森林生态系统中5种啮齿动物秋季时间生态位  

Research on Autumn Time Niche of Five Rodents in Forests Ecosystem

作　　者：杨春文[1] 马建章[1] 金建丽[2] 刘铸[2] 

机构地区：[1]东北林业大学野生动物资源学院,哈尔滨150040 [2]牡丹江师范学院,牡丹江157012

出　　处：《动物学杂志》2008年第2期64-69,共6页Chinese Journal of Zoology

基　　金：黑龙江省科技攻关项目(No.PC06S03)

摘　　要：为探讨森林啮齿动物共存机制,于2006年9月,在黑龙江省海林林区,采用标志重捕法和室内饲养观察法研究了松鼠(Sciurus vulgaris)、花鼠(Eutamias sibiricus)、大林姬鼠(Apodemus peninsular)、棕背(Myodes rufocanus)和红背(M.rutilus)时间利用生态位以及种间的生态位叠度,分析了在资源利用时间上的分化。结果表明,这5种动物分化为白天活动和以夜间活动为主的两种生态类型。白天活动的松鼠、花鼠生态位宽度较窄,分别为0·679、0·618。以夜间活动为主的棕背、红背、大林姬鼠的生态位宽度较宽,分别为0·935、0·853、0·844。两种类型间竞争较小,生态位叠度指数在0·286以下。同一类型内种间生态位叠度指数较高,在0·711以上,为了减少竞争,同一类型内种间错开活动高峰时间或延长活动时间。To research the coexistent mechanism of 5 kinds of rodents in Hailin region of Heilongjiang Province in september, 2006, we investigated the niche widths of time and the niche overlaps of Sciurns vulgaris, Eutamias sibiricus, Apodemus peninsulae, Myodes rufocanus, M. rutilus with the method of tagging-recapture and indoor observing. Then we analysised the time differentiation of their resources utilization. The results indicated that the phenomena can be divided into two types ： the nocturnal ones and the diurnal ones. Niches widths of diurnal ones such as S. vulgaris and E. sibiricus are relatively narrow. They are separately 0.679 and 0.618. On the contrary, the niche widths of the nocturnal ones such as M. rufocanus, M. rutilus, A. peninsular are wider. They are separately 0.935, 0.853, 0.844. The competition between the two species is small. And the niche overlap index is under 0.286, however the competition among the same species is great, and the niche overlap index is over 0.711.To reduce ac, we stagger their activity fastigiums or prolong their activity time to reduce the competition between the different species of the same type.

关 键 词：啮齿动物 时间生态位 

分 类 号：Q958[生物学—动物学]