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首页> 外文期刊>Behaviour >The function of breeding season chip calls by female hooded warblers (Wilsonia citrina)
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The function of breeding season chip calls by female hooded warblers (Wilsonia citrina)

机译：雌性戴兜帽的莺（Wilsonia citrina）繁殖季节筹码的功能

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摘要

We document use of 'chip' vocalizations by breeding female hooded warblers (Wilsonia citrina) and propose explanations for the function of the calls. Fertile females (building or laying stage) chip differently than incubating females, via a lower chip rate, shorter bouts of chipping and more bouts per hour. Females responded to playbacks of fertile chipping and a female model on their territories by approaching and chip calling. Resident males were generally not responsive to their mate's chip calls and did not move closer when their mates chipped; however, neighbouring males often intruded onto territories in response to female chip calls. Neighbouring males did not distinguish between playbacks of fertile and incubation chip calls, but responded to both at equally low frequencies. Radio-tracked neighbouring males intruded onto territories significantly more frequently when females were chipping than when they were silent. Such intrusions likely function as extra-pair mating attempts. Finally, variation in call pattern among fertile females did not correlate with frequency of extra-pair young. Our study provides some support that chip calls of hooded warblers function in female territory defence and attraction of potential extra-pair males but further testing of these hypotheses is required.
机译：我们通过繁殖女性戴兜帽的莺（Wilsonia citrina）记录“筹码”发声的使用，并提出有关通话功能的解释。繁殖力强的雌性（构筑期或产蛋期）与孵化雌性的方式不同，原因在于更低的切屑发生率，更短的破屑和每小时更多的破屑。雌性通过接近和呼叫筹码来回应在其领土上繁殖的碎屑和雌性模型。居住的雄性通常对配偶的筹码反应不灵敏，当配偶破碎时也不会靠近。但是，邻近的雄性经常响应女性筹码电话而闯入领土。邻近的雄性没有区分可育和孵化芯片调用的回放，但以相同的低频响应。无线电跟踪的邻国男性在闯荡时闯入领土的频率比沉默时更为频繁。此类入侵可能会作为配对配对尝试。最后，可育女性之间的呼叫方式变化与成对年轻人的频率不相关。我们的研究提供了一些支持，即戴兜帽莺的筹码在女性领地防御和吸引潜在的成对男性中起作用，但需要进一步验证这些假设。

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