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  1. 010 学術雑誌論文
  2. 01 研究員発表論文
  3. 原野, 智広 / HARANO, Tomohiro

Water Availability Affects Female Remating in the Seed Beetle, Callosobruchus chinensis

https://ir.soken.ac.jp/records/3796
https://ir.soken.ac.jp/records/3796
9a676302-1492-4bde-8b80-24611e97146e
Item type 学術雑誌論文 / Journal Article(1)
公開日 2013-07-23
タイトル
タイトル Water Availability Affects Female Remating in the Seed Beetle, Callosobruchus chinensis
タイトル
言語 en
タイトル Water Availability Affects Female Remating in the Seed Beetle, Callosobruchus chinensis
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 HARANO, Tomohiro

× HARANO, Tomohiro

WEKO 1711

HARANO, Tomohiro

Search repository
著者別名 原野, 智広

× 原野, 智広

WEKO 1713

原野, 智広

Search repository
抄録
内容記述タイプ Abstract
内容記述 Benefits of multiple mating to females may come from the acquisition of water in male ejaculates. This hypothesis seems plausible in species in which males provide females with large ejaculates and has been tested with the prediction that females mate more frequently when an external source of water is unavailable. My study observed that females deprived of water were more likely to remate than females given water in the adzuki bean beetle, Callosobruchus chinensis. This result suggests that females may absorb the water in male ejaculates and thus change their remating receptivity according to the need for additional water. However, compared with related species, the ejaculate size is smaller, so ejaculatory hydration benefits are expected to be small in this species. There were no significant differences in lifetime fecundity and longevity between females that were allowed to receive one ejaculate from remating and females that were not allowed to do so when water was unavailable. This provides no evidence that receiving an additional ejaculate enhances female fitness. Thus, obtaining water from male ejaculates may partly compensate the costs of remating to females, although it alone would be insufficient to explain polyandry in C. chinensis. Increased mating frequency in water-deprived females would not necessarily support the hypothesis that females remate for ejaculatory hydration benefits.
書誌情報 Ethology
en : Ethology

巻 118, 号 10, p. 925-931, 発行日 2012-10
出版者
出版者 Wiley-Blackwell
ISSN
収録物識別子タイプ ISSN
収録物識別子 01791613
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.1111/j.1439-0310.2012.02084.x
関連名称 10.1111/j.1439-0310.2012.02084.x
権利
権利情報 © 2012 Blackwell Verlag GmbH
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