World's Best Scientists 2026 revealed!
Alexis Achim

Alexis Achim

D-Index & Metrics

Ecology and Evolution

D-Index
33
Citations
4598
World Ranking
7846
National Ranking
478

Alexis Achim 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 Alexis Achim 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: 110 publications — 25th percentile

25% of scientists in this discipline score the same or lower.

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

Alexis Achim 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 Alexis Achim 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: 33 D-Index — 8th percentile

8% of scientists in this discipline score the same or lower.

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

Overview

Alexis Achim is affiliated with Université Laval in Canada and has contributed extensively to the field of environmental science, with a particular focus on forest ecology and management. Their research encompasses various subfields, including nature and landscape conservation, global and planetary change, environmental engineering, ecology, and atmospheric science.

The main topics in their research include:

  • Forest ecology and management
  • Remote sensing and LiDAR applications
  • Forest ecology and biodiversity studies
  • Tree-ring climate responses
  • Plant water relations and carbon dynamics
  • Fire effects on ecosystems
  • Tree root and stability studies

Alexis Achim has published numerous articles in several scientific journals. Their frequent publication venues include:

  • Forestry An International Journal of Forest Research
  • Forest Ecology and Management
  • Canadian Journal of Forest Research
  • SSRN Electronic Journal
  • Current Forestry Reports

Their recent papers of note include:

  • "The changing culture of silviculture," 2021, Forestry An International Journal of Forest Research
  • "Opportunities and limitations of thinning to increase resistance and resilience of trees and forests to global change," 2022, Forestry An International Journal of Forest Research
  • "Framework for near real-time forest inventory using multi source remote sensing data," 2022, Forestry An International Journal of Forest Research
  • "The motion of trees in the wind: a data synthesis," 2021, Biogeosciences

In addition, the paper "lidR: An R package for analysis of Airborne Laser Scanning (ALS) data" published in 2020 in Remote Sensing of Environment has been widely cited, although this work lists a different primary author.

Collaborations have been an important component of Alexis Achim's research. Frequent coauthors include:

  • Nicholas C. Coops
  • Guillaume Moreau
  • Catherine Chagnon
  • Alexandre Morin-Bernard
  • John P. Caspersen

Best Publications

  • lidR: An R package for analysis of Airborne Laser Scanning (ALS) data

    Jean Romain Roussel;David Auty;Nicholas C. Coops;Piotr Tompalski

  • Slope stability and erosion control : ecotechnological solutions

    J.E. Norris;A. Stokes;S.B. Mickovski;E. Cammeraat

  • Wind loading of trees: influence of tree size and competition

    Sophie E. Hale;Barry A. Gardiner;Axel Wellpott;Bruce C. Nicoll

  • Modelling the vulnerability of balsam fir forests to wind damage

    A. Achim;J.-C. Ruel;B.A. Gardiner;G. Laflamme

  • The stability of different silvicultural systems: a wind-tunnel investigation

    Barry Gardiner;Bryan Marshall;Alexis Achim;Rex Belcher

  • Does steep terrain influence tree stability? A field investigation

    Bruce C Nicoll;Alexis Achim;Shaun Mochan;Barry A Gardiner

  • The relationship between standing tree acoustic assessment and timber quality in Scots pine and the practical implications for assessing timber quality from naturally regenerated stands

    David Auty;Alexis Achim

  • The changing culture of silviculture

    Alexis Achim;Guillaume Moreau;Nicholas C Coops;Jodi N Axelson

  • Removing bias from LiDAR-based estimates of canopy height: Accounting for the effects of pulse density and footprint size

    Jean-Romain Roussel;John Peter Caspersen;Martin Béland;Sean Thomas

  • Models for predicting wood density variation in Scots pine

    David Auty;Alexis Achim;Elspeth Macdonald;Andrew D. Cameron

  • Quantifying the influence of live crown ratio on the mechanical properties of clear wood

    Adam Kuprevicius;David Auty;Alexis Achim;John P. Caspersen

  • Genetic Improvement of White Spruce Mechanical Wood Traits—Early Screening by Means of Acoustic Velocity

    Patrick Lenz;David Auty;Alexis Achim;Jean Beaulieu

  • Effects of early re-spacing on the physical and mechanical properties of Sitka spruce structural timber

    John Moore;Alexis Achim;Andrew Lyon;Shaun Mochan

  • The architecture of Picea sitchensis structural root systems on horizontal and sloping terrain

    B. C. Nicoll;S. Berthier;A. Achim;K. Gouskou

  • Models for predicting microfibril angle variation in Scots pine

    David Auty;Barry A. Gardiner;Alexis Achim;John R. Moore

  • Effect of Tree Spacing on Tree Level Volume Growth, Morphology, and Wood Properties in a 25-Year-Old Pinus banksiana Plantation in the Boreal Forest of Quebec

    François Hébert;Cornelia Krause;Pierre-Yves Plourde;Alexis Achim

  • The motion of trees in the wind: A data synthesis

    Toby D. Jackson;Sarab Sethi;Ebba Dellwik;Nikolas Angelou

  • Predicting the branching properties of Sitka Spruce grown in Great Britain.

    Alexis Achim;Barry Gardiner;Jean-Michel Leban;Renaud Daquitaine

  • Improving tree selection for partial cutting through joint probability modelling of tree vigor and quality

    David Pothier;Mathieu Fortin;David Auty;Simon Delisle-Boulianne

  • Modelling knot morphology as a function of external tree and branch attributes

    E. Duchateau;Fleur Longuetaud;Frédéric Mothe;C. H. Ung

  • Evaluating the effect of precommercial thinning on the resistance of balsam fir to windthrow through experimentation, modelling, and development of simple indices.

    A Achim;J C Ruel;B A Gardiner

  • Composition of ethanolic extracts of wood and bark from Acer saccharum and Betula alleghaniensis trees of different vigor classes

    François St-Pierre;Alexis Achim;Tatjana Stevanovic

Frequent Co-Authors

David Pothier
David Pothier Université Laval
Barry Gardiner
Barry Gardiner INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement
Jean-Claude Ruel
Jean-Claude Ruel Université Laval
John P. Caspersen
John P. Caspersen University of Toronto
David Paré
David Paré Natural Resources Canada
Aaron R. Weiskittel
Aaron R. Weiskittel University of Maine
Philip G. Comeau
Philip G. Comeau University of Alberta
Sergio Rossi
Sergio Rossi Université du Québec à Chicoutimi
Christian Messier
Christian Messier University of Quebec at Montreal
Alexia Stokes
Alexia Stokes INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement

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