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Hybrid Palmate/Smooth |
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Jeroen
Senior Member Joined: 03 Nov 2004 Location: Belgium Status: Offline Points: 131 |
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BTW, the Griffiths specimen does look more like the Belgian hybrid, imho.
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Caleb
Senior Member Joined: 11 Apr 2011 Status: Offline Points: 660 |
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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
Member Joined: 25 May 2011 Location: Kent Status: Offline Points: 48 |
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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..
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. |
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Brett Lewis Consultant Ecologist | Wildlife Photographer | DICE, University of Kent | Kent Reptile & Amphibian Group |
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Caleb
Senior Member Joined: 11 Apr 2011 Status: Offline Points: 660 |
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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
Senior Member Joined: 11 Apr 2011 Status: Offline Points: 660 |
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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
Senior Member Joined: 11 Apr 2011 Status: Offline Points: 660 |
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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
Member Joined: 31 Oct 2003 Location: United Kingdom Status: Offline Points: 14 |
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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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