摘要
1993年5～11月份、1999年4～10月份和2006年的5～11月份,在地处晋西南的隰县阳头升乡竹干村和后堰村,以铗捕率或笼捕率的变化作为衡量种群数量的标准,开展了对社鼠(Rattus confucianus sacer)种群数量季节消长的研究。结果表明,社鼠种群数量存在着明显的季节变化,主要是繁殖和死亡两大因素相互作用的结果。种群每年在9月份出现一次数量高峰,由5、6、7、8月份的繁殖行为形成。10月份以后,由于气候和食物等条件恶化,致使部分鼠体死亡,特别是上一年越冬鼠的大量死亡,使社鼠种群数量随之下降。
The seasonal variations of Rattus confucianus sacer community in Yangtousheng Countryside,Xi County,Southwest of Shanxi Province was studied from May to November in 1993,April to October in 1999 and May to November in 2006,through compare of rate of capture by cages and clips.The results were as follow: the quantity of Rattus confucianus sace community had obvious seasonal variations because of the influence of two mainly factors such as reproduction and death.The quantity peak of the community appeared in ...
出处
《山西农业科学》
2007年第8期33-34,共2页
Journal of Shanxi Agricultural Sciences
基金
中日政府间合作项目
国家科技攻关项目(2005BA529A05)
山西省资助回国留学人员项目(2003-92)
山西省科技攻关项目(2006031049)
山西农科院攻关项目(YGG0406
YGG06021)
关键词
社鼠种群
捕获率
季节消长
Rattus confucianus sacer community
Capture rate
Seasonal variations
