关键词: 鼠形动物, 种群, 繁殖力, 妊娠率

Abstract: Objective In order to know the propagation of rodents to provide scientific basis for rodents control,an analysis was carried out at Guangzhou Baiyun International Airport during Octobar of 2003 to September of 2004. Methods Rodentswere caught with clips and cages once a month and were dissected for propagation situation after identification. Results A total of 828 rodents were caught,and subordinate to 2 orders 2 familis 4 genera 7 species. The male was 429,and the female was 399. Inverse proportion was 1∶1.075. The number of pregnancy rodents was 118. And the pregnancy rate was 29.57%. The total embryo was 497. The averagy was 4.21. There were four peak periods of propagation in the year,March,April,June and Septemper. Propagator of Suncus murinus was 39.20%,which was the heighest. There was different propagator in different envtironment. The course area was 34.13%,life area was 28.75%,office area was 23.40%,freight area was 30.30%. Conclusion The results showed that rodents can propagate all year at Guangzhou Baiyun International Airport. The propagation peak period was spring and summer. And there was a little peak period in the end of autumn. There was no correlation ship between propagation and density of rodents.