CHS Blog

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Traversing the eastern Georgian Bay rock barrens in search of nesting turtles: Does temperature and moisture have an affect on hatch success?

September 25, 2022
Hope Freeman, MSc candidate, McMaster Ecohydrology Lab, School of Earth, Environment and Society, McMaster University

My first experience working with turtles was the summer of 2017, where I volunteered for Grundy Lake Provincial Park’s turtle monitoring program. I was immediately fascinated by how turtles were able to venture on land and choose a nest site amidst the busyness of a fully operating campground. After being fortunate enough to watching a turtle I was hooked. I knew turtle work was for me! That fall, I approached Dr. Chantel Markle about volunteer … Read More



Winners of the worst turtle nest location of the year award

July 11, 2022
David Seburn, Canadian Wildlife Federation & chair of the CHS conservation committee



There once was a turtle looking to nest
Who couldn’t find a place that was best
The road shoulder was a trapRead More



Riding waves with Canada’s most endangered amphibian

March 01, 2022
Briar Hunter, MSc Candidate, co-supervision by David Lesbarrè res, Laurentian University, and Gabriela Mastromonaco, Toronto Zoo


While most of us have seen our social lives struggle over these past two years, not all species were following social distancing rules. One species, in particular, has made significant leaps and bounds in their relational lives— the Oregon Spotted Frog
Read More



Biologists make us all richer

February 01, 2022
Interview with Guillaume DeBlois who co-wrote a book on Canadian freshwater turtles

Professionals who take care of biodiversity leave a priceless legacy for future generations. A young Canadian, Guillaume DeBlois, understood this and wanted to support them in their work by making it his mission to help save freshwater turtles. A member of the Canadian Herpetological Society's Board of Directors invited his mother to ask him a few questions to find out the story behind his journey. Here is the result of that exchange… Read More



Investigating the Enduring Mystery of Temperature-dependent Sex Determination

May 01, 2021
Jessica Leivesley, PhD candidate, Njal Rollinson Lab, University of Toronto

In my opinion, temperature-dependent sex determination (TSD) is one of the weirdest but most interesting things about reptiles. In animals, sex determination is typically thought of in terms of sex chromosomes. For example, in species with an XY sex-chromosome system (such as humans), embryos possessing two X chromosomes will be genetically female, while those with both an X and a Y chromosome will be … Read More



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