关键词: 长爪沙鼠, 贮食活动, 迁移, 种子食物的可获得性, 行为管理, 生态治理

Abstract: Characteristics of storing food and migration were measured in a wild low-density (16-22 hm²) population of Mongolian gerbils (Meriones unguiculatus ) during autumn harvest. Investigating food storehouse in different farmland with different rate of harvest progress, the authors found Mongolian gerbils in the farmlands in which crop were reaped late and piled for long time ( > 14 d) stored more grain than grass seeds. So did not individuals in the farmlands in which crop were reaped early and piled for a little time (<7 d). There were two space behavioral patterns. One was initiative migration that Mongolian gerbils immigrated to farmland during the crop maturing in autumn (about early September), and the other was coercive migration that individuals emigrated from farmland when farmlands were ploughed. By the mark-recapture technique to census the population in sample plots, it was found that the direct evidence on the autumn initiative migration of Meriones unguiculatus. These behavioral characteristics closely combined with seeds-food availability in cultivated field in autumn and local agricultural measures. To make rational use of local to possibly decrease the resource of seed food of gerbils in farmland, emphatically disturbed gerbils’ food store activity and migration were important strategies of behavioral management for acquiring the continuous ecological control benefit.

Key words: Mongolian gerbil (Meriones unguiculatus), Storing food, Migration, Seeds-food availability, Behavioral management, Ecological control