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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Social monogamy in mammalian species ： ウィキペディア英語版 Social monogamy in mammalian species Monogamous Pairing refers to a general relationship between an adult male and an adult female for the purpose of sexual reproduction. It is particularly common in birds, but there are examples of this occurrence in reptiles, invertebrates, fish, amphibians, and mammals. == Monogamy in mammals == Social monogamy in mammals is defined as a long term or sequential living arrangement between an adult male and an adult female (heterogeneous pair). It should not be confused with genetic monogamy, which refers to two individuals who only reproduce with one another. Social monogamy does not describe the sexual interactions or patterns of reproduction between monogamous pairs; rather it strictly refers to the patterns of their living conditions.〔 This arrangement consists of, but is not limited to: sharing the same territory; obtaining food resources; and raising offspring together. A unique characteristic of monogamy is that unlike in polygamous species, parents share parenting tasks. Even though their tasks are shared, monogamy does not define the degree of paternal investment in the breeding of the young. Only ~3-5% of all mammalian species are socially monogamous, including some species that mate for life and ones that mate for an extended period of time.〔 Lifelong monogamy is very rare; however, it is exemplified by species such as the prairie vole, ''Microtus ochrogaster''.〔 A vast majority of monogamous mammals practice sequential social monogamy where another male or female is accepted into a new partnership in the case of a partner’s death.〔 In addition, there are some species that exhibit short-term monogamy which involves partnership termination while one's partner is still alive; however, it lasts for at least one breeding season.〔 Monogamy usually does not occur in groups where there is a high abundance of females, but rather in ones where females occupy large ranges.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Social monogamy in mammalian species」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.