Proximate causes of avian protandry differ between subspecies with contrasting migration challenges

Heiko Schmaljohann, Christoph Meier, Debora Arlt, Franz Bairlein, Herman Van Oosten, Yolanda E. Morbey, Susanne kesson, Martin Buchmann, Nikita Chernetsov, Robert Desaever, John Elliott, Magnus Hellström, Felix Liechti, Aïda López, John Middleton, Ulf Ottosson, Tomas Pärt, Fernando Spina, Cas Eikenaar

Результат исследований: Научные публикации в периодических изданияхстатья

40 Цитирования (Scopus)
29 Загрузки (Pure)

Аннотация

In many migratory birds, males precede females during migration and arrival at the breeding sites. Three proximate mechanisms are proposed to explain this phenomenon of protandry: males 1) winter closer to breeding sites, 2) start spring migration earlier, and/or 3) migrate faster than females. So far, the relative contribution of these mechanisms to protandry is unknown. The present study investigated the importance of each of the 3 proximate mechanisms of protandry for a songbird migrant wintering in Africa, the northern wheatear (Oenanthe oenanthe). Two subspecies co-occur in Europe on migration, of which the leucorhoa northern wheatears breeding from Iceland to Canada have to cross the North Atlantic, whereas the nominate form breeding in Europe does not face any significant sea barrier. We show that the leucorhoa subspecies had a significantly higher degree of protandry at stopover sites across Europe than the oenanthe subspecies (−6 vs. −2 days). Leucorhoa northern wheatear’s higher degree of protandry
Язык оригиналаанглийский
Страницы (с-по)321-331
ЖурналBehavioral Ecology
Том27
Номер выпуска1
DOI
СостояниеОпубликовано - 2016
Опубликовано для внешнего пользованияДа

Fingerprint Подробные сведения о темах исследования «Proximate causes of avian protandry differ between subspecies with contrasting migration challenges». Вместе они формируют уникальный семантический отпечаток (fingerprint).

Цитировать