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GROVE SNAIL


GROVE SNAIL
Photo Information
Copyright: Mark Bryan (MAB) (33)
Genre: Animals
Medium: Color
Date Taken: 2006-07-06
Categories: Insects
Camera: PENTAX OPTIO 30S
Exposure: f/3.5, 1/125 seconds
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2006-08-05 18:08
Viewed: 4790
Points: 4
[Note Guidelines] Photographer's Note
The grove snail or brown-lipped snail (Cepaea nemoralis) is one of the most common species of land snail in Europe. It is a relatively small snail, growing to a height of about 20 mm and a width of 25 mm. Their semi-glossy shell has from 4 to 5 whorls.
C. nemoralis is closely related to the white-lipped snail, Cepaea hortensis, and shares much the same habitat. The grove snail is usually the larger of the two species when mature, but the principal difference is that the grove snail has a dark brown lip to its shell, whilst Cepaea hortensis has a white lip. However, this distinguishing feature is not entirely reliable as there is at least one morph of the grove snail which also has a white lip.
Colouration
Apart from the band at the lip of the shell, grove snails are highly polymorphic in their shell colour and banding. They range from almost white, through yellow and pink to dark brown, with a range of light and dark bandings. The bandings vary both in colour and number (but never more than five bands). These polymorphisms have been highly studied as part research in heredity and evolution. They are thought to act as camouflage to avoid predation from, for example, the Song Thrush, but also have implications for the body heat of the animal: darker shells heat up more quickly, with consequences for rates of metabolism and loss of moisture (crucial in snail locomotion). In particular, grove snails with dark brown appear to preferentially be found in dark woodlands, whilst snails with light yellow shells and thin banding are more commonly found in grassland
Habitat
The grove snail can be found in a range of habitats in northern Europe, most commonly, grassland, hedgerows and woodland. The white-lipped snail has a similar range, but extends further north to border the Arctic.
More recently, the grove snail has been introduced into North America.
From Wikipedia, the free encyclopedia

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Critiques [Translate]

  • Great 
  • arfer Gold Star Critiquer [C: 2731 W: 0 N: 0] (0)
  • [2006-08-05 21:22]

Hi Mark

Nice shot,really good detail and colour.Nicely composed,with useful notes.TFS

Rob

  • Great 
  • Dando Gold Star Critiquer/Silver Workshop Editor [C: 637 W: 32 N: 792] (3084)
  • [2006-08-06 15:34]

Hi Mark, nice composition with good colours and details. Snails are always difficult shots as we either seem to get the shell infocus and not the head or visa versa. Focus is a tad soft but i think you have done well considering you are using a compact and have no control over the DOF or shutter speed. Well done and TFS.
Dean.

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