Effects of acorn abundance on density dependence in a Japanese wood mouse (Apodemus speciosus) population

この論文にアクセスする

この論文をさがす

著者

抄録

We analysed the effects of Quercus crispula acorn abundance on the density dependence of the large Japanese wood mouse Apodemus speciosus using time series data (1992-2007). The data were obtained in a forest in northern Hokkaido, Japan, by live-trapping rodents and directly counting acorns on the ground. Acorn abundance in one year clearly influenced the abundance of wood mice in the following year in all models examined based on the Gompertz and Ricker model; in addition, the abundance of wood mice had effects on the population. Acorn abundance influenced the strength of density dependence (intraspecific competition) of the wood mouse population. When the abundance of acorns was high, density dependence was relaxed, and as a result the equilibrium density at which the population growth rate decreased to zero became higher. Those effects of acorn abundance were regarded as a nonlinear perturbation effect (sensu Royama 1992). The nonlinearity of density dependence was also detected; higher densities had stronger effects on population growth rates.

収録刊行物

  • Population ecology  

    Population ecology 50(2), 159-167, 2008-04-01 

    Springer Japan

参考文献:  51件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

被引用文献:  2件

被引用文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10021067333
  • NII書誌ID(NCID)
    AA1145561X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    14383896
  • NDL 記事登録ID
    9440956
  • NDL 雑誌分類
    ZR4(科学技術--生物学--動物)
  • NDL 請求記号
    Z53-S128
  • データ提供元
    CJP書誌  CJP引用  NDL  IR 
ページトップへ