World's Best Scientists 2026 revealed!
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Animal Science and Veterinary
South Africa
2026

D-Index & Metrics

Animal Science and Veterinary

D-Index
39
Citations
7199
World Ranking
1247
National Ranking
11

Ecology and Evolution

D-Index
40
Citations
7955
World Ranking
6029
National Ranking
64

Colleen T. Downs publication distribution in Animal Science and Veterinary in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where Colleen T. Downs sits on this spectrum.

29–33 publications: 1 scientists 34–38 publications: 6 scientists 39–43 publications: 17 scientists 44–48 publications: 23 scientists 49–53 publications: 28 scientists 54–58 publications: 44 scientists 59–63 publications: 66 scientists 64–68 publications: 75 scientists 69–73 publications: 71 scientists 74–78 publications: 85 scientists 79–83 publications: 108 scientists 84–88 publications: 105 scientists 89–93 publications: 84 scientists 94–98 publications: 103 scientists 99–103 publications: 97 scientists 104–108 publications: 95 scientists 109–113 publications: 89 scientists 114–118 publications: 88 scientists 119–123 publications: 109 scientists 124–128 publications: 93 scientists 129–133 publications: 89 scientists 134–138 publications: 95 scientists 139–143 publications: 92 scientists 144–148 publications: 80 scientists 149–153 publications: 75 scientists 154–158 publications: 74 scientists 159–163 publications: 67 scientists 164–168 publications: 53 scientists 169–173 publications: 62 scientists 174–178 publications: 63 scientists 179–183 publications: 50 scientists 184–188 publications: 55 scientists 189–193 publications: 50 scientists 194–198 publications: 27 scientists 199–203 publications: 44 scientists 204–208 publications: 31 scientists 209–213 publications: 28 scientists 214–218 publications: 38 scientists 219–223 publications: 33 scientists 224–228 publications: 36 scientists 229–233 publications: 29 scientists 234–238 publications: 35 scientists 239–243 publications: 23 scientists 244–248 publications: 24 scientists 249–253 publications: 29 scientists 254–258 publications: 28 scientists 259–263 publications: 21 scientists 264–268 publications: 25 scientists 269–273 publications: 11 scientists 274–278 publications: 18 scientists 279–283 publications: 13 scientists 284–288 publications: 18 scientists 289–293 publications: 10 scientists 294–298 publications: 12 scientists 299–303 publications: 11 scientists 304–308 publications: 15 scientists 309–313 publications: 14 scientists 314–318 publications: 14 scientists 319–323 publications: 8 scientists 324–328 publications: 8 scientists 329–333 publications: 13 scientists 334–338 publications: 14 scientists 339–343 publications: 13 scientists 344–348 publications: 10 scientists 349–353 publications: 11 scientists 354–358 publications: 5 scientists 359–363 publications: 8 scientists 364–368 publications: 8 scientists 369–373 publications: 6 scientists 374–378 publications: 7 scientists 379–383 publications: 8 scientists 384–388 publications: 3 scientists 389–393 publications: 4 scientists 394–398 publications: 5 scientists 399–403 publications: 8 scientists 404–408 publications: 5 scientists 409–413 publications: 4 scientists 414–418 publications: 3 scientists 419–423 publications: 8 scientists 424–428 publications: 5 scientists 429–433 publications: 3 scientists 434–438 publications: 5 scientists 439–441 publications: 5 scientists 442+ publications: 99 scientists
29 publications 442+

This scientist: 425 publications — 96th percentile

96% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 442 publications or more.

Colleen T. Downs D-index placement in Animal Science and Veterinary in 2026

The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where Colleen T. Downs sits on this spectrum.

20 D-Index: 5 scientists 21 D-Index: 22 scientists 22 D-Index: 31 scientists 23 D-Index: 44 scientists 24 D-Index: 53 scientists 25 D-Index: 66 scientists 26 D-Index: 80 scientists 27 D-Index: 101 scientists 28 D-Index: 106 scientists 29 D-Index: 116 scientists 30 D-Index: 154 scientists 31 D-Index: 158 scientists 32 D-Index: 143 scientists 33 D-Index: 137 scientists 34 D-Index: 126 scientists 35 D-Index: 134 scientists 36 D-Index: 112 scientists 37 D-Index: 115 scientists 38 D-Index: 105 scientists 39 D-Index: 111 scientists 40 D-Index: 107 scientists 41 D-Index: 87 scientists 42 D-Index: 74 scientists 43 D-Index: 62 scientists 44 D-Index: 61 scientists 45 D-Index: 41 scientists 46 D-Index: 51 scientists 47 D-Index: 43 scientists 48 D-Index: 28 scientists 49 D-Index: 47 scientists 50 D-Index: 40 scientists 51 D-Index: 34 scientists 52 D-Index: 33 scientists 53 D-Index: 43 scientists 54 D-Index: 16 scientists 55 D-Index: 32 scientists 56 D-Index: 21 scientists 57 D-Index: 18 scientists 58 D-Index: 28 scientists 59 D-Index: 33 scientists 60 D-Index: 17 scientists 61 D-Index: 21 scientists 62 D-Index: 18 scientists 63 D-Index: 21 scientists 64 D-Index: 9 scientists 65 D-Index: 20 scientists 66 D-Index: 11 scientists 67 D-Index: 16 scientists 68 D-Index: 12 scientists 69 D-Index: 17 scientists 70 D-Index: 13 scientists 71 D-Index: 15 scientists 72 D-Index: 11 scientists 73 D-Index: 11 scientists 74 D-Index: 14 scientists 75 D-Index: 5 scientists 76 D-Index: 6 scientists 77+ D-Index: 100 scientists
20 D-Index 77+

This scientist: 39 D-Index — 61st percentile

61% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 77 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Animal Science and Veterinary in South Africa Leader Award

Overview

Colleen T. Downs is affiliated with the University of KwaZulu-Natal in South Africa. Their research primarily spans the field of Environmental Science, with a total of 388 publications contributing to this area. Within this broad field, Downs has focused on several subfields including Ecology, Nature and Landscape Conservation, Ecology, Evolution, Behavior and Systematics, Global and Planetary Change, and Ecological Modeling.

Their work addresses key topics within environmental and wildlife research, notably:

  • Wildlife Ecology and Conservation
  • Ecology and Vegetation Dynamics Studies
  • Avian ecology and behavior
  • Animal Ecology and Behavior Studies
  • Wildlife-Road Interactions and Conservation
  • Fish Ecology and Management Studies
  • Species Distribution and Climate Change

Downs has contributed to multiple papers in various scientific journals. Some recent publications include:

  • A global horizon scan of the future impacts of robotics and autonomous systems on urban ecosystems, 2021, Nature Ecology & Evolution
  • The future of sub-Saharan Africa's biodiversity in the face of climate and societal change, 2022, Frontiers in Ecology and Evolution
  • Effects of habitat-patch size and patch isolation on the diversity of forest birds in the urban-forest mosaic of Durban, South Africa, 2020, Urban Ecosystems
  • Can I afford to publish? A dilemma for African scholars, 2021, Ecology Letters
  • Snapshot Safari: A large-scale collaborative to monitor Africa's remarkable biodiversity, 2021, South African Journal of Science

Frequent collaborators in their research include:

  • David A. Ehlers Smith
  • Yvette C. Ehlers Smith
  • Tinyiko C. Shivambu
  • Ndivhuwo Shivambu
  • Gordon O'Brien

Downs has published extensively in a range of academic venues. Publications appear most often in:

  • African Journal of Ecology
  • Ostrich
  • Global Ecology and Conservation
  • Urban Ecosystems
  • Journal für Ornithologie

Best Publications

  • Impact of protection on nest take and nesting success of parrots in Africa, Asia and Australasia

    D. J. Pain;T. L. F. Martins;M. Boussekey;S. H. Diaz

  • A global horizon scan of the future impacts of robotics and autonomous systems on urban ecosystems

    Mark A. Goddard;Mark A. Goddard;Zoe G. Davies;Solène Guenat;Mark J. Ferguson

  • The role of avian frugivores in germination of seeds of fleshy-fruited invasive alien plants

    Lorinda A. Jordaan;Steven D. Johnson;Colleen T. Downs

  • Impact of land use on occupancy and abundance of terrestrial mammals in the Drakensberg Midlands, South Africa

    Tharmalingam Ramesh;Colleen T. Downs

  • The future of sub-Saharan Africa’s biodiversity in the face of climate and societal change

    Unknown

  • Use of an unmanned aerial vehicle (drone) to survey Nile crocodile populations: A case study at Lake Nyamithi, Ndumo game reserve, South Africa

    Mohamed A. Ezat;Camille J. Fritsch;Colleen T. Downs

  • Sugar digestion efficiencies of Gurney's sugarbirds, malachite sunbirds, and black sunbirds.

    Colleen T. Downs

  • A survey of wildlife rehabilitation in South Africa: is there a need for improved management?

    K. Wimberger;C. T. Downs;R. S. Boyes

  • Impact of farmland use on population density and activity patterns of serval in South Africa

    Tharmalingam Ramesh;Colleen T. Downs

  • NOCTURNAL HETEROTHERMY AND TORPOR IN THE MALACHITE SUNBIRD (NECTARINIA FAMOSA)

    Colleen T. Downs;Mark Brown

  • Effects of habitat-patch size and patch isolation on the diversity of forest birds in the urban-forest mosaic of Durban, South Africa

    Mfundo S. T. Maseko;Manqoba M. Zungu;David A. Ehlers Smith;Yvette C. Ehlers Smith

  • Diet of the Cape Parrot, Poicephalus robustus, in Afromontane forests in KwaZulu-Natal, South Africa

    J.O. Wirminghaus;Colleen T. Downs;C.T. Symes;M.R. Perrin

  • Abundance and activity patterns of the Cape parrot (Poicephalus robustus) in two afromontane forests in South Africa

    J.O. Wirminghaus;Colleen T. Downs;M.R. Perrin;C.T. Symes

  • Abundance and home ranges of feral cats in an urban conservancy where there is supplemental feeding: a case study from South Africa

    Jaclyn Tennent;Colleen T. Downs

  • Physiological variation in amethyst sunbirds (Chalcomitra amethystina) over an altitudinal gradient in winter.

    Claire V. Lindsay;Colleen T. Downs;Mark Brown

  • How to build science-action partnerships for local land-use planning and management: Lessons from Durban, South Africa

    Jessica Cockburn;Mathieu Rouget;Rob Slotow;Debra Roberts

  • Diet of the crowned eagle ( Stephanoaetus coronatus ) in an urban landscape: potential for human-wildlife conflict?

    Shane C. McPherson;Mark Brown;Colleen T. Downs

  • Fruit nutritional composition and non-nutritive traits of indigenous South African tree species

    A.-L. Wilson;C.T. Downs

  • More than eating dirt: a review of avian geophagy‡

    Colleen T. Downs;Ian P. Bredin;Peter D. Wragg;Peter D. Wragg

  • The role of shading behaviour in the thermoregulation of breeding crowned plovers (Vanellus coronatus)

    Mark Brown;Colleen T Downs

  • Seasonal effects on thermoregulatory responses of the Rock Kestrel, Falco rupicolis

    N.G. Bush;M. Brown;C.T. Downs

  • Body temperature and basking behaviour of Nile crocodiles (Crocodylus niloticus) during winter

    Colleen T. Downs;Cathy Greaver;Ricky Taylor

  • Postrelease success of two rehabilitated vervet monkey (Chlorocebus aethiops) troops in KwaZulu-Natal, South Africa.

    Kirsten Wimberger;Colleen T Downs;Michael R Perrin

Frequent Co-Authors

Steven D. Johnson
Steven D. Johnson University of KwaZulu-Natal
Keith L. Bildstein
Keith L. Bildstein Hawk Mountain Sanctuary
Kevin P. Kirkman
Kevin P. Kirkman University of KwaZulu-Natal
Martyn C. Lucas
Martyn C. Lucas Durham University
Ara Monadjem
Ara Monadjem University of Pretoria
Carlos A. Peres
Carlos A. Peres University of East Anglia
Victor Wepener
Victor Wepener North-West University
Graham Jewitt
Graham Jewitt IHE Delft Institute for Water Education
Patrick J. O’Farrell
Patrick J. O’Farrell University of Cape Town
Michael J. Lawes
Michael J. Lawes University of KwaZulu-Natal

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Related Online Degrees & Career Pathways

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