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首页> 外文期刊>The Emu >High levels of extra-pair paternity in Superb Fairy-wrens in South Australia despite low frequency of auxiliary males
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High levels of extra-pair paternity in Superb Fairy-wrens in South Australia despite low frequency of auxiliary males

机译：尽管辅助男性的发生率较低，但南澳大利亚州精湛的童话wr族的父母对亲子陪伴率很高

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摘要

The Superb Fairy-wren (Malurus cyaneus) is a model system in which to study cooperative breeding and extra-pair paternity. Previous studies in this species have shown that 61-76% of nestlings were extra-pair young and 92-95% of nests contained at least one extra-pair young. Furthermore, the probability of extra-pair paternity was higher when auxiliary males were present. We studied group size and extra-pair paternity in South Australia where, unlike other study sites, auxiliary males were relatively uncommon: 16% of nests had one auxiliary male compared to 37-80% with at least one auxiliary per nest in other studies. We predicted a lower incidence of extra-pair paternity, given the shortage of auxiliary males. Our results did not support this prediction: we found extra-pair paternity among 67% of nestlings and 83% of nests.
机译：精湛的神仙Ma（Malurus cyaneus）是一个模型系统，用于研究合作繁殖和超配对亲子关系。该物种先前的研究表明，有61-76％的雏鸟是成对的幼鸟，而92-95％的鸟巢中至少有一对成对的幼鸟。此外，当有辅助男性时，父母对父母陪伴的可能性更高。我们在南澳大利亚州研究了群体规模和成对父母陪伴，与其他研究地点不同，辅助雄性相对不常见：在其他研究中，有16％的巢有一个辅助雄性，而每个巢中至少有一个辅助的有37-80％。考虑到辅助男性的短缺，我们预测外对亲子关系的发生率会降低。我们的结果不支持这一预测：我们在67％的雏鸟和83％的雏鸟中发现了成对的父子关系。

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