Chines Journal of Vector Biology and Control ›› 2014, Vol. 25 ›› Issue (6): 542-545.DOI: 10.11853/j.issn.1003.4692.2014.06.015

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Effect of contraceptive compound EP-1 on populationreproduction of desert hamster Phodopus roborovskiiin Hunshandake Sandland, China

ZHANG Wen-jie1 ,2, ZHANG Xiao-qian1 ,2, WAN Xin-rong2, CHEN Wei1, LI Fu-sheng3, DENG Biao3,Hasibaolidao3, GONG He-ping3, BAO Hong-ming3   

  1. 1 College of Life Science, Capital Normal University, Beijing 100048, China; 2 State Key Lab of Integrated Managementof Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China;3 Forest Bureau of XilinGol LeagueC
  • Received:2014-07-12 Online:2014-12-20 Published:2014-12-20
  • Contact: CHENWei,Email:wlfeixiong@sohu.com

EP-1不育剂对浑善达克沙地小毛足鼠种群繁殖的影响

张文杰1 ,2,张小倩1 ,2,宛新荣2,陈卫1,李福生3,邓彪3,哈斯宝力道3,巩和平3,包洪明3   

  1. 1 首都师范大学生命科学学院, 北京 100048; 2 中国科学院动物研究所农业虫害鼠害综合治理研究国家重点实验室,北京 100101; 3 内蒙古锡林郭勒盟林业局
  • 通讯作者: 陈卫,Email: wlfeixiong@sohu.com
  • 作者简介:张文杰,男,硕士,从事动物生态学研究

Abstract: Objective To assess the effect of the EP-1 on the population reproduction of the desert hamster Phodopus roborovskii. Methods Baiting bags containing a mixture of wheat and contraceptive compound EP-1 were placed in the field of Hunshandake Sandland, Xilin Gol League, Inner Mongolia, in late April, 2003. Monthly live-trapping survey were conducted from June to October to investigate the impact of EP-1 on the reproductive parameters and structure of the P. roborovskii population. Results EP-1 did not influence the sex ratio of the P. roborovskii population during the breeding season. In the baited area, EP-1 resulted in a 70%-80% decline in the proportion of juvenile hamsters, which lasted over 4 months. EP-1 profoundly damaged the uteri of approximately 80% of adult female hamsters within 2 months and such impact lasted more than 5 months. In addition, EP-1 significantly reduced the average litter size, which was 1-3 times smaller in the baited area than in the control area. Conclusion In Hunshandake Sandland, a single delivery of EP-1 in spring is effective in controlling the population of P. roborovskii during the breeding season. However, the impact of EP-1 on the reproduction of P. roborovskii population declines over time, which may be explained by the dispersal behavior of P. roborovskii.

Key words: Phodopus roborovskii, Population reproduction, Fertility control, Hunshandake Sandland

摘要: 目的 检验EP-1不育剂对浑善达克沙地小毛足鼠种群繁殖的控制效果。方法 2003年4月下旬在内蒙古锡林郭勒盟浑善达克沙地,将配好的EP-1不育剂小麦诱饵装袋进行野外大田投撒实验,并在6-10月采用夹线法进行调查,分析EP-1不育剂对浑善达克沙地小毛足鼠种群繁殖参数与种群结构的作用。结果 在小毛足鼠的繁殖期,EP-1不育剂对小毛足鼠的种群性比无影响,EP-1不育剂会造成小毛足鼠种群幼鼠比例下降70%~80%,持续时间达4个月以上;EP-1不育剂会显著损伤小毛足鼠成年雌鼠的子宫,2个月内的损伤率可达80%,作用持续时间可达5个月以上;此外,不育剂还显著降低了小毛足鼠的胎仔数,投药区的平均胎仔数比对照组下降了1~3倍。结论 在浑善达克沙地,春季一次性投放EP-1不育剂,基本可抑制小毛足鼠种群在整个繁殖季节的繁殖成效。但EP-1不育剂对小毛足鼠的繁殖控制成效,也随着时间的推移逐渐下降,可能与沙地小毛足鼠种群间的扩散迁移习性有关。

关键词: 小毛足鼠, 种群繁殖, 不育控制, 浑善达克沙地

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