黑线姬鼠种群空间格局的研究

黑线姬鼠(Apodemus agrarius Pallas)种群的空间格局属典型的聚集分布。集群在农田内为随机分布型。黑线姬鼠个体群具有明显的领域性和巢区范围,而同一家族或个体群内的个体之间却有相当的内聚力。黑线姬鼠种群的聚集强度是高密度,低聚集;低密度,高聚集。3-4月密度最低,聚集度最高,6-7月密度最高,而聚集度最低。

STUDY ON THE SPACE-STRUCTURE OF THE POPULATION OF Apodemus agrarius Pallas

The space structure of Apodemus agrarius population is a typical, cluster distribution in fields. Indiuiduals among the group contracting with each other to become a special group "indiuiduals-group" which distributes their demes in field at random. The individuals-group of Apodemus agraius has special character of territory and home range. The individuals contracte with one another within one family group. The cluster strengrh varies with population density, usually, it is in high densitg with poor aggregation and poor density with strong aggregation. Such condition can be seen from the season varied, such as in March to April, population density are very poor, but with strong aggregation. On the contrary, the population density is higher in June and July, but with weaker aggregation.