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Posted by Fred Albury on April 04, 2002 at 20:46:10:
In Reply to: Barometric pressure posted by Dr. Phil on April 04, 2002 at 16:58:45:
: Surely you don't depend on rainstorms or other climatic events where the barometric pressure drops to elicit some kind of mating behavior in your indigo males do you? You must have matings at other times right? All my boys ever needed was a recently shed female, and most of the time that meant not-so-recently.
: So do you consider that to be an essential element of your own success? They might get more horned up during rainstorms(hey, a long car ride does the same thing for many snake species after all!), but it sure doesn't seem to make much of a difference overall, no?
: Dr.Phil
Phil,
Ahh you doubt me, which is a shame since I allready stated what I depend on as signal to the onset of breeding in couperi.
I will say it again, as plainly as I can.
I BELEIVE that a change in barometric pressure signals the "onset" of the breeding season for these snakes. This occurs dureing stormy weather, and in California can occur between Oct throughout Decemeber. Our raintables and precipatation vary. It is at THIS time that I introduce my Eastern Indigo males to the females.
Do I feel that they would breed without this stimulus? perhaps, but it is the signal to ME that it is time to introduce them. Given a certain time of the year, Easterns WILL breed irregardless, but what HERALDS that time of the year is a change in barometric pressure. The same as when one goes road collecting in the desert, you can go up ANY time dureing the spring, scour the desert and find NOTHING. But if you wait until the pressure changes, than your odds of finding reptiles both on the road and in the rocks increses exponetially.
Again, the change in barometric pressure is a Signal that the season for breeding has arrived.
Fred
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