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Mortality of bats at wind turbines links to nocturnal insect migration?

  • Jens Rydell
  • Lothar Bach
  • Marie-Jo Dubourg-Savage
  • Martin Green
  • Luisa Rodrigues
  • Anders Hedenström
Publishing year: 2010
Language: English
Pages: 823-827
Publication/Series: European Journal of Wildlife Research
Volume: 56
Issue: 6
Document type: Journal article review
Publisher: Springer

Abstract english

This note is based on a literature search and a recent review of bat mortality data from wind farms in Europe (published elsewhere). We suggest that mortality of bats at wind turbines may be linked to high-altitude feeding on migrating insects that accumulate at the turbine towers. Modern wind turbines seem to reach high enough into the airspace to interfere with the migratory movements of insects. The hypothesis is consistent with recent observations of bats at wind turbines. It is supported by the observation that mortality of bats at wind turbines is highly seasonal (August-September) and typically peaks during nights with weather conditions known to trigger large-scale migratory movements of insects (and songbirds). We also discuss other current hypotheses concerning the mortality of bats at wind turbines.


  • Ecology
  • Biological Sciences
  • Moths
  • Insect behaviour
  • Aeroecology
  • Bat conservation
  • Wind energy


  • CAnMove
  • BECC
  • ISSN: 1612-4642
Martin Green
E-mail: martin [dot] green [at] biol [dot] lu [dot] se



+46 46 222 38 16



Research group

Biodiversity and Conservation Science



PhD students & postdocs

Assistant supervisor

Dafne Ram