青海省海东地区鼠形动物种群调查

Population investigation of the rat-shape animals at haidong district of Qinghai province

目的掌握海东地区鼠形动物的种群结构及其密度,为预防鼠害和鼠传疾病的发生提供基础资料。方法在不同的海拔段选取不同的生境布夹进行调查。结果海东地区共捕获鼠形动物445只,隶属3目7科19种,平均捕获率为3.46%,其中在林缘灌丛和2 800~3 000 m的海拔段中捕获率最高,分别为4.81%和8.13%。结论青海海东地区鼠形动物种类多,密度高,以华北区的种类占优势,主要集中分布在海拔2 400~3 200 m之间,其中以林缘灌丛带数量最多,高山草原和农田居民区带数量较少。

Objective To grasp the population constitution of the rat-shape animals and density at Haidong district,prevent the damage of the rodent and rodent-borne diseases to human,and to provide the science evidence for forecast.Methods Segment elevation in different altitude to select different habitats clips for investigation.Results There were 445 rat-shape animals captured at haidong district,belonging to 19 species,7 families and 3 orders captured at haidong district,and the average capturing rate was 3.46%,which in the forest edge shrub and an altitude of 2800 to 3000 m the capturing rate was highest,which were 4.81% and 8.13%.Conclusions Rat-shape animals have many kinds and high density in Haidong district of Qinghai province,with the prominency of species of North China,mainly distributed at an altitude of 2400 to 3200 meters,of which the largest number of forest edge shrub,alpine grasslands and farmland with a small number of residential areas.