The use of stopover sites by Black Storks (Ciconia nigra) migrating between West Europe and West Africa as revealed by satellite telemetry
The use of stopover sites by Black Storks (Ciconia nigra) migrating between West Europe and West Africa as revealed by satellite telemetry
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DOI：
10.1007/s10336-010-0536-6
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发表时间：
2011-01-01
影响因子：
1.3
通讯作者：
Massemin, S.
中科院分区：
文献类型：
--
作者：
Chevallier, D.;Le Maho, Y.;Massemin, S.
众所周知，迁徙是许多鸟类年度周期的瓶颈，其成功与否取决于迁徙路线上是否有中途停留的地方。利用卫星跟踪技术确定了16只黑鹳在秋季和春季从欧洲繁殖地到西非越冬地之间的迁徙策略和重要中途停留地。有些鸟类的迁徙不需要中途停留，而另一些则需要在迁徙过程中至少停留一次：每只鸟观察到1-5次中途停留，其中一半中途停留在西班牙。精确的GPS定位表明，鹳不太可能在它们的夜间栖息地附近觅食，就在它们迁徙飞行之后或之前。对于中途停留的鸟类，追踪数据揭示了在两次迁徙中使用中途停留的个体之间和个体内部的差异，表明对这些地点缺乏保真度。潜在育种者和非育种者的中途停留次数相似，尽管非育种者的中途停留时间明显长于潜在育种者。秋、春季候鸟停留时间无显著差异。6个中途停留被认为是重要的，基于在那里停留的时间（bbb10天）。这项研究强调了沿迁徙路径建立保护区的重要性以及为这些中途停留地点规划保护措施的必要性。
Migration is known to be a bottleneck in the annual cycle of many birds, and its success can depend on the availability of stopovers along the migration route. Satellite tracking was used to identify migratory strategies and important stopovers in 16 Black Storks (Ciconia nigra) during their autumn and spring migrations between European breeding areas and West African wintering sites. Some birds migrate without using stopovers, whereas others need to stop at least once during their migration: 1-5 stopovers were observed per bird, and half of all stopovers were located in Spain. Precise GPS locations indicated that it is unlikely that the storks forage near their night roost, just after or before their migratory flights. For the birds that do make stopovers, the tracking data reveal both inter- and intra-individual variability in the use of stopovers over the two migrations, suggesting a lack of fidelity to such sites. The number of stopovers was similar for potential breeders and non-breeders, although the length of stopovers was significantly longer for non-breeders than for potential breeders. No difference in stopover duration was found between autumn and spring migrations. Six stopovers were considered as important ones, based on the time spent there (> 10 days). This study underlines the importance of protected areas along migratory paths and the necessity to plan protective measures for those stopover sites.