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草兔的年龄鉴定和种群结构分析
引用本文:卢欣,申守义,高尚文.草兔的年龄鉴定和种群结构分析[J].兽类学报,1994(3).
作者姓名:卢欣  申守义  高尚文
作者单位:山西省生物研究所
摘    要:根据1991年2-10月猎自晋东南的212只和1990-1992年狩猎季节猎自山西和陕西省各地的1510只草兔眼晶体重的分布规律并参照繁殖资料,确定225毫克为区别1年以下及其以上个体的临界重量。秋-冬季种群中,当年兔占86.3(72.2-93.5)%;随着繁殖季节的推移,当年兔的比例逐渐增加。在4011只标本中,雌性占52.3%;其中1226只幼体和195只成体中分别有雌性52.4%和54.4%。在2-9月所获的91只当年兔有雌性50.5%,而成体中雌性则有58.2%。

关 键 词:草兔,眼晶体重,年龄组成,性比

DETERMINATION OF AGE AND ANALYSIS OF POPULATION STRUCTURE IN CAPE HARE(LEPUS CAPENSIS)
LUXin SHEN Shouyi GAO shangwen.DETERMINATION OF AGE AND ANALYSIS OF POPULATION STRUCTURE IN CAPE HARE(LEPUS CAPENSIS)[J].Acta Theriologica Sinica,1994(3).
Authors:LUXin SHEN Shouyi GAO shangwen
Abstract:The Cape hares(Lepus capensis)were collected from shanxi and Shaanxi provincesin China during 1990-1993.According to the data of eye lens weight of 212 hares froman investigating site in February-October of 1991 and 1 510 hares from eight sites inhunting seasons and referring to the breeding information,we came to the conclusionthat 225mg may be as a criterion to distinguish animals under one-year-old from olderones. The proportion of juveniles increased with breeding season progress. In fall-winterpopulations,the hares born in the present year accounted for 86.3(72.2-93.5)%,which was clearly higher than those of the other species of the genus Lepus and was con-sidered to have relation to rising of the population amount in the study periods.Therewere 52.3%female in all 4 011 hares shot in fall-winter,52.4%in 1 226 juveniles and54.4%in 195 adults. 50.5%in 91 juveniles shot in February-September was female and58.2%in 91 adults.
Keywords:Cape hare(Lepus capensis)  Eye lens weight  Age composition  Sex ratio  
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