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Ecology and Evolution

D-Index
33
Citations
2939
World Ranking
7975
National Ranking
135

Overview

Geir Rudolfsen is affiliated with the University of Tromsø - The Arctic University of Norway. Their research primarily focuses on environmental science and agricultural and biological sciences, often intersecting with subfields such as ecology, evolution, behavior, systematics, ecological modeling, nature and landscape conservation, and global and planetary change.

Their work covers a range of topics within avian ecology and behavior, animal behavior and reproduction, and plant and animal studies. Additional topics include wildlife ecology and conservation, species distribution and climate change, ecology and vegetation dynamics studies, as well as radioactive contamination and transfer.

Geir Rudolfsen has contributed to multiple peer-reviewed publications in several scientific journals. Recent papers include:

  • When Older Males Sire More Offspring-Increased Attractiveness or Higher Fertility? (2022), Behavioral Ecology and Sociobiology
  • Sperm velocity in a promiscuous bird across experimental media of different viscosities (2020), Proceedings of the Royal Society B Biological Sciences
  • Resident bird species track inter-annual variation in spring phenology better than long-distance migrants in a subalpine habitat (2022), Climate Change Ecology
  • Extra-pair paternity in the boreal, socially monogamous Grey-headed Chickadee (Poecile cinctus) (2020), Ornis Fennica
  • Extra-pair paternity and sperm length variation in a far northern Great Tit (Parus major) population (2024), Journal für Ornithologie

Frequent co-authors in Rudolfsen's publications include Oddmund Kleven, Tim Schmoll, Jan T. Lifjeld, Frode Fossøy, and Frode F. Jacobsen. The repeated collaboration with these researchers reflects thematic consistency in studies related to avian reproductive biology and behavioral ecology.

Rudolfsen's research has been published consistently in a selection of journals with Behavioral Ecology and Sociobiology being a notable venue with multiple publications. Other journals include the Proceedings of the Royal Society B Biological Sciences, Climate Change Ecology, Ornis Fennica, and Journal für Ornithologie.

Best Publications

  • Rapid adjustments of sperm characteristics in relation to social status

    Geir Rudolfsen;Lars Figenschou;Ivar Folstad;Helge Tveiten

  • COMPARATIVE EVIDENCE FOR THE EVOLUTION OF SPERM SWIMMING SPEED BY SPERM COMPETITION AND FEMALE SPERM STORAGE DURATION IN PASSERINE BIRDS

    Oddmund Kleven;Frode Fossøy;Frode Fossøy;Terje Laskemoen;Raleigh J. Robertson

  • Rejection of artificial cuckoo (Cuculus canorus) eggs in relation to variation in egg appearance among reed warblers (Acrocephalus scirpaceus)

    Bård G. Stokke;Arne Moksnes;Eivin Røskaft;Geir Rudolfsen

  • Effects of ovarian fluid on sperm velocity in Arctic charr (Salvelinus alpinus)

    Davnah Urbach;Davnah Urbach;Ivar Folstad;Geir Rudolfsen

  • Predictors of resistance to brood parasitism within and among reed warbler populations

    Bård G. Stokke;Inge Hafstad;Geir Rudolfsen;Arne Moksnes

  • Chernobyl Birds Have Smaller Brains

    Anders Pape Møller;Andea Bonisoli-Alquati;Geir Rudolfsen;Timothy A. Mousseau

  • Quantitative characteristics of Atlantic halibut, Hippoglossus hippoglossus L., semen throughout the reproductive season.

    Igor Babiak;Oddvar Ottesen;Geir Rudolfsen;Steinar Johnsen

  • The genetic consequences of hatchery-induced sperm competition in a salmonid

    Claus Wedekind;Claus Wedekind;Geir Rudolfsen;Alain Jacob;Davnah Urbach

  • Sperm velocity influence paternity in the Atlantic cod (Gadus morhua L.)

    Geir Rudolfsen;Lars Figenschou;Ivar Folstad;Oddmund Kleven

  • Factors predicting male fertilization success in an external fertilizer

    Ståle Liljedal;Geir Rudolfsen;Ivar Folstad

  • Sperm quantity and quality effects on fertilization success in a highly promiscuous passerine, the tree swallow Tachycineta bicolor

    Terje Laskemoen;Oddmund Kleven;Oddmund Kleven;Frode Fossøy;Frode Fossøy;Raleigh J. Robertson

  • Potential fitness benefits from mate selection in the Atlantic cod (Gadus morhua)

    G. Rudolfsen;L. Figenschou;I. Folstad;J. T. Nordeide

  • Rejection of Conspecific Eggs in Chaffinches: The Effect of Age and Clutch Characteristics

    Bård G. Stokke;Bård G. Stokke;Geir Rudolfsen;Arne Moksnes;Eivin Røskaft

  • Senescent sperm performance in old male birds.

    A. P. Møller;T. A. Mousseau;G. Rudolfsen;J. BALBONTíN

  • Host density predicts presence of cuckoo parasitism in reed warblers

    Bård G. Stokke;Inge Hafstad;Geir Rudolfsen;Bruno Bargain

  • Sperm-related phenotypes implicated in both maintenance and breakdown of a natural species barrier in the house mouse.

    Jana Albrechtová;Tomáš Albrecht;Tomáš Albrecht;Stuart J. E. Baird;Miloš Macholán

  • Costs associated with recognition and rejection of parasitic eggs in two European passerines

    Bård G. Stokke;Marcel Honza;Arne Moksnes;Eivin Røskaft

  • Breeding success of common cuckoos Cuculus canorus parasitising four sympatric species of Acrocephalus warblers

    Oddmund Kleven;Arne Moksnes;Eivin Røskaft;Geir Rudolfsen

  • Impaired swimming behaviour and morphology of sperm from barn swallows Hirundo rustica in Chernobyl.

    A.P. Møller;T.A. Mousseau;C. Lynnn;S. Ostermiller

  • Variation in sperm morphometry and sperm competition among barn swallow ( Hirundo rustica ) populations

    Terje Laskemoen;Tomas Albrecht;Tomas Albrecht;Andrea Bonisoli-Alquati;Jaroslav Cepak

  • Sperm characteristics and competitive ability in farmed and wild cod

    Jon Egil Skjæraasen;Ian Mayer;Justin J. Meager;Geir Rudolfsen

  • Milt characteristics of diploid and triploid Atlantic cod (Gadus morhua L.)

    Stefano Peruzzi;Geir Rudolfsen;Raul Primicerio;Marianne Frantzen

Frequent Co-Authors

Ivar Folstad
Ivar Folstad University of Tromsø - The Arctic University of Norway
Oddmund Kleven
Oddmund Kleven Norwegian Institute for Nature Research
Anders Pape Møller
Anders Pape Møller University of Paris-Saclay
Bård G. Stokke
Bård G. Stokke Norwegian Institute for Nature Research
Timothy A. Mousseau
Timothy A. Mousseau University of South Carolina
Eivin Røskaft
Eivin Røskaft Norwegian University of Science and Technology
Arne Moksnes
Arne Moksnes Norwegian University of Science and Technology
Jan T. Lifjeld
Jan T. Lifjeld University of Oslo
Marcel Honza
Marcel Honza Czech Academy of Sciences
Raine Kortet
Raine Kortet University of Eastern Finland

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