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Documents disponibles écrits par cet auteur (6)
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Article
Thomas Kvalnes, Auteur ; Anja Ås Røberg, Auteur ; Henrik Jensen, Auteur ; Håkon Holand, Auteur ; Henrik Pärn, Auteur ; Bernt-Erik Sæther, Auteur ; Thor Harald Ringsby, AuteurPropagule size is an important maternal effect on offspring fitness and phenotype in birds and other oviparous animals. The performance of propagules often increases with size, but a fluctuating environment may introduce temporal variation in th[...]
Article
Erling Johan Solberg, Auteur ; Henrik Jensen, Auteur ; Thor Harald Ringsby, Auteur ; Bernt-Erik Saether, AuteurGene transfer may occur following hybridization between closely related species if hybrids are viable and able to breed with individuals of one or both of the parental species. House (Passer domesticus) and tree sparrows (P. montanus) occasional[...]
Article
Jaana Kekkonen, Auteur ; Ilpo K. Hanski, Auteur ; Henrik Jensen, Auteur ; Risto A. Vaisanen, Auteur ; Jon E. Brommer, AuteurA drastic decline in abundance prompts conservation measures, even though a species may still be common, partly because such a decline may be associated with loss of genetic variability. Longitudinal evidence (i.e. repeated measures across time)[...]
Article
Petr Procházka, Auteur ; Bard G. Stokke, Auteur ; Henrik Jensen, Auteur ; Drahomira Fainova, Auteur ; Erica Bellinvia, Auteur ; Frode Fossoy, Auteur ; Johan R. Vikan, Auteur ; Josef Bryja, Auteur ; Manuel Soler, AuteurMigratory birds generally have higher dispersal propensity than resident species and are thus expected to show less genetic differentiation. On the other hand, specific migration patterns may promote genetic structure, such as in situations wher[...]
Article
Jaana Kekkonen, Auteur ; Henrik Jensen, Auteur ; Jon E. Brommer, AuteurTo understand the biology of organisms it is important to take into account the evolutionary forces that have acted on their constituent populations. Neutral genetic variation is often assumed to reflect variation in quantitative traits under se[...]
Article
Thor H. Ringsby, Auteur ; Torborg Berge, Auteur ; Bernt-Erik Saether, Auteur ; Henrik Jensen, AuteurParental care is assumed to be closely associated with individual differences in reproductive success. We investigated how feeding frequencies varied among parents and how this affected the subsequent reproductive success in insular populations [...]
