云南大理市小型哺乳动物种群结构的研究

Study on the Population Composition of the Small Mammals in Dali Yunnan

目的 :研究云南省大理市小兽类种群结构。方法 :2 0 0 0年 10月至 2 0 0 2月 5月 ,在不同生境采用捕鼠笼、鼠夹、电子捕鼠器等工具捕捉小兽 ,研究小兽种群结构。结果 :捕获小兽 3目 6科 13属 2 3种 ,共 113 2只。室外生境捕获小兽 3目 2 3种 ,以齐氏姬鼠和大绒鼠为常见种 ,分别占 2 7.3 8%和 16.15 %。室内生境捕获小兽 2目 3种 ,褐家鼠为优势种 ,占 72 .2 0 % ,黄胸鼠次之 ,为 2 7.41%。结论 :室内。

Objective: To study the population structure of the small mammals in Dali, Yunnan. Methods: Small mammals were captured by mouse-trap in different habitats from October 2000 to May 2002. Results:1 132 small mammals were captured. They were identified as 23 species, belonging to 13 genera, 6 families, 3 orders. Twenty-three species of small mammals were captured outdoor, A.chevrieri and E.miletus were the dominant species, its constuent ratio were 27.38% and 16.15% respectively. Three species were captured inside house, the dominant species were R. norvegicus and R. flavipectus, its constuent ratio were 72.20% and 27.41% respectively. Conclusion:The population structure of small mammals was much different from indoor to outdoor habitats.