北京东灵山地区鼠类体外寄生蚤群落的研究

目的：研究北京东灵山地区鼠类体外寄生蚤类群落结构。方法：用群落生态学方法计算群落结构，多样性和相似性指数。结果：1998年6月至1999年5月在该地区的3类生镜中共采集到鼠类体外蚤类16种582匹。农田和灌丛中各类寄生蚤群落优势明显，均匀度较低，在森林却不明显，均匀度较高，窄板额蚤为黑线姬鼠和大林姬鼠蚤类群落优势种，曲鬃怪蚤为社鼠蚤类群落优势种；二齿新蚤为大仓鼠蚤类群落优势种；原双刘为棕背鼠平蚤类群落优势种。结论：主要鼠处体外寄生蚤类群落结构复杂，生物多样性指数较高。

Study on Flea Communities of the Rodent in Dongling Mountain in Beijing

Objective:To study the structure of flea communities of the rodents in Dongling Mountain, Western Beijing. Methods:A series of ecological methods were involved in this paper of community structure, diversity and similarity. Results:16 species of flea, 582 individuals were collected in three different ecological habitats from June 1998 to May 1999 in the region. In forest habitat, the dominant species of those communities are not very outstanding, while in the habitats of shrub and farmland, they quite outstanding. In flea communities, Frontopsylla nakagawai is dominant species for Apodemus agrarius and A.peninsulae, paradoxopsyllus curvispinus for Rattus niviventer, Neopsylla bidentatiformis for Cricetulus triton, Amphipsyllus primaries for Clethrionomys rufocanus. Conclusion:The structure of flea communities are complicated, with high diversity indexes.