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Bothrops jararaca mimic?
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by ptsmc on August 10, 2010
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Does anyone know the name of the jararaca mimic? Almost identical except a rear fanged colubrid. I saw it on a documentary once and I cant remember its name. The guy who found it pinned it believeing it to be a bothrops an started to talk about it then saw its pupils were round. Anyone have any idea on the species. No im not looking to get one, in the UK you need a licence for any dangerous animals. Its just one of those things that you think of and cant remember an its really annoying me now!!! Anyone help before my brain explodes
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RE: Bothrops jararaca mimic?
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by BGF on August 10, 2010
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That would have been one of the Waglerophis species most likely. If it is the show I am thinking of it was Mark O'Shea talking about it while it dug these huge rear fangs into the snake hook.
I dont think so many of the so-called mimics are actually mimics, rather evolutionary pressures have selected similar camoflauge patterns due to occupation of similar ecological niches.
The stupidest common name ever is 'false water cobra' for Hydrodynastes gigas, it cannot be a false anything that lives on another bloody continent!! The proper common name is Brasilian smooth snake.
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RE: Bothrops jararaca mimic?
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by ptsmc on August 10, 2010
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sorry to add but I remember the guy saying 'jararaca falsa' I just assumed it was him telling the brazilian guides that it wasnt a real jararaca? I searched for jararaca falsa an got nowhere. Brain still hurting...
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RE: Bothrops jararaca mimic?
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by ptsmc on August 10, 2010
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wow never thought of that, ive seen false waters but never thought it was that. Yeah it was mark o'shea and thanks soooooo much my head stopped hurting an now.
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RE: Bothrops jararaca mimic?
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by AquaHerp on August 10, 2010
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FWC- I have always called them "I only fed you a small rat, how the hell did you produce 12 pounds of crap"?
DH
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RE: Bothrops jararaca mimic?
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by ptsmc on August 10, 2010
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Thanks Bryan! Sorry misread what you put at first but got there in the end!!! Waglerophis merremi an its gorgeous. Thanks again, big fan of your work!
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RE: Bothrops jararaca mimic?
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by CAISSACA on August 19, 2010
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Waglerophis merremi is indeed the most likely candidate for a "false jararaca", although several other people of Xenodon also have extremely similar patterns (e.g., Xenodon rabdocephalus), as do some Dipsas.
Personally, I am convinced that this is real mimicry - the resemblance is very close and very specific, and present across a variety of habitats (rendering convergent crypsis for very specific habitat features unlikely as an explanation), yet the same pattern is not found in "colubrids" elsewhere, across a similar variety of habitats.
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RE: Bothrops jararaca mimic?
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by CAISSACA on August 19, 2010
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Various possibilities:
- Plasticine models in the wild, as done for Eurasian vipers and coral snakes
- Response of captive snake predators of various taxa to Bothrops patterns
- Phylogenetic and molecular dating analyses (clades of mimics should be younger than clades of models sharing putative mimicked trait) could provide additional evidence.
Testing the function of viper patterns, and in particular teasing apart various interacting factors, is always going to be more difficult than testing coral snake patterns, because viperid patterns are undoubtedly cryptic as well as characteristically recognisable as a warning. Whereas classical aposematism (as in wasps, coral snakes etc.) relies on a clear, unmistakeable signal that is easily reconstructed and tested, crypsis relies on the combination of a multitude of subtle clues, which is not. However, the characteristic trait involved in conferring mimic advantage (e.g., the lateral triangular marks of a Bothrops) should be recognisable and testable in model form.
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