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欧洲知更鸟(Erithacus rubecula)的迁徙连通性及冬季温度对其迁徙行为的影响:一项全大陆范围的分析

Migratory connectivity and effects of winter temperatures on migratory behaviour of the European robin Erithacus rubecula: a continent-wide analysis.

作者信息

Ambrosini Roberto, Cuervo José Javier, du Feu Chris, Fiedler Wolfgang, Musitelli Federica, Rubolini Diego, Sicurella Beatrice, Spina Fernando, Saino Nicola, Møller Anders Pape

机构信息

Department of Earth and Environmental Sciences (DISAT), University of Milano Bicocca, piazza della Scienza 1, 20126, Milano, Italy.

Department of Evolutionary Ecology, Museo Nacional de Ciencias Naturales, CSIC, Calle José Gutiérrez Abascal 2, E-28006, Madrid, Spain.

出版信息

J Anim Ecol. 2016 May;85(3):749-60. doi: 10.1111/1365-2656.12497. Epub 2016 Mar 1.

Abstract

Many partially migratory species show phenotypically divergent populations in terms of migratory behaviour, with climate hypothesized to be a major driver of such variability through its differential effects on sedentary and migratory individuals. Based on long-term (1947-2011) bird ringing data, we analysed phenotypic differentiation of migratory behaviour among populations of the European robin Erithacus rubecula across Europe. We showed that clusters of populations sharing breeding and wintering ranges varied from partial (British Isles and Western Europe, NW cluster) to completely migratory (Scandinavia and north-eastern Europe, NE cluster). Distance migrated by birds of the NE (but not of the NW) cluster decreased through time because of a north-eastwards shift in the wintering grounds. Moreover, when winter temperatures in the breeding areas were cold, individuals from the NE cluster also migrated longer distances, while those of the NW cluster moved over shorter distances. Climatic conditions may therefore affect migratory behaviour of robins, although large geographical variation in response to climate seems to exist.

摘要

许多部分迁徙物种在迁徙行为方面表现出表型不同的种群,气候被认为是造成这种变异性的主要驱动因素,因为它对定居个体和迁徙个体有不同影响。基于长期(1947 - 2011年)的鸟类环志数据,我们分析了欧洲知更鸟(欧亚鸲)在欧洲各地种群间迁徙行为的表型分化。我们发现,共享繁殖和越冬区域的种群集群从部分迁徙(不列颠群岛和西欧,西北集群)到完全迁徙(斯堪的纳维亚和欧洲东北部,东北集群)各不相同。由于越冬地向东北方向移动,东北集群(而非西北集群)的鸟类迁徙距离随时间减少。此外,当繁殖区冬季温度较低时,东北集群的个体也会迁徙更长的距离,而西北集群的个体迁徙距离较短。因此,气候条件可能会影响知更鸟的迁徙行为,尽管在对气候的响应方面似乎存在很大的地理差异。

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