关键词: 布氏田鼠, 社群结构, 序位

Abstract: The fluctuation of structure colonies and social orders of Brandt’s vole are studied. It is obviously that change of colony structure fluctuate in different seasons. The structure of colony is fluctuation in breeding period and it is more stable relatively in storing period. There are 2 peaks of fluctuation, one is in breeding prophase and other is in breeding peak period. The former is migration of adult and elder males mainly. The latter is migration of subadults mainly. But the members of colonies are steady relatively in storing period. The order in the colonies have 2 or 3 class in a colony that are dominant, 2nd dominant and lackey. Some colonies lack 2nd dominant. The class can be recognized with feeding, crowding and building nest contending and soon. The dominant is elder female mainly. More 50% lackeys raise class and about 30% dominants can keep them class in strange colony at breeding period. At non-breeding period the competition meet repel in strange colony. It is decrease t he proportion of getting higher class evidently.

Key words: Brandt's vole (Microtus brandti), Colonial sucture, Order