Blar i Scientific publications på forfatter "Østnes, Jan Eivind"
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Birds of different feather flock together - genetic structure of Taiga Bean Goose in Central Scandinavia
de Jong, Adriaan; Kleven, Oddmund; Østnes, Jan Eivind; Kroglund, Rolf Terje; Vahlström, Isak; Nilsson, Jan; Spong, Göran (Journal article; Peer reviewed, 2018)During their flightless summer moult, Taiga Bean Geese Anser fabalis fabalis gather at communal moulting sites. Individuals from the Nord-Trøndelag breeding area in Norway have been observed to join with local individuals ... -
Extra-pair paternity and sperm length variation in a far northern Great Tit (Parus major) population
Kleven, Oddmund; Østnes, Jan Eivind; Rudolfsen, Geir; Schindler, Sonja; Schmoll, Tim (Peer reviewed; Journal article, 2024)Extra-pair paternity is common among socially monogamous bird species and considered an important driver of post-copulatory sexual selection on ejaculate traits including sperm traits. Patterns of extra-pair paternity and ... -
Extra‑pair paternity and sperm length variation in the socially monogamous Fieldfare Turdus pilaris
Kleven, Oddmund; Fiske, Aksel N.; Håvik, Magnus; Kroglund, Rolf Terje; Østnes, Jan Eivind; Schmoll, Tim (Peer reviewed; Journal article, 2019)Basic knowledge about the genetic mating system is lacking for the great majority of the approximately 10,000 extant bird species. Filling this knowledge gap is not only critical for a comprehensive understanding of the ... -
Wildlife Camera Monitoring Revealed the Northern Goshawk as a Predator on Gyrfalcon Nestlings
Moen, Børje Cato; Kroglund, Rolf Terje; Østnes, Jan Eivind; Nilsen, Erlend Birkeland; Nygård, Torgeir (Peer reviewed; Journal article, 2023)Accipiter gentilis; Falco rusticolus; intraguild predation; nestling; nocturnal foraging; predation.