Undergraduates undertake semester-long “research initiation” internships on a wide variety of projects. Sometimes they work on independent projects, sometimes as a team. Others enter the biology honors stream and conduct a year-long independent research project.
Honors students
2025-2026: Abel Monard took to the next level the Phylloxera work begun ten years ago by Eric Guerra-Grenier and Anaïs Boa. Using 75 collections, DNA sequences from mitochondrial and nuclear genes, and a close examination of gall and insect morphology, Abel delimited a species complex and in so doing resurrected and established synonymies and described a new species. “Gall shape does not predict the species: Revision of the Phylloxera caryaecaulis species complex (Hemiptera: Phylloxeridae) with an integrative approach.”
2024-2025: Guillaume Saint-Jacques used the same strains of yellow mealworm studied by Leylia Petryk and evaluated their respective resistance to pathogenic infection. Like all farmed animals, these insects are subject to disease, but the animal husbandry methods used in other industries are not applied as rigorously to insects. Just like in other agricultural contexts, selecting resistant strains should be part an parcel to effective insect rearing. His research was published in the Journal of Economic Entomology: Saint-Jacques G, Normandin É, Losier C, Gunny N, Larivière D, Benoit-Biancamano MO, Favret C. 2026. Strain-dependent resistance of yellow mealworm (Coleoptera: Tenebrionidae) to bacterial infection with and without probiotic supplementation. Journal of Economic Entomology, toag064. DOI: 10.1093/jee/toag064
2023-2024: Marianne Goulet looked at the temporal beta diversity of microhymenoptera in the Laurentian forest of Quebec. Based on suction-trap samples from the Laurentian Biology Field Station (SBL), she traced how the diversity of these tiny but abundant insects tracked across the growing season. “Analysis of the temporal diversity and abundance of microhymenopteran parasitoids of the Laurentian forest of Quebec.”
2023-2024: Leylia Petryk used a mitochondrial marker (Cox1) to evaluate the genetic diversity found within and between 12 strains of the yellow mealworm, Tenebrio molitor, an insect species farmed as human and animal feed. She found much more genetic diversity than expected! “Strain differences and genetic diversity in the cytochrome C oxidase gene of Tenebrio molitor“.
2023-2024: Alexandra Landry used a genetic locus in the obligate bacterial endosymbiont of aphids, Buchnera, to try and identify the aphids fed on by lady bird beetles. Her report was entitled “What’s for dinner? DNA barcoding of the gnd gene as an effective method for identification of aphid species (Hemiptera: Aphidoidea) found in natural enemies’ diet”.
2016-2017: Anaïs Boa continued the work of Eric and others on the evolution of gall-forming, hickory-feeding Phylloxera.
2015-2016: Eric Guerra-Grenier conducted a project on the evolution of gall-forming, hickory-feeding Phylloxera.
2014: Mylène Durant worked on a four-species interaction involving ants, aphids, plants, and fungi. It has been established that plants infected with arbuscular mycorrhizal fungi have a higher concentration of certain kinds of nutrients in their sap. It has also been established that aphids, who feed on plant phloem, perform better on host plants infected with mycorrhizae (a phenomenon Jean-Michel Matt sought to confirm the fall 2014). Because aphids excrete large quantities of honeydew, and because ants often tend aphids in order to consume this honeydew, Mylène wanted to know if the ants could detect a difference in honeydew quality in aphids raised on mycorrhizae-infected versus mycorrhizae-free plants. In order to conduct this research, she had to maintain all four species in the lab. She also developed an ingenious system that counts the number of ants who chose to visit the different aphid colonies.
Student interns
Summer 2026: François Hervieux
Winter 2026: Laetitia Bailly, Alexandre Boulé-Bouchard
Fall 2025: Héloïse Livernoche, Florence Piché-Lebel
Summer 2025: Christopher Gaffary, Abel Monard
Winter 2025: Christopher Gaffary, Daphné Larivière, Clara Munier, Rime Ouhadouch
Fall 2024: Naomi Gunny, Léonard Huet-Doyle, Alexandra Landry, Abel Monard, Rime Ouhadouch
Winter 2024: Merlin Guerrero, Rose Poissant, Guillaume Saint-Jacques
Fall 2023: Véronique Brown, Anouk Desjardins, Guillaume Saint-Jacques
Winter 2023: Sebastien Cristescu, Catherine Hébert, Amelia Krolikowski, Oscar-Louis Kuhn, Alexandra Landry, Flavie Leblanc, Leylia Petryk, Elsa Simard
Fall 2022: Félix-Antoine Aird, Éloïse Archambault, Catherine Hébert, Lucie Monmarteau
Summer 2022: David Cousineau, Claudia Desaulniers, Catherine Hébert, Leylia Petryk, Hugo Sauer
Winter 2022: Christian Baril, Louis-Philippe Beauchamp, Anton Bystrov, Charles Gagnon, Gaspard Tanguay-Labrosse, Achille Villeneuve
Fall 2021: Elora Edon, Noémie Lacombe, Gaspard Tanguay-Labrosse
Summer 2021: Matteo Babinski, Catherine Hébert, Amélie Quesnel, Gaspard Tanguay-Labrosse
Fall 2020: Juliane Vigneault
Hiver 2021: Nicolas Perrault
Winter 2020: Philippe Hénault
Summer 2019: Corinne Soucy
Winter 2019: Alexanne Lupien, Laurie-Anne Roy
Summer 2018: Jules Dumotier
Winter 2018: Virginie Juteau, Dominique Marullo-Masson, Charlène Morand, Catherine Rocque
Summer 2017: Titouan Eon-Le Guern
Winter 2017: Alexandra Kack, Samuel Charberet
Fall 2016: Mira Miron, Alexis Trépanier,
Summer 2016: Louis Babchia, Laurence Lefebvre
Winter 2016: Khalil Abas, Anaïs Boa, Jonathan Charron, Elisabeth Hardy-Lachance, Mira Miron, Alexis Trépanier, Gabriel Váradi
Fall 2015: Alexandra Angers built our virtual collection of cyberspecimens of new species of Mindarus.
Summer 2015: Pedro Castro-Grillo returned for a second internship working on the Phylloxera project he began the previous semester. Julie-Christine Martin developed the protocols for creating aphid cyberspecimens for publication on the Internet.
Winter 2015: Laurent Montagano returned for a second internship to continue his work on aphid campaniform sensilla. These minute structures are found on several appendages (antenna, leg, wing) and are responsible for proprioception, that is, providing sensory input to the aphid as to the forces being placed on its cuticle (eg. the bending of the wing while in flight). Laurent serially sectioned the aphid appendages to examine the internal structure of the sensilla. His work was published! Pedro Castro-Grillo, Jenna Glasz, and Lucie Lecoq continued the Phylloxera work began by other students the previous semester. They found that, in general, each type of gall housed a different species of aphid, and that the same aphid species could be found on several species of hickory. There are exceptions, however, and there is at least on pair of aphid species that form similar galls but on different host species.
Fall 2014: Catherine Sirois-Delisle, having conducted work in the collection the summer prior, stayed in the lab for a second internship. She, Katherine Matteau, and Victoria Joannou began a project on the systematics of Phylloxera species feeding on hickory trees. These close relatives of aphids cause the growth of a variety of galls on their hosts, be it on the leaves, petioles, or twigs. The students focused on using DNA barcodes (Wikipedia) to disambiguate the relationships between the putative aphid species, their hosts, and the types of galls they inhabit. Jean-Michel Matte conducted a research experiment to compare the rate of growth of aphid colonies raised on plants infected with or free of arbuscular mycorrhizae.
Summer 2014: Kim Aubut-Demers and Catherine Sirois-Delisle worked on the databasing of the dragonflies and damselflies (Odonata – Wikipedia) in the Ouellet-Robert Entomological Collection. The primary databasing having been done during the initial development of Canadensys, Kim and Catherine researched the geoposition coordinates of the specimen collection localities and conducted analyses of the distribution of Odonata at the University of Montreal’s Biological Research Station. Stéphanie Mignault-Goulet worked on specimen databasing workflows with the bumble bees (Bombus – Wikipedia) in the collection. Laurent Montagano began a project examining the campaniform sensilla on aphid legs, antennae, and wings. See winter 2015 for the continuation of his project.
Winter 2014: Matthieu Tzaud worked on the anatomy and function of the springtail (Collembola – Wikipedia) collophore. The collophore is a ventral and somewhat enigmatic abdominal appendage found in all Collembola. Matthieu helped prepare a publication!
Fall 2013: Salomé Gotreau recurated the jewel beetles (Buprestidae – Wikipedia) in the Ouellet-Robert Entomological Collection. She photographed and began the process of databasing a large number of specimens.
Winter 2013: Liam Boivin, Delphine Ducros, and Marie-Ève Garon-Labrecque worked on the morphological discrimination of undescribed species of the genus Mindarus. Molecular and biological data had already established the existence of different species. These three students each focused on separate aphid tagma, that is the head, the thorax, and the abdomen, to find morphological criteria that would corroborate the other data.