Jolly-Seber法估算长爪沙鼠种群参数的适用性探讨

Applicability on Estimating Population Parameters of Mongolian Gerbil (Meriones unguiculatus) by the Jolly-Seber Model

以2000年6月～10月群居性长爪沙鼠野生种群的标志重捕资料为依据,采用Jolly-Seber模型估算了该鼠种群参数,结果表明,长爪沙鼠个体间具等捕性(Leslie法检验),研究期间取样个体的重捕率平均为89 7%(77 4%～100%);参数估计结果具有合理的生物学意义,认为采用该模型估算长爪沙鼠种群参数是适用的。

The population parameters of Mongolian gerbil (Meriones unguiculatus) in Inner Mongolia of China were estimated by using Capture-mark-recapture (CMR) and Jolly-Seber model from June to October in 2000. We found that the possibility of being caught among the individuals in marked population of Mongolian gerbil is not different, that is equal catch-ability; and the mean probability that an animal kept alive at ith sampling occasion is re-caught at sample i was 89.7% in each capture-recapture time. It shows that the Jolly-Seber model is suitable for estimating parameters of M. unguiculatus.