中国科学院动物研究所,首都师范大学,首都师范大学,中国科学院动物研究所,中国科学院动物研究所,中科院动物所
农业虫害鼠害综合治理研究国家重点实验室开放课题（No. IPM1207），战略生物资源科技支撑体系运行专项（野生）动物实验平台运行补助经费项目
Institute of Zoology,Chinese Academy of Science, Beijing, China;,Captital normal University,Captital normal University,Institute of Zoology,Chinese Academy of Science, Beijing, China;,Institute of Zoology,Chinese Academy of Science, Beijing, China;,Institute of Zoology,Chinese Academy of Science, Beijing, China;
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达乌尔鼠兔是我国典型草原区的主要鼠种之一,对其繁殖特征知之甚少。作者于2009年7-11月和2010年4-9月在内蒙古典型草原区采用整洞群夹捕的取样方法捕获了199只达乌尔鼠兔(Ochotona dauurica),对其种群数量、性比、繁殖特征和年龄结构进行了研究。结果显示：2009年鼠兔数量118只,2010年81只；雌鼠数量显著多于雄鼠；达乌尔鼠兔的繁殖期为3-9月,高峰期集中在4-6月份,平均胎仔数为6.15±0.50(n=13)；2009年的7-9月幼年和亚成年比例均小于50%,成年个体成为种群的重要成分；2010年幼体主要集中在5-7月份,且6月和7月幼体和亚成体的数量超过了成年鼠兔的数量,8-9月份种群的主要成员为亚成年和成年鼠兔。达乌尔鼠兔种群繁殖特征是对草原环境适应的体现。
Daurian pika (Ochotona dauurica)is a key species in typical steppe, we know little about its reproduction. We analyzed the population size, sex ratio, reproduction and age structure of Daurian pika, captured in Abaga Qi, Xilinhot City, Inner Mongolia of China from 2009 to 2010. The results show that population size of 2009 (118) is larger than that in 2010(81); the sex ratio is biased to female in total; the breeding period of pika is among March to September and mainly in April to June every year, average litter size is 6.15±0.50 (n=13)；Juvenile and subadult occupy a small part in the population of July to September in 2009 and adults is dominant part; the juvenile and subadult are more than adults among June to July in 2010, and subadult and adult are main parts among August to September. In conclusion,the population reproductive parameters above are reflection of Daurian pika’s adaption to habitat in typical steppe.
引用本文
陈立军,张文杰,张小倩,贾举杰,刘伟,宛新荣.2014.典型草原区达乌尔鼠兔繁殖生态学的初步研究.动物学杂志,49(5):649-656.
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- 收稿日期:2013-12-17
- 最后修改日期:2014-06-26
- 录用日期:2014-05-04
- 在线发布日期: 2014-09-17
