Pierre-Luc Chagnon
Adjunct Professor,Université de Montréal
Institut de recherche en biologie végétale
E-mail: pierre-luc.chagnon@agr.gc.ca
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EducationResearchMy research gravitates around community ecology, plant ecology, mycorrhizal symbioses and soil fungi. I am interested in untangling the drivers of symbiotic, bipartite community assembly, with a focus on network-based mathematical tools to quantify their structural patterns. Using mycorrhizal symbioses as a model system, and network-based approaches as a tool, my aims are to (1) advance our understanding of this widespread and ecologically significant symbiosis and (2) provide empirical tests for theory related to assembly and dynamics of ecological networks. I thus see my research as one displaying a happy mix of question-based and system-based approaches (i.e. system-based research anchored by a strong theoretical background).QCBS students Hiba MerzoukiPostdoctoral fellow  Noah BoodhooPh.D.  Werbson Lima BarrosoPh.D. Béatrice DubéM.Sc. Previous students (since 2009) Hiba BenmohamedPh.D.  Béatrice Gervais-BergeronPh.D.  Béatrice Gervais-BergeronPh.D.  ROLANDO TREJO PÉREZPh.D. Rana BaliM.Sc.  Elisa Bussing HudonM.Sc.  Maxime GuglielmettiM.Sc.  Antoine HénaultM.Sc.  Émilie Seyer-LamontagneM.Sc. Rana BaliM.A. Involvement within the QCBSRelevant QCBS research themesExamples of species studiedPeltigera Publications51- Soil fungal communities are primarily influenced by vegetation rather than fertilizers and fungicides in a lowbush blueberry production system Journal Article Telmosse G, Chagnon P, Lafond J, Paré M C, 2026 Canadian Journal of Soil Science (Date Added: 2026-03-10) 50- Community assembly of mosses, lichens, and succulents across a green roof chronosequence in Malmö Sweden Journal Article Heim A, Chagnon P, Haughian S, Richardson D, Buffam I, 2026 Urban Forestry and Urban Greening (Date Added: 2026-03-10) 49- Trait-environment relationships over short taxonomic and abiotic gradients on Sedum/moss roofs Journal Article Heim A, Kunle M, Chagnon P, Lehvävirta S, Buffam I, 2025 Urban Forestry and Urban Greening (Date Added: 2025-06-26) 48- Enhancing consistency in arbuscular mycorrhizal trait-based research to improve predictions of function Journal Article Antunes P M, Stürmer S L, Bever J D, Chagnon P, Chaudhary V B, Deveautour C, Fahey C, Kokkoris V, Lekberg Y, Powell J R, Aguilar-Trigueros C A, Zhang H, 2025 Mycorrhiza (Date Added: 2025-03-07) 47- Bioaugmentation in constructed wetlands for performance enhancement Book Book Chapter Tondera K, Chagnon P, Brisson J, 2024 Emerging Developments in Constructed Wetlands (Date Added: 2025-01-01) 46- Undesirable woody establishment is driven by herbaceous cover phylogenetics and abiotic conditions Journal Article Trejo-Pérez R, Chagnon P, Gervais-Bergeron B, Boivin P, Brisson J, 2024 Plant Ecology (Date Added: 2024-11-11) 45- Limited impact of soil inocula from arbuscular and ectomycorrhizal-dominated sites on root morphology and growth of four tree seedling species from a temperate deciduous forest Journal Article Parasquive V, Brisson J, Laliberté E, Chagnon P L, 2024 Plant and Soil (Date Added: 2024-11-07) 44- Willow traits outperform taxonomy in predicting phytoremediation services Journal Article Gervais-Bergeron B, Chagnon P, Labrecque M, 2024 Science of the Total Environment (Date Added: 2024-10-19) 43- Partial least squares regression to explore and predict environmental data Book Book Chapter Matteau J, Chagnon P, Célicourt P, 2024 Intelligence Systems for Earth, Environmental and Planetary Sciences: Methods, Models and Applications (Date Added: 2024-10-06) 42- Arbuscular and ectomycorrhizal tree seedling growth is inhibited by competition from neighboring roots and associated fungal hyphae Journal Article Parasquive V, Brisson J, Laliberté E, Chagnon P L, 2024 Plant and Soil (Date Added: 2024-06-05) 41- Resistance against tree encroachment is driven by richness and identity of herbaceous resident speces Journal Article Trejo‐Pérez R, Chagnon P, Boivin P, Brisson J, 2024 Applied Vegetation Science (Date Added: 2024-05-26) 40- Prairie restoration promotes the abundance and diversity of mutualistic arbuscular mycorrhizal fungi Journal Article MacColl K A, Tosi M, Chagnon P, MacDougall A S, Dunfield K E, Maherali H, 2024 Ecological Applications (Date Added: 2024-05-21) 39- Interplay of biotic and abiotic factors shapes tree seedling growth and root-associated microbial communities Journal Article Chamard J, Faticov M, Blanchet F G, Chagnon P, Laforest-Lapointe I, 2024 Communications Biology (Date Added: 2024-03-28) 38- Contrasted root trait responses between saplings of an arbuscular and an ectomycorrhizal tree species in open field compared to forest conditions Journal Article Parasquive V, Brisson J, Guilbeault‐Mayers X, Laliberté E, Chagnon P L, 2023 Journal of Ecology (Date Added: 2023-06-18) 37- Trace element hyperaccumulator plant traits: a call for trait data collection Journal Article Gervais-Bergeron B, Paul A L D, Chagnon P, Baker A J M, van der Ent A, Faucon M, Quintela-Sabarís C, Labrecque M, 2023 Plant and Soil (Date Added: 2023-05-01) 36- Structure and impact of root-associated fungi in treatment wetland mesocosms Journal Article Tondera K, Chazarenc F, Brisson J, Chagnon P, 2023 Science of the Total Environment (Date Added: 2023-01-03) 35- Advancing mycorrhizal trait-based ecology using both pure cultures and community-level traits Journal Article Chagnon P, 2022 Molecular Ecology (Date Added: 2022-12-16) 34- Stressful, isolated, yet diverse: Green roofs have rich microbiomes that are not dominated by oligotrophic taxa Journal Article Hénault A, Heim A, Brisson J, Dagenais D, De Bellis T, Chagnon P, 2022 Environmental Microbiology Reports (Date Added: 2022-09-15) 33- Phylogenetic structure of specialization: A new approach that integrates partner availability and phylogenetic diversity to quantify biotic specialization in ecological networks Journal Article Pardo‐De la Hoz C J, Medeiros I D, Gibert J P, Chagnon P, Magain N, Miadlikowska J, Lutzoni F, 2022 Ecology and Evolution (Date Added: 2022-04-13) 32- Trait-based and phylogenetic filtering of arbuscular mycorrhizal fungal communities under long-term agricultural practices Journal Article Chagnon P, Bradley R L, Lafond J, Paré M C, Penaud V, 2021 Plant and Soil (Date Added: 2021-11-26) 31- Willow aboveground and belowground traits can predict phytoremediation services Journal Article Gervais-Bergeron B, Chagnon P, Labrecque M, 2021 Plants (Date Added: 2021-09-12) 30- Fresh compost tea application does not change rhizosphere soil bacterial community structure, and has no effects on soybean growth or yield Journal Article Bali R, Pineault J, Chagnon P, Hijri M, 2021 Plants (Date Added: 2021-08-19) 29- Bioaugmentation of treatment wetlands – A review Journal Article Tondera K, Chazarenc F, Chagnon P, Brisson J, 2021 Science of the Total Environment (Date Added: 2021-03-06) 28- Host identity influences nuclear dynamics in arbuscular mycorrhizal fungi Journal Article Kokkoris V, Chagnon P, Yildirir G, Clarke K, Goh D, MacLean A M, Dettman J, Stefani F, Corradi N, 2021 Current Biology (Date Added: 2021-03-06) 27- Boreal forest multifunctionality is promoted by low soil organic matter content and high regional bacterial biodiversity in Northeastern Canada Journal Article Giguère-Tremblay R, Laperriere G, de Grandpré A, Morneault A, Bisson D, Chagnon P, Germain H, Maire V, 2020 Forests (Date Added: 2020-03-22) 26- Mycorrhizal network assembly in a community context: The presence of neighbours matters Journal Article Chagnon P, Bradley R L, Klironomos J N, 2019 Journal of Ecology (Date Added: 2019-07-21) 25- Species diversification and phylogenetically constrained symbiont switching generated high modularity in the lichen genus Peltigera Journal Article Chagnon P, Magain N, Miadlikowska J, Lutzoni F, 2019 Journal of Ecology (Date Added: 2019-07-10) 24- Apatite stimulates the deposition of glomalin-related soil protein in a lowbush blueberry commercial field Journal Article Paré M, Chagnon P, Plourde J, Legendre-Guillemin V, 2019 Agriculture (Switzerland) (Date Added: 2019-04-23) 23- Strong specificity and network modularity at a very fine phylogenetic scale in the lichen genus Peltigera Journal Article Chagnon P L, Magain N, Miadlikowska J, Lutzoni F, 2018 Oecologia (Date Added: 2018-05-25) 22- The role of mycorrhizal symbioses in phytotechnology Journal Article Chagnon P, Brisson J, 2017 Botany (Date Added: 2017-11-19) 21- Soil biotic quality lacks spatial structure and is positively associated with fertility in a northern grassland Journal Article Chagnon P, Brown C, Stotz G C, Cahill J F, 2017 Journal of Ecology (Date Added: 2017-09-28) 20- Plant communities and soil properties mediate agricultural land use impacts on arbuscular mycorrhizal fungi in the Mixed Prairie ecoregion of the North American Great Plains Journal Article Bainard L, Chagnon P, Cade-Menun B, Lamb E, LaForge K, Schellenberg M, Hamel C, 2017 Agriculture, Ecosystems and Environment (Date Added: 2017-09-23) 19- Erratum to: Interaction type influences ecological network structure more than local abiotic conditions: evidence from endophytic and endolichenic fungi at a continental scale (Oecologia, (2016), 180, 181-191, DOI 10.1007/s00442-015-3457-5) Journal Article Chagnon, PL, U’Ren, JM, Miadlikowska, J, Lutzoni, F, Arnold, AE 2016 Oecologia (Date Added: 2017-03-29) 18- Mycorrhizas across scales: A journey between genomics, global patterns of biodiversity and biogeochemistry Journal Article Chagnon, PL, Rineau, F, Kaiser, C 2016 New Phytologist (Date Added: 2017-03-29) 17- Interaction type influences ecological network structure more than local abiotic conditions: evidence from endophytic and endolichenic fungi at a continental scale Journal Article Chagnon, PL, U’Ren, JM, Miadlikowska, J, Lutzoni, F, Elizabeth Arnold, A 2016 Oecologia (Date Added: 2017-03-29) 16- Seeing networks for what they are in mycorrhizal ecology Journal Article Chagnon, PL 2016 Fungal Ecology (Date Added: 2017-03-29) 15- Glomeromycetes from the magdalen islands archipelago: Analyzing diversity and meta-community structure in a sand-dune ecosystem Journal Article Dalpé, Y, Séguin, S, Chagnon, PL 2016 Botany (Date Added: 2017-02-13) 14- Increased seedling establishment via enemy release at the upper elevational range limit of sugar maple Journal Article Urli, M, Brown, CD, Perez, RN, Chagnon, PL, Vellend, M 2016 Ecology (Date Added: 2016-11-23) 13- Using molecular biology to study mycorrhizal fungal community ecology: Limits and perspectives Journal Article Chagnon, PL, Bainard, LD 2015 Plant Signaling & Behavior (Date Added: 2017-07-31) 12- Trait-based partner selection drives mycorrhizal network assembly Journal Article Chagnon, PL, Bradley, RL, Klironomos, JN 2015 Oikos (Date Added: 2017-03-29) 11- Characterizing topology of ecological networks along gradients: The limits of metrics' standardization Journal Article Chagnon, PL 2015 Ecological Complexity (Date Added: 2017-03-29) 10- The relative importance of host vigor and hormonal response to pathogens in controlling the development of arbuscular mycorrhizal fungi Journal Article Chagnon, PL, Bradley, RL 2015 Soil Biology and Biochemistry (Date Added: 2017-03-29) 9- Navigating the labyrinth: A guide to sequence-based, community ecology of arbuscular mycorrhizal fungi Journal Article Hart, MM, Aleklett, K, Chagnon, PL, Egan, C, Ghignone, S, Helgason, T, Lekberg, Y, Öpik, M, Pickles, BJ, Waller, L 2015 New Phytologist (Date Added: 2017-03-29) 8- Ecological and evolutionary implications of hyphal anastomosis in arbuscular mycorrhizal fungi Journal Article Chagnon, PL 2014 FEMS Microbiology Ecology (Date Added: 2017-03-29) 7- Is root DNA a reliable proxy to assess arbuscular mycorrhizal community structure? Journal Article Chagnon, PL, Bainard, LD 2014 Canadian Journal of Microbiology (Date Added: 2017-03-29) 6- Plant-fungal symbioses as ecological networks: The need to characterize more than just interaction patterns Journal Article Chagnon, PL, Bradley, RL, Klironomos, JN 2014 Fungal Ecology (Date Added: 2017-03-29) 5- Evidence that soil nutrient stoichiometry controls the competitive abilities of arbuscular mycorrhizal vs. root-borne non-mycorrhizal fungi Journal Article Chagnon, PL, Bradley, RL 2013 Fungal Ecology (Date Added: 2017-03-29) 4- A trait-based framework to understand life history of mycorrhizal fungi Journal Article Chagnon, PL, Bradley, RL, Maherali, H, Klironomos, JN 2013 Trends in Plant Science (Date Added: 2017-03-29) 3- Using ecological network theory to evaluate the causes and consequences of arbuscular mycorrhizal community structure Journal Article Chagnon, PL, Bradley, RL, Klironomos, JN 2012 New Phytologist (Date Added: 2017-03-29) 2- On the use of sodium hexametaphosphate to extract spores of arbuscular mycorrhizal fungi from soil Journal Article Chagnon, PL, Bradley, RL 2011 Soil Biology and Biochemistry (Date Added: 2017-03-29) 1- Nitrous oxide production and potential denitrification in soils from riparian buffer strips: Influence of earthworms and plant litter Journal Article Bradley, RL, Whalen, J, Chagnon, PL, Lanoix, M, Alves, MC 2011 Applied Soil Ecology (Date Added: 2017-03-29) |
