NDLI: Seasonal forcing on the dynamics ofClethrionomys rufocanus: Modeling geographic gradients in population dynamics

Content Provider	Springer Nature Link
Author	Stenseth, Nils Chr Bjørnstad, Ottar N. Saitoh, Takashi
Copyright Year	1998
Abstract	We interpret gradients in population dynamics of the gray-sided vole from the southwestern part of the island of Hokkaido to its northeastern part within the framework of a phenomenological model involving the relative length of summer and winter. In Hokkaido, as in other northern regions, both spring and fall is considered as short transition periods between the two main seasons — summer (the primary breeding season) and winter (the non-reproductive or secondary breeding season). We show that the geographic transition in dynamics may be understood as the combined consequence of different patterns of density-dependence during summer and winter, and geographically varying season lengths. Differences are shown to exist between summer and winter with respect to strength of density-dependence. Direct density-dependence, in particular, is stronger during winter than during summer. A model is presented to show how relative lengths of seasons can induce both stable and periodically fluctuating population dynamics. The results are compared and contrasted with what is otherwise known about the gradient in rodent dynamics in Fennoscandia.
Starting Page	85
Ending Page	95
Page Count	11
File Format	PDF
ISSN	00345466
Journal	Population Ecology
Volume Number	40
Issue Number	1
e-ISSN	14375613
Language	English
Publisher	Springer-Verlag
Publisher Date	1998-01-01
Publisher Place	Tokyo
Access Restriction	Subscribed
Subject Keyword	density-dependence length of summer and winter phenomenological model seasonal and annual dynamics the gray-sided vole Ecology Zoology Plant Sciences Evolutionary Biology Behavioural Sciences Forestry
Content Type	Text
Resource Type	Article
Subject	Agricultural and Biological Sciences

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