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Dennis Hasselquist

Dennis Hasselquist

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Ecology and Evolution
Sweden
2026

D-Index & Metrics

Ecology and Evolution

D-Index
83
Citations
24443
World Ranking
717
National Ranking
8

Research.com Recognitions

  • 2026 - Research.com Ecology and Evolution in Sweden Leader Award
  • 2025 - Research.com Ecology and Evolution in Sweden Leader Award

Overview

Dennis Hasselquist is affiliated with Lund University in Sweden. Their research spans the fields of Environmental Science and Biochemistry, Genetics and Molecular Biology, with a particular focus on ecological and genetic studies related to avian species.

The scientist's primary research areas include:

  • Avian ecology and behavior
  • Animal Behavior and Reproduction
  • Wildlife Ecology and Conservation
  • Bird parasitology and diseases
  • Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
  • Chromosomal and Genetic Variations
  • Genetic diversity and population structure

Hasselquist has contributed to publications in various venues, with frequent appearances in:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • Zenodo (CERN European Organization for Nuclear Research)
  • Journal of Avian Biology
  • Frontiers in Ecology and Evolution
  • Science

Some of the recent papers authored include:

  • "Extreme altitudes during diurnal flights in a nocturnal songbird migrant," 2021, Science
  • "Explaining prevalence, diversity and host specificity in a community of avian haemosporidian parasites," 2020, Oikos
  • "Avian Neo-Sex Chromosomes Reveal Dynamics of Recombination Suppression and W Degeneration," 2021, Molecular Biology and Evolution
  • "Telomeres in ecology and evolution: A review and classification of hypotheses," 2021, Molecular Ecology
  • "Wetter climates select for higher immune gene diversity in resident, but not migratory, songbirds," 2020, Proceedings of the Royal Society B Biological Sciences

Frequent co-authors collaborating with Hasselquist include:

  • Bengt Hansson
  • Helena Westerdahl
  • Gintaras Malmiga
  • Maja Tarka
  • Mikkel Willemoes

Best Publications

  • No evidence that carotenoid pigments boost either immune or antioxidant defenses in a songbird

    Rebecca E. Koch;Andreas N. Kavazis;Dennis Hasselquist;Wendy R. Hood

  • Good genes, oxidative stress and condition-dependent sexual signals

    Torbjörn von Schantz;Staffan Bensch;Mats Grahn;Dennis Hasselquist

  • Correlation between male song repertoire, extra-pair paternity and offspring survival in the great reed warbler

    Dennis Hasselquist;Dennis Hasselquist;Staffan Bensch;Torbjörn von Schantz

  • Host specificity in avian blood parasites: a study of Plasmodium and Haemoproteus mitochondrial DNA amplified from birds

    Staffan Bensch;Martin Stjernman;Dennis Hasselquist;Örjan Östman

  • Chronic infection. Hidden costs of infection: chronic malaria accelerates telomere degradation and senescence in wild birds.

    M. Asghar;D. Hasselquist;B. Hansson;P. Zehtindjiev

  • On the adaptive significance of stress-induced immunosuppression

    Lars Råberg;Mats Grahn;Dennis Hasselquist;Erik Svensson

  • Adaptive responses of animals to climate change are most likely insufficient

    Viktoriia Radchuk;Thomas Reed;Céline Teplitsky;Martijn van der Pol

  • Cross-species infection of blood parasites between resident and migratory songbirds in Africa

    Jonas Waldenström;Staffan Bensch;Samuel Kiboi;Dennis Hasselquist

  • Cost of reproduction in a long-lived bird: incubation effort reduces immune function and future reproduction.

    Sveinn Are Hanssen;Dennis Hasselquist;Ivar Folstad;Kjell Einar Erikstad

  • Is avian humoral immunocompetence suppressed by testosterone

    Dennis Hasselquist;James A. Marsh;Paul W. Sherman;John C. Wingfield

  • Energetic stress, immunosuppression and the costs of an antibody response

    Erik Svensson;Lars Råberg;C. Koch;Dennis Hasselquist

  • Maternal transfer of antibodies in vertebrates: trans-generational effects on offspring immunity

    Dennis Hasselquist;Jan-Åke Nilsson

  • Sex differences in immune responses: Hormonal effects, antagonistic selection, and evolutionary consequences.

    Jacob Roved;Helena Westerdahl;Dennis Hasselquist

  • Prevalence of Campylobacter jejuni, Campylobacter lari, and Campylobacter coli in different ecological guilds and taxa of migrating birds.

    Jonas Waldenström;Tina Broman;Inger Carlsson;Dennis Hasselquist

  • POLYGYNY IN GREAT REED WARBLERS: A LONG-TERM STUDY OF FACTORS CONTRIBUTING TO MALE FITNESS

    Dennis Hasselquist

  • Costs of immunity: immune responsiveness reduces survival in a vertebrate

    Sveinn Are Hanssen;Dennis Hasselquist;Ivar Folstad;Kjell Einar Erikstad;Kjell Einar Erikstad

  • Temporal dynamics and diversity of avian malaria parasites in a single host species.

    Staffan Bensch;Jonas Waldenström;Niclas Jonzén;Helena Westerdahl

  • TERRITORY INFIDELITY IN THE POLYGYNOUS GREAT REED WARBLER ACROCEPHALUS ARUNDINACEUS: THE EFFECT OF VARIATION IN TERRITORY ATTRACTIVENESS

    Staffan Bensch;Dennis Hasselquist

  • Associations between malaria and MHC genes in a migratory songbird

    Helena Westerdahl;Jonas Waldenström;Bengt Hansson;Dennis Hasselquist

  • Partial Albinism in a Semi‐Isolated Population of Great Reed Warblers

    Staffan Bensch;Bengt Hansson;Dennis Hasselquist;Bo Nielsen

  • The cost of an immune response: vaccination reduces parental effort

    Lars Råberg;Jan-Åke Nilsson;P Ilmonen;Martin Stjernman

Frequent Co-Authors

Staffan Bensch
Staffan Bensch Lund University
Bengt Hansson
Bengt Hansson Lund University
Jonas Waldenström
Jonas Waldenström Linnaeus University
Åke Lindström
Åke Lindström Lund University
Björn Olsen
Björn Olsen Harvard University
Anders Hedenström
Anders Hedenström Lund University
Henrik G. Smith
Henrik G. Smith Lund University
János Török
János Török Eötvös Loránd University
Kjell Einar Erikstad
Kjell Einar Erikstad Norwegian Institute for Nature Research
John C. Wingfield
John C. Wingfield University of California, Davis

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