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

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

Content Provider	Springer Nature Link
Author	Saitoh, Takashi Vik, Jon Olav Stenseth, Nils Chr. Takanishi, Toshikazu Hayakashi, Shintaro Ishida, buo Ohmori, Masaaki Morita, Toshio Uemura, Shigeru Kadomatsu, Masahiko Osawa, Jun Maekawa, Koji
Copyright Year	2008
Abstract	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.
Starting Page	159
Ending Page	167
Page Count	9
File Format	PDF
ISSN	14383896
Journal	Population Ecology
Volume Number	50
Issue Number	2
e-ISSN	1438390X
Language	English
Publisher	Springer Japan
Publisher Date	2008-02-13
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Dynamics Intraspecific competition Lateral perturbation effect Masting Nonlinear density dependence Nonlinear perturbation effect Forestry Behavioural Sciences Evolutionary Biology Plant Sciences Zoology Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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

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Isolation and characterization of 25 polymorphic microsatellites of the large Japanese wood mouse (Apodemus speciosus)

Does acclimation reduce the negative effects of acorn tannins in the wood mouseApodemus speciosus?

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

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