World's Best Scientists 2026 revealed!
Colleen Cassady St. Clair

Colleen Cassady St. Clair

D-Index & Metrics

Ecology and Evolution

D-Index
44
Citations
6845
World Ranking
5109
National Ranking
336

Colleen Cassady St. Clair 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 Colleen Cassady St. Clair 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: 98 publications — 17th percentile

17% of scientists in this discipline score the same or lower.

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

Colleen Cassady St. Clair 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 Colleen Cassady St. Clair 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: 44 D-Index — 41st percentile

41% of scientists in this discipline score the same or lower.

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

Overview

Colleen Cassady St. Clair is affiliated with the University of Alberta in Canada and specializes in environmental science with a focus on wildlife ecology and conservation. Their research spans numerous subfields including ecology, genetics, global and planetary change, small animals, and health, toxicology, and mutagenesis.

The scientist's rigorous work addresses several main topics such as wildlife ecology and conservation, human-animal interaction studies, wildlife-road interactions and conservation, animal behavior and welfare studies, urban green space and health, marine animal studies overview, and land use and ecosystem services.

Prominent publication venues where Colleen Cassady St. Clair's research appears include PLoS ONE, Scientific Reports, Nature Ecology & Evolution, Frontiers in Conservation Science, and bioRxiv (Cold Spring Harbor Laboratory). These journals reflect the breadth of their contributions to environmental and biological sciences.

Frequent collaborators in their research projects are Maureen H. Murray, Scott Sugden, Sage Raymond, Seth B. Magle, and Mason Fidino, frequently contributing to collective scientific outputs.

Selected papers from their recent work illustrate a wide range of urban and ecological topics:

  • "Wealth and urbanization shape medium and large terrestrial mammal communities," 2021, Global Change Biology
  • "An altered microbiome in urban coyotes mediates relationships between anthropogenic diet and poor health," 2020, Scientific Reports
  • "Mammals adjust diel activity across gradients of urbanization," 2022, eLife
  • "Effects of artificial light on bird movement and distribution: a systematic map," 2021, Environmental Evidence
  • "Urbanization, climate and species traits shape mammal communities from local to continental scales," 2023, Nature Ecology & Evolution

The scientist's work often intersects urban ecology and the effects of anthropogenic changes on wildlife behavior, health, and community structure. This includes investigating altered microbiomes in urban species, the influence of urbanization on mammal activity patterns, and the role of artificial light pollution in bird dynamics.

Colleen Cassady St. Clair's contribution to environmental science is reflected in both the volume and diversity of their research, highlighting multiple aspects of human-wildlife interactions and conservation biology within urban and broader ecological contexts.

Best Publications

  • SPATIAL RESPONSES OF WOLVES TO ROADS AND TRAILS IN MOUNTAIN VALLEYS

    Jesse Whittington;Colleen Cassady St. Clair;George Mercer

  • Plants Integrate Information About Nutrients and Neighbors

    James F. Cahill;Gordon G. McNickle;Joshua J. Haag;Eric G. Lamb

  • Effects of road networks on bird populations.

    A. V. Kociolek;A. P. Clevenger;C. C. St. Clair;D. S. Proppe

  • Riparian corridors enhance movement of a forest specialist bird in fragmented tropical forest

    Cameron S. Gillies;Colleen Cassady St. Clair

  • Anthropogenic noise decreases urban songbird diversity and may contribute to homogenization.

    Darren S. Proppe;Christopher B. Sturdy;Colleen Cassady St. Clair

  • Tufted puffin reproduction reveals ocean climate variability

    Carina Gjerdrum;Anne M. J. Vallée;Colleen Cassady St. Clair;Douglas F. Bertram

  • Research Priorities from Animal Behaviour for Maximising Conservation Progress.

    Alison L. Greggor;Oded Berger-Tal;Daniel T. Blumstein;Lisa Angeloni

  • Greater consumption of protein-poor anthropogenic food by urban relative to rural coyotes increases diet breadth and potential for human–wildlife conflict

    M. Murray;A. Cembrowski;A. D. M. Latham;V. M. Lukasik

  • High levels of habitat loss and fragmentation limit reproductive success by reducing home range size and provisioning rates of Northern saw-whet owls

    Heather Lynn Hinam;Colleen Cassady St. Clair

  • Path tortuosity and the permeability of roads and trails to wolf movement

    Jesse Whittington;Colleen Cassady St. Clair;George Mercer

  • Predicting the continuum between corridors and barriers to animal movements using Step Selection Functions and Randomized Shortest Paths.

    Manuela Panzacchi;Bram Van Moorter;Olav Strand;Marco Saerens

  • Winter Responses of Forest Birds to Habitat Corridors and Gaps

    Colleen Cassady St. Clair;Marc Bélisle;André Desrochers;Susan Hannon

  • Physiology, Behavior, and Conservation

    Steven J. Cooke;Daniel T. Blumstein;Richard Buchholz;Timothy Caro

  • Elements that promote highway crossing structure use by small mammals in Banff National Park

    Wayne McDonald;Colleen Cassady St Clair

  • Flexible habitat selection by cougars in response to anthropogenic development

    Aliah Adams Knopff;Kyle H. Knopff;Mark S. Boyce;Colleen Cassady St. Clair

  • Cumulative Effects of Barriers on the Movements of Forest Birds

    Marc Bélisle;Colleen Cassady St. Clair

  • Landscape and Traffic Factors Influencing Deer–Vehicle Collisions in an Urban Enviroment

    Janet W. Ng;Charlene Nielsen;Colleen Cassady St. Clair

  • Factors affecting the permeability of transportation and riparian corridors to the movements of songbirds in an urban landscape

    Marie A. Tremblay;Colleen C. St. Clair

  • Poor health is associated with use of anthropogenic resources in an urban carnivore

    Maureen Murray;Mark A. Edwards;Bill Abercrombie;Colleen Cassady St. Clair

  • Focusing the metaphor: plant root foraging behaviour.

    Gordon G. McNickle;Colleen Cassady St. Clair;James F. Cahill

Frequent Co-Authors

Esteban Fernández-Juricic
Esteban Fernández-Juricic Purdue University West Lafayette
Scott E. Nielsen
Scott E. Nielsen University of Alberta
Mark S. Boyce
Mark S. Boyce University of Alberta
Daniel T. Blumstein
Daniel T. Blumstein University of California, Los Angeles
James F. Cahill
James F. Cahill University of Alberta
Lisa Y. Stein
Lisa Y. Stein University of Alberta
William J. Sutherland
William J. Sutherland University of Cambridge
Hong Zhang
Hong Zhang University of Alberta
Craig E. Franklin
Craig E. Franklin University of Queensland
André Desrochers
André Desrochers Université Laval

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Related Online Degrees & Career Pathways

Studying Ecology and Evolution opens the door to a variety of careers—both in scientific research and beyond. Students interested in maximizing their opportunities may also benefit from related online degrees, which offer flexibility and diverse skillsets.

For those wanting a strong analytical foundation, an online math bachelor's degree can be a smart complement, as mathematics is essential for analyzing ecological data and trends. If you are passionate about visual communication and want to convey environmental concepts creatively, online graphic design courses are worth exploring.

Students looking for a flexible learning path should consider an online interdisciplinary studies degree financial aid option. Interdisciplinary programs can combine science and policy, preparing graduates for various roles in conservation, education, and outreach. Career prospects also exist in science communication and academia. For example, those who pursue research, writing, and teaching may want to understand how much do historians make, as income can vary by sector and experience.

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