http://www.woodlands.co.uk/blog/flora-and-fauna/local-adaptation-in-the-land-snail-cepaea-nemoralis/ A blog about woodland activities, outdoor skills and conservation Wed, 08 Feb 2012 15:04:02 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://www.woodlands.co.uk/blog/flora-and-fauna/local-adaptation-in-the-land-snail-cepaea-nemoralis/comment-page-1/#comment-2226 Prof Geoff Potts Fri, 27 Feb 2009 13:44:02 +0000 http://www.woodlands.co.uk/blog/conservation/local-adaptation-in-the-land-snail-cepaea-nemoralis/#comment-2226 Large numbers of broken shells of Cepaea nemoralis (several hundred) were found in sparse woodland at the base of young ash trees. These findings were in association with mammal scrapes and occasional vole runs which suggests that thrushes may not be the only predators taking them. While thrushes may select on the basis of colour morphs nocturnal mammals, if these are infact predating on the snails, will be selecting using other criteria. So far the literature is focused on avian predators. Large numbers of broken shells of Cepaea nemoralis (several hundred) were found in sparse woodland at the base of young ash trees. These findings were in association with mammal scrapes and occasional vole runs which suggests that thrushes may not be the only predators taking them. While thrushes may select on the basis of colour morphs nocturnal mammals, if these are infact predating on the snails, will be selecting using other criteria. So far the literature is focused on avian predators.

]]> http://www.woodlands.co.uk/blog/flora-and-fauna/local-adaptation-in-the-land-snail-cepaea-nemoralis/comment-page-1/#comment-1813 Chris Sat, 01 Nov 2008 00:42:41 +0000 http://www.woodlands.co.uk/blog/conservation/local-adaptation-in-the-land-snail-cepaea-nemoralis/#comment-1813 For another site with information on snails and natural selection http://www.evolutionmegalab.org/en/information/viewInstructions and on identifying snails - see http://www.evolutionmegalab.org/file_downloads/en/snail_guide.pdf For another site with information on snails and natural selection
http://www.evolutionmegalab.org/en/information/viewInstructions
and on identifying snails – see
http://www.evolutionmegalab.org/file_downloads/en/snail_guide.pdf

]]> http://www.woodlands.co.uk/blog/flora-and-fauna/local-adaptation-in-the-land-snail-cepaea-nemoralis/comment-page-1/#comment-910 Prof Max Blythe Sat, 24 Nov 2007 16:05:25 +0000 http://www.woodlands.co.uk/blog/conservation/local-adaptation-in-the-land-snail-cepaea-nemoralis/#comment-910 A valuable introduction to local adaptation of Cepaea nemoralis, the selection processes operating on morph frequencies, and the relevance of C. nemoralis as an indicator species - with appropriate referencing. Concisely and well presented. A valuable introduction to local adaptation of Cepaea nemoralis, the selection processes operating on morph frequencies, and the relevance of C. nemoralis as an indicator species – with appropriate referencing. Concisely and well presented.

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