La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Biometrics as a determinant of the origins of seabirds killed in oil spills and other incidents
Auteurs :	Robert T. Barrett, Auteur ; Tycho Anker-Nilssen, Auteur ; Vidar Bakken, Auteur ; Hallvard Strom, Auteur ; Yuri Krasnov, Auteur ; Tomas Aarvak, Auteur
Type de document :	Article
Dans :	Bird Conservation International (18(3) SEP 2008)
Article en page(s) :	229-241
Langues:	Anglais
Résumé :	Common Guillemots Uria aalge and Brunnich's Guillemots U. lomvia are common victims of oil spills, drowning in fishing nets and winter wrecks. Because the Norwegian population of Common Guillemots is classified as critically endangered and the Russian Population of the Brunnich's Guillemot has declined greatly, it is important to be able to identify the origins of birds killed outside the breeding season. Measurements of birds made in nine colonies in the Barents and Norwegian Seas showed that although it is impossible to determine with reasonable accuracy the colony of origin from body measurements, the most likely sea of origin of Common Guillemots may be determined on the basis of wing and head + bill lengths, whereas there was no systematic variation in any measurement of Brunnich's Guillemots.

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