The investigation of biogeographical patterns in the diet of widely distributed predators is essential to understand their ecology, life history traits and local adaptations. However, it is particularly challenging because of their wide distribution, broad trophic spectra and high ecological plasticity. Here, we described patterns of trophic ecology in a cosmopolitan nocturnal raptor, the common barn owl group, from a biogeographical perspective. We then compared variation in diet between barn owls living in the Americas (T. furcata), and those inhabiting Europe, Middle‐East and Africa (T. alba), thus hunting on different assemblages of prey types.

中文翻译：

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大都会鸟类捕食者饮食中的全球生物地理格局

对分布广泛的捕食者饮食中的生物地理模式进行调查对于了解其生态，生活史特征和当地适应性至关重要。但是，由于它们的分布范围广，营养谱宽和生态可塑性高，因此特别具有挑战性。在这里，我们从生物地理学的角度描述了一个大都会的夜间猛禽（普通的仓owl组）的营养生态模式。然后，我们比较了居住在美洲（T. furcata）和欧洲，中东和非洲（T. alba）的谷仓猫头鹰在饮食上的差异，从而寻找不同种类的猎物。