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Local prey shortages drive foraging costs and breeding success in a declining seabird, the Atlantic puffin
(Peer reviewed; Journal article, 2021)1. As more and more species face anthropogenic threats, understanding the causes of population declines in vulnerable taxa is essential. However, long-term datasets, ideal to identify lasting or indirect effects on fitness ... -
Population status, breeding biology and diet of Norwegian Great Cormorants
(Peer reviewed; Journal article, 2021)Two subspecies of the Great Cormorant breed in Norway, the continental Phalacrocorax carbo sinensis in the south, along the Skagerrak coast, and the marine P. c. carbo from central Norway and northwards. Here we review the ... -
Temporal shifts in the marine feeding of individual Atlantic salmon inferred from scale isotope ratios
(Peer reviewed; Journal article, 2023)Given the limited information on prey use during the marine residency period for Atlantic salmon, scales were collected from salmon at return to the River Namsen (Norway) for spawning after 1 year at sea, and scale material ...