作者
Paolo Becciu, Shay Rotics, Nir Horvitz, Michael Kaatz, Wolfgang Fiedler, Damaris Zurell, Andrea Flack, Florian Jeltsch, Martin Wikelski, Ran Nathan, Nir Sapir
发表日期
2020/4
期刊
Functional Ecology
卷号
34
期号
4
页码范围
840-852
简介
- Studying the causes and consequences of route selection in animal migration is important for understanding the evolution of migratory systems and how they may be affected by environmental factors at various spatial and temporal scales. One key decision during migration is whether to cross ‘high transport cost’ areas or to circumvent them. Soaring birds may face this choice when encountering waterbodies where convective updrafts are weak or scarce. Crossing these waterbodies requires flying using energetically costly flapping flight, while circumventing them over land permits energetically cheap soaring.
- We tested how several atmospheric factors (e.g. wind, thermal uplift) and geographic, seasonal and state‐related factors (sex and age) affected route selection in migrating white storks Ciconia ciconia. We used 196 GPS tracks of 70 individuals either crossing or circumventing the north‐easternmost section …
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P Becciu, S Rotics, N Horvitz, M Kaatz, W Fiedler… - Functional Ecology, 2020