Posted by:
Jon R
at Sun Feb 21 19:22:43 2010 [ Email Message ] [ Show All Posts by Jon R ]
Thanks for the link.
5 degrees is closer to what I have said than a constant temperature of say 82 degrees precisely controlled by a digital thermostat in an insulated incubator for the entire duration of the incubation. Plus, it seems that the day/night temps are quite a bit more consistent in Illinois than the desert areas I am used to. It looks like a good average is only 15 degrees from day to night. I bet a similar study in a more harsh environment would show a higher fluctuation.
I still believe N. American reptiles eggs are pretty tolerable to temperature fluctuations and most likely deal with it to some extent in the wild. I guess I'm going to have to plant a bunch of cheap radio shack high/low thermometers this summer.. 
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