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Hybrid Palmate/Smooth

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Jeroen View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jeroen Quote  Post ReplyReply Direct Link To This Post Posted: 16 Nov 2012 at 11:34am
BTW, the Griffiths specimen does look more like the Belgian hybrid, imho.
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Caleb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Caleb Quote  Post ReplyReply Direct Link To This Post Posted: 19 Nov 2012 at 12:08pm
For anyone who's not seen it, here's a picture of Griffiths' specimen:


I agree, it does look more like the Belgian one. Though this one has the double row of black spots along the centre of the tail which is typical in palmates.

While we're at it, this is the one that Arntzen et al caught in France:



Edited by Caleb - 19 Nov 2012 at 12:08pm
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B Lewis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote B Lewis Quote  Post ReplyReply Direct Link To This Post Posted: 22 Nov 2012 at 11:48am
Did you read about the genetic work-up that was done on the Griffiths example..? Is truly a hybrid from the Welsh specimens and no aliens were involved.. LOL

Keep the examples coming folks and the more we have and the more evidence we can gather the stronger to the paper or journal note we can make about this. I'm thinking about a short article for Spring next year, so plenty of time for more examples and info. 

Kind regards for all the efforts so far, most interesting discussions. 

________________________________
Brett Lewis
Consultant Ecologist | Wildlife Photographer | DICE, University of Kent | Kent Reptile & Amphibian Group
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Caleb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Caleb Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2014 at 10:35am
A couple of apparent hybrid males turned up near Darlington last week. Both had typical smooth newt bellies, but also strong dorsolateral ridges, and (short) tail filaments:


(photo by Nicky Butler)


(photo by Deborah Jefferson)


(photo by Deborah Jefferson)
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Caleb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Caleb Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2014 at 10:38am
This one had smooth-like features:
   spotted belly and throat
   spotted sides
   wavy crest  (though very low)
and palmate-like features:
   dorsolateral ridges
   wiggly lines on top of head
   tail filament
   foot webbing
   double row of spots on tail


(photo by Nicky Butler)


(photo by Nicky Butler)


(photo by Nicky Butler)


Edited by Caleb - 30 May 2014 at 10:39am
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Caleb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Caleb Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2014 at 10:42am
And the second one had smooth-like features:
   spotted belly and throat
   spotted sides (though very faint)
   crest present on body as well as tail (though very low)
and palmate-like features:
   dorsolateral ridges
   wiggly lines on top of head
   tail filament
   red line along centre of sides of tail


(photo by Nicky Butler)


(photo by Deborah Jefferson)


(photo by Deborah Jefferson)


(photo by Deborah Jefferson)


Edited by Caleb - 30 May 2014 at 10:43am
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Rob_H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rob_H Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2014 at 3:40pm
These hybridisation events seem to be becoming more common with habitat disturbance. Murky, chemically polluted water seems to be breaking down the discrimination abilities of the two species... basically, they can't see or smell the difference between each other any more!
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