Dr. Chris Edge

Image Christopher Edge
Research Scientist

Chris Edge is a Research Scientist with Natural Resources Canada – Canadian Forest Service and an Adjunct Professor in the Department of Biology at the University of New Brunswick. Chris’ research aims to understanding how forest ecosystems respond to disturbance at broad spatial and long temporal scales. Research that requires, laboratory, mesocosm, and whole ecosystem experiments combined with population modelling and theoretical ecology. The ultimate goal of Chris’ research is to inform sustainable forest management at the scale of landscapes.

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Key publications

Edge, C.B., W. Haines, M. Blaney, and M. Noel. 2023. Low detection of glyphosate in rivers following application in forestry. Pest Management Science. 10.1002/ps.7473

Edge, C.B., L.B. Baker, E. Smenderovac, S. Heartz, and E. Emilson. 2022. Tebufenozide has limited direct effects on simulated aquatic communities. Ecotoxicology. 10.1007/s10646-022-02582-y

Camaclang, A.E., J. Currie, E. Giles, G.J. Forbes, C.B. Edge, W.A. Monk, J.J. Nocera, C. Browne, Z.G.O. Malley, J. Snider, and T.G. Martin. 2021. Prioritizing threat management across terrestrial and freshwater realms for species conservation and recovery. Conservation Sceince and Practice. 10.1111/csp2.300

Edge, C.B., M.I. Brown, S. Heartz, D. Thompson, L. Ritter, and M. Ramadoss. 2021. The persistence of glyphosate in vegetation one year after application. Forests. 12.103390/fl2050601

Edge, C.B., L.F. Baker, C.M. Lanctôt, S.D. Melvin, M.K. Gahl, M. Kurban, L. Navarro-Martin, K.A. Kidd, V.L. Trudeau, D.G. Thompson, J.F. Mudge, and J.E. Houlahan. 2020. Compensatory indirect effects of an herbicide on wetland communities. Science of the Total Environment. 718:137254.

Edge, C.B., and M.J. Fortin. 2020. Habitat network topology influences the importance of ecological traps in metapopulations. Ecosphere. 11:e03146

Paterson, J.E., J. Baxter-Gilbert, F. Beaudry, A. Carstairs, P. Chow-Fraser, C.B. Edge, A.M. Lentini, J.D. Litzgus, C.E. Markle, K. McKeown, J.A. Moore, J.M. Refsnider, J.L. Riley, J.D. Rouse, D.C. Seburn, J.R. Zimmerling, and C.M. Davy. 2019. Road avoidance and its energetic consequences on reptiles. Ecology and Evolution. DOI: 0.1002/ece3.5515.

Nathan, L.R., N. Mamoozadeh, H.R. Tumas, S. Gunselman, K. Klass, A. Metcalfe, C. Edge, L. Waits, P. Spruell, E. Lowery, E. Connor, A. Bearlin, M.J. Fortin, and E. Landguth. 2019. A simulation framework for evaluating fish hybridization dynamics in heterogeneous riverscapes. Ecological Modelling. 401:40-51.

Thompson, D.G., T. Swystun, J. Cross, R. Cross, D. Chartrand, and C.B. Edge. 2018. Fine- and coarse-scale movements and habitat utilization by Wood Turtles (Glyptemys insculpta) based on probabilistic modeling of tadio- and GPS-telemetry data. Canadian Journal of Zoology.

Choy, M., D. Lawrie, and C.B. Edge. 2018. Measuring 30 years of improvements to aquatic connectivity in the Greater Toronto Area. Aquatic Ecosystem Health & Management. DOI: 10.1080/14634988.2018.1497400

Edge, C.B., M.J. Fortin, N. Shrestha, D. Lawrie, and D. Jackson. 2017. Habitat alteration and habitat fragmentation differentially affect beta diversity of stream fish communities. Landscape Ecology. 32:647-662.

Edge, C.B.*, N.J. Rollinson, R.J*. Brooks, J. Congdon, F. Janzen, and J.D. Litzgus. 2017. Phenotypic plasticity of nest timing in a post-glacial landscape: how do long-lived reptiles adapt to seasonal time constraints? Ecology. 98:512-524.
*Authors contributed equally to this work.

Edge, C.B, J.E. Houlahan, D. Jackson, and M.J. Fortin. 2016. The response of amphibian larvae to environmental change is both consistent and variable. Oikos. 125:1700-1711

Mui, A.B., C.B. Edge, J.E. Paterson, B. Caverhill, J.D. Litzgus, B. Johnson, and Y. He. 2016. Nesting sites in agricultural landscapes are a potential sink for Blanding’s turtle (Emydoidea blandingii) populations. Canadian Journal of Zoology. 94: 61-67.

Edge, C.B., M.K. Gahl, D.G. Thompson, and J.E. Houlahan. 2014. Variation in amphibian response to two formulations of glyphosate-based herbicides. Environmental Toxicology and Chemistry. 33:2628-2632.

Edge, C.B., D.G. Thompson, C. Hao, and J.E. Houlahan. 2014. The response of amphibian larvae to exposure to a herbicide (Roundup WeatherMax) and nutrient enrichment in an ecosystem experiment. Ecotoxicology and Environmental Safety. 109:124-132.

Edge, C.B., M.K. Gahl, D.G. Thompson, and J.E. Houlahan. 2013. Laboratory and field exposures of two species of juvenile amphibians to a glyphosate-based herbicide and Batrachochytrium dendrobatidis. Science of the Total Environment. 444: 145-152.

Edge, C.B., D.G. Thompson, and J.E. Houlahan. 2013. Differences in the phenotypic mean and variance between two geographically separated populations of wood frog (Lithobates sylvaticus). Evolutionary Biology. 40:276-287.

Lanctôt, C., C. Robertson, L Navarro-Martín, C. Edge, S. Melvin, J. Houlahan and V.L. Trudeau. 2013. Effects of the glyphosate-based herbicide Roundup WeatherMax® on metamorphosis of wood frogs (Lithobates sylvaticus) in natural wetlands. Aquatic Toxicology. 140: 48-57.

Rollinson, N.J.*, C.B. Edge*, and R.J. Brooks. 2013. Recurrent violations of invariant rules for offspring size: evidence from turtles and the implications for small clutch size models. Oecologia. 172:973–982.
*Authors contributed equally to this work.

Edge, C.B., D.G. Thompson, C. Hao and J.E. Houlahan. 2012. A silviculture application of the glyphosate-based herbicide VisionMax™ to wetlands has limited direct effects on amphibian larvae. Environmental Toxicology and Chemistry. 31(10): 2375-2383.

Mudge, J.F., L.F. Baker, C.B. Edge, and J.E. Houlahan. 2012. Setting an optimal α that minimizes errors in null hypothesis significance tests. PLoSone. 7(2): e32734. doi:10.1371/journal.pone.0032734.

Mudge, J.F., C.B. Edge, L.F. Baker, and J.E. Houlahan. 2012. If all of your friends jumped off a bridge used α = 0.05, would you do it too? Integrated Environmental Assessment and Management. 8(3):563-564.

Navarro-Martin, L., C. Lanctot, C. Edge, J. Houlahan, and V.L. Trudeau. 2012. Expression profiles of metamorphosis-related genes during natural transformations in wild wood frog (Lithobates sylvaticus) tadpoles. Canadian Journal of Zoology. 90: 1059-1071.

Edge, C.B., M.K. Gahl, B.D. Pauli, D.G. Thompson, and J.E. Houlahan. 2011. Exposure of juvenile green frogs (Lithobates clamitans) in littoral enclosures to a glyphosate-based herbicide. Ecotoxicology and Environmental Safety. 74: 1363-1369.

Edge, C.B., B.D. Steinberg, R.J. Brooks, and J.D. Litzgus. 2010. Habitat selection by Blanding’s turtles (Emydoidea blandingii) in a relatively pristine landscape. Ecoscience. 17:90-99.

Edge, C.B., B.D. Steinberg, R.J. Brooks, and J.D. Litzgus. 2009. Temperature and site selection by Blanding’s Turtles (Emydoidea blandingii) during hibernation near the species’ northern range limit. Canadian Journal of Zoology. 87: 825-834.