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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
713
National Ranking
8

Dennis Hasselquist publication distribution in Ecology and Evolution in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Ecology and Evolution in 2026. The highlighted bar marks where Dennis Hasselquist sits on this spectrum.

37–41 publications: 2 scientists 42–46 publications: 9 scientists 47–51 publications: 10 scientists 52–56 publications: 31 scientists 57–61 publications: 56 scientists 62–66 publications: 91 scientists 67–71 publications: 92 scientists 72–76 publications: 127 scientists 77–81 publications: 173 scientists 82–86 publications: 236 scientists 87–91 publications: 227 scientists 92–96 publications: 240 scientists 97–101 publications: 333 scientists 102–106 publications: 280 scientists 107–111 publications: 300 scientists 112–116 publications: 285 scientists 117–121 publications: 305 scientists 122–126 publications: 287 scientists 127–131 publications: 278 scientists 132–136 publications: 289 scientists 137–141 publications: 273 scientists 142–146 publications: 262 scientists 147–151 publications: 246 scientists 152–156 publications: 235 scientists 157–161 publications: 205 scientists 162–166 publications: 199 scientists 167–171 publications: 174 scientists 172–176 publications: 164 scientists 177–181 publications: 173 scientists 182–186 publications: 189 scientists 187–191 publications: 170 scientists 192–196 publications: 139 scientists 197–201 publications: 128 scientists 202–206 publications: 117 scientists 207–211 publications: 115 scientists 212–216 publications: 107 scientists 217–221 publications: 124 scientists 222–226 publications: 81 scientists 227–231 publications: 82 scientists 232–236 publications: 85 scientists 237–241 publications: 75 scientists 242–246 publications: 66 scientists 247–251 publications: 81 scientists 252–256 publications: 69 scientists 257–261 publications: 70 scientists 262–266 publications: 55 scientists 267–271 publications: 64 scientists 272–276 publications: 49 scientists 277–281 publications: 48 scientists 282–286 publications: 44 scientists 287–291 publications: 45 scientists 292–296 publications: 36 scientists 297–301 publications: 39 scientists 302–306 publications: 38 scientists 307–311 publications: 30 scientists 312–316 publications: 34 scientists 317–321 publications: 25 scientists 322–326 publications: 22 scientists 327–331 publications: 28 scientists 332–336 publications: 30 scientists 337–341 publications: 22 scientists 342–346 publications: 30 scientists 347–351 publications: 26 scientists 352–356 publications: 22 scientists 357–361 publications: 29 scientists 362–366 publications: 21 scientists 367–371 publications: 12 scientists 372–376 publications: 18 scientists 377–381 publications: 17 scientists 382–386 publications: 13 scientists 387–391 publications: 21 scientists 392–396 publications: 13 scientists 397–401 publications: 10 scientists 402–406 publications: 15 scientists 407–411 publications: 8 scientists 412–416 publications: 9 scientists 417–421 publications: 8 scientists 422–426 publications: 4 scientists 427–431 publications: 10 scientists 432–436 publications: 10 scientists 437–441 publications: 5 scientists 442–446 publications: 4 scientists 447–451 publications: 10 scientists 452–456 publications: 2 scientists 457–461 publications: 4 scientists 462–466 publications: 7 scientists 467–471 publications: 7 scientists 472–476 publications: 6 scientists 477–481 publications: 6 scientists 482–486 publications: 3 scientists 487–491 publications: 3 scientists 492–496 publications: 4 scientists 497–501 publications: 4 scientists 502–506 publications: 8 scientists 507–511 publications: 5 scientists 512–516 publications: 4 scientists 517–521 publications: 5 scientists 522–526 publications: 4 scientists 527–530 publications: 5 scientists 531+ publications: 100 scientists
37 publications 531+

This scientist: 221 publications — 80th percentile

80% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 531 publications or more.

Dennis Hasselquist D-index placement in Ecology and Evolution in 2026

The chart shows the D-index (discipline H-index) distribution of Ecology and Evolution scientists ranked by Research.com in 2026. The highlighted bar marks where Dennis Hasselquist sits on this spectrum.

30 D-Index: 95 scientists 31 D-Index: 123 scientists 32 D-Index: 191 scientists 33 D-Index: 245 scientists 34 D-Index: 252 scientists 35 D-Index: 244 scientists 36 D-Index: 249 scientists 37 D-Index: 244 scientists 38 D-Index: 254 scientists 39 D-Index: 254 scientists 40 D-Index: 280 scientists 41 D-Index: 274 scientists 42 D-Index: 266 scientists 43 D-Index: 233 scientists 44 D-Index: 248 scientists 45 D-Index: 208 scientists 46 D-Index: 201 scientists 47 D-Index: 213 scientists 48 D-Index: 207 scientists 49 D-Index: 172 scientists 50 D-Index: 209 scientists 51 D-Index: 199 scientists 52 D-Index: 153 scientists 53 D-Index: 169 scientists 54 D-Index: 163 scientists 55 D-Index: 148 scientists 56 D-Index: 120 scientists 57 D-Index: 146 scientists 58 D-Index: 137 scientists 59 D-Index: 140 scientists 60 D-Index: 104 scientists 61 D-Index: 119 scientists 62 D-Index: 118 scientists 63 D-Index: 99 scientists 64 D-Index: 77 scientists 65 D-Index: 100 scientists 66 D-Index: 86 scientists 67 D-Index: 83 scientists 68 D-Index: 75 scientists 69 D-Index: 94 scientists 70 D-Index: 57 scientists 71 D-Index: 68 scientists 72 D-Index: 59 scientists 73 D-Index: 63 scientists 74 D-Index: 66 scientists 75 D-Index: 60 scientists 76 D-Index: 42 scientists 77 D-Index: 49 scientists 78 D-Index: 39 scientists 79 D-Index: 37 scientists 80 D-Index: 43 scientists 81 D-Index: 41 scientists 82 D-Index: 45 scientists 83 D-Index: 34 scientists 84 D-Index: 40 scientists 85 D-Index: 35 scientists 86 D-Index: 55 scientists 87 D-Index: 24 scientists 88 D-Index: 24 scientists 89 D-Index: 30 scientists 90 D-Index: 23 scientists 91 D-Index: 25 scientists 92 D-Index: 27 scientists 93 D-Index: 27 scientists 94 D-Index: 13 scientists 95 D-Index: 23 scientists 96 D-Index: 12 scientists 97 D-Index: 14 scientists 98 D-Index: 19 scientists 99 D-Index: 16 scientists 100 D-Index: 14 scientists 101 D-Index: 5 scientists 102 D-Index: 21 scientists 103 D-Index: 16 scientists 104 D-Index: 10 scientists 105 D-Index: 7 scientists 106 D-Index: 7 scientists 107 D-Index: 7 scientists 108 D-Index: 6 scientists 109 D-Index: 9 scientists 110 D-Index: 11 scientists 111 D-Index: 12 scientists 112 D-Index: 9 scientists 113 D-Index: 7 scientists 114 D-Index: 3 scientists 115 D-Index: 8 scientists 116 D-Index: 5 scientists 117 D-Index: 11 scientists 118 D-Index: 4 scientists 119 D-Index: 2 scientists 120 D-Index: 5 scientists 121+ D-Index: 100 scientists
30 D-Index 121+

This scientist: 83 D-Index — 92nd percentile

92% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 121 D-Index or more.

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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