- Office: JOH 104D
Dr. Patrick Bergeron is an associate professor in the Department of Biological Sciences. He earned his Bachelor’s degree in Wildlife Biology at McGill and his PhD in Evolutionary Biology and Behavioural Ecology at the Université de Sherbrooke. He was also a postdoctoral fellow in population genetics at Dartmouth College (NH) and in biostatistics and epidemiology at the CRCHUS. He now collaborates with researchers in both the Département de Biologie and the Faculté de Médecine et des Sciences de la Santé at the Université de Sherbrooke. His main research themes focus on life-history trade-offs in the wild and epidemiology on big human datasets.
Santostefano, F., Garant, D., Bergeron, P., Montiglio, P.O. and Réale, D. In press. Social selection on behavior and morphology in Eastern chipmunk. Evolution.
Bouffard, J., Garant, D. and Bergeron, P. In press. Dynamics of ground nest egg depredation by rodents in a mixed-wood forest. Canadian journal of zoology.
Lemieux, V., Garant, D., Réale, D. and Bergeron,P. In press. Spatio-temporal variation in oxidative stress regulation in a small mammal. PeerJ 7:e7801
Engelhardt, S.C., Bergeron, P., Dillon, L., Gagnon, A. and Pelletier, F. 2019. Grandmother effects in a pre-industrial population: assessing potential inclusive fitness improvement. Current Biology 29:651-656.
Langille, E., Lemieux, V., Garant, D. and Bergeron, P. 2018 Development of small blood volume assays for the measurement of oxidative stress markers in mammals. PLoS One 13(12): e0209802.
Pelletier, F., Pigeon, G., Bergeron, P., Mayer. F.M., Boisvert, M., Réale, D. and Milot, E. 2017. Eco-evolutionary dynamics in a contemporary human population. Nature Communication 8: 15947
Duryea, M.C., Bergeron, P., Clare-Salzler, Z. and Calsbeek, R. 2016. Field estimate of parentage reveal sexually antagonistic selection on body size in a natural population of Anolis lizards. Ecology and Evolution 6: 7024-7031.
Vanasse, A., Cohen, A.A., Courteau, J., Bergeron, P., Dault, R., Gosselin, P., Blais, C., Bélanger, D., Rochette, L. and Chebana, F. 2016. Association between floods and acute cardiovascular diseases: a population-based cohort study using a geographic information system approach. International journal of Environmental Research and Public Health 13:1-12.
Li, Q., Wang, S., Milot, E., Bergeron, P., Ferruci, L., Fried., F. and Cohen, A.A. 2015. Homeostatic dysregulation proceeds in parallel in multiple physiological systems. Aging Cell 14: 11-3-1112.
Calsbeek, R.C., Duryea, M.C., Goedert, D. Bergeron, P. and Cox, R.M. 2015. Intralocus sexual conflict, adaptive sex allocation, and the heritability of fitness. Journal of Evolutionary Biology 28: 1975-1985.
Vanasse, A., Courteau, J., Orzanco, M.G., Bergeron, P., Cohen, A.A. and Niyonsenga, T. 2015. Neighbourhood immigration, health care utilization and outcomes in patients with diabetes living in the Montreal metropolitan area: a population health perspective. BMC Health Services Research 15: 146.
Bergeron, P. Courteau, J. and Vanasse, A. 2015. Proximity and emergency department utilization: A multilevel analysis using administrative data from patients with cardiovascular risk factors. Canadian Family physician 61: e391-e397.
Cohen, A.A., Poirier, R., Dusseault-Bélanger, F., Leroux, M., Milot, E., Li, Q., Fülöp, T., Bergeron, P., Metter, J., Fried, L., and Ferrucci, L. 2015. Detection of a novel, integrative aging process suggests complex physiological integration. PLoS ONE 10: 1-26.
Bergeron, P., Milot, E., Mayer, F.M., Boisvert, M., Réale, D. and Pelletier, F. 2014. Solar irradiance, survival and longevity in a pre-industrial population. Human Ecology 42: 645-650.
Montiglio, P.-O., Garant, D., Bergeron, P., Dubuc-Messier, G. and Réale, D. 2014. Pulsed resources and the coupling between life-history strategies and exploration patterns in eastern chipmunks (Tamia striatus). Journal of Animal Ecology 83: 720-728.
Bergeron, P., Martin, A.M., Garant, D. and Pelletier, F. 2013. Comment on: “Bateman in nature: predation on offspring reduces the potential for sexual selection”. Science 340: 549
Bergeron, P., Montiglio, P.-O., Réale, D., Humphries, M.M., Gimenez, O. and Garant, D. 2013. Disruptive viability selection on adult exploratory behavior in eastern chipmunks. Journal of Evolutionary Biology 26: 766-774.
Careau, V., Bergeron, P., Garant, D., Réale, D., Speakman, J.R. and Humphries, M.M. 2013. The energetic cost of growth in free-ranging chipmunks. Oecologia 171: 11-23.
Dubuc Messier, G., Bergeron, P., Garant, D. and Réale, D. 2012. Contrasted environmental conditions produce variable spatial genetic structures and dispersal patterns in a solitary rodent. Molecular Ecology 21: 5363-5373.
Bergeron, P., Montiglio, P.-O, Réale, D., Humphries M.M. and Garant D. 2012. Bateman gradients in a promiscuous mating system. Behavioral Ecology and Sociobiology 66: 1125-1130.
Bergeron, P., Réale, D., Humphries, M.M. and Garant, D. 2011. Anticipation and tracking of pulsed resources drive population dynamics in eastern chipmunks. Ecology 92: 2027-2034.
Bergeron, P., Careau, V., Humphries, M.M., Réale, D., Speakman, J.R. and Garant, D. 2011 The energetic and oxidative costs or reproduction in a free-ranging rodent. Functional Ecology 25: 1063-1071.
Bergeron, P., Réale, D., Humphries, M.M. and Garant, D. 2011. Evidence of multiple paternity and selection for inbreeding avoidance in wild eastern chipmunks. Journal of Evolutionary Biology 24: 1685-1694.
Bergeron, P., Baeta, R., Pelletier, F., Réale, D. and Garant, D. 2011. Individual quality: tautology or biological reality? Journal of Animal Ecology 80: 361-364.
Réale, D., Garant, D., Humphries, M.M., Bergeron, P., Careau, V. and Montiglio, P.O. 2010. Personality and the emergence of the pace-of-life syndrome concept at the population level. Philosophical Transactions of the Royal Society of London B 365:4051-4063.
Bergeron, P., Grignolio, S., Apollonio, M., Shipley, B. and Festa-Bianchet, M. 2010. Secondary sexual characters signal fighting ability and determine social rank in Alpine ibex (Capra ibex). Behavioral Ecology and Sociobiology 64:1299-1307.
Bonenfant C., Pelletier, F., Garel, M. and Bergeron, P. 2009. Age-dependent horn growth and survival in wild sheep. Journal of Animal Ecology 78: 161-171.
Bergeron, P., Festa-Bianchet, M., von Hardenberg A. and Bassano B. 2008. Heterogeneity in male horn growth and longevity in a highly sexually dimorphic ungulate. Oikos 117: 77-82.
Bergeron, P. 2007. Parallel lasers for remote measurements of morphological traits. Journal of Wildlife Management 71: 289–292.
My teaching interests are focused on cell biology and molecular biology related to human health and diseases. Firstly educated in France for undergraduate and MSc degrees, I then earned my PhD in cell biology at Sherbrooke’s University, with a specialization in gland development in early human life. Since then, I continued with a Post-doctoral fellowship in immunology at Laval University. I’m now part of Dr Roux’s laboratory in Sherbrooke’s hospital, where I’m working on skeletal diseases. My studies are particularly concentrated on discovering how bone-notching cells (osteoclasts) become out of control in several pathologies. My best motivation is to help students to realize their dreams…
Roux S and Chamoux E
Chapter VI : Osteoclast apoptosis
In: Cell Apoptotic Signalling Pathways. Edited by C.O. Pickens, Nova Publishers (Hauppauge, NY) 2007
Gallo-Payet N, Gendron L, Chamoux E and Payet MD
AT2 Receptor of Angiotensin II and Cellular Differentiation
In: Handbook of Experimental Pharmacology – Angiotensin Part 3. Edited by T. Unger, Springer Verlag (Berlin) 2002
Chamoux E, Houde N, L’Eriger K and Roux S.
Osteoprotegerin decreases human osteoclast apoptosis by inhibiting trail pathway. J Cell Physiol, In press
Chetoui N, Gendron S, Chamoux E, Aoudjit F.
Collagen type I-mediated activation of ERK/MAP Kinase is dependent on Ras, Raf-1 and protein phosphatase 2A in Jurkat T cells. Mol Immunol. 2006 Apr;43(10):1687-93.
Chamoux E, Otis M, Gallo-Payet N.
A connection between extracellular matrix and hormonal signals during the development of the human fetal adrenal gland.
Braz J Med Biol Res. 2005 Oct;38(10):1495-503. Epub 2005 Sep 6. Review. Erratum in: Braz J Med Biol Res. 2005 Dec;38(12):1889.
Chamoux E, Narcy A, Lehoux JG, Gallo-Payet N.
Fibronectin, laminin, and collagen IV interact with ACTH and angiotensin II to dictate specific cell behavior and secretion in human fetal adrenal cells in culture. Endocr Res. 2002 Nov;28(4):637-40.
Chamoux E, Narcy A, Lehoux JG, Gallo-Payet N.
Fibronectin, laminin, and collagen IV as modulators of cell behavior during adrenal gland development in the human fetus. J Clin Endocrinol Metab. 2002 Apr;87(4):1819-28.
Chamoux E, Bolduc L, Lehoux JG, Gallo-Payet N.
Identification of extracellular matrix components and their integrin receptors in the human fetal adrenal gland. J Clin Endocrinol Metab. 2001 May;86(5):2090-8.
Chamoux E, LeHoux JG, Gallo-Payet N.
The AT2 receptor of angiotensin II and apoptosis in human fetal adrenal gland. Endocr Res. 2000 Nov;26(4):955-7.
Breault L, Chamoux E, Lehoux JG, Gallo-Payet N.
Localization of G protein alpha-subunits in the human fetal adrenal gland. Endocrinology. 2000 Dec;141(12):4334-41.
Chamoux E, Breault L, Lehoux JG, Gallo-Payet N.
Involvement of the angiotensin II type 2 receptor in apoptosis during human fetal adrenal gland development. J Clin Endocrinol Metab. 1999 Dec;84(12):4722-30.
Breault L, Chamoux E, Lehoux JG, Gallo-Payet N.
The role of angiotensin II in human adrenal gland development. Endocr Res. 1998 Aug-Nov;24(3-4):953-4..
Chamoux E, Breault L, LeHoux JG, Gallo-Payet N.
Comparative effects of ACTH, PACAP, and VIP on fetal human adrenal cells. Endocr Res. 1998 Aug-Nov;24(3-4):943-6.
Chamoux E, Coxam V, Lebecque P, Davicco MJ, Miller SC, Barlet JP.
Influence of sex steroids on development of cultured fetal rat metatarsal bones. Growth Dev Aging. 1997 Summer;61(2):79-91.
Dr. Hull is a Full Professor in the Department of Biological Sciences. She teaches courses in Animal/Human Physiology, Human Anatomy, Exercise Physiology, and the History of Biology. She earned her Bachelor’s degree in Biology and her PhD in Endocrinology at University of Alberta, and has also undertaken research projects at universities in Delaware, New Zealand, and the United Kingdom. Her research interests focus on the involvement of hormones in growth and reproduction. She has recently co-authored an Anatomy and Physiology textbook entitled “Human Form, Human Function” and is also involved in the preparation of pedagogical material, lab manuals and study guides.
Growth hormone stimulates growth by binding receptors, resulting in the formation of a complex that induces a response. It remains unclear if receptors can form complexes without growth hormone. Dr. Hull is investigating that question by examining complex formation by normal receptors and by mutated receptors that cannot bind growth hormone.
The objectives of the project are:
This analysis is the first to explicitly examine growth hormone receptor dimerization using FRET.
When he is not engaged as contract faculty in the Department of Biological Sciences at Bishop’s, Bill Parsons works as a staff research professional across town at the Université de Sherbrooke. Subsequent to receiving a doctorate in ecosystem ecology from the University of Wyoming, he was a postdoctoral fellow at Rutgers University, the Smithsonian Institution and the University of Wisconsin Madison, and attaché de recherche at Université Laval. In addition to conducting field studies in Canada and the United States, Dr. Parsons also has tropical research experience in Costa Rica.
Dr. Michael Richardson is Associate Professor in the Department of Biological Sciences. He teaches a variety of courses including Introductory Biology, Vertebrate Zoology, Freshwater Biology, Evolution, The Life of Fishes, Animal Behaviour, and Field Biology. (add link to Academic Calendar) He received both his undergraduate and graduate training in Wildlife Biology from the Macdonald Campus of McGill University. His Master’s and Doctoral research involved using the common goldfish (Carassius auratus) as a model for better understanding how exotic fish become established and the impacts they have on small lakes and ponds.
He has supervised a number of undergraduate honours projects involved in behavioural ecology, including studies in testicular adduction in Howler monkeys, anti-predator vigilance in Harbour seals, age related fecundity in Tree Swallows, and the factors affecting the reproductive performance of Red-breasted Mergansers.
Dr. Richardson’s main current research efforts are directed towards a joint project with the Montreal Biosphere into the health of local fish communities and a study of the ambistomid salamanders in the Johnville Bog.
The Freshwater Fish Network represents a community-based organization of over 70 partners including schools, NGOs, municipalities, and private corporations, all dedicated to preserving the ecological integrity of the St. Lawrence River and the Great Lakes. One of the key aspects of this project is the data collected by as many as 25 schools along the St. Lawrence during supervised sampling trips organized by the Biosphere. Dr. Richardson is attempting to use this data as a means of monitoring the health of fish communities within the St. Lawrence.
The Johnville Bog, located just ten minutes from the Bishop’s campus, represents one of the best preserved examples of an acid bog habitat in Eastern Quebec. During an inventory of the amphibian species in 2001, a large number of yellow-spotted (Ambystoma maculatum) and blue-spotted salamander (A. laterale) eggs were found within the three main ponds that make up the bog. Although this species is common in the region, the finding was surprising, given that the acidity of the bogs (pH 3.4-3.8) is significantly lower than the lethal limit for the eggs and larvae of North American salamanders (pH 4.0-4.5). This raises the possibility that the bogs are acting like ecological sinks or traps, drawing in healthy adults from the surrounding “source” populations into the apparently suitable breeding habitats, only to have these young fail to successfully develop. The objective of this study is therefore to try and understand the dynamics of both the salamander species in the Johnville Bog.
Dr. Jade Savage completed her bachelor’s degree in Biology in 1998 and her PhD in Entomology in 2004 at McGill University. She joined the Department of Biological Sciences at Bishop’s University in July 2004. She has travelled extensively, throughout North America and abroad, to take part in conferences and research field expeditions in Canada, the United States, Costa Rica, Australia, and Sweden. Dr. Savage was recently awarded four grants from NSERC and FQRNT totalling $108,485 to pursue her work on the systematics and biodiversity of Diptera (true flies).
She is an adjunct professor at the University of Manitoba and an emeritus curator at the Lyman Museum of McGill University and is currently co-supervising two M.Sc. projects through these institutions. The first, by Amy Moores, investigates the impact of patch size on the Diptera fauna of peat bogs of southern Quebec and northern Vermont. The second project, by Anais Renaud, is looking at changes in the distribution and composition of the Diptera fauna of Churchill (Manitoba) over the last century.
The last few decades have seen a rapid increase of interest in conservation biology. While scientists now realize the pressing need to address the rapid loss of biological diversity, they are not always equipped with the proper tools to do so. Vascular plants and vertebrates have generally received most of the attention in terms of conservation efforts, while other species-rich taxa such as the insects have been largely ignored. The main reason for this exclusion is that insects are still lagging much behind most other groups in terms of taxonomic expertise. In an age where total species richness is often the reference measure driving conservation and management efforts, it is quite ironic that the most speciose group of animals should be excluded from a majority of biodiversity studies. In an attempt to remedy this taxonomic impediment, Dr. Savage carries out research on the systematics and biodiversity of the order Diptera.
Her research program aims at documenting the systematics and biodiversity of muscoid Diptera (house flies and relatives) in different target habitats, using a variety of analytical and conceptual approach. Field collections in south eastern Quebec and Ontario and in the arctic regions of North America and Eurasia will allow Dr. Savage to fill some gaps in the distribution record of many species, yield large numbers of species including some new to science, and document biological diversity in some of the most understudied ecosystems of the northern hemisphere. The main contribution of her research program will be to increase knowledge of muscoid Diptera systematics through phylogenetic analyses and the description of new species; produce identification keys allowing non-specialists to identify specimens; and compile data on the ecology and biodiversity of Diptera.
Dr. Stroeher is a Full Professor in the Biology Department at Bishop’s University. She earned her Bachelor’s degree in Zoology at Montana State University and completed her graduate work at the University of Washington, studying the role of Hox genes in early development of Drosophila melanogaster. She continued her research development as a Postdoctoral Fellow at the University of Calgary, studying the genetic regulation of early cell lineage decisions in Caenorhabditis elegans, and subsequently worked as a Research Associate at the University of Alberta, examining the molecular mechanisms of metabolic changes associated with abiotic stress in plants.
Dr. Stroeher’s current research focuses on the potential reintroduction of the North American cougar into Eastern Canada. For years unconfirmed sightings of cougars have been reported in several regions of Ontario, Quebec, and the Maritimes, yet no physical evidence has been collected on these animals. More important, it is not known whether these sighted cougars represent members of the North American subspecies or escapees from private owners (which tend to be members of South American subspecies). If they represent the former, this suggests a natural reintroduction or expansion of existing populations of cougars in Quebec. It is critical to identify and confirm any introduction or increase of large carnivore populations in a region because of the potential ramifications for the wilderness ecosystem and the endogenous animal population.
The objective of Dr. Stroeher’s current project is to conduct DNA analysis of field samples collected from scent poles set out in several locations across Gaspé, the Eastern Townships, and Mont Tremblant Park. Dr. Stroeher has teamed up with Dr. Marc Gauthier of Envirotel 3000 to gather and analyse hair samples collected once a month from 19 poles covered with Velcro and scented with cougar urine. The rationale was that if the pole was placed in a cougar’s home range, the indigenous cat would mark over the foreign scent and leave tufts of hair attached to the Velcro. This hair would then be used to attempt to isolate and analyse the DNA. The potential impact of these findings is significant. To date the Eastern North American cougar has been categorized as “data deficient” by the Committee on the Status of Endangered Wildlife in Canada, affording it no provincial or federal protection. If Dr. Stroeher’s research is able to demonstrate that, in fact, the North American cougar is re-establishing in Eastern Canada, this will place these animals in the “endangered” category of the Western North American cougar, affording it the federal and international protection conveyed to all endangered species.
Dr. Marc Gauthier, Envirotel 3000, Inc., Sherbrooke, Quebec.
Senate Research Committee, Bishop’s University
Dr. Stroeher’s research involves undergraduate students from Bishop’s University.
Stroeher, V.L. 2000. Molecular identification of cougars (Puma concolor) found in Quebec. Journal of Eastern Townships Studies 17:71-73.