Fredric Janzen
Fredric Janzen
Director, Kellogg Biological Station, Michigan State University
Verified email at
Cited by
Cited by
Climate change and temperature-dependent sex determination in reptiles.
FJ Janzen
Proceedings of the National Academy of Sciences 91 (16), 7487-7490, 1994
Visualizing and quantifying natural selection
ED Brodie, AJ Moore, FJ Janzen
Trends in Ecology & Evolution 10 (8), 313-318, 1995
Environmental sex determination in reptiles: ecology, evolution, and experimental design
FJ Janzen, GL Paukstis
The Quarterly review of biology 66 (2), 149-179, 1991
Logistic regression for empirical studies of multivariate selection
FJ Janzen, HS Stern
Evolution 52 (6), 1564-1571, 1998
Putting eggs in one basket: ecological and evolutionary hypotheses for variation in oviposition-site choice
JM Refsnider, FJ Janzen
Annual Review of Ecology, Evolution, and Systematics 41, 39-57, 2010
Adaptive responses of animals to climate change are most likely insufficient
V Radchuk, T Reed, C Teplitsky, M van de Pol, A Charmantier, C Hassall, ...
Nature communications 10 (1), 3109, 2019
The western painted turtle genome, a model for the evolution of extreme physiological adaptations in a slowly evolving lineage
H Bradley Shaffer, P Minx, DE Warren, AM Shedlock, RC Thomson, ...
Genome biology 14, 1-23, 2013
An experimental analysis of natural selection on body size of hatchling turtles
FJ Janzen
Ecology 74 (2), 332-341, 1993
Impact of nest‐site selection on nest success and nest temperature in natural and disturbed habitats
JJ Kolbe, FJ Janzen
Ecology 83 (1), 269-281, 2002
Vegetational cover predicts the sex ratio of hatchling turtles in natural nests
FJ Janzen
Ecology 75 (6), 1593-1599, 1994
Exploring the evolution of environmental sex determination, especially in reptiles
FJ Janzen, PC Phillips
Journal of evolutionary biology 19 (6), 1775-1784, 2006
Experimental analysis of an early life‐history stage: selection on size of hatchling turtles
FJ Janzen, JK Tucker, GL Paukstis
Ecology 81 (8), 2290-2304, 2000
Temperature-dependent sex determination and contemporary climate change
NJ Mitchell, FJ Janzen
Sexual Development 4 (1-2), 129-140, 2010
Genetic Effects of a Persistent Bottleneck on a Natural Population of Ornate Box Turtles (Terrapene ornata)
CH Kuo, FJ Janzen
Conservation Genetics 5, 425-437, 2004
Pattern does not equal process: exactly when is sex environmentally determined?
N Valenzuela, DC Adams, FJ Janzen
The American Naturalist 161 (4), 676-683, 2003
Molecular phylogenetics and evolution of turtles
JG Krenz, GJP Naylor, HB Shaffer, FJ Janzen
Molecular phylogenetics and Evolution 37 (1), 178-191, 2005
Molecular systematics, phylogeography, and the effects of Pleistocene glaciation in the painted turtle (Chrysemys picta) complex
DE Starkey, HB Shaffer, RL Burke, MRJ Forstner, JB Iverson, FJ Janzen, ...
Evolution 57 (1), 119-128, 2003
Thermal and fitness‐related consequences of nest location in Painted Turtles (Chrysemys picta)
DW Weisrock, FJ Janzen
Functional Ecology 13 (1), 94-101, 1999
Repeatability of microenvironment-specific nesting behaviour in a turtle with environmental sex determination
FJ Janzen, CL Morjan
Animal Behaviour 62 (1), 73-82, 2001
Multiple paternity, sperm storage, and reproductive success of female and male painted turtles (Chrysemys picta) in nature
DE Pearse, FJ Janzen, JC Avise
Behavioral Ecology and Sociobiology 51 (2), 164-171, 2002
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