mortality of this animal so far.For the conservation and management of the species,we recorded takin＇s natural death and the habitat character of the death place in TNNR from 2006 to 2007.There were 4 line transects selected in the reserve.We found 14 dead individuals,including 11 old individuals,2 strong adult individual,while 1 individual can not be identified.Meanwhile,we also found that the animal usually died in winter and spring.Most of the takins died in the mixed deciduous and broad-leaved forest at 1180~1870 m a.s.l,where closed to water.The slope degree of the death place was 5°~15°,and the forest canopy was 10%~25%.