Fredric Janzen

Turtle Camp is a long-term, annual study of temperature controlled sex determination in painted turtles and other reptiles. The field site is in Thomson, Illinois, and the project grew over decades to include a research team of graduate, ... Read More

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List of publications Submitted Crowther, C., L. A. Hoekstra, F. J. Janzen, and L. E. Schwanz. Re-submitted 5/25. Adaptive plasticity in environmental sex determination under a variable climate.   2025 Clark, M. ... Read More

Fredric Janzen Principal Investigator Email | Lab home page Morgan Clark Email   Dr. Claudia Crowther Email   Dr. Chia ... Read More

Ecological and Evolutionary Herpetology People | Projects | Publications & Software | Turtle Camp We are a research facility centered at the W.K. Kellogg Biological Station, in Southwest Michigan. Research Our research ... Read More