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Kin-related Social Organization in a Winter Population of the Vole Clethrionomys rufocanus

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Title: Kin-related Social Organization in a Winter Population of the Vole Clethrionomys rufocanus
Authors: Ishibashi, Yasuyuki Browse this author →KAKEN DB
Saitoh, Takashi Browse this author →KAKEN DB
Abe, Syuiti Browse this author →KAKEN DB
Yoshida, Michihiro C. Browse this author →KAKEN DB
Keywords: communal nesting
microsatellite DNA
Issue Date: 1998
Publisher: Society of Population Ecology
Journal Title: Researches on population ecology
Volume: 40
Issue: 1
Start Page: 51
End Page: 59
Abstract: Kinship among gray-sided voles, Clethrionomys rufocanus, was investigated during the winter of 1992/93 in a 3-ha enclosure using both molecular and catch-mark-release techniques. Forty-six adult voles (22 males and 24 females) having high heterozygosities, which were collected from several natural populations, were released into the enclosure on 29 September 1992. Most fall-born individuals of both sexes stayed in their natal site during the non-breeding period (December-March), although reproductively active females dispersed during the fall breeding season (September-November). These philopatric individuals aggregated and formed an maternal family in the winter. Several females which failed to reproduce were solitary in this season. Some individuals which were derived from several families also aggregated into a mixed lineage group. Survival rate of fall-born voles from earlier litters was higher than that from later ones. Maternal families broke up quickly after the onset of spring reproduction. Most females established a territory near the wintering site and made a kin-cluster, in which close relatives neighbored each other. Maternal families in winter bring about female kin-clusters in spring, which may influence reproductive output in the breeding season.
Type: article
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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