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首页> 外文OA文献 >The relationship between the presence of satellite males and nest-holders' mating success in the azorean rock-pool blenny Parablennius sanguinolentus parvicornis
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The relationship between the presence of satellite males and nest-holders' mating success in the azorean rock-pool blenny Parablennius sanguinolentus parvicornis

机译：卫星雄性的存在与巢穴配偶的成功交配之间的关系在亚速尔群岛的岩石水池中，粘鱼（parennynnius sanguinolentus parvicornis）

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摘要

In the Azorean rock-pool blenny, sexually active males may adopt alternativereproductive tactics. In the present paper the relationship between the presence ofsatellite males and the reproductive success of nest-holders was investigated bycomparing nests with and without an associated satellite male. Males with anassociated satellite male suffered more conspeci®c intrusions but they did notdisplay a higher frequency of attacks towards conspeci®cs. Nest-holder maleswere more aggressive towards other conspeci®cs than towards satellites and thetolerance of nest-holders towards satellites was inversely correlated with the timespent by the satellites in the breeding territory, which suggests control by the nest-holder male of the satellite investment in shared territorial defence. Nest-holderswith an associated satellite male had higher condition factors and received morefemale visits and more spawnings. These results bear two possible interpretations.(1) Nest-holders bene®t from the presence of a satellite male by increasedattractiveness of their nests to females; satellite males are mutualists helping todefend the nest-owner's territory and to attract females, which is why they aretolerated. (2) Satellite males associate preferentially with more successful nest-holder males which have higher condition factors, and by doing so have moreopportunities to achieve parasitic fertilizations. Only experiments will allow thesetwo hypotheses to be distinguished.
机译：在亚速尔群岛的石滩布兰妮，性活跃的男性可能会采用其他生殖策略。在本文中，通过比较有无伴生卫星雄性的巢，研究了雄性卫星的存在与巢座繁殖成功之间的关系。具有相关联的卫星雄性的雄性遭受了更多的特定入侵，但是他们没有表现出更高的针对特定攻击的频率。巢座雄性在其他方面比卫星更具侵略性，而巢座雄性对卫星的容忍度与繁殖区域中卫星的时间成反比，这表明巢座雄性对卫星投资的控制。共同的领土防卫。伴有相关卫星雄性的巢穴拥有者较高的条件因子，并获得更多的雌性造访和更多产卵。这些结果有两种可能的解释。（1）巢穴持有人受益于卫星雄性的存在，其巢穴对雌性的吸引力增加；卫星雄性是共产主义者，有助于捍卫巢主的领土并吸引雌性，这就是为什么他们被容忍的原因。 （2）卫星雄性优先与条件因子较高的更成功的筑巢雄性结合，这样做有更多的机会实现寄生受精。只有实验才能区分这两个假设。

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