Avian migration phenology and global climate change
Avian migration phenology and global climate change
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DOI：
10.1073/pnas.1930548100
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发表时间：
2003-10-14
影响因子：
11.1
通讯作者：
Cotton, PA
中科院分区：
文献类型：
--
作者：
Cotton, PA
越来越多的证据表明，全球气候变化延长了植物的生长季节，改变了分布模式，改变了开花、繁殖和迁徙的物候。对于候鸟来说，到达繁殖地和越冬地的时间是繁殖成功、生存和健康的关键决定因素。但我们对控制长途移民早期迁徙的因素知之甚少。在过去的30年里，英国牛津郡20种候鸟的平均到达和离开日期都提前了8天；因此，在牛津郡的总体居住时间保持不变。随着撒哈拉以南非洲地区冬季气温的升高，到达时间提前了，而牛津郡夏季气温升高后，离开时间提前了。这一发现表明，迁徙物候很可能受到全球气候变化的影响，并将热带冬季的事件与温带繁殖区的事件联系起来。
There is mounting evidence that global climate change has extended growing seasons, changed distribution patterns, and altered the phenology of flowering, breeding, and migration. For migratory birds, the timing of arrival on breeding territories and over-wintering grounds is a key determinant of reproductive success, survivorship, and fitness. But we know little of the factors controlling earlier passage in long-distance migrants. Over the past 30 years in Oxfordshire, U.K., the average arrival and departure dates of 20 migrant bird species have both advanced by 8 days; consequently, the overall residence time in Oxfordshire has remained unchanged. The timing of arrival has advanced in relation to increasing winter temperatures in sub-Saharan Africa, whereas the timing of departure has advanced after elevated summer temperatures in Oxfordshire. This finding demonstrates that migratory phenology is quite likely to be affected by global climate change and links events in tropical winter quarters with those in temperate breeding areas.