Menu

Javascript is not activated in your browser. This website needs javascript activated to work properly.
You are here

Nocturnal autumn bird migration at Falsterbo, South Sweden

Author:
  • Susanna Zehnder
  • Susanne Åkesson
  • Felix Liechti
  • Bruno Bruderer
Publishing year: 2001
Language: English
Pages: 239-248
Publication/Series: Journal of Avian Biology1994-01-01+01:00
Volume: 32
Issue: 3
Document type: Journal article
Publisher: Federation of European Neuroscience Societies and Blackwell Publishing Ltd

Abstract english

We investigated the patterns of nocturnal bird migration in autumn 1998 at a coastal site on the Falsterbo peninsula in south-western Sweden, by means of a passive infrared device. In total 17 411 flight paths, including track direction and altitude, of migrating birds were recorded for 68 nights from August to October. Mean migratory traffic rate per night varied between 6 and 6618 birds km1 h1, with an average of 1319 birds km1 h1. Migration at Falsterbo showed a similar seasonal pattern to that reported for central Europe, with pronounced peaks of migration and intermittent periods with relatively low migratory intensities. Weather factors explained two thirds of the variance in the intensity of bird migration. During nights with intense migration, associated with weak winds, the mean track direction was close to that in central western Europe (225). Birds usually maintained a constant heading independent of wind directions and, in consequence, were drifted by the wind. The mean orientation clearly differed from that of the nearest coastline, suggesting that the birds did not use the topography below to compensate for wind drift.

Keywords

  • Biological Sciences

Other

Published
  • ISSN: 0908-8857
Susanne Åkesson
E-mail: susanne [dot] akesson [at] biol [dot] lu [dot] se

Professor

Evolutionary ecology

+46 46 222 37 05

+46 70 245 04 23

E-B362

50