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Variations in venom toxicity in same species
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by pygmybait on November 5, 2003
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I recently added an adult male Canebrake from Columbia County, Florida to my collection. I was informed yesterday that these Canebrakes are the most venomous rattlesnakes in the WORLD.(?????)
Does anyone have any opinions on this or perhaps and idea where I can look to learn more about this topic in general, not just my snakes specifically?
Thanks - Matt
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RE: Variations in venom toxicity in same species
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by Wollers on November 5, 2003
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There can be variations in toxicity from population to population, however, I have not read anything on venom toxicity of Canebrakes specific to Columbia Co. Florida. Coincidentally, I caught my sole captive Canebrake in Columbia Co., way pink, way beautiful. I have never noticed any faster kill time on prey then my other Crotalus. I have read that, in general the Canebrakes found in S.Georgia, N.Florida, and parts of S.C. do seem to have more neurotoxic properties. -Mike
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RE: Variations in venom toxicity in same species
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by pygmybait on November 5, 2003
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That's pretty much what I thought. According to the person who metioned this, the Columbia County Canes have more neurotoxic properties than any other locales that have been documented. Either way, it's very interesting. Thanks for the reply -Matt
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RE: Variations in venom toxicity in same species
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by Snakeman1982 on November 6, 2003
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Variations in venom toxicity of the same species is not uncommon in snakes. There are many species that this occurs with and horridus is no exception.
However, where did your source find his information about that particular canebrake population being the most venomous at? Just curious because it doesn't appear to be accurate.
Robert
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RE: Variations in venom toxicity in same species
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by pygmybait on November 6, 2003
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According to the gentleman I spoke to, he gathered a bunch of snakes from Columbia County and surrounding counties and provided them to the University of Florida for a venom study they were conducting at the time.
I have no idea if his claims are true or not, I just thought it would be a good topic for discussion.
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RE: Variations in venom toxicity in same species
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by BGF on November 7, 2003
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I'm not aware of regional variations of C. horridus (its all one species now by the way) that show relative toxicity. However, no doubt there is considerable variation (but I would be quite suprised if they ended up being more toxic than the tiger rattesnake which is the current most toxic rattlesnake).
We have looked at venom variations quite extensively in the death adders. Go to the publications section of my webpage and there papers are in there. http://www.venomdoc.com
Cheers
B
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RE: Variations in venom toxicity in same species
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by pygmybait on November 7, 2003
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Hello Bryan,
Thanks for the information. I've been trying to fnd as much as I can about this topic since I was told about the Columbia County Canes. I'm begining to wonder if the man who told me about this actually meant that the Columbia County Canes are the most venomous Canes, and not the most venomous of all rattlesnakes. Do you guys think this could be the case? Either way, it's very interesting to me. Thanks again for all of your input! Bryan, keep up the good work. I'll be donating to your research very soon.
Matt
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RE: Variations in venom toxicity in same species
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by vipera007 on November 10, 2003
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yes the venom toxicity defers on various aspects its the size of the animal the age of the animal also the habitat it is found in.for example a young russels viper larger in size would be more toxic than a russels viper smaller in size similarly an adult which is smaller in size would have more toxic venom than an adult which is larger in size.
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RE: Variations in venom toxicity in same species
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by thirdangel on November 11, 2003
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Years ago, a person by the name of Jim Glen (he was in Salt Lake City and worked with Bill Haast and did lots of venom research) had told me that the venom properties of the Canebrakes from North Florida were compatible to those of C. d. durissus.
Not too long hence (This being around 1985), a man was bitten by a 30" canebrake and was declared clinically dead within 20 minutes.
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