唐家河自然保护区黑熊种群生存力初步分析

A Preliminary Analysis on Population Viability for Black Bear in Tangjiahe

关键词:  黑熊  种群生存力  近亲繁殖  食物歉收  人为诱捕

Key words:  black bear  population viability  inbreeding depression  insufficient food  trapping

摘要:

根据黑熊种群的相关参数,借助旋涡软件(Vortex8.41),对唐家河自然保护区内黑熊(Ursus thibetanus)的种群动态进行模拟分析。结果表明,在没有近亲繁殖、食物歉收和人为诱捕等灾害影响下,唐家河自然保护区内黑熊种群数量在100a内稳步增长;而在加入近亲繁殖、人为诱捕和食物歉收等因素时,种群数量增长相对受到影响,其中,人为诱捕是种群数量下降的主要因素。

Abstract:

According to the relative parameters,the population dynamics of the black bears in Tangjiahe Natural Reservation were simulated by a simulation modal-vortex 8.41,and the factors affecting the population were analyzed. The results show that without inbreeding depression and catastrophes,the population would gradually increase,otherwise it would decrease.Trapping is the primary factor in all affected factors Some recommendations on conversation action are put forward based on these analyses.