In Asia the large, widespread active colubrid would be Ptyas. /np

Posted by Chris H. on January 27, 2002 at 09:59:58:

In Reply to: per Freds req....guardian evolution, distribution & more... posted by regalringneck on January 26, 2002 at 16:18:27:

: As background....forest guardian was explained to us a while back (cant remember who tho...) as the literal translation of drymarchon...Great name IMO!
: I am pondering that selection pressures & niche exploitation resulted in a colubrid (modern snake) giving up constriction (constriction is an ancient behavior; ex. boidae), presumably for speed/agility. The whipsnakes & the Coluber racers have taken a similar evolutionary path. Not many other top predator colubrids diverted with them from constriction, yet I believe many of these; Pituophis/L. getulus/Arizona/& Elaphe which we would expect to do well in the many habitats in the tropics...disappear...about where the super generalist drymarchons become a dominant species....
: Is there an eco-equivalent for Drymarchon in the Old World tropics?

: Are there indigos on Bermuda? or the Bahamas? I have heard Cuba has a very florida-like indigo...

: Cheers, john gunn

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: : As background....forest guardian was explained to us a while back (cant remember who tho...) as the literal translation of drymarchon...Great name IMO! : : I am pondering that selection pressures & niche exploitation resulted in a colubrid (modern snake) giving up constriction (constriction is an ancient behavior; ex. boidae), presumably for speed/agility. The whipsnakes & the Coluber racers have taken a similar evolutionary path. Not many other top predator colubrids diverted with them from constriction, yet I believe many of these; Pituophis/L. getulus/Arizona/& Elaphe which we would expect to do well in the many habitats in the tropics...disappear...about where the super generalist drymarchons become a dominant species.... : : Is there an eco-equivalent for Drymarchon in the Old World tropics? : : Are there indigos on Bermuda? or the Bahamas? I have heard Cuba has a very florida-like indigo... : : Cheers, john gunn

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