Denis Roy

Assistant Professor,
McGill University

Department of Natural Resource Sciences
E-mail: denis.roy5@mcgill.ca




Education

PhD – University of Windsor, 2006; MSc – University of Windsor, 2000; BSc – Queen's University at Kingston


Research

My research group uses genomics techniques to assess the biocomplexity (number of populations, their sizes, and their connectivity) and adaptive potential of Arctic marine fishes. We work in collaboration with many national and international partners that provide samples from the circumpolar Arctic regions (e.g., Greenland halibut, Arctic cod among others). Our aim is to build primary ecological data on many poorly studied fishes, from which climate and ecosystem change sensitivity assessments can be made. This has timely implication for our understanding of climate change impacts on the world’s Arctic biodiversity. Another aspect of our work involves developing and applying bioinformatics tools (mostly in R) to manipulate and analyse genomic and other big data. Consequently, members of my group become proficient in code writing for data analysis and visualisation. We also use the data generated from our genomics work in forward-in-time modeling analyses predicting the impacts of changing environmental conditions on the genetic integrity and diversity of the characterised species.



Publications

26- Patterns of functional diversity along latitudinal gradients of species richness in eleven fish families
Journal Article
Diamond J , Roy D ,
2023 Global Ecology and Biogeography (Date Added: 2023-01-29)

25- Validation of quantitative fatty acid signature analysis for estimating the diet composition of free-ranging killer whales
Journal Article
Remili, A, Dietz, R, Sonne, C, Iverson, SJ, Roy, D, Rosing-Asvid, A, Land-Miller, H, Pedersen, AF, McKinney, MA
2022 Scientific Reports (Date Added: 2022-07-14)

24- Distinct gut microbiomes in two polar bear subpopulations inhabiting different sea ice ecoregions
Journal Article
Franz, M, Whyte, L, Atwood, TC, Laidre, KL, Roy, D, Watson, SE, Góngora, E, McKinney, MA
2022 Scientific Reports (Date Added: 2022-01-23)

23- A review of ecological impacts of global climate change on persistent organic pollutant and mercury pathways and exposures in arctic marine ecosystems
Journal Article
McKinney, MA, Pedro, S, Dietz, R, Sonne, C, Fisk, AT, Roy, D, Jenssen, BM, Letcher, RJ
2015 Current Zoology (Date Added: 2018-10-10)

22- Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset
Journal Article
Vihtakari, M, Elvarsson, BP, Treble, M, Nogueira, A, Hedges, K, Hussey, NE, Wheeland, L, Roy, D, Ofstad, LH, Hallfredsson, EH, Barkley, A, Estevez-Barcia, D, Nygaard, R, Healey, B, Steingrund, P, Johansen, T, Albert, OT, Boje, J
ICES Journal of Marine Science (Date Added: 2023-01-23)

21- NGS-μsat: bioinformatics framework supporting high throughput microsatellite genotyping from next generation sequencing platforms
Journal Article
Roy, D, Lehnert, SJ, Venney, CJ, Walter, R, Heath, DD
Conservation Genetics Resources (Date Added: 2023-01-23)

20- Origins of the Greenland shark (Somniosus microcephalus): Impacts of ice-olation and introgression
Journal Article
Walter, RP, Roy, D, Hussey, NE, Stelbrink, B, Kovacs, KM, Lydersen, C, McMeans, BC, Svavarsson, J, Kessel, ST, Biton Porsmoguer, S, Wildes, S, Tribuzio, CA, Campana, SE, Petersen, SD, Grubbs, RD, Heath, DD, Hedges, KJ, Fisk, AT
Ecology and Evolution (Date Added: 2023-01-23)

19- Hybrid 'superswarm' leads to rapid divergence and establishment of populations during a biological invasion
Journal Article
Roy, D, Lucek, K, Walter, RP, Seehausen, O
Molecular Ecology (Date Added: 2023-01-23)

18- Panmixia and incomplete lineage sorting can give similar mtDNA signals: response to comment by Carr and Davidson (2015)
Journal Article
Roy, D, Treble, MA, Hardie, DC, Reist, JD, Ruzzante, DE
Canadian Journal of Fisheries and Aquatic Sciences (Date Added: 2023-01-23)

17- Evidence supporting panmixia in Greenland halibut (Reinhardtius hippoglossoides) in the Northwest Atlantic
Journal Article
Roy, D, Hardie, DC, Treble, MA, Reist, JD, Ruzzante, DE
Canadian Journal of Fisheries and Aquatic Sciences (Date Added: 2023-01-23)

16- Sexual dimorphism dominates divergent host plant use in stick insect trophic morphology
Journal Article
Roy, D, Seehausen, O, Nosil, P
BMC Evolutionary Biology (Date Added: 2023-01-23)

15- Repeated and predictable patterns of ecotypic differentiation during a biological invasion: Lake-stream divergence in parapatric Swiss stickleback
Journal Article
Lucek, K, Sivasundar, A, Roy, D, Seehausen, O
Journal of Evolutionary Biology (Date Added: 2023-01-23)

14- Biocomplexity in a demersal exploited fish, white hake (Urophycis tenuis): Depth-related structure and inadequacy of current management approaches
Journal Article
Roy, D, Hurlbut, TR, Ruzzante, DE
Canadian Journal of Fisheries and Aquatic Sciences (Date Added: 2023-01-23)

13- Eutrophication causes speciation reversal in whitefish adaptive radiations
Journal Article
Vonlanthen, P, Bittner, D, Hudson, AG, Young, KA, Müller, R, Lundsgaard-Hansen, B, Roy, D, Di Piazza, S, Largiader, CR, Seehausen, O
Nature (Date Added: 2023-01-23)

12- High connectivity among habitats precludes the relationship between dispersal and range size in tropical reef fishes
Journal Article
Mora, C, Treml, EA, Roberts, J, Crosby, K, Roy, D, Tittensor, DP
Ecography (Date Added: 2023-01-23)

11- Development and design of five multi-locus microsatellite PCR panels for population genetic surveys of white hake (Urophycis tenuis) in the Northwest Atlantic
Journal Article
Roy, D, Paterson, IG, Hurlbut, TR, Ruzzante, DE
Conservation Genetics Resources (Date Added: 2023-01-23)

10- Hybridization between distant lineages increases adaptive variation during a biological invasion: Stickleback in Switzerland
Journal Article
Lucek, K, Roy, D, Bezault, E, Sivasundar, A, Seehausen, O
Molecular Ecology (Date Added: 2023-01-23)

9- Correlating shape variation with feeding performance to test for adaptive divergence in recently invading stickleback populations from Swiss peri-alpine environments
Unsupported: Serial (Book, Monograph)
Roy, D, Lucek, K, Bühler, E, Seehausen, O
Lecture Notes in Earth Sciences (Date Added: 2023-01-23)

8- Divergence along a steep ecological gradient in lake whitefish (Coregonus sp.)
Journal Article
Vonlanthen, P, Roy, D, Hudson, AG, LargiadÈr, CR, Bittner, D, Seehausen, O
Journal of Evolutionary Biology (Date Added: 2023-01-23)

7- The plankton community of Lake Matano: Factors regulating plankton composition and relative abundance in an ancient, tropical lake of Indonesia
Journal Article
Sabo, E, Roy, D, Hamilton, PB, Hehanussa, PE, McNeely, R, Haffner, GD
Hydrobiologia (Date Added: 2023-01-23)

6- Speciation reversal and biodiversity dynamics with hybridization in changing environments
Journal Article
Seehausen, O, Takimoto, G, Roy, D, Jokela, J
Molecular Ecology (Date Added: 2023-01-23)

5- Body shape vs. colour associated initial divergence in the Telmatherina radiation in Lake Matano, Sulawesi, Indonesia
Journal Article
Roy, D, Docker, MF, Haffner, GD, Heath, DD
Journal of Evolutionary Biology (Date Added: 2023-01-23)

4- Resource-based adaptive divergence in the freshwater fish Telmatherina from Lake Matano, Indonesia
Journal Article
Roy, D, Paterson, G, Hamilton, PB, Heath, DD, Haffner, GD
Molecular Ecology (Date Added: 2023-01-23)

3- Evidence of small-scale vicariance in Caridina lanceolata (Decapoda: Atyidae) from the Malili Lakes, Sulawesi
Journal Article
Roy, D, Kelly, DW, Fransen, CHJM, Heath, DD, Haffner, GD
Evolutionary Ecology Research (Date Added: 2023-01-23)

2- Genetic and morphological data supporting the hypothesis of adaptive radiation in the endemic fish of Lake Matano
Journal Article
Roy, D, Docker, MF, Hehanussa, P, Heath, DD, Haffner, GD
Journal of Evolutionary Biology (Date Added: 2023-01-23)

1- Estimating fish production potentials using a temporally explicit model
Journal Article
Roy, D, Haffner, GD, Brandt, SB
Ecological Modelling (Date Added: 2023-01-23)