Ongoing climate changes represent a major determinant of demographic processes in many organisms worldwide. Birds, and especially long-distance migrants, are particularly sensitive to such changes. To better understand these impacts on long-distance migrants' breeding productivity, we tested three hypotheses focused on (i) the shape of the relationships with different climate variables, including previously rarely tested quadratic responses, and on regional differences in these relationships predicted by (ii) mean climatic conditions and (iii) by the rate of climate change in respective regions ranging from Spain to Finland.

中文翻译：

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欧洲长距离候鸟繁殖生产力的气候预测因子


持续的气候变化是全世界许多生物体人口过程的主要决定因素。鸟类，尤其是长途迁徙的鸟类，对这种变化特别敏感。为了更好地了解这些对长途迁徙者繁殖生产力的影响，我们测试了三个假设，重点是 （i） 与不同气候变量的关系形状，包括以前很少测试的二次方响应，以及由 （ii） 平均气候条件和 （iii） 从西班牙到芬兰的各个地区的气候变化速率预测的这些关系的区域差异。