...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Biology bulletin >Migration Routes and Wintering Grounds of Common Cuckoos (Cuculus canorus, Cuculiformes, Cuculidae) from the Southeastern Part of the Baltic Region (Based on Satellite Telemetry)
【24h】

Migration Routes and Wintering Grounds of Common Cuckoos (Cuculus canorus, Cuculiformes, Cuculidae) from the Southeastern Part of the Baltic Region (Based on Satellite Telemetry)

机译：Migration Routes and Wintering Grounds of Common Cuckoos (Cuculus canorus, Cuculiformes, Cuculidae) from the Southeastern Part of the Baltic Region (Based on Satellite Telemetry)

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

Abstract Owing to progress in satellite telemetry, during the past decade it has become possible to study in detail the migration routes of relatively small species of birds, such as cuckoos, and to find out their stopover sites and wintering and breeding grounds. On the Courish Spit, on the southeastern part of the Baltic coast, for more than 60 years (since 1957) of bird ringing, altogether 1752 common cuckoos have been captured and ringed. Only 15 of them (0.9%) have been recovered during migration. All of them arrived from Europe, but none from Africa, the wintering ground of the species. Using satellite transmitters, over five years (2015–2019), we investigated the migration routes of young and adult cuckoos caught on the Courish Spit and revealed the locations of their stopover sites and wintering grounds in Africa. A comparative analysis of migration routes and wintering grounds of common cuckoos from other European populations shows that birds from the eastern Baltic region winter farther south (mainly in Angola) than do birds from Great Britain, Denmark, or Germany (Nigeria, Cameroon, Gabon, or Congo). Both adults and young birds are able to fly nonstop for 3000–4000 km above barriers such as the Mediterranean and the Sahara. After crossing those barriers, cuckoos stay for a long time (about a month) in the more suitable regions of the Sahel, and then begin to make movements to their wintering grounds. As the result of a special experiment, unique data have been obtained, indicating that both adult and young birds, displaced 1800 km eastward from the autumn migration route (Courish Spit), are capable of compensating for their routes and reach the African continent for a successful wintering. The results of this experiment show that not only adult cuckoos that have wintered in Africa, but also unexperienced juveniles have some innate information about the location of their species-specific wintering ground. This assumption contradicts the generally accepted concept that young birds in their first autumn migration are not capable of true navigation, but use only compass orientation to reach their wintering grounds.

著录项

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号