October 27, 2020  

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Alain Leduc

Dr. Alain Leduc obtained his PhD in Environmental Science from UQAM in 1992 and the subject of his thesis was regional biogeography. Since 1993, he worked with the Interuniversity Research Group in Forest Ecology (GREFi) as a professor “sous-octroi”. Recently, he joined other members of the NSERC/UQAT/UQAM Industrial Chair in Sustainable Forest Management with whom he was collaborating for several years already. He specializes in landscape ecology and his main field of interest is the influence of the scale on the development of species response model to their environment. Most recently, his work is directed towards growth prediction of young post-harvest stands based on large scale forest inventories (8 to 30 years old).

Research orientation

Development of a sustainable forestry adapted to northern ecosystems

1. Large scale regionalization of northern forests based on fire regime and forest cover composition. A well adapted forest management of the boreal forest should be based upon a good recognition of his spatial variability. Regionalisation should reflect the main ecological factors that are structuring the forest mosaic. Most of the current ecological classification systems aren’t taking into account disturbance regime variations when addressing regionalization of the territory. This part of the study aims at adapting ecological classification to a regionalization based upon the natural disturbance regimes.

2. Including forest fire risk when calculating annual allowable yield. The northern boreal forest is more subject to fire than the mixed boreal forest. Concern to whether or not it’s management in terms of silvicultural use is going to sustain an industrial activity is arising. This milestone will provide an illustration, by way of simulations, of the supply loss at risk for the forest industry when managing these territories. The model will be able to distinguish two potential sources of supply loss: the immediate loss related to forest fires and the future loss resulting from regeneration failure

Characterization and prediction of the development of young post-harvest stand

The Eastern boreal forest has sustained an industrial forest management for almost thirty years. In regions where natural forests dominate, the annual allowable yield is estimated using standing wood volumes and rotation times while in managed forests, the evaluation will rather be based on a the knowledge and prediction of post-harvest stand development. In fact, the forest industry of Eastern Canada is evolving towards a period where timber supply will be resting on a capital in constant renewal rather than on a large existing forest capital. In this context, it becomes crucial to be able to make early diagnosis of the development and productivity of post-harvest stands to evaluate the available timber supply of a given region.

The objective of our research is to establish links between past silvicultural practices and prevalent conditions of second-growth stands. We also wish to evaluate the different management options influencing establishment and/or growth of stands. On a shorter term, this project aims at:

1. Evaluating regeneration quality (site classification based on distribution coefficient, density and growth of commercial stems); defining the relationship between regeneration state and environmental conditions, which can be either permanent (physical attributes) or non-permanent (type of harvest, type of harvested stands, competitive vegetation, etc.)

2. Refining actual prediction models of regeneration strata development. Define regeneration delay period and development curves based on the actual characteristics of pole stages.

Email : leduc.alain[at]uqam.ca

Publications : (see most recent)

  1. Simon Laquerre, Brian Harvey, Alain Leduc, 2011. Spatial analysis of response of trembling aspen patches to clearcutting in black spruce-dominated stands For. Chron. 87(1):77-85

  2. Annie Belleau, Alain Leduc, Nicolas Lecomte, Yves Bergeron, 2011. Forest succession rate and pathways on different surface deposit types in the boreal forest of northwestern Quebec Ecoscience 18(4):329-340 DOI:10.2980/18-4-3393

  3. Amar Madoui, Alain Leduc, Sylvie Gauthier, Yves Bergeron, 2010. Spatial pattern analyses of post-fire residual stands in the black spruce boreal forest of western Quebec. International Journal of Wildland Fire 19(8):1110-1126 DOI:10.1071/WF10049

  4. Simon Laquerre, Alain Leduc, Brian Harvey, 2009. Augmentation du couvert en peuplier faux-tremble dans les pessières noires du nord-ouest du Québec après coupe totale. Ecoscience 16(4):483-491 DOI:10.2980/16-4-3252

  5. Yassine Messaoud, Yves Bergeron, Alain Leduc, 2007. Ecological factors explaining the location of the boundary between the mixedwood and coniferous bioclimatic zones in the boreal biome of eastern North America. Global Ecology and Biogeography. 16:90-102.

  6. Sophie Gachet, Alain Leduc, Yves Bergeron, Thuy Nguyen-Xuan, Francine Tremblay, 2007. Understory vegetation of boreal tree plantations: Differences in relation to previous land use and natural forests. For. Ecol. Manage. 242(1):49-57. DOI:10.1016/j.foreco.2007.01.037

  7. Annie Belleau, Yves Bergeron, Alain Leduc, Sylvie Gauthier, Andrew Fall, 2007. Using spatially explicit simulations to explore size distribution and spacing of regenerating areas produced by wildfires: recommendations for designing harvest agglomerations for the Canadian boreal forest. For. Chron. 83(1):72-82.

  8. Simon Laquerre, Alain Leduc, Brian Harvey, 2006. Lumière sur un feuillu de lumière. Le Couvert Boréal pages 26.

  9. Yves Bergeron, Dominic Cyr, Ronald Charles Drever, Micheal Flannigan, Sylvie Gauthier, Daniel Kneeshaw, Eve Lauzon, Alain Leduc, Héloïse Le Goff, Daniel Lesieur, Kimberly Logan, 2006. Past, current, and future fire frequencies in Quebec's commercial forests: implications for the cumulative effects of harvesting and fire on age-class structure and natural disturbance-based management. Can. J. For. Res. 36(11):2737-2744. DOI:10.1139/X06-177

  10. Marie-Claire Namroud, Alain Leduc, Francine Tremblay, Yves Bergeron, 2006. Simulations of clonal species genotypic diversity – trembling aspen (Populus tremuloïdes) as a case study. Cons. Gen.  DOI:10.1007/s10592-005-9051-3

  11. Karelle Jayen, Alain Leduc, Yves Bergeron, 2006. Rôle de la sévérité des feux dans le succès de la régénération du pin Gris et de l’épinette noire. Le Couvert Boréal pages 26-28.

  12. Karelle Jayen, Alain Leduc, Yves Bergeron, 2006. Effect of fire severity on regeneration success in the boreal forest of north-west Quebec, Canada. Ecoscience 13(2):143-151.

  13. Andrew Park, Daniel Kneeshaw, Yves Bergeron, Alain Leduc, 2005. Spatial relationships and tree species associations across a 236-year boreal mixedwood chronosequence. Can. J. For. Res. 35(3):750-761. DOI:10.1139/x04-199

  14. Virginie-Arielle Angers, Christian Messier, Marilou Beaudet, Alain Leduc, 2005. Comparing composition and structure in old-growth and harvested (selection and diameter-limit cuts) northern hardwood stands in Quebec. For. Ecol. Manage. 217(2-3):275-293. DOI:10.1016/j.foreco.2005.06.008

  15. Héloïse Le Goff, Alain Leduc, Yves Bergeron, Micheal Flannigan, 2005. The adaptive capacity of forest management to changing fire regimes in the boreal forest of Quebec. For. Chron. 81(4):582-592.

  16. Patrick Lefort, Alain Leduc, Sylvie Gauthier, Yves Bergeron, 2004. Recent fire regime (1945-1998) in the boreal forest of western Quebec. Ecoscience 11 (4):433-445.

  17. Yves Bergeron, Micheal Flannigan, Sylvie Gauthier, Alain Leduc, Patrick Lefort, 2004. Past, current and future fire frequency in the Canadian boreal forest: Implications for sustainable forest management. Ambio : A Journal of the Human Environment 33(6):356-360. DOI:10.1579/0044-7447-33.6.356

  18. Sylvie Gauthier, Thuy Nguyen-Xuan, Yves Bergeron, Alain Leduc, Pierre Drapeau, Pierre Grondin, 2004. Developing Forest Management Strategies Based on Fire Regimes in Northwestern Quebec, Canada. Chapter 18. In A.H. Perera, L.J. Buse et M.G. Weber. Emulating Natural Forest Landscape Disturbances : Concepts and Applications. Columbia University Press, New York, NY.

  19. Marilou Beaudet, Christian Messier, Alain Leduc, 2004. Understorey light profiles in temperate deciduous forests: recovery process following selection cutting. Journal of Ecology 92 (2): 328-338.

  20. Pierre Drapeau, Alain Leduc, Yves Bergeron, Sylvie Gauthier, Jean-Pierre Savard, 2003. Les communautés d'oiseaux des vieilles forêts de la pessière à mousses de la ceinture d'argile : Problèmes et solutions face à l'aménagement forestier. For. Chron. 79(3):531-540.

  21. Pierre Drapeau, Alain Leduc, Yves Bergeron, Sylvie Gauthier, Jean-Pierre Savard, 2003. Bird communities in old lichen-black spruce stands in the clay belt: Problems and solutions regarding forest management For. Chron. 79(3):531-540.

  22. Alain Leduc, Christian Messier, Pierre Drapeau, Brian Harvey, Yves Bergeron, Louis Imbeau, Alison Munson, Louis Bélanger, Luc Bouthillier, Marcel Darveau, Luc Sirois, Daniel Kneeshaw, 2002. Modification du RNI - une timide ouverture à une gestion plus adaptée aux réalités régionales. L'Aubelle 140:20-21.

  23. Sybille Haeussler, L Bedford, Alain Leduc, Yves Bergeron, J.-M. Kranabetter, 2002. Silvicultural disturbance severity and plant communities of the southern Canadian boreal forest. Silva Fennica 36(1):307-327

  24. Brian Harvey, Alain Leduc, Sylvie Gauthier, Yves Bergeron, 2002. Stand-landscape intergration in natural disturbance-based mangement of the southern boreal forest. For. Ecol. Manage. 155(1-3):369-385. DOI:10.1016/S0378-1127(01)00573-4

  25. Yves Bergeron, Alain Leduc, Brian Harvey, Sylvie Gauthier, 2002. Natural fire regime : A guide for sustainable forest management in the Canadian boreal forest. Silva Fennica 36(1):81-95

  26. Alain Leduc, Thuy Nguyen-Xuan, Yves Bergeron, Brian Harvey, Sylvie Gauthier, Pierre Drapeau, 2002. L'aménagement par cohorte: de la rhétorique à la pratique. Chaire industrielle CRSNG UQAT-UQAM-AFD. Fiche technique 3. 4 pages.

  27. Sonia Légaré, Yves Bergeron, Alain Leduc, David Paré, 2001. Comparaison of the understory vegetation in boreal forest types of southwest Québec. Can. J. Bot. 79(9):1019-1027.

  28. Pierre Drapeau, Alain Leduc, Jean-Pierre Savard, Yves Bergeron, 2001. Les oiseaux forestiers, des indicateurs des changements des mosaïques forestières boréales. Numéro spécial: La forêt boréale: recherche et biodiversité. Le Naturaliste canadien 125:41-46.

  29. Sylvie Gauthier, Alain Leduc, Brian Harvey, Yves Bergeron, Pierre Drapeau, 2001. Les perturbations naturelles et la diversité écosystémique. Numéro spécial: La forêt boréale: recherche et biodiversité. Le Naturaliste canadien 125:10-17.

  30. Alain Leduc, 2001. Réponse des écosystèmes forestiers aux pratiques sylvicoles : une analyse rétrospective des aires de régénération de la région de l’Abitibi. Rapport remis au Ministère dans le cadre d’une subvention Volet 1.

  31. Daniel Kneeshaw, Stephen Yamasaki, Marie-Josée Fortin, Christian Messier, Alain Leduc, 2000 et 2001. Développement d'indicateurs et d'outils d'évaluation de GDF à une échelle opérationnelle: un défi d'intégration. L'Aubelle 134:10-14 et 135:19-26.

  32. Alain Leduc, Yves Bergeron, Pierre Drapeau, Brian Harvey, Sylvie Gauthier, 2000. Le régime naturel des incendies forestiers : un guide pour l’aménagement durable de la forêt boréale. L'Aubelle 135:13-22.

  33. Pierre Drapeau, Alain Leduc, Jean-François Giroux, Jean-Pierre Savard, Yves Bergeron, W.-L. Vickery, 2000. Landscape-scale disturbances and changes in bird communities of boreal mixed-wood forests. Ecological Monographs 70(3):423-444.

  34. Patrick Lefort, Sylvie Gauthier, Alain Leduc, Yves Bergeron, 2000. Étude de l’impact des facteurs physiographiques sur les feux de forêt en milieu boréal et analyse spatiale de l’homogénéité du régime de feux. Research report for QMNR. 52 p.

  35. Alain Leduc, 1999. Élaboration d’un réseau d’aires protégées afin de garantir le maintien de la diversité en écosystèmes forestiers. Rapport de recherche remis au Groupe de produits forestiers TEMBEC 45 p.

  36. Yves Bergeron, Brian Harvey, Alain Leduc, Sylvie Gauthier, 1999. Forest management strategies based on the dynamics of natural disturbances - Considerations and a proposal for a model allowing an even-management approach. For. Chron. 75(1):55-61.

  37. Yves Bergeron, Brian Harvey, Alain Leduc, Sylvie Gauthier, 1999. Forest management guidelines based on natural disturbance dynamics: stand and forest-level considerations / Stratégies d'aménagement forestier qui s'inspirent de la dynamique des perturbations naturelles: considérations à l'échelle du peuplement et de la forêt. For. Chron. 75(1):49-54.

  38. Pierre Drapeau, Alain Leduc, Raymond McNeil, 1999. Refining the use of point counts at the scale of individual points in studies of bird-habitat relationships. Journal of Avian Biology 30(4):367-382.

  39. Yves Bergeron, Alain Leduc, 1998. Relationships between change in fire frequency and mortality due to spruce budworm outbreak in the southeastern Canadian boreal forest. J. Veg. Sci. 9(4):493-500.

  40. Sylvie Gauthier, Alain Leduc, Yves Bergeron, 1996. Forest dynamics modelling under a natural fire cycle: A tool to define natural mosaic diversity in forest management. Environmental Monitoring and Assessment 39(1-3):417-434.

  41. Alain Leduc, Sylvie Gauthier, Yves Bergeron, 1995. Prévision de la composition d’une mosaïque forestière naturelle soumise a un régime des feux: proposition d’un modèle empirique pour le nord-ouest du Québec. pp 197-205 in: Domon, G. and Falardeau, J. (Ed.) Méthodes et réalisations de l’écologie du paysage pour l’aménagement du territoire. Polyscience publication, Morin Heights. 227 p.

  42. Yves Bergeron, Hubert Morin, Alain Leduc, C Joyal, 1995. Balsam fir mortality following the last spruce budworm outbreak in northwestern Quebec. Can. J. For. Res. 25(8):1375-1384. DOI:10.1139/cjfr-25-8-1375

  43. Brian Harvey, Alain Leduc, Yves Bergeron, 1995. Postharvest succession in relation to site type in the southern boreal forest. Can. J. For. Res. 25(10):1658-1672. DOI:10.1139/cjfr-25-10-1658

Post-doctoral fellow
(d) = Supervisor; (c) = Co-supervisor

◊ Louiza Moussaoui (c)

(d) = Supervisor; (c) = Co-supervisor

◊ Samuel Roy Proulx (d)

◊ Maisa de Noronha (c)

(d) = Supervisor; (c) = Co-supervisor

◊ Carla Carolina do Nascimento Moraes (c)

Graduated Ph.D.
(d) = Supervisor; (c) = Co-supervisor

◊ Pierre Nlungu Kweta Bisewolo (d) 2016

◊ Annie Belleau (d) 2012

◊ Georgina-Renee Rodriguez-Baca (c) 2017

◊ Louiza Moussaoui (c) 2017

◊ Amar Madoui (c) 2014

Graduated M.Sc.
(d) = Supervisor; (c) = Co-supervisor

◊ Raphaële Piché (d) 2017

◊ Sylvain Larouche (d) 2014

◊ Julie Fradette (d) 2014

◊ Dominic Lessard (d) 2013

◊ Sandrine Gautier-Éthier (d) 2012

◊ Jean-Philippe Michel (d) 2010

◊ Guillaume Sainte-Marie (d) 2009

◊ Simon Laquerre (d) 2007

◊ Marie-Claude Bujold (d) 2006

◊ Karelle Jayen (d) 2004

◊ Jeffrey Opuko Nyame (c) 2019

◊ Samuel Roy Proulx (c) 2019

◊ Fatma Rzem (c) 2018

◊ Maude Crispo (c) 2016

◊ Delphine Favorel (c) 2016

◊ Cécile Leroy (c) 2014

◊ Gabriel Bernard-Lacaille (c) 2014

◊ Alexander Campbell (c) 2014

◊ Albanie Leduc (c) 2013

◊ Anne Jetté (c) 2013

◊ Élisa Morin (c) 2007

◊ Virginie-Arielle Angers (c) 2004

◊ Brigitte Bigué (c) 1997

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