Jan Terje Lifjeld

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Professor

University of Oslo

Norway

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About

Jan Terje Lifjeld is a Professor at the University of Oslo, Norway. His research primarily focuses on avian reproductive biology, including topics such as atypical sperm morphology, extrapair copulations, and mitochondrial DNA dynamics in songbirds. Recent articles authored by Prof. Lifjeld address issues related to sperm phenotypes, gene expression in relation to Z chromosome inversions, and the effects of environmental factors on avian sperm morphology.

Recent Grants

Grant: Close

Sperm Evolution in Birds

Open Date: 2020-01-01

Close Date: 2024-12-31

Grant: Close

Sperm, speciation and promiscuity - an integrated analysis of evolution in passerine birds

Open Date: 2010-01-01

Close Date: 2014-12-31

Grant: Close

Kina - Paternity and social structure in small passerines of the Tibetan Plateau

Open Date: 2006-01-01

Close Date: 2007-12-31

Grant: Close

Sperm morphology and function in passerine birds

Open Date: 2006-01-01

Close Date: 2010-12-31

Grant: Close

The role of heterozygosity for individual fitness and mating system evolution in birds

Open Date: 2003-01-01

Close Date: 2006-12-31

Articles (16)

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2025

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2023

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2023

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2023

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2023

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2022

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2022

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2022

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2022

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2022

Collaborators (7)

Melissah Rowe

NETHERLANDS

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Tomas Albrecht

Charles University

CZECH REPUBLIC

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Michael Matschiner

Associate Professor

University of Oslo

NORWAY

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Emma Whittington

University of St. Andrews

UNITED KINGDOM

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Geir Rudolfsen

Head

UiT Norges arktiske universitet

NORWAY

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Oddmund Kleven

Norwegian Institute for Nature Research

NORWAY

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Erica Leder

Senior Lecturer

University of Gothenburg

SWEDEN

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Jan Terje Lifjeld

Research Interests

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About

Recent Grants

Articles (16)

Independent evolution of atypical sperm morphology in a passerine bird

Extrapair copulations in coal tits (Periparus ater): female insurance against male infertility?

Assessing reliability and accuracy of qPCR, dPCR and ddPCR for estimating mitochondrial DNA copy number in songbird blood and sperm cells

Sperm mtDNA Copy Number Is Not Associated With Midpiece Size Among Songbirds

Sperm as a speciation phenotype in promiscuous songbirds

Rapid sperm length divergence in a polygynandrous passerine: a mechanism of cryptic speciation?

Arctic Specimens in the Zoological Collections at the Natural History Museum, University of Oslo, Norway (NHMO)

Do female bluethroats without extra-pair offspring have more MHC-compatible social mates?

Effects of fixatives and storage duration on avian sperm morphology

Selection on sperm size in response to promiscuity and variation in female sperm storage organs

Impact of Z chromosome inversions on gene expression in testis and liver tissues in the zebra finch

Correction to: When Older Males Sire More Offspring—Increased Attractiveness or Higher Fertility?

When Older Males Sire More Offspring—Increased Attractiveness or Higher Fertility?

Flagellum tapering and midpiece volume in songbird spermatozoa

Experimental manipulation of sexual traits in barn swallow populations—No evidence for divergent sexual selection

Type specimens of birds in the Natural History Museum, University of Oslo, Norway

Collaborators (7)

Melissah Rowe

Tomas Albrecht

Michael Matschiner

Emma Whittington

Geir Rudolfsen

Oddmund Kleven

Erica Leder

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