Migration routes and staging areas of trans-Saharan Turtle Doves appraised from light-level geolocators

The identification of migration routes, wintering grounds and stopover sites are crucial issues for the understanding of the Palearctic-African bird migration system as well as for the development of relevant conservation strategies for trans-Saharan migrants. Using miniaturized light-level geolocators we report a comprehensive and detailed year round track of a granivorous trans-Saharan migrant, the European Turtle Dove (Streptopelia turtur). From five recovered loggers, our data provide new insights on migratory journeys and winter destinations of Turtle Doves originating from a breeding population in Western France. Data confirm that Turtle Doves wintered in West Africa. The main wintering area encompassed Western Mali, the Inner Delta Niger and the Malian/Mauritanian border. Some individuals also extended their wintering ranges over North Guinea, North-West of Burkina Faso and the Ivory-Coast. Our results reveal that all individuals did not spend the winter period at a single locati...

迁徙路线、越冬地与停歇地的识别，对于理解古北界-非洲鸟类迁徙系统，以及制定跨撒哈拉迁徙鸟类的相关保护策略至关重要。本研究利用微型光感地理定位器（miniaturized light-level geolocators），针对一种食谷性跨撒哈拉迁徙鸟类——欧斑鸠（European Turtle Dove，学名*Streptopelia turtur*），获取了其全年完整且细致的迁徙轨迹。通过5台回收的地理定位器，本研究数据为源自法国西部繁殖种群的欧斑鸠的迁徙历程与越冬目的地提供了全新认知。数据证实欧斑鸠的越冬地位于西非，主要越冬区涵盖马里西部、尼日尔内陆三角洲以及马里与毛里塔尼亚的边境区域。部分个体的越冬范围还延伸至几内亚北部、布基纳法索西北部以及科特迪瓦境内。本研究结果显示，所有个体并未在单个越冬位点度过越冬期……