Translator Disclaimer
1 June 2010 Do Weather and Lunar Cycle Influence the Decision of Juvenile Reed Warblers Acrocephalus scirpaceus to Perform Post-Fledging Nocturnal Flights Over the Natal Area?
Author Affiliations +
Abstract

Many juvenile Reed Warblers perform nocturnal flights before the onset of the autumn migration. In our study we tested the hypothesis that the decision by juvenile Reed Warblers to perform such flights over the natal area during the post-fledging period depends on weather conditions and the phase of the lunar cycle. We analysed the data on nocturnal movements of 26 birds radio-tagged near their natal site on the Courish Spit (SE Baltic coast). We infer from our results that the decision in juvenile Reed Warblers to take off on a nocturnal flight over the natal area is triggered by intrinsic stimuli and depends only very slightly on environmental conditions. Comparison of these data with a previous study of the effect of weather and the lunar cycle on long-distance nocturnal pre-migratory flights by juvenile Reed Warblers suggests that the motivation to leave the natal area at night increases under good visibility and conditions favourable for flight.

Victor N. Bulyuk and Andrey Mukhin "Do Weather and Lunar Cycle Influence the Decision of Juvenile Reed Warblers Acrocephalus scirpaceus to Perform Post-Fledging Nocturnal Flights Over the Natal Area?," Acta Ornithologica 45(1), 27-32, (1 June 2010). https://doi.org/10.3161/000164510X516056
Received: 1 August 2009; Accepted: 1 February 2010; Published: 1 June 2010
JOURNAL ARTICLE
6 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top