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Effects of acorn masting on population dynamics of three forest-dwelling rodent species in Hokkaido, Japan

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Title: Effects of acorn masting on population dynamics of three forest-dwelling rodent species in Hokkaido, Japan
Authors: Saitoh, Takashi Browse this author →KAKEN DB
Osawa, Jun Browse this author
Takanishi, Toshikazu Browse this author
Hayakashi, Shintaro Browse this author
Ohmori, Masaaki Browse this author
Morita, Toshio Browse this author
Uemura, Shigeru Browse this author
Vik, Jon Olav Browse this author
Stenseth, Nils Chr. Browse this author
Maekawa, Koji Browse this author
Keywords: Apodemus argenteus
Apodemus speciosus
Clethrionomys rufocanus
Density dependence
Quercus crispula
Issue Date: Jul-2007
Publisher: Springer Japan
Journal Title: Population Ecology
Volume: 49
Issue: 3
Start Page: 249
End Page: 256
Publisher DOI: 10.1007/s10144-007-0041-9
Abstract: The effects of acorn (Quercus crispula) abundance on the population dynamics of three rodent species (Apodemus speciosus, A. argenteus, and Clethrionomys rufocanus) were analyzed using time series data (1992–2006). The data were obtained in a forest in northern Hokkaido, Japan, by live trapping rodents and directly counting acorns on the ground. Apodemus speciosus generally increased in abundance following acorn masting. However, the clear effect of acorn abundance was not detected for the other two rodent species. Acorns of Q. crispula contain tannins, which potentially have detrimental effects on herbivores. Apodemus speciosus may reduce the damage caused by acorn tannins with tannin-binding salivary proteins and tannaseproducing bacteria, whereas such physiological tolerance to tannins is not known in the other two rodent species. The differences in the effects of acorns between the three species may be due to differences in their physiological tolerance to tannins.
Rights: The original publication is available at
Type: article (author version)
Appears in Collections:北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 齊藤 隆

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