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白城——北大岗鼠疫监测区及边缘地带是历史鼠疫动物病高发区之一,为认识其鼠疫动物病演变规律,仅就该区1983—1986年资料加以分析。在该区内相继开展了历年不同生境黄鼠密度,历年不同月份黄鼠密度、黄鼠性别、年龄构成、小型鼠类数量消长、鼠类体表、洞干蚤类指数及病原调查。结果发现,主要宿主黄鼠密度四年间波动在0.7—1.1只/公顷之间,其中以1986年黄鼠密度为
Baicheng - Bei Dagang plague surveillance area and its fringe area is one of the high incidence areas of historical plague zoo animal disease. In order to know the evolution law of its plague zoonosis, the data of 1983-1966 in this area were analyzed. In this area, the density of chrysalis in different habitats over the years, the density of chondrichthyes in different months, the sex and age composition of chondrules, the growth and decline of the number of small mice, the body surface, the dry-hole flea index and pathogen investigation were successively investigated. The results showed that the density of the main host spermophilus fluctuated between 0.7-1.1 ha-1 in four years. Among them, the density of squirrel in 1986 was