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首页> 外文期刊>Ethology >Repeatability of Host Female and Male Aggression Towards a Brood Parasite
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Repeatability of Host Female and Male Aggression Towards a Brood Parasite

机译：宿主对雌性和雄性对雄性寄生虫侵略性的可重复性

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Current research on behavioural consistency showed that various types of animal behaviour are highly repeatable in the context of mate choice, exploration and parental care, including nest protection. However, the repeatability of aggressive nest defence has not yet been studied in hosts of brood parasites, although host aggression against adult parasites represents a crucial line of antiparasitic defences. Here, we investigated the between-season repeatability of the great reed warbler (Acrocephalus arundinaceus) aggression towards a stuffed dummy of the brood parasitic common cuckoo (Cuculus canorus). We found that under the relatively stable risk of brood parasitism across breeding seasons, female responses to the cuckoo were highly repeatable, whereas male responses were variable. We suggest that the potential explanation for the observed patterns of female and male behaviours may lie in female's prominent roles in offspring care and nest protection, and in her lower renesting potential in comparison with that of males. However, further studies on the relationship between host aggression and other types of behaviours (host personality) and their fitness consequences under the fluctuating parasitism pressures are required to clarify the adaptive significance of aggressive behaviour observed in hosts of brood parasites.
机译：当前对行为一致性的研究表明，在选择伴侣，探索和父母关怀（包括筑巢保护）的背景下，各种类型的动物行为都是高度可重复的。然而，尽管宿主对成年寄生虫的侵袭代表了抗寄生虫防御的关键路线，但尚未在雄性寄生虫宿主中研究侵略性巢防御的可重复性。在这里，我们调查了大芦苇莺（Acrocephalus arundinaceus）侵略到巢内寄生杜鹃（Cuculus canorus）假人的季节间可重复性。我们发现，在整个繁殖季节，在相对稳定的育雏寄生虫风险下，女性对布谷鸟的反应是高度可重复的，而男性的反应是可变的。我们建议，观察到的男女行为方式的潜在解释可能在于女性在后代照料和保护巢中的突出作用，以及其与男性相比较低的再造潜能。但是，需要进一步研究宿主侵略性与其他类型行为（宿主人格）之间的关系，以及在寄生虫压力不断波动下其适应性后果，以阐明在宿主寄生虫宿主中观察到的侵略行为的适应性意义。

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