|
|
|
| Variations in home range of Callosciurus erythraeus during different breeding periods |
|
|
|
Abstract Studies of home range during the breeding season are important to understanding animal community relations, population dynamics,and reproductive strategies. We carried out research on variations in home range of Red-bellied squirrels (Callosciurus erythraeus)in a planted forest during March-December 2009,March-September 2010 in Hongya County,Sichuan Province. We employed the minimum convex polygon (MCP)method. The results indicated that:(1) The average size of male home ranges was 1.34 ± 0.34 hm2 ,which was significantly larger than the size of female home ranges (0.60 ± 0.08 hm2 )throughout the breeding season; (2)In the estrous period,male squirrels expanded their home ranges,possibly to increase female encounter rate,and thus increase mating numbers. However,the female home ranges remained steady and decreased significantly during pregnancy and the offspring raising period,which could be explained by the females’trade-off between energy intake and predation risk to increase the survival rate of offspring;(3) Throughout the breeding season,the home ranges overlapped between males,but not between females. The overlap of
home ranges between males and females could only be detected in the estrous period,indicating that females showed strong
territoriality in the breeding season.
|
|
|
|
|
|
| [1] |
CHEN Qianquan,QU Jiapeng,ZHANG Yanming. Variation in aggressive behavior of plateau pikas (Ochotona curzoniae) during different breeding seasons[J]. , 2013, 33(1): 63-67. |
| [2] |
YANG Jiandong，ZHANG Zejun，LI Ming，HU Jinchu，WEI Fuwen. Home range of red pandas (Ailurus fulgens) in Fengtongzhai Nature Reserve，Sichuan，China[J]. , 2006, 26(1): 13-17. |
| [3] |
LIU He, WANG Dehua, WANG Zuwang. ENERGY BUDGET STRATEGIES IN SMALL MAMMALS DURING REPRODUCTION[J]. , 2001, 21(4): 301-309. |
| [4] |
QUO Cong,WANG Yong,ZHANG Meiwen,CHEN Anguo. ANALYSIS ON THE COLONY STRUCTURE OF MICROTIOUS FORTIS IN DIFFERENT BREEDING SEASON IN DONGTING LAKE REGION[J]. , 2001, 21(1): 44-49. |
| [5] |
JIA Zhiyun, JIANG Zhigang, WANGZuwang. OBSERVATION ON THE BEHAVI0RS 0F MASKED PAIM CIVET IN REPRODUCTIVE SEAS0N[J]. , 2000, 20(2): 108-115. |
| [6] |
ZHANG Jianxu,ZHANG Zhibin,WANG Zuwang. BEHAVIORAL INTERACTIONS AND MATING BEHAVIOR OF RATLIKE HAMSTERS (CRICETULUS TRITON) DURING THE BREEDING SEASON[J]. , 1999, 19(2): 132-142. |
|
|
|
|
