La Tour du Valat

Article

Population Status, Breeding Biology and Diet of Norwegian Great Cormorants

Svein-Hakon Lorentsen, Auteur ; Tycho Anker-Nilssen, Auteur ; Robert T. Barrett, Auteur ; Geir H. Systad, Auteur

Dans Ardea (109(3) December, 2021)

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Fit is fat: winter body mass of Atlantic Puffins Fratercula arctica

Tycho Anker-Nilssen, Auteur ; Jens-Kjeld Jensen, Auteur ; Michael P. Harris, Auteur

Dans Bird Study (65(1) August, 2018)

Capsule: Atlantic Puffins Fratercula arctica from Scottish and Norwegian populations were significantly heavier in winter than when rearing chicks.Aims: To compare body masses of Atlantic Puffins on their wintering grounds off the Faroe Islands [...]

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Biometrics as a determinant of the origins of seabirds killed in oil spills and other incidents

Robert T. Barrett, Auteur ; Tycho Anker-Nilssen, Auteur ; Vidar Bakken, Auteur ; Hallvard Strom, Auteur ; Yuri Krasnov, Auteur ; Tomas Aarvak, Auteur

Dans Bird Conservation International (18(3) SEP 2008)

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 R[...]

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Local and large-scale climatic variables as predictors of the breeding numbers of endangered Lesser Black-backed Gulls on the Norwegian Coast

Jan Ove Bustnes, Auteur ; Tycho Anker-Nilssen, Auteur ; Svein-Hakon Lorentsen, Auteur

Dans Journal of Ornithology (151(1) JAN 2010)

In the 1970s and 1980s, the nominate subspecies of the Lesser Black-backed Gull (Larus fuscus fuscus) showed a dramatic drop in breeding numbers on the Norwegian Coast, and in 2000, the population in some colonies was only 10-20% of the populati[...]

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Article

Low or no occurrence of extra-pair paternity in the Black Guillemot Cepphus grylle

Tycho Anker-Nilssen, Auteur ; Oddmund Kleven, Auteur ; Tomas Aarvak, Auteur ; Jan T. Lifjeld, Auteur

Dans Journal of Ornithology (151(1) JAN 2010)

We investigated extra-pair paternity (EPP) among 46 young in 32 broods of 19 social pairs of Black Guillemot Cepphus grylle, using a combination of three polymorphic microsatellite markers. The analysis was based on blood samples collected over [...]

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No evidence of extra-pair paternity in the Atlantic Puffin Fratercula arctica

Tycho Anker-Nilssen, Auteur ; Oddmund Kleven, Auteur ; Tomas Aarvak, Auteur ; Jan T. Lifjeld, Auteur

Dans Ibis (150(3) JUL 2008)

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