World's Best Scientists 2026 revealed!

D-Index & Metrics

Ecology and Evolution

D-Index
38
Citations
5165
World Ranking
6676
National Ranking
415

Jens Roland 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 Jens Roland 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: 95 publications — 15th percentile

15% of scientists in this discipline score the same or lower.

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

Jens Roland 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 Jens Roland 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: 38 D-Index — 23rd percentile

23% of scientists in this discipline score the same or lower.

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

Overview

Jens Roland is affiliated with the University of Alberta in Canada. Their research primarily spans the fields of Environmental Science and Agricultural and Biological Sciences. Across these broad disciplines, they have contributed to multiple subfields including Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation, Genetics, Ecological Modeling, and Global and Planetary Change.

Their research topics cover a range of ecological and biological focuses. Principal themes include plant and animal studies, ecology and vegetation dynamics studies, species distribution and climate change, genetic diversity and population structure, fire effects on ecosystems, tree-ring climate responses, and marine and fisheries research.

Jens Roland has published several papers in notable journals over recent years. Selected publications include:

  • Inclusion of trophic interactions increases the vulnerability of an alpine butterfly species to climate change, 2020, Global Change Biology
  • Spatial variation in early-winter snow cover determines local dynamics in a network of alpine butterfly populations, 2020, Ecography
  • Demographic fluctuations lead to rapid and cyclic shifts in genetic structure among populations of an alpine butterfly, Parnassius smintheus, 2020, Journal of Evolutionary Biology
  • Variable synchrony in insect outbreak cycling across a forest landscape gradient: multi-scale evidence from trembling aspen in Alberta, 2023, Canadian Journal of Forest Research
  • Direct estimates of metapopulation capacity from dispersal show high interannual variability, but little effect of recent forest encroachment on network persistence, 2020, Landscape Ecology

Frequent coauthors collaborating with Jens Roland include Stephen F. Matter, Alessandro Filazzola, Nusha Keyghobadi, Mel Lucas, and Maryam Jangjoo, demonstrating interactions with researchers active in related ecological and biological studies.

Their publication venues reflect a focus on ecological and biological sciences, with articles appearing in journals such as Global Change Biology, Ecography, Journal of Evolutionary Biology, Canadian Journal of Forest Research, and Landscape Ecology.

Best Publications

  • Insect parasitoid species respond to forest structure at different spatial scales

    Jens Roland;Philip D. Taylor

  • ALPINE PARNASSIUS BUTTERFLY DISPERSAL: EFFECTS OF LANDSCAPE AND POPULATION SIZE

    Jens Roland;Nusha Keyghobadi;Sherri Fownes

  • Influence of landscape on the population genetic structure of the alpine butterfly parnassius smintheus (Papilionidae)

    Nusha Keyghobadi;Jens Roland;Curtis Strobeck

  • Large-scale forest fragmentation increases the duration of tent caterpillar outbreak

    Jens Roland

  • Critical issues in biological control.

    Manfred Mackauer;Lester E. Ehler;Jens Roland

  • Genetic differentiation and gene flow among populations of the alpine butterfly, Parnassius smintheus, vary with landscape connectivity.

    Nusha Keyghobadi;Nusha Keyghobadi;Jens Roland;Curtis Strobeck

  • Among- and within-patch components of genetic diversity respond at different rates to habitat fragmentation: an empirical demonstration.

    Nusha Keyghobadi;Jens Roland;Stephen F Matter;Curtis Strobeck

  • Melanism and diel activity of alpine Colias (Lepidoptera: Pieridae).

    Jens Roland

  • An experimental examination of the effects of habitat quality on the dispersal and local abundance of the butterfly Parnassius smintheus

    Stephen F. Matter;Jens Roland

  • Biological Control of the Winter Moth

    J. Roland;D. G. Embree

  • Connectivity rescues genetic diversity after a demographic bottleneck in a butterfly population network

    Maryam Jangjoo;Stephen F. Matter;Jens Roland;Nusha Keyghobadi

  • The influence of matrix habitat on Aphthona flea beetle immigration to leafy spurge patches.

    Ian D. Jonsen;Robert S. Bourchier;Jens Roland

  • Even smaller radar tags on insects

    Jens Roland;Graham McKinnon;Chris Backhouse;Philip D. Taylor

  • Reproductive asynchrony in natural butterfly populations and its consequences for female matelessness

    Justin M. Calabrese;Leslie Ries;Stephen F. Matter;Diane M. Debinski

  • Edge avoidance and movement of the butterfly Parnassius smintheus in matrix and non-matrix habitat

    J. Andrew Ross;Stephen F. Matter;Jens Roland

  • Moth Diversity in a Fragmented Habitat: Importance of Functional Groups and Landscape Scale in the Boreal Forest

    B. C. Schmidt;J. Roland

  • MIGRATION AND SURVIVAL OF PARNASSIUS SMINTHEUS: DETECTING EFFECTS OF HABITAT FOR INDIVIDUAL BUTTERFLIES

    Stephen F. Matter;Stephen F. Matter;Stephen F. Matter;Jens Roland;Atte Moilanen;Ilkka Hanski

  • Variability in winter climate and winter extremes reduces population growth of an alpine butterfly.

    Jens Roland;Stephen F. Matter

  • After the decline: what maintains low winter moth density after successful biological control?

    Jens Roland

  • Reduced transmission of forest tent caterpillar (Lepidoptera : Lasiocampidae) nuclear polyhedrosis virus at the forest edge

    Jens Roland;William J. Kauppp

  • Improved insect performance from host-plant defoliation: winter moth on oak and apple

    Jens Roland;Judith H. Myers

Frequent Co-Authors

Ian D. Jonsen
Ian D. Jonsen Macquarie University
Curtis Strobeck
Curtis Strobeck University of Alberta
Tomas Roslin
Tomas Roslin Swedish University of Agricultural Sciences
Philip D. Taylor
Philip D. Taylor Acadia University
Susan J. Hannon
Susan J. Hannon University of Alberta
Mark A. Lewis
Mark A. Lewis University of Victoria
Judith H. Myers
Judith H. Myers University of British Columbia
Atte Moilanen
Atte Moilanen University of Helsinki
William F. Fagan
William F. Fagan University of Maryland, College Park
Brendan Mackey
Brendan Mackey Griffith University

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