World's Best Scientists 2026 revealed!
Marcel Klaassen

Marcel Klaassen

D-Index & Metrics

Ecology and Evolution

D-Index
68
Citations
13408
World Ranking
1556
National Ranking
130

Marcel Klaassen 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 Marcel Klaassen 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: 243 publications — 84th percentile

84% of scientists in this discipline score the same or lower.

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

Marcel Klaassen 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 Marcel Klaassen 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: 68 D-Index — 82nd percentile

82% of scientists in this discipline score the same or lower.

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

Overview

Marcel Klaassen is affiliated with Deakin University in Australia and has contributed to research primarily within the fields of Environmental Science and Medicine. Their work spans a range of subfields including Ecology, Epidemiology, Infectious Diseases, Agronomy and Crop Science, and Ecological Modeling.

Their research focuses on key topics such as Influenza Virus Research Studies, Avian ecology and behavior, Viral Infections and Vectors, Animal Disease Management and Epidemiology, Wildlife Ecology and Conservation, Species Distribution and Climate Change, and Animal Virus Infections Studies.

Recent notable publications include:

  • "Shape-shifting: changing animal morphologies as a response to climatic warming" (2021, Trends in Ecology & Evolution)
  • "Metagenomic characterisation of avian parvoviruses and picornaviruses from Australian wild ducks" (2020, Scientific Reports)
  • "The plight and role of wild birds in the current bird flu panzootic" (2023, Nature Ecology & Evolution)
  • "RNA virome abundance and diversity is associated with host age in a bird species" (2021, Virology)
  • "Metagenomic characterisation of additional and novel avian viruses from Australian wild ducks" (2020, Scientific Reports)

Marcel Klaassen frequently collaborates with other researchers such as Michelle Wille, Ariful Islam, Mohammad Mahmudul Hassan, Tobias A. Ross, and Sara Ryding. The collaboration counts indicate repeated partnerships, reflecting active engagement within their research community.

They have published extensively in various venues, with the highest number of publications appearing in bioRxiv (Cold Spring Harbor Laboratory), followed by Movement Ecology, Trends in Ecology & Evolution, Scientific Reports, and the International Journal of Infectious Diseases.

Best Publications

  • Flying, fasting, and feeding in birds during migration: a nutritional and physiological ecology perspective

    Scott R. McWilliams;Christopher Guglielmo;Barbara Pierce;Marcel Klaassen

  • Hampered Foraging and Migratory Performance in Swans Infected with Low-Pathogenic Avian Influenza A Virus

    Jan A. van Gils;Vincent J. Munster;Reinder Radersma;Daan Liefhebber

  • METABOLIC CONSTRAINTS ON LONG-DISTANCE MIGRATION IN BIRDS

    Marcel Klaassen

  • Body shrinkage due to Arctic warming reduces red knot fitness in tropical wintering range

    Jan A. van Gils;Simeon Lisovski;Tamar Lok;Tamar Lok;Włodzimierz Meissner

  • Ornithology. Arctic waders are not capital breeders.

    Marcel Klaassen;Åke Lindström;Åke Lindström;Hans Meltofte;Theunis Piersma

  • ENERGY-EXPENDITURE DURING FREE FLIGHT IN TRAINED AND FREE-LIVING EURASIAN KESTRELS (FALCO-TINNUNCULUS)

    Dirkjan Masman;Marcel Klaassen

  • Long-distance endozoochorous dispersal of submerged macrophyte seeds by migratory waterbirds in northern Europe - a critical review of possibilities and limitations

    Preben Clausen;Bart A. Nolet;A.D. Fox;Marcel Klaassen

  • Wingbeat frequency and the body drag anomaly: wind-tunnel observations on a thrush nightingale (Luscinia luscinia) and a teal (Anas crecca)

    C. J. Pennycuick;Marcel Klaassen;Anders Kvist;Åke Lindström

  • Small seed size increases the potential for dispersal of wetland plants by ducks

    Merel B. Soons;Cornelis Van Der Vlugt;Bart Van Lith;Gerrit W. Heil

  • Juveniles and migrants as drivers for seasonal epizootics of avian influenza virus.

    Jacintha G. B. van Dijk;Bethany J. Hoye;Josanne H. Verhagen;Bart A. Nolet

  • Gut travellers: Internal dispersal of aquatic organisms by waterfowl

    Casper H. A. van Leeuwen;Casper H. A. van Leeuwen;Gerard van der Velde;Gerard van der Velde;Jan M. van Groenendael;Marcel Klaassen;Marcel Klaassen;Marcel Klaassen

  • Cues and the optimal timing of activities under environmental changes

    John M. McNamara;Zoltan Barta;Marcel Klaassen;Silke Bauer

  • Moult and basal metabolic costs in males of two subspecies of stonechats: the European Saxicola torquata rubicula and the East African S. t. axillaris

    Marcel Klaassen

  • ENERGETICS OF FATTENING AND STARVATION IN THE LONG-DISTANCE MIGRATORY GARDEN WARBLER, SYLVIA BORIN, DURING THE MIGRATORY PHASE

    M. Klaassen;M. Klaassen;H. Biebach

  • Surveillance of wild birds for avian influenza virus.

    Bethany J. Hoye;Vincent J. Munster;Hiroshi Nishiura;Marcel Klaassen

  • Ecophysiology of avian migration in the face of current global hazards

    Marcel Klaassen;Bethany J. Hoye;Bart A. Nolet;William A. Buttemer

  • How did this snail get here? Several dispersal vectors inferred for an aquatic invasive species

    C.H.A. Van Leeuwen;N. Huig;G. Van der velde;G. Van der velde;T.A. Van Alen

  • Unexpected diversity in socially synchronized rhythms of shorebirds

    Martin Bulla;Mihai Valcu;Adriaan M. Dokter;Alexei G. Dondua

  • Modelling behavioural and fitness consequences of disturbance for geese along their spring flyway

    Marcel Klaassen;Silke Bauer;Jesper Madsen;Ingunn Tombre

  • Effects of snow cover on the timing and success of reproduction in high-Arctic pink-footed geese Anser brachyrhynchus

    Jesper Madsen;Mikkel Tamstorf;Marcel Klaassen;Nina Eide

  • Factors affecting the site of investment, and the reliance on savings for arctic breeders : the capital–income dichotomy revisited

    Marcel Klaassen;Kenneth F. Abraham;Robert L. Jefferies;Mark Vrtiska

  • Estimating the contribution of carnivorous waterbirds to nutrient loading in freshwater habitats

    Steffen Hahn;Silke Bauer;Marcel Klaassen

Frequent Co-Authors

Bart A. Nolet
Bart A. Nolet University of Amsterdam
Åke Lindström
Åke Lindström Lund University
Theunis Piersma
Theunis Piersma University of Groningen
Soren Alexandersen
Soren Alexandersen Deakin University
Ron A. M. Fouchier
Ron A. M. Fouchier Erasmus University Rotterdam
Bruno J. Ens
Bruno J. Ens University of Groningen
Jesper Madsen
Jesper Madsen Aarhus University
Aeron C. Hurt
Aeron C. Hurt Roche (Switzerland)
Mang Shi
Mang Shi Sun Yat-sen University
Edward C. Holmes
Edward C. Holmes University of Sydney

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring Ecology and Evolution can lead to diverse career paths, from environmental research to roles in education and community support. Many students pursue related online degrees to complement their interests and broaden job prospects. For those interested in the behavioral side of ecological issues, a masters in child psychology online can provide insights into developmental and social impacts on ecosystems.

Counseling and mental health are also important fields closely linked to social outcomes in environmental work. Those seeking affordable options can look at the cheapest masters in counseling online to develop critical communication and support skills.

If clinical practice appeals to you, clinical psychology programs online are available to help students qualify for roles in mental health directly tied to human wellbeing and broader ecological challenges.

For those eager to enter the workforce quickly, pursuing an accelerated human services degree online can offer fast-track routes into community outreach, advocacy, and support positions—many of which interface with environmental education and action.

Best Scientists Citing Marcel Klaassen

Trending Scientists

Recently Published Articles