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《Chinese Journal of Zoology》 2002-01
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Daily Activity Rhythms of Yangtze Vole

HU Zhong-Jun ① GUO Cong ① WANG Yong ① ZHANG Mei-Wen ① CHEN Zhi-Quan ②(①Changsha Institute of Agricultural Modernization, Chinese Academy of Science Changsha 410125;②College of Plant Science and Technology, Hunan Agricultural University Ch  
The daily activity rhythm of 9 pairs of adult Yangtze vole was studied under seminatural conditions from Apr. to Jul. in 1999. Ten times of observations were made. Both in the daytime and at night, the animals showed active behaviors out of nest and exhibited two activity peaks around the time period of sunrise and sunset respectively. The out-nest activity level at night was conspicuously higher than that in the daytime. There were no significant differences in the amount of time on feeding and drinking for animals between daytime and night. The mean activity amounts of out-nest, feeding and drinking of females were(10*!850±3*!510), (1*!103±643) and (960±504) seconds, and which of males were (11*!423±6*!059), (1*!293±733) and (1*!201±561) seconds respectively;the average frequencies of enter-exiting nest, feeding and drinking of females were (68.6±36.2), (11.8±5.9) and (15.6±5.7) times, and which of males are (47.6±19.0), (8.9±4.1) and (15.3±6.1) times respectively;there are no significant differences in the amounts and frequencies of the three activities between males and females. In addition, there were (10.442±5.249) hours male and female cohabit in a same nest.
【Key Words】: Microtus fortis calamorum Activity rhythm Seminatural condition
【Fund】: 国家“九五”科技攻关项目 (No.96 A2 3 0 6 0 4)专题 ;; 中国科学院知识创新项目 (No .KSCX2 SW 10 3)资助
【CateGory Index】: Q958.12
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