IButton temperature loggers were epoxied to 10 turtles, 1 to 2 weeks prior to hibernation, and soil and air temperature data loggers were put in place at each hibernation site after the sites were selected by turtles.  Temperatures were recorded every 4 hours at 00:00, 04:00, 08:00, 12:00, 16:00, and 20:00 daily.
2010 Hibernation site locations.

Most sites, sheltered or not, were closely associated with pines or pine stands.  The soil under pines is soft and airy, and easier to work into, compared to the gravelly thin soils elsewhere.  The pine soils are composed of layers of horizontal root mats that the turtle can work between without digging.

In this study area, the turtles often prefer to burrow into the soil rather than hibernate under piles of leaves or in stump holes.  The autumn leaf fall insolates the hibernacula by covering the forest floor and burrow entrance.

No turtle here has been obverved to be at all active during the winter once their hibernacula is entered in the fall.  Hibernacula are located by thread or radio or both and monitored regularly until emergence in the spring.




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Hibernation soil, air, and iButton temperature data and charts in Excel format for 12 sites available here
2010 Summer Season and Hibernation
Page 8
Terrapene carolina carolina
A Relict Population Doomed To Extinction?
Under Construction
Green Dot = Emergence,  Red Dot = Hibernation, Blue Dot = NEW FIND, White Dot = Dead
M1(female)  This was the third full season tracking M1.
M3(male) This was the second full season tracking turtle M3(M).
2018 Summer
2018 Hibernation
2019 Summer
2019 Hibernation
2020 Summer
2020 Hibernation
2021 Summer
2021 Hibernation
2022 Summer
Meeting and Mating
Turtle Catalog
M17 Superturtle
Land Use History
Odds and Ends
The Bottom Line
Thread Trailing