Differences in shifts of wintering and breeding ranges lead to changing migration distances in European birds
Differences in shifts of wintering and breeding ranges lead to changing migration distances in European birds
复制标题
越冬和繁殖范围变化的差异导致欧洲鸟类迁徙距离的变化
DOI：
--
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
A. Lehikoinen
中科院分区：
文献类型：
--
作者：
D. Potvin;K. Välimäki;A. Lehikoinen
关于气候变化对欧洲鸟类物种分布影响的研究主要集中在一个季节，特别是关于夏季繁殖范围。我们调查了候鸟物种在过去55年中在繁殖区和越冬区是否表现出一致的范围变化，或者这些变化是否是独立的。然后，我们分析了芬兰繁殖鸟类迁移距离变化的模式是否可以解释栖息地的使用，繁殖或身体大小。我们使用芬兰振铃中心的长期数据集来分析29种芬兰繁殖鸟类的平均越冬纬度，然后使用繁殖分布数据来预测某些物种是否会根据越冬和繁殖地的比较变化迁移更短或更长的距离。我们的数据揭示了物种特有的差异，在不断变化的迁移距离。我们发现，对于许多物种来说，越冬范围的长期变化并没有遵循与繁殖范围相同的模式，从而导致随着时间的推移迁移距离的差异。我们的结论是，物种在其越冬地的气候变化是不可预测的调整，导致迁移距离的变化，在一些，但不是所有的，在芬兰繁殖的物种。这项研究填补了当前气候变化生物学文献中的一个重要空白，重点关注个人的整个生活史，并揭示了范围变化模式的新复杂性。© 2016作者
Studies on the impact of climate change on the distributions of bird species in Europe have largely focused on one season at a time, especially concerning summer breeding ranges. We investigated whether migratory bird species show consistent range shifts over the past 55 yr in both breeding and wintering areas or if these shifts are independent. We then analyzed whether patterns in changing migration distances of Finnish breeding birds could be explained by habitat use, phylogeny or body size. We used long-term datasets from the Finnish ringing centre to analyze the mean wintering latitudes of 29 species of Finnish breeding birds, then used breeding distribution data to make predictions as to whether certain species were migrating shorter or longer distances based on the comparative shifts in the wintering and breeding grounds. Our data reveal species-specific differences in changing migration distances. We show that for many species, long-term shifts in wintering ranges have not followed the same patterns as those in the breeding range, leading to differences in migration distances over time. We conclude that species are not adjusting predictably to climate change in their wintering grounds, leading to changing migration distances in some, but not all, species breeding in Finland. This research fills an important gap in the current climate change biology literature, focusing on individuals’ entire life histories and revealing new complexities in range shift patterns. © 2016 The Authors