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种内及种间干扰对围栏内花鼠分散贮藏行为的影响

焦广强, 于飞, 牛可坤, 易现峰   

  1. 河南科技大学农学院,洛阳 471003
  • 出版日期:2011-03-02 发布日期:2011-03-02

Effects of intra- and inter-specific interference competition on scatter- hoarding behavior of Siberian chipmunk (Eutamias sibiricus) in semi- natural enclosures

JIAO Guangqiang,YU Fei,NIU Kekun,YI Xianfeng   

  1. College of Agriculture,Henan University of Science and Technology ,Luoyang 471003,China
  • Online:2011-03-02 Published:2011-03-02

摘要: 2009 年9 月在黑龙江省带岭区东方红林场10 m ×10 m 半天然围栏内模拟花鼠种内(不同性别) 和种间
(大林姬鼠) 干扰竞争对花鼠分散埋藏红松种子行为的影响。实验分四个处理两个批次进行,依次为单只花鼠对
照实验(雄性7 只,雌性9 只)、种内同性干扰竞争、种内异性干扰竞争和种间干扰竞争。结果表明:(1)花鼠
雌性个体的分散埋藏强度明显高于雄性个体;(2)种间干扰竞争引起花鼠对红松分散埋藏比例明显增加,而种
内干扰对花鼠分散埋藏行为的影响不显著;(3) 种内干扰竞争条件下,同性干扰竞争和异性干扰竞争对花鼠分
散埋藏行为均无显著影响;(4)雄性个体在同性干扰下,埋藏强度不变;而在雌性个体干扰竞争下,埋藏强度
增加;(5)雌性个体在雌性和雄性干扰条件下,花鼠分散埋藏行为均无明显变化。

关键词: 围栏, 红松, 花鼠, 干扰竞争, 分散贮藏

Abstract: The effects of intra- (different gender)and inter-specific (Apodemus penisulae) interferences on scatter-hoarding behavior of Siberian chipmunk (Eutamias sibiricus) were investigated in 10 m × 10 m semi-natural enclosures in Heilongjiang province in September 2009. Four treatments were established and performed within two batches, i. e. , control group with single chipmunk;intraspecific intrasexual interference competition;intraspecific inter-sexual interference competition; and inter-specific interference. Our results showed that:(1) Female chipmunks scatter-hoarded more seeds than did males; (2) Inter-specific interference by A. penisulae significantly increased seed scatter-hoarding by chipmunks, while intra-specific interference showed no influence;(3 ) Both intra- and inter-sexual interference showed no effect on scatter-hoarding of chipmunks;(4) Male chipmunks scatter-hoarded more seeds when interfered by females,but did not change when interfered by males;(5) Both inter-and intra-sexual competitions showed no significant influence on scatterhoarding of female individuals.

Key words: Eutamias sibiricus, Interference competition, Pinus koraiensis, Scatter-hoarding, Semi-natural enclosure