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Counting seabirds at sea from ships: a review of methods employed and a suggestion for a standardised approach
Tasker, M.; Jones, P.H.; Dixon, T.J.; Blake, B.F. (1984). Counting seabirds at sea from ships: a review of methods employed and a suggestion for a standardised approach. The Auk 101: 567-577
In: The Auk: a quarterly journal of ornithology. The American Ornithologists' Union: Washington, D.C.. ISSN 0004-8038, more
Peer reviewed article  

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Keywords
    Marine birds; Marine

Authors  Top 
  • Tasker, M., more
  • Jones, P.H.
  • Dixon, T.J.
  • Blake, B.F.

Abstract
    We review the methods used to study seabirds at sea from ships, discuss the problems posed in making reliable observationsin relation to the design of research programs, and describe a method currentlyi n use around the seas of Great Britain.We suggest a framework for future studies, incorporating features likely to stabilize bias. The key items in this recommendation are (1) the use of a band transect in order to provide density estimates,and (2) a method to correct for movement of flying birds in the band transect in order to minimize bias caused by such movement.

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