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Stéphane Boudreau


Regular member

Department of Biology, Université Laval

Alexandre-Vachon Building
1045 avenue de la Médecine
Université Laval
Quebec, Canada
G1V 0A6

418.656.2131 extension 403857




Research Themes

  • Ecological processes responsible for biodiversity conservation.
  • Natural and anthropogenic disturbances.
  • Plants/herbivores relationships.
  • Regeneration ecology.

CEN Students / Postdoctoral fellows

Gaspard, Anna (Doctorate). Characterization and evolution of major plant formations in Nunavik under climate change.

Labrecque-Foy, Julie-Pascale (Master). Processes involved in the heterogeneity of the greening at the Nunavik treeline.

Lamoureux, Rosalie (Master - Codirector). Characterization of natural products from northern bryophyte Racomitrium lanuginosum .


Recent CEN theses

Beaupré, Claudia , 2021 (Master). Evolution of the structure and productivity of subarctic ecosystems in Nunavik in the 21st century.

Séguin, Jean-Christophe , 2021 (Master - Codirection). Investigation of the metabolome of plants and lichens from northern Quebec .

Belke Brea, Maria , 2020 (Doctorate - Codirection). The influence of shrub expansion on albedo and the winter radiation budget in the Canadian Low Arctic .

Chagnon, Catherine , 2020 (Master). Abundance and diversity of lichen species in Nunavik in the context of climate change.

Angers-Blondin, Sandra , 2019 (Doctorate - Codirection). Reading between the rings: Climatic and biotic controls of shrub growth and expansion in the tundra biome .


Scientific communications

Labrecque-Foy, J.-P., Angers-Blondin, S., Ropars, P., Simard, M., Boudreau, S., 2023. The Use of Basal Area Increment to Preserve the Multi-Decadal Climatic Signal in Shrub Growth Ring Chronologies: A Case Study of Betula glandulosa in a Rapidly Warming Environment. Atmosphere, 14(2): 319, 319. DOI: 10.3390/atmos14020319.

Bayle, A., Roy, A.R., Dedieu, J.-P., Boudreau, S., Choler, P., Lévesque, E., 2022. Two distinct waves of greening in northeastern Canada: summer warming does not tell the whole story. Environmental Research Letters, 17(6), 064051. DOI: 10.1088/1748-9326/ac74d6.

Camarero, J.J., Gazol, A., Sánchez‐Salguero, R., Fajardo, A.T., McIntire, E.J.B., Gutiérrez, E., Batllori, E., Boudreau, S., Carrer, M., Diez, J., Dufour-Tremblay, G., Gaire, N.P., Hofgaard, A., Jomelli, V., Kirdyanov, A., Lévesque, E., Liang, E.J., Linares, C., Mathisen, I.E., Moiseev, P.A., Sangüesa‐Barreda, G., Shrestha, K.B., Toivonen, J.M., Tutubalina, O.V., Wilmking, M., 2021. Global fading of the temperature–growth coupling at alpine and polar treelines. Global Change Biology, 27(9): 1879-1889. DOI: 10.1111/gcb.15530.

Chagnon, C., Simard, M., Boudreau, S., 2021. Patterns and determinants of lichen abundance and diversity across a subarctic to arctic latitudinal gradient. Journal of Biogeography, 48(11): 2742–2754. DOI: 10.1111/jbi.14233.

Jean, R., Khasa, D., Boudreau, S., 2021. Effects of one dark septate endophytic fungal and two Helotiales strains on the growth of plane-leaved willow (Salix planifolia) cuttings on iron ore waste rock. Botany, 99(11): 725-733. DOI: 10.1139/cjb-2021-0043.

Belke Brea, M., Domine, F., Boudreau, S., Picard, G., Barrère, M., Arnaud, L., Paradis, M., 2020. New allometric equations for arctic shrubs and their application for calculating the albedo of surfaces with snow and protruding branches. Journal of Hydrometeorology, 21(11): 2581–2594. DOI: 10.1175/JHM-D-20-0012.1.

Buchkowski, R.W., Morris, D.W., Halliday, W.D., Dupuch, A., Morrissette-Boileau, C., Boudreau, S., 2020. Warmer temperatures promote shrub radial growth but not cover in the central Canadian Arctic. Arctic, Antarctic, and Alpine Research, 52(1): 582-595. DOI: 10.1080/15230430.2020.1824558.

Buchwal, A., Sullivan, P.F., Macias-Fauria, M., Post, E., Myers-Smith, I.H., Stroeve, J.C., Blok, D., Tape, K.D., Forbes, B.C., Ropars, P., Lévesque, E., Elberling, B., Angers-Blondin, S., Boyle, J.S., Boudreau, S., Boulanger-Lapointe, N., Gamm, C., Hallinger, M., Rachelwicz, G., Young, A., Zetterberg, P., Welker, J.M., Jørgensen, R.H., Buras, A., Naito, A.T., Ravolainen, V., Schaepman-Strub, G., 2020. Divergence of arctic shrub growth associated with sea ice decline. Proceedings of the National Academy of Sciences of the United States of America (PNAS), 117(52): 33334-33344. DOI: 10.1073/pnas.2013311117.

Jean, R., Khasa, D., Boudreau, S., 2020. Could biochar and peat moss help address reclamation challenges of using shrub species on overburden dumps from a subarctic iron mine? Ecological Restoration, 38: 207-210. DOI: 10.3368/er.38.4.207.

Jean, R., Khasa, D., Boudreau, S., 2020. The effect of planting orientation and iron ore mining substrates on the survival and growth of Salix planifolia cuttings in a greenhouse experiment. Ecological Restoration, 38(3): 153-159. DOI: 10.3368/er.38.3.153.

Opała-Owczarek, M., Owczarek, P., Łupikasza, E., Boudreau, S., Krzysztof, M., 2020. Influence of climatic conditions on growth rings of Salix uva-ursi Pursh from the southeastern shore of Hudson Bay, Subarctic Canada. Arctic, Antarctic, and Alpine Research, 52(1): 87-102. DOI: 10.1080/15230430.2020.1722397.

Owczarek, P., Opała-Owczarek, M., Boudreau, S., Lajeunesse, P., Stachnik, Ł., 2020. Re-activation of landslide in sub-Arctic areas due to extreme rainfall and discharge events (the mouth of the Great Whale River, Nunavik, Canada). Science of the Total Environment, 744, 140991. DOI: 10.1016/j.scitotenv.2020.140991.

Rees, W.G., Hofgaard, A., Boudreau, S., Cairns, D.M., Harper, K., Mamet, S., Mathisen, I.E., Swirad, Z., Tutubalina, O.V., 2020. Is subarctic forest advance able to keep pace with climate change? Global Change Biology, 26(7): 3965-3977. DOI: 10.1111/gcb.15113.

Ropars, P., Simard, M., Boudreau, S., 2020. Le rôle des herbivores vertébrés sur la dynamique des communautés végétales au Nunavik. Le Naturaliste Canadien, 144(1): 24-36. DOI: 10.7202/1068216ar.

Chagnon, C., Boudreau, S., 2019. Shrub canopy induces a decline in lichen abundance and diversity in Nunavik (Québec, Canada). Arctic, Antarctic, and Alpine Research, 51 (1): 521-532. DOI: 10.1080/15230430.2019.1688751.

Gagnon, M., Domine, F., Boudreau, S., 2019. The carbon sink due to shrub growth on Arctic tundra: a case study in a carbon-poor soil in eastern Canada. Environmental Research Communications, 1, 091001. DOI: 10.1088/2515-7620/ab3cdd.

Angers-Blondin, S., Myers-Smith, I., Boudreau, S., 2018. Plant–plant interactions could limit recruitment and range expansion of tall shrubs into alpine and arctic tundra. Polar Biology, 41(11): 2211-2219. DOI: 10.1007/s00300-018-2355-9.

Lemay, M.-A., Provencher-Nolet, L., Bernier, M., Lévesque, E., Boudreau, S., 2018. Spatially explicit modeling and prediction of shrub cover increase near Umiujaq, Nunavik. Ecological Monographs, 88(3): 385-407. DOI: 10.1002/ecm.1296.

Morrissette-Boileau, C., Boudreau, S., Tremblay, J.-P., Côté, S.D., 2018. Revisiting the role of migratory caribou in the control of shrub expansion in northern Nunavik (Québec, Canada). Polar Biology, 41(9): 1845-1853. DOI: 10.1007/s00300-018-2325-2.

Morrissette-Boileau, C., Boudreau, S., Tremblay, J.-P., Côté, S.D., 2018. Simulated caribou browsing limits the effect of nutrient addition on the growth of Betula glandulosa, an expanding shrub species in Eastern Canada. Journal of Ecology, 106(3): 1256-1265. DOI: 10.1111/1365-2745.12899.

Angers-Blondin, S., Boudreau, S., 2017. Expansion dynamics and performance of the dwarf shrub Empetrum hermaphroditum (Ericaceae) on a subarctic sand dune system, Nunavik (Canada). Arctic, Antarctic, and Alpine Research, 49(2): 201-211. DOI: 10.1657/AAAR0016-020.

Carpentier, C., Ferreira Queiroz, E., Marcourt, L., Wolfender, J.-L., Azelmat, J., Grenier, D., Boudreau, S., Voyer, N., 2017. Dibenzofurans and pseudodepsidones from the lichen Stereocaulon paschale collected in Northern Quebec. Journal of Natural Products, 80(1): 210-214. DOI: 10.1021/acs.jnatprod.6b00831.

Ropars, P., Angers-Blondin, S., Gagnon, M., Myers-Smith, I., Lévesque, E., Boudreau, S., 2017. Different parts, different stories: climate sensitivity of growth is stronger in root collars versus stems in tundra shrubs. Global Change Biology, 23(8): 3281-3291. DOI: 10.1111/gcb.13631.

Paradis, M., Lévesque, E., Boudreau, S., 2016. Greater effect of increasing shrub height on winter versus summer soil temperature. Environmental Research Letters, 11(085005): 13. DOI: 10.1088/1748-9326/11/8/085005.

Roy-Bolduc, A., Laliberté, E., Boudreau, S., Hijri, M., 2016. Strong linkage between plant and soil fungal communities along a successional coastal dune system. FEMS Microbiology Ecology, 92(10): fiw156. DOI: 10.1093/femsec/fiw156.

Villeneuve Simard, M.-P., Boudreau, S., 2016. Dynamique reproductive de la camarine noire (Empetrum nigrum L.) le long d’une chronoséquence de feu à la limite des arbres. Écoscience, 23(3-4): 57-66. DOI: 10.1080/11956860.2016.1232578.

Ropars, P., Lévesque, E., Boudreau, S., 2015. How do climate and topography influence the greening of the forest-tundra ecotone in northern Québec? A dendrochronological analysis of Betula glandulosa. Journal of Ecology, 103(3): 679-690. DOI: 10.1111/1365-2745.12394 .

Ropars, P., Lévesque, E., Boudreau, S., 2015. Shrub densification heterogeneity in subarctic regions: the relative influence of historical and topographic variables. Écoscience, 22(2-4): 83-95. DOI: 10.1080/11956860.2015.1107262.

Roy-Bolduc, A., Bell, T., Boudreau, S., Hijri, M., 2015. Comprehensive sampling of an isolated dune system demonstrates clear patterns in soil fungal communities across a successional gradient. Environmental Microbiology Reports, 7(6): 839-848. DOI: 10.1111/1758-2229.12312.

Boulanger-Lapointe, N., Lévesque, E., Boudreau, S., Henry, G.H.R., Schmidt, N.M., 2014. Population structure and dynamics of Arctic willow (Salix arctica) in the High Arctic. Journal of Biogeography, 41(10): 1967–1978. DOI: 10.1111/jbi.12350.

Dumais, C., Ropars, P., Denis, M.-P., Dufour-Tremblay, G., Boudreau, S., 2014. Are low altitude alpine tundra ecosystems under threat? A case study from the Parc National de la Gaspésie, Québec. Environmental Research Letters, 9(9): 094001. DOI: 10.1088/1748-9326/9/9/094001.

Paradis, M., Mercier, C., Boudreau, S., 2014. Response of Betula glandulosa seedlings to simulated increases in nutrient availability, temperature and precipitation in a lichen woodland at the forest-tundra ecotone. Plant Ecology, 215(3): 305-314. DOI: 10.1007/s11258-014-0299-x.

Plante, S., Champagne, É., Ropars, P., Boudreau, S., Lévesque, E., Tremblay, B., Tremblay, J.-P., 2014. Shrub cover in northern Nunavik: can herbivores limit shrub expansion? Polar Biology, 37(5): 611-619. DOI: 10.1007/s00300-014-1461-6.

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