Blar i NINA Brage på forfatter "Schmoll, Tim"
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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 in the boreal, socially monogamous Grey-headed Chickadee (Poecile cinctus)
Kleven, Oddmund; Rudolfsen, Geir; Schmoll, Tim (Peer reviewed; Journal article, 2020)Extra-pair mating is common alternative reproductive strategyamong socially monogamous bird species, but empirical data on the genetic mating systems of most species are still lacking. Here we present the first parentage ... -
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 ... -
Individual phenotypic plasticityexplains seasonal variation in sperm morphology in a passerine bird
Schmoll, Tim; Kleven, Oddmund; Rusche, Maria (Peer reviewed; Journal article, 2018)Background: Spermatozoa display impressive variation in size and form among and within animal species. In birds, comparative evidence suggests that post-copulatory sexual selection resulting from extra-pair copulations is ... -
Sperm velocity in a promiscuous bird across experimental media of different viscosities
Schmoll, Tim; Rudolfsen, Geir; Schielzeth, Holger; Kleven, Oddmund (Peer reviewed; Journal article, 2020)In species with internal fertilization, the female genital tract appears challenging to sperm, possibly resulting from selection on for example ovarian fluid to control sperm behaviour and, ultimately, fertilization. Few ...