• 论文 •

### 长爪沙鼠的贮食行为与其个性和代谢水平之间的关系

1. （1 中国科学院动物研究所，农业虫害鼠害综合治理研究国家重点实验室，北京 100101）（2 中国科学院生物互作卓越创新中心，中国科学院大学，北京 100049）
• 出版日期:2020-07-30 发布日期:2020-07-24
• 通讯作者: 王德华 E-mail: wangdh@ioz.ac.cn
• 基金资助:
国家自然科学基金项目（31470474，31872232）

### The relationship between hoarding behavior and personality and metabolism in Mongolian gerbils（Meriones unguiculatus）

TIAN Shuangjie 1,2, ZHANG Xueying 1,2, LIU Wei 1,2, WANG Dehua 1,2#br#

1. (1 State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China)
(2 CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Science, Beijing 100049, China)
• Online:2020-07-30 Published:2020-07-24

Abstract: Food hoarding is an adaptive strategy in animals to cope with the seasonal and unpredictable changes of food resources. In group-living animals, the siblings usually show different food hoarding behaviors, but the relationship between food hoarding behavior and personality and metabolism has not yet been studied. In this study, we selected Mongolian gerbil (Meriones unguiculatus) with high and low food hoarding behavior, and compared the personality (boldness and exploration), resting metabolic rate, serum thyroid hormones, locomotion distance during food hoarding and average daily metabolic rate after food hoarding of these two groups. Our results showed that the amount of gerbils with high and low food hoarding behavior accounted for 49% (22/45) and 47% (21/45), respectively. Results of this study did not show significant differences in personality, resting metabolic rate and serum thyroid hormones between these two groups. Moreover the movement distance of the high food-hoarders was significantly longer than that of the low food-hoarders during the hoarding period, and the average daily metabolic rate after hoarding in the high food-hoarding group was significantly lower than that in the low food-hoarding group. These findings indicate that the food-hoarding behavior of gerbils in the laboratory condition did not related to the personality and resting metabolic rate, and the high food hoarders would reduce the total energy consumption after food hoarding to compensate the high energy cost during the food hoarding period.