Epidemiological significance on the community structures of host animals in Yulong natural plague foci, Yunnan Province,China
SHAO Zong-ti1, GAO Zi-hou1, ZHANG Chang-guo2, PU En-nian1, DUAN Xing-de1, LIU Zheng-xiang1, SU-Chao2, DUAN Biao1, HE Ying-tian3, HE Qiong-guang3, SONG Zhi-zhong1
1.Yunnan Institute of Endemic Diseases Control and Prevention, Provincial Key Laboratory for Zoonosis Control and Prevention, Yunnan Center of Plague Control and Prevention, Dali 671000, China; 2.School of Public Health, Dali University, Dali 671000, China; 3.Yulong Center for Disease Control and Prevention, Lijiang 674100,China
Abstract：We explored the relationship between the community structure and distribution pattern of host animals and the epidemic of animal plague in Yulong plague natural foci. The forest and agricultural area are two habitats in four altitude gradients were selected for sample plots in core area of Yulong natural plague foci. Small mammals were investigated by using community ecology techniques every quarter in 2015. The spatial distribution and seasonal variation of small mammals host were analyzed with the community ecological indexes. The animal plague characteristics were analyzed by using descriptive epidemiology. A total number of 1 575 small mammals which belong to 22 species, 12 genera, 6 families and 4 orders were investigated. The average capture rate of small mammals was 19.84%. The dominant species of small mammals were Apodemus chevrieri, Eothenomys miletus and Apodemus draco, the composition ratio were 44.19%, 19.37% and 14.35% respectively. The difference of capture rate of small mammals were statistically significant between different habitats, different altitudinal gradients and different seasons. The density of small mammals in cultivated land was higher than that in forestland. The capture rate of small mammals in cultivated land were 40.12% and 27.85% respectively in the IV altitudinal gradients(3 100 m-)and in spring, which were the highest that the altitudinal gradients distribution and the seasonal distribution of small mammals in different habitats. The diversity index and evenness index of small mammals communities in forestland was higher than cultivated land, while the dominance index was lower. The diversity index and evenness index decreased with the increase of altitude, and increased with the seasonal variation as Spring-Summer-August-Winter order. On the contrary, the dominance index increased with the increase of altitude, and decreased with the seasonal variation. The difference of the species richness, the diversity index and the dominance index in different altitudinal gradients were not statistically significant between two habitats. The difference of the diversity index, the evenness index and the dominance index in different seasons were statistically significant between two habitats. The peak seasons for animal plague were April to May. The distribution of epidemic points were mainly in cultivated land of the IV altitudinal gradients (3 100 m-). The community structure of small mammals had its complexity in Yulong natural plague foci. There was a greater heterogeneity of the distribution of small mammals community in different habitats, different altitudinal gradients and different seasons. The community structure features of small mammals were closely related with the epidemiological characteristics of animal plague.
邵宗体, 高子厚, 张长国, 浦恩念, 段兴德, 刘正祥, 苏超, 段彪, 和映天, 和琼光, 宋志忠. 云南玉龙鼠疫疫源地宿主动物群落结构特征及其流行病学意义[J]. 中国人兽共患病学报, 2018, 34(9): 845-849.
SHAO Zong-ti, GAO Zi-hou, ZHANG Chang-guo, PU En-nian, DUAN Xing-de, LIU Zheng-xiang, SU-Chao, DUAN Biao, HE Ying-tian, HE Qiong-guang, SONG Zhi-zhong. Epidemiological significance on the community structures of host animals in Yulong natural plague foci, Yunnan Province,China. Chinese Journal of Zoonoses, 2018, 34(9): 845-849.
2018, Vol. 34 
