> Date: Tue, 30 Jan 2001 21:01:17 -0500
> From: Cyndy L Linsteadt <[EMAIL PROTECTED]>
>
> Is any body willing to let me use their leopard gecko incubation records?
> I am doing a paper on temperature determined gender. I need records to
> prove the thesis. I would of course give credit to the person who's
> records I use. This is not for publication, it is just for a college
> graduation requirement.
> If you would like you can e-mail me off list.
Cyndy, a suggestion: There is published research based on controlled
experiments using thousands of leopard geckos, but there is very little
on other species. If you could acquire and summarize info on incubation
for other species it would be of considerable value to many people, as
well as being "new" research. To enrich your paper, you could include
climate data for the areas of origin of the geckos, which you can obtain
from www.worldclimate.com. You might want to contact some of the larger
breeders who aren't on the list, such as Tim Tytle, for either large-scale
records, or to find out what incubation conditions they use as standard,
and what their experience with sex ratios is.
There seems to be a lot to learn about TSD vs GSD in geckos. For example,
Phillippe de Vosjoli stated in Vivarium magazine that Rhacodactylus
ciliatus has GSD, but when I asked on the list, several people stated
that in their experience, these geckos have TSD.
It would also be interesting to compare Goniurosaurus to other eublepharine
geckos. Leos and fat-tails definitely have TSD, but most people claim that
Coleonyx spp (American banded geckos) have GSD. How about Goniurosaurus
spp.? Or for that matter, Aeluroscalabotes, which is supposed to be the
most closely related to the ancestral line of eublepharines, and therefore
perhaps, to the Original Primordial Gecko. Is TSD or GSD the ancestral
condition in geckos? (Or, just to head out into the ozone, pygopods? :-))
Btw, from the little I know, TSD seems to be the norm in geckos. Does
anyone have data for any gecko that really confirms GSD in that species?
After that Rhac thing, I wonder about Coleonyx. Maybe people are just
mostly incubating them at a temp that gives a 1:1 ratio, or attributing
skewed ratios to small sample size, since the books all say these geckos
have GSD?
Just running on with ideas, again, instead of doing what they pay me to do...
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