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Female-female cooperation in polygynous oystercatchers

机译:雌雄同体在多生蚝捕捞者中的合作

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摘要

Waders (Charadrii) provide biologists with an astonishing variety of mating systems to study. Male and female birds establish breeding units in which behaviour varies from monogamy, polygyny, polyandry, double clutching, kicking and serial monogamy to sex role reversal, and many mixed mating systems exist. This diversity is currently explained by the costs and benefits of males and females either cooperating or defecting during breeding attempts. The oystercatcher (Haematopus ostralegus) is a typically monogamous species: removal experiments show that both parents are needed to raise chicks to fledgings. However, occasional polygyny has also been reported. Here we describe polygynous oystercatcher trios and the reproductive consequences of such polygyny. There is a 'classical' form of polygyny (two female territories within the male territory), but oyster-catchers also show a remarkable variant, accompanied by female-female cooperation, female-female copulations and joint nesting.
机译:沃德斯(Charadrii)为生物学家提供了多种多样的交配系统供研究。雄鸟和雌鸟建立了繁殖单位,其行为从一夫一妻制,一夫多妻制,一妻多夫制,双抓制,踢kick和一夫一妻制到性角色互换,并存在许多混合交配系统。当前,这种多样性可以通过雄性和雌性在育种尝试中合作或背叛的成本和收益来解释。蛎cat(Haematopus ostralegus)是典型的一夫一妻制物种:清除实验表明,需要父母双方共同饲养小鸡才能成雏。然而,偶尔也有一夫多妻制的报道。在这里,我们描述了一夫多妻制的牡蛎捕捞者和这种一夫多妻制的繁殖后果。一夫多妻制有“古典”形式(雄性领土内有两个雌性领土),但牡蛎捕捞者也表现出显着的变异,伴有雌-雌合作,雌-雌交配和联合筑巢。

著录项

  • 来源
    《Nature》 |1998年第6668期|p.687-691|共5页
  • 作者

    Dik Heg; Rob van Treuren;

  • 作者单位
  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然科学总论;
  • 关键词

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