I have had the rare privilege to turn my childhood fascination into a career. I grew up catching snakes, turtles and toads in the forests and creeks near my house. As a professor, I have the opportunity to share my passion for these animals and their conservation with students in the classroom and in the field.
I did my undergraduate degree at the University of Guelph. There I met herpetologists Ron Brooks and Jim Bogart, and so began my formal training in herpetology. I did my MSc under Ron’s supervision at Guelph, studying the population ecology of Spotted Turtles at their northern range limit. In the summers, I taught biology to kids at a canoe-tripping camp, and so got to combine my interests in biology, teaching, and the outdoors.
Between my MSc and PhD, I worked as a Lab Coordinator in the Cryobiology Lab at Miami University in Oxford, Ohio, USA. I worked with Rick Lee and Jon Costanzo, and their graduate and undergraduate students. I learned a whole new set of skills and gained an appreciation for physiological-ecology and the incredible adaptations that herps have for surviving winter.
After three years in the Cryo Lab, I decided it was time for me to return to graduate school, to answer the questions about latitudinal variation in turtle life histories that arose during my MSc research. So I left Ohio and moved to South Carolina to study the population ecology of Spotted Turtles at their southern range limit. I worked under the supervision of Tim Mousseau, an ex-pat Canadian, at the University of South Carolina in Columbia.
After completion of my PhD, I moved to Long Island, New York to live with my husband, Dr. Thomas Merritt who was doing a post doc at Stony Brook University (he is now a prof here at Laurentian in the Department of Chemistry & Biochemistry). While in New York, I worked as an Adjunct Professor at Long Island University and as a research associate at Applied Biomathematics.
Then, in spring 2004, I was offered the faculty position here at Laurentian University, and so I moved back home to Ontario after 8 years in the USA. I have been a professor at Laurentian since July 2004.
"I look at this turtle now in my hand and wonder what grace allows me to hold and ponder such a tangible piece of the history of life on earth..." David M. Carroll. 1991. The Year of the Turtle: A Natural History
- BSc 1993 Wildlife Biology, University of Guelph
- MSc 1996 Ecology, University of Guelph
- PhD 2003 Ecology, Evolution, and Organismal Biology, University of South Carolina
2014-present Full Professor, Laurentian University
2009-2014 Associate Professor, Laurentian University
2004-2009 Assistant Professor, Laurentian University
2004 Adjunct Professor, Long Island University, New York
1996-1999 Research Lab Coordinator, Miami University, Ohio
Cross-appointed to LU School of the Environment
Adjunct Professor, Queen's University
Chair of the Board, Algonquin Wildlife Research Station
On The Web
My research program combines field and lab-based approaches, and basic and applied science. Projects in my lab address questions in the areas of evolutionary ecology and conservation biology of reptiles, including examination of the adaptive significance of life history variation, and the application of these data to mitigation and recovery actions. Recent and current research examined/examines variation in the life history and ecology of federally-listed turtle and snake species, with emphasis on demography, maternal investment, road ecology, spatial ecology and habitat selection. The physiological research examines questions about the adaptive bioenergetic, fitness, and thermoregulatory consequences of certain behaviours, particularly summer and winter dormancy, in reptiles.
Our research is funded primarily by NSERC, and previously by the Ontario government through the Species at Risk Research Fund (SARRF) and the Species at Risk Stewardship Fund (SARSF). We have also received support from Environment Canada's Habitat Stewardship Program (HSP) and the Canadian Wildlife Federation. We are grateful to our partners, especially Ontario Parks, for their financial and in-kind support.
Team Litzgus Research News
March 2020: Congrats to Damien on the publication of his MSc work in Biological Conservation! This work was a collaborative effort among many people over a long time, and we are extremely grateful for the opportunity to have participated in the work, and to see the results of the analyses come to light in a top-notch journal.
January 2020: Many of the lab members went to the World Congress of Herpetology in Dunedin, NZ! We delivered 9 presentations. Herps and Hobbits - what could be better?!
September 2019: The Litzgus Lab is back from the CHS conference in Montreal. The lab gave 11 presentations, and Katie won best student talk - congrats Katie! Making the Team proud.
August 2019: With the acceptance of Gabby's paper in Global Ecology and Conservation, the Litzgus Lab marks a milestone of 80 peer-reviewed full-length papers; 95 peer-reviewed papers in total including our 15 peer-reviewed notes. So proud of the Team!
May 31, 2019: Congratulations to Gabby on the defense of her MSc! A huge thanks to Dr. Chantel Markle from McMaster University for making the trip up to LU to serve as the External Examiner, and for sharing her great insights on Blanding's Turtle spatial ecology and conservation. Congrats Master Gabby!
May 30 2019: Congratulations to Sean on the successful defense of his PhD! Special thanks to his two External Examiners, Dr. Colleen StClair from U Alberta and Dr. Kimberly Andrews from U Georgia, for attending by ZOOM, and for staying on ZOOM even after it disconnected us mid-exam, to talk about forest fires and alligators while committee member Dr. Jeff Bowman went on a coffee run. Congrats Dr. Sean! My first PhD student to finish!
March 2019: Litzgus Lab members collaborated with the Valenzuela Lab at Iowa State to publish a paper in Scientific Reports about the demographic collapse of TSD animals as a result of climate change.
February 2019: Litzgus Lab alumni shine! Dr. James Paterson received a prestigious Liber Ero post doc fellowship (http://liberero.ca/meet-the-fellows/) and Dr. Julia Riley received a highly-competitive NSERC-PDF. Congrats!
January 2019: Congratulations to Damien on the defense of his MSc! Despite substantial technical difficulties, Damien smiled his way through his amazing science. A huge thanks to Dr. Mike Jones, the Massachusetts state herpetologist, for serving as the External Examiner. Congrats Master Damien!
January 2019: Happy new year! The Litzgus Lab welcomes two new members: Allie Gallon who will be working with Huron Stewardship Council on the spatial ecology of hog-nosed snakes, and Heather VanDenDiepstraten who will take on the Bruce Power CRD project. Welcome to the Team!
December 2018: We rang in the first day of winter with a snowstorm and Steven's MSc defense. Sincere thanks to Dr. Ricky Spencer who joined us by video conference in the wee hours of the Australian morning to serve as the External Examiner. Congrats Master Steven!
September 2018: The Litzgus Lab welcomes the new school year with new MSc student, Carter R, joining the Team. Carter comes from the Rollinson Lab at UofT, and has been part of the crew working on the long-term turtle study at the WRS in Algonquin Park.
July 2018: Exciting news from NSERC! Our CRD grant with Bruce Power was funded. This project will examine how changes in lake levels impact turtle spatial ecology and nest site selection, and will help to fulfill the environmental responsibility mandate of Bruce Power, who have been amazing partners over the past several years.
May 2018: The Litzgus Lab and collaborators welcome four new graduate students: Cory T, Tharusha, Jonathan, and Matt M have joined the Team!
March 2018: Jackie received the Laurentian Research Excellence Award at the Research Week Gala and Awards Ceremony. Jackie also received a Mentorship Award from Magnetawan First Nation for her contributions to their long-term Species At Risk program.
Thanks to to the Team for their amazing contributions to these honours -- I couldn't get here without you!
November 2017: Jackie has been using her sabbatical time to try her hand at creative writing. She published a couple of articles in the online magazine called The Conversation. One of her articles, about turtle hibernation, received over 80,000 reads in less than a week! https://theconversation.com/the-secret-to-turtle-hibernation-butt-breathing-86727
Current Graduate Student Projects (9)
Jonathan Choquette (Ph.D. candidate, part-time; co-supervised w/ T. Pitcher, NSERC CREATE ReNewZoo program) - Reintroduction of Massasauga Rattlesnakes into Ojibway Prairie.
Alexandria Gallon (M.Sc. candidate) - Distribution and spatial ecology of Hog-nosed Snakes in Huron County.
Matt Keevil (Ph.D. candidate, part-time) - Demographic processes and the role of dispersal in a long-lived species after a local catastrophe.
Cory Kozmik (M.Sc. candidate, part-time) - Understanding spatial requirements of a vulnerable reptile community to measure impacts of large-scale development: Informing cost-effective mitigation planning in Eastern Georgian Bay.
Matt Macpherson (M.Sc. candidate; co-supervised w/ S. Lougheed) - Testing the effectiveness of various styles of exclusion fencing to reduce road mortality of Ratsnakes.
Carter Rouleau (M.Sc. candidate; co-supervised w/ J. Riley) - Socioecology of the Midland Painted Turtle in Algonquin Park.
Cory Trowbridge (M.Sc. candidate) - Effects of windfarms on herpetological community, population and spatial ecologies.
Heather VanDenDiepstraten (M.Sc. candidate) - Effects of changing lake levels on turtle spatial ecology, nest site selection, and population viability.
Tharusha Wijewardena (Ph.D. candidate; co-supervised w/ N. Mandrak, NSERC CREATE ReNewZoo program) - Evaluation of the Blanding's Turtle reintroduction program into the Rouge National Urban Park, Toronto.
Graduate Student and Post Doc Alumni (24)
James Baxter-Gilbert (M.Sc. 2014; co-supervised w/ D. Lesbarrères) – The long road ahead: Understanding road-related threats to reptiles and testing if current mitigation measures are effective at minimizing impacts.
Amanda Bennett (M.Sc. 2009) – Effects of habitat fragmentation on the spatial ecology and genetics of Northern Map Turtles (Graptemys geographica).
Sean Boyle (Ph.D. 2019: co-supervised w/ D. Lesbarreres) - A road to conservation: Understanding the dynamics of road-effects and road-effects mitigation.
Michael Colley (M.Sc. 2015; co-supervised w/ S. Lougheed) - Evaluating population-level effectiveness of road mortality mitigation for the Eastern Massasauga Rattlesnake.
Christina Davy (Post doc; 2016) – Detection rates of SAR reptiles in Ontario: Using meta-analyses to produce evidence-based guidelines.
Christopher Edge (M.Sc. 2008; co-supervised w/ R.J. Brooks) – Multiple scale habitat selection in Blanding’s Turtles (Emydoidea blandingii).
Katie Ellsworth (G. Dip. Science Communication 2019) - Assessing people's knowledge and opinions about turtle road mortality mitigation.
Jean Enneson (M.Sc. 2007) – Population viability analysis and response to habitat change in Spotted Turtles (Clemmys guttata).
Donnell Gasbarrini (M.Sc. 2016; co-supervised w/ D. Lesbarreres) - Investigation into the cause of a mass mortality of a long-lived species in a Provincial Park and an evaluation of recovery strategies.
William Greaves (M.Sc. 2007; OGS scholar) – A cold and harsh environment: Demography and spatial ecology of a northern population of Wood Turtles (Glyptemys insculpta).
Geoffrey Hughes (M.Sc. 2016) - Navigating the thermal landscape: Spatial-thermal ecology of Wood Turtles in the north.
Steven Kell (M.Sc. 2018) - Nesting in close quarters: Causes and benefits of high-density nesting in Painted Turtles.
Jolene Laverty (M.Sc. 2010) – Measuring the effects of water-based recreation on turtle populations in an Ontario Park.
Michelle Martin (M.Sc. 2011; co-supervised w/ J. Hamr) – Spatial behaviour and habitat use by Elk (Cervus elaphus) in response to highway construction and interprovincial relocation.
Hannah McCurdy-Adams (M.Sc. 2016; OGS scholar) - Anthropogenic influences on chronic stress and patterns of nest predation in freshwater turtles.
Patrick Moldowan (M.Sc. 2014) - Sexual dimorphism and alternative reproductive tactics in the Midland Painted Turtle.
Damien Mullin (M.Sc. 2019; NSERC CREATE ReNewZoo program) - Evaluating the effectiveness of headstarting for Wood Turtle population recovery.
James Paterson (M.Sc. 2011; NSERC scholar) – Mitigating human impacts through residence creation and assessment of critical habitat for turtle species at risk.
Megan Rasmussen (M.Sc. 2009) – Habitat selection, foraging ecology, and maternal investment in a Lake Huron population of Spotted Turtles (Clemmys guttata): Implications for conservation and management.
Dan Reeves (M.Sc. 2007) – Modeling critical breeding habitat and body size variation in the federally endangered Spotted Turtle (Clemmys guttata).
Julia Riley (M.Sc. 2012; NSERC scholar) – The importance of nest micro-environment for turtle conservation, hatchling overwintering strategy, and fitness.
Kiyoshi Sasaki (Post doc; 2014) - Impact assessment and development of ecological restoration strategies for reptiles and amphibians inhabiting mining-disturbed environments.
Katharine Yagi (M.Sc. 2010) – The effects of flooding on the spatial ecology and thermoregulation of Spotted Turtles (Clemmys guttata) in a southern Ontario population.
Gabriella Zagorski (M.Sc. 2019; co-supervised w/ D. Boreham) - Using spatial ecology data to inform development and mitigaiton of a trap rock quarry in Blanding's Turtle habitat.
- Research Excellence Award, Laurentian University, March 2018
- Mentorship Award, Magnetawan First Nation Lands Department, in recognition of long-term contributions to their Species At Risk program, March 2018
- Blue Racer Award, Canadian Herpetological Society, in recognition of HQP training and long-standing contributions to research and conservation of amphibians and reptiles in Canada, September 2016
- Community Builders Award of Excellence, Environment category (with Baxter-Gilbert, Riley, and Lesbarreres), City of Greater Sudbury, March 2015
- Research Excellence Award, Faculty of Science and Engineering, Laurentian University, 2013
- Adjunct Professor, Queen's University, Kingston, ON
- Cross-appointed, LU School of the Environment
- Board Chair, Algonquin Wildlife Research Station (http://www.algonquinwrs.ca/)
- Associate Editor, Copeia, American Society of Ichthyologists and Herpetologists (ASIH)
- Associate Editor, Canadian Journal of Zoology
- Associate Editor, Herpetological Conservation and Biology
- President, Canadian Herpetological Society (http://canadianherpetology.ca/index.html)
- Member, Tortoise and Freshwater Turtle Subcommittee of IUCN
- Board of Governors, ASIH
- Board of Governors, SSAR
BIOL 3067 Winter Ecology (winter term, odd years, 3 cr)
BIOL 3726 Animal Histology (winter term, even years, 3 cr)
BIOL 3746 Animal Ecology (fall term, even years, 3 cr)
BIOL 4035 Research and Seminar 4th year thesis (fall and winter terms, 6 cr; with Dr. Jeff Gagnon)
BIOL 4747 Herpetology (fall term, odd years, 3 cr)
2014-present only (* HQP/student author)
Dillon, R.M.*, S.P. Boyle*, J.D. Litzgus, and D. Lesbarreres. 2020. Built it and some will use it: A test of road ecopassages for Eastern Gartersnakes. Journal of Herpetology (in press).
Moldowan, P.D.*, R.J. Brooks, and J.D. Litzgus. 2020. Demographics of injuries indicate sexual coercion in a population of Painted Turtles (Chrysemys picta). Canadian Journal of Zoology (10.1139/cjz-2019-0238).
Mullin, D.I.*, R.C. White, A.M. Lentini, R.J. Brooks, K.R. Beriault, and J.D. Litzgus. 2020. Predation and disease limit population recovery following 15 years of headstarting an endangered freshwater turtle. Biological Conservation (accepted for publication 29 February 2020; ms# BIOC-2019-1519.R1).
Boyle, S.P.*, R. Dillon*, J.D. Litzgus, and D. Lesbarreres. 2019. Desiccation of herpetofauna on roadway exclusion fencing. Canadian Field-Naturalist 133(1): 43-48 (https://doi.org/10.22621/cfn.v133i1.2076).
Hawkshaw, D.M.*, P.D. Moldowan*, J.D. Litzgus, R.J. Brooks, and N. Rollinson. 2019. Discovery and description of a novel sexual weapon in the world's most widely-studied freshwater turtle. Evolutionary Ecology (doi: 10.1007/s10682-019-10014-3).
Heaven, P.C., J.D. Litzgus, and M.T. Tinker. 2019. A unique barrier wall and underpass to reduce road mortality of three freshwater turtle species. Copeia 107(1): 92-99.
Hughes, G.N.* and J.D. Litzgus. 2019. Impact of natural resource extraction on thermal properties of wood turtle (Glyptemys insculpta) habitat. Journal of Thermal Biology 84: 469-478 (doi: 10.1016/j.jtherbio.2019.07.031).
Hughes, G.H.*, M.Q. Kennedy*, and J.D. Litzgus. 2019. Preliminary assessment of the success of rehabilitation in snapping turtles (Chelydra serpentina) through post-release measures of spatial behavior and body condition. Herpetological Review 50(1): 58-62.
Moldowan, P.D.*, R.J. Brooks, and J.D. Litzgus. 2019. Demographics of injuries indicate sexual coercion in a population of Painted Turtles (Chrysemys picta). Canadian Journal of Zoology (accepted 5 December 2019; ms# cjz-2019-0238.R1).
Paterson, J.E., J. Baxter-Gilbert, F. Beaudry, S. 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 for reptiles. Ecology and Evolution (doi: 10.1002/ece3.5515).
Valenzuela, N., R. Literman, J. Neuwald, B. Mizoguchi, J. Iverson, J.L. Riley, and J. Litzgus. 2019. Extreme thermal fluctuations from climate change to unexpectedly accelerate demographic collapse of vertebrates with temperature-dependent sex determination. Scientific Reports 9: 4254 (doi: 10.1038/s41598-019-40597-4).
Zagorski, G.Z.*, D.J. Boreham, J.D. Litzgus. 2019. Endangered species protection and evidence-based decision-making: Case study of a quarry proposal in endangered turtle habitat. Global Ecology and Conservation (https://doi.org/10.1016/j.gecco.2019.e00751).
Zagorski, G.*, D. Boreham, and J.D. Litzgus. 2019. Emydoidea blandingii (Blanding’s Turtle). Feeding. Herpetological Review 50(1): 121.
Janzen, F.J. L. Hoekstra, R.J. Brooks, D. Carroll, J.W. Gibbons, J. Greene, J. Iverson, J.D. Litzgus, E. Michael, S. Parren, W. Roosenburg, G. Strain, J. Tucker, and G. Ultsch. 2018. Altered spring phenology of North American freshwater turtles and the importance of representative populations. Ecology and Evolution 8: 5815-5827 (doi: 10.1002/ece3.4120).
Keevil, M.G.*, R.J. Brooks, and J.D. Litzgus. 2018. Post-catastrophe patterns of abundance and survival reveal no evidence of population recovery in a long-lived animal. Ecosphere (doi: 10.1002/ecs2.2396).
Marchand, K.A.*, G.N. Hughes*, and J.D. Litzgus. 2018. Geographic variation in somatic growth rate of Wood Turtles (Glyptemys insculpta). Copeia 106(3): 477-484.
Moldowan, P.D.*, R.J. Brooks, and J.D. Litzgus. 2018. Sex-biased seasonal capture rates in the Painted Turtle (Chrysemys picta). Canadian Field-Naturalist 132(1): 20-24.
Mullin, D.I.*, R.C. White, J.L. Mullen, J.K. Walton*, and J.D. Litzgus. 2018. Glyptemys insculpta (Wood Turtle). Predation. Herpetological Review 49(1): 106-107.
Zagorski, G.*, D. Boreham, and J. Litzgus. 2018. Emydoidea blandingii (Blanding’s Turtle). Aggression. Herpetological Review 49(1): 106.
Baxter-Gilbert, J.H.*, J.L. Riley*, S.P. Boyle, D. Lesbarreres, and J.D. Litzgus. 2017. Turning the threat into a solution: Using roadways to survey cryptic species and to identify locations for conservation. Australian Journal of Zoology (doi: 10.1071/ZO17047).
Boyle, S.*, J.D. Litzgus, and D. Lesbarreres. 2017. Road surveys vs. circuit theory to predict hotspot locations: benefits and challenges for implementing road-effect mitigation. Biodiversity and Conservation 26(14): 3445-3463 (doi: 10.1007/s10531-017-1414-9).
Colley, M.*, S. Lougheed, K. Otterbein, and J.D. Litzgus. 2017. Mitigation reduces road mortality of a threatened rattlesnake. Wildlife Research 44(1): 48-59 (doi: 10.1071/WR16130).
Edge, C., N. Rollinson, R. Brooks, J. Congdon, J. Iverson, F. Janzen, and J. Litzgus. 2017. Phenotypic plasticity of nest timing in a post-glacial landscape: How do reptiles adapt to seasonal time constraints? Ecology 98(2): 512-524.
Keevil, M.G.*, B.S. Hewitt*, R.J. Brooks, and J.D. Litzgus. 2017. Patterns of intraspecific aggression inferred from injuries in an aquatic turtle with male-biased size dimorphism. Canadian Journal of Zoology 95: 393-403 (doi: 10.1139/cjz-2016-0182.
Moldowan, P.D.*, R.J. Brooks, and J.D. Litzgus. 2017. Assessing cranial dimorphism in the midland painted turtle (Chrysemys picta marginata) using a photographic questionnaire. Chelonian Conservation and Biology 16(1): 76-82 (doi: 10.2744/CCB-1235.1).
Riley, J.L.*, J.H. Baxter-Gilbert*, and J.D. Litzgus. 2017. A comparison of three external transmitter attachment methods for snakes. Wildlife Society Bulletin 4(1): 132-139 (doi: 10.1002/wsb.748).
Colley, M.*, S. Lougheed, K. Otterbein, and J.D. Litzgus. 2016. Nerodia sipedon sipedon (Northern Watersnake). Reproduction / Arboreal mating. Herpetological Review 47(1): 149-150.
Hughes, G.H.*, L. Monck-Whipp, and J.D. Litzgus. 2016. Glyptemys insculpta (Wood Turtle). Potential anting behavior. Herpetological Review 47(3): 445-446.
Laverty, J.F.*, B. Korol, and J.D. Litzgus. 2016. Measuring the effects of water-based recreation on the spatial ecology of Eastern Musk Turtles (Sternotherus odoratus) in a Provincial Park in Ontario, Canada. Copeia 104(2): 440-447 (doi: 10.1643/CE-15-284).
Moldowan, P.D.*, R.J. Brooks, and J.D. Litzgus. 2016. Quantification of cranial and tomiodont dimorphism in Testudines using the Midland Painted Turtle (Chrysemys picta marginata). Zoomorphology (doi: 10.1007/s00435-016-0320-0).
Moldowan, P.D.*, R.J. Brooks, and J.D. Litzgus. 2016. Turtles with “teeth”: Beak morphology of Testudines with a focus on the tomiodonts of Painted Turtles (Chrysemys spp.). Zoomorphology 135: 121-135 (doi: 10.1007/s00435-015-0288-1).
Mui, A.B.*, C.B. Edge*, J.E. Paterson*, B. Caverhill, B. Johnson, J.D. Litzgus, and Y. He. 2016. Nesting sites in agricultural landscapes are a potential sink for turtle populations. Canadian Journal of Zoology 94: 61-67 (doi: 10.1139/cjz-2015-0154).
Riley, J.L.*, J.H. Baxter-Gilbert*, C. Guglielmo, and J.D. Litzgus. 2016. A novel approach for measuring body condition of snakes using quantitative magnetic resonance. Journal of Herpetology 50(4): 627-632 (doi: 10.1670/15-113).
Sasaki, K.*, D. Lesbarrères, C. Tremblay Beaulieu*, G. Watson and J.D. Litzgus. 2016. Effects of a mining-altered environment on individual fitness of amphibians and reptiles. Ecosphere 7(6): e01360 .
Baxter-Gilbert*, J.H., J.L. Riley*, D. Lesbarrères, and J.D. Litzgus. 2015. Mitigating reptile road mortality: Fence failures compromise ecopassage effectiveness. PLoS ONE (doi: 10.1371/journal.pone.0120537).
Baxter-Gilbert*, J.H., J.L. Riley*, C.J.H. Neufeld*, J.D. Litzgus, and D. Lesbarrères. 2015. Road mortality responsible for billions of pollinating insect deaths annually. Journal of Insect Conservation 19(5): 1029-1035 (doi: 10.1007/s10841-015-9808-z).
Baxter-Gilbert*, J.H., J.L. Riley*, P. Moldowan*, and J.D. Litzgus. 2015. Sistrurus catenatus catenatus (Eastern Massasauga) and Nerodia sipedon sipedon (Northern Watersnake). Diet and foreign object. Herpetological Review 46(1): 107.
Bennett, A.M.*, M.G. Keevil*, and J.D. Litzgus. 2015. Sternotherus odoratus (Eastern Musk Turtle). Home range. Herpetological Review 46(2): 245-246.
Boyle, S.*, J.D. Litzgus, and D. Lesbarrères. 2015. Chelydra serpentina (Snapping Turtle). Injury. Herpetological Review 46(2): 240-241.
Moldowan, P.D.*, M.G. Keevil*, P.B. Mills, R.J. Brooks, and J.D. Litzgus. 2015. Diet and feeding behaviour of Snapping Turtles (Chelydra serpentina) and Midland Painted Turtles (Chrysemys picta marginata) in Algonquin Provincial Park, Ontario. Canadian Field-Naturalist 129(4): 403-408.
Moldowan, P.D.*, M.G. Keevil*, S. Kell*, R.J. Brooks, and J.D. Litzgus. 2015. Anti-predator defenses of Brown Bullheads (Ameiurus nebulosus) and interactions with Snapping Turtles (Chelydra serpentina). Canadian Field-Naturalist 129(2): 189-193. [journal cover photo by P.D. Moldowan]
Moldowan, P.D.*, M.G. Keevil*, N. Koper, R.J. Brooks, and J.D. Litzgus. 2015. Growth, sexual maturity, and reproduction of a female Midland Painted Turtle (Chrysemys picta marginata) afflicted with kyphosis. Chelonian Conservation and Biology 14(2): 157-160.
Sasaki, K.*, D. Lesbarrères, G. Watson, and J.D. Litzgus. 2015. Mining-caused changes to habitat structure affect amphibian and reptile population ecology more than metal pollution. Ecological Applications 25(8): 2240-2254 (doi.org/10.1890/14-1418.1).
Baxter-Gilbert*, J.H., J.L. Riley*, G. Mastromonaco, J.D. Litzgus, and D. Lesbarrères. 2014. Using a novel technique to measure chronic levels of corticoste.rone in turtles living around a major roadway. Conservation Physiology 2 doi: 10.1093/conphys/cou036.
Bennett, A.M.* and J.D. Litzgus. 2014. Injury rates of species at risk turtles on a recreational waterway in Ontario, Canada. Journal of Herpetology 48(2): 262-266.
Lesbarrères, D., S.L. Ashpole, C.A. Bishop, G. Blouin-Demers, R.J. Brooks, P. Echaubard, P. Govindarajulu, D.M. Green, S.J. Hecnar, T. Herman, J. Houlahan, J.D. Litzgus, M.J. Mazerolle, C.A. Paszkowski, P. Rutherford, D.M. Schock, K.B. Storey, and S.C. Lougheed. 2014. Conservation of herpetofauna in northern landscapes: Threats and challenges from a Canadian perspective. Biological Conservation 170: 48-55.
Paterson, J.E.*, B.D. Steinberg, and J.D. Litzgus. 2014. Effects of body size, habitat selection, and exposure on hatchling turtle survival. Journal of Zoology 294(4): 278-285 (doi: 10.1111/jzo.12176).
Riley, J.L.* and J.D. Litzgus. 2014. Cues used by predators to detect freshwater turtle nests may persist late into incubation. Canadian Field-Naturalist 128(2): 179-188.
Riley, J.L.*, S. Freedberg, and J.D. Litzgus. 2014. Incubation temperature influences hatchling phenotype of two freshwater turtle species in the wild. Evolutionary Ecology Research 16: 397-416.
Riley, J.L.*, G.J. Tattersall, and J.D. Litzgus. 2014. Potential sources of intra-population variation in painted turtle (Chrysemys picta) hatchling overwintering strategy. Journal of Experimental Biology 217(23): 4174-4183. [journal cover photo by J.L. Riley]