Catherine Girard

• Centre d'études nordiques

Financements des 2 dernières années

• Alex Abhaya Wickramasinghe Gunawardene, Doctorat en microbiologie
• Léa Dorion-Joannette, Maîtrise en microbiologie - avec mémoire

Travaux de recherche des 5 dernières années

Diversity and connectivity of microbial eukaryotes in High Arctic terrestrial and aquatic ecosystems FEMS Microbiology Ecology, 2026. P M Hooper, W F Vincent, C Girard, E J Feil, D Bass, A D Jungblut. DOI 10.1093/femsec/fiag096

Freshwater biodiversity in a rapidly changing Arctic: An expert horizon scan of key research questions Ambio, 2026. Joseph M. Culp, Michael Power, Kirsten S. Christoffersen, Willem Goedkoop, Kimmo K. Kahilainen, Milla Rautio, Fernando Chaguaceda, Marie-Pier Hébert, Sanne M. Moedt, Dermot Antoniades, Simon Belle, Daniel Bolnick, Frederic Bouchard, John E. Brittain, Pär Byström, Louise Chavarie, Raoul-Marie Couture, Alison M. Derry, Antti P. Eloranta, André Frainer, Catherine Girard, Guillaume Grosbois, Dag O. Hessen, Ian Hogg, Anne D. Jungblut, Hanna-Kaisa Lakka, Jen Lam, Danny C. P. Lau, Camille A. Leblanc, Jennifer Lento, Sally MacIntyre, Phil Marsh, Mackenzie A. C. Martyniuk, Alexander Milner, Jordan Musetta-Lambert, Tero Mustonen, Danielle Nowosad, Jasmine E. Saros, Ann Kristin Schartau, John P. Smol, Janne Soininen, Martin-A. Svenning, Ken D. Tape, Frederick J. Wrona. DOI 10.1007/s13280-025-02331-5

Giant viruses of the polar regions: diversity, endemism, adaptation and ecological structuring FEMS Microbiology Ecology, 2026. Thomas M Pitot, Catherine Girard. DOI 10.1093/femsec/fiag061

A novel psychrophilic yeast species, Mrakia wardhuntensis sp. nov., isolated from Ward Hunt Lake in the extreme High Arctic International Journal of Systematic and Evolutionary Microbiology, 2026. Masaharu Tsuji, Catherine Girard, Warwick F. Vincent, Masaki Uchida. DOI 10.1099/ijsem.0.007134

Season and city shape urban bioaerosol composition beyond vegetation and socioeconomic gradients Science of The Total Environment, 2026. Sarah Poirier, Jonathan Rondeau-Leclaire, Maria Faticov, Alexis Roy, Gaële Lajeunesse, Jean-François Lucier, Sarah Tardif, Steven W. Kembel, Carly Ziter, Catherine Laprise, Alain Paquette, Catherine Girard, Isabelle Laforest-Lapointe. DOI 10.1016/j.scitotenv.2026.181623

Phosphorothioate DNA modification by BREX type 4 systems in the human gut microbiome Nature Communications, 2026. Yifeng Yuan, Michael S. DeMott, Shane R. Byrne, Katia Flores, Mathilde Poyet, Mathieu Groussin, Brittany Berdy, John Rusine Bahunde, Catherine Girard, Jenni Lehtimäki, Audax Z. P. Mabulla, Ivan Emil Mwikarago, Yvonne Ayerki Nartey, Le Thanh Tu Nguyen, Charles A. Onyekwere, Lewis R. Roberts, B. Jesse Shapiro, Tommi Vatanen, Laurie E. Comstock, Eric J. Alm, Peter C. Dedon. DOI 10.1038/s41467-026-68412-5

Bacterial divergence among the interconnected habitats of a High Arctic Lake FEMS Microbiology Ecology, 2025. Pénélope Blackburn-Desbiens, Maxime Larose, Raoul-Marie Couture, Warwick F Vincent, Alexander I Culley, Catherine Girard. DOI 10.1093/femsec/fiaf115

Impact of oral immunotherapy on diversity of gut microbiota in food‐allergic children Pediatric Allergy and Immunology, 2025. Thanina Bouabid, Bénédicte L. Tremblay, Marie‐Ève Lavoie, Anne‐Marie Boucher‐Lafleur, Frédérique Gagnon‐Brassard, Philippe Bégin, Sarah Lavoie, Cloé Rochefort‐Beaudoin, Claudia Nuncio‐Naud, Guy Parizeault, Charles Morin, Catherine Girard, Anne‐Marie Madore, Catherine Laprise. DOI 10.1111/pai.70156

Viral niche-partitioning: Comparative genomics of Giant Viruses across environmental gradients in a High Arctic freshwater-saltwater lake 2024. Thomas M Pitot, Catherine Girard, Josephine Z Rapp, Vincent Somerville, Alexander I Culley, Warwick F Vincent, Sylvain Moineau, Simon Roux. DOI 10.1093/ismeco/ycae155

Distinct and rich assemblages of giant viruses in Arctic and Antarctic lakes 2024. thomas M pitot, Josephine Z Rapp, Frederik Schulz, Catherine Girard, Simon Roux, Alexander I Culley. DOI 10.1093/ismeco/ycae048

Motivation to participate and attrition factors in a COVID-19 biobank: A qualitative study Journal of Infection and Public Health, 2024. Laura Jalbert, Anne-Sophie Hautin, Marie Baron, Ève Dubé, Myriam Gagné, Catherine Girard, Catherine Larochelle, Annie LeBlanc, Maxime Sasseville, Simon Décary, Karine Tremblay. DOI 10.1016/j.jiph.2024.01.004

Microbial antibiotic resistance genes across an anthropogenic gradient in a Canadian High Arctic watershed Sustainable Microbiology, 2024. Juliette Provencher, Paul B L George, Mary Thaler, Warwick F Vincent, Caroline Duchaine, Alexander I Culley, Catherine Girard. DOI 10.1093/sumbio/qvae021

Arctic bacterial diversity and connectivity in the coastal margin of the Last Ice Area ISME Communications, 2023. Catherine Girard, Warwick F Vincent, Alexander I Culley. DOI 10.1038/s43705-023-00313-w

Bacterial Biomarkers of the Oropharyngeal and Oral Cavity during SARS-CoV-2 Infection Microorganisms, 2023. William Bourumeau, Karine Tremblay, Guillaume Jourdan, Catherine Girard, Catherine Laprise. DOI 10.3390/microorganisms11112703

Variability in lake bacterial growth and primary production under lake ice: Evidence from early winter to spring melt Limnology and Oceanography, 2023. E. Henriikka Kivilä, Vilmantas Prėskienis, Noémie Gaudreault, Catherine Girard, Milla Rautio. DOI 10.1002/lno.12447

The Thores Lake proglacial system: remnant stability in the rapidly changing Canadian High Arctic Arctic Science, 2023. Alexander I. Culley, Mary Thaler, William Kochtitzky, Pilipoosie Iqaluk, Josephine Z. Rapp, Milla Rautio, Michio Kumagai, Luke Copland, Warwick F. Vincent, Catherine Girard. DOI 10.1139/as-2022-0023

Slow change since the Little Ice Age at a far northern glacier with the potential for system reorganization: Thores Glacier, northern Ellesmere Island, Canada Arctic Science, 2023. Will Kochtitzky, Luke Copland, Trudy Wohlleben, Pilipoosie Iqaluk, Catherine Girard, Warwick F. Vincent, Alexander I. Culley. DOI 10.1139/as-2022-0012

A Tale of Two Seasons: Distinct Seasonal Viral Communities in a Thermokarst Lake Microorganisms, 2023. Valérie Langlois, Catherine Girard, Warwick F. Vincent, Alexander I. Culley. DOI 10.3390/microorganisms11020428

Local Habitat Filtering Shapes Microbial Community Structure in Four Closely Spaced Lakes in the High Arctic Frontiers in Microbiology, 2022. Marois, C., Girard, C., Klanten, Y., Vincent, W.F., Culley, A.I., Antoniades, D.. DOI 10.3389/fmicb.2022.779505

Formulation of nanohybrid coating based on essential oil and fluoroalkyl silane for antibacterial superhydrophobic surfaces Applied Surface Science Advances, 2022. Hidouri, S., Jafari, R., Fournier, C., Girard, C., Momen, G.. DOI 10.1016/j.apsadv.2022.100252

Communicating with Northerners on the Absence of SARS-CoV-2 in Migratory Snow Geese Ecoscience, 2021. Frederick, C., Girard, C., Wong, G., Lemire, M., Langwieder, A., Martin, M.-C., Legagneux, P.. DOI 10.1080/11956860.2021.1885803

Physical Activity Interventions in Rehabilitation Programs for Outpatients With Mild Traumatic Brain Injury Research Quarterly for Exercise and Sport, 2021. Alarie, C., Gagnon, I., Gagnon, S., Gendron, D., Girard, C., Maranda-Lévesque, X., Swaine, B.. DOI 10.1080/02701367.2021.1927946

Elevated rates of horizontal gene transfer in the industrialized human microbiome Cell, 2021. Groussin, M., Poyet, M., Sistiaga, A., Kearney, S.M., Moniz, K., Noel, M., Hooker, J., Gibbons, S.M., Segurel, L., Froment, A., Mohamed, R.S., Fezeu, A., Juimo, V.A., Lafosse, S., Tabe, F.E., Girard, C., Iqaluk, D., Nguyen, L.T.T., Shapiro, B.J., Lehtimäki, J., Ruokolainen, L., Kettunen, P.P., Vatanen, T., Sigwazi, S., Mabulla, A., Domínguez-Rodrigo, M., Nartey, Y.A., Agyei-Nkansah, A., Duah, A., Awuku, Y.A., Valles, K.A., Asibey, S.O., Afihene, M.Y., Roberts, L.R., Plymoth, A., Onyekwere, C.A., Summons, R.E., Xavier, R.J., Alm, E.J.. DOI 10.1016/j.cell.2021.02.052