Ecological Interactions between Cepaea nemoralis and Cepaea hortensis: Competition, Invasion but no Niche Displacement

1987 ◽  
Vol 1 (2) ◽  
pp. 91 ◽  
Author(s):  
R. H. Cowie ◽  
J. S. Jones
Keyword(s):  
Ecological Interactions ◽  
Cepaea Nemoralis ◽  
Niche Displacement ◽  
Cepaea Hortensis

scholarly journals Large scale patterns of genetic differentiation at enzyme loci in the land snails Cepaea nemoralis and Cepaea hortensis

Heredity ◽  
1987 ◽  
Vol 58 (1) ◽  
pp. 127-138 ◽  
Author(s):  
H Ochman ◽  
J S Jones ◽  
R K Selander
Keyword(s):  
Genetic Differentiation ◽  
Large Scale ◽  
Land Snails ◽  
Cepaea Nemoralis ◽  
Enzyme Loci ◽  
Cepaea Hortensis

scholarly journals A comparative analysis of the camera eyes of gastropod pulmonate mollusks Cepaea nemoralis (Linnaeus, 1758) and Cepaea hortensis (Müller, 1774) (Stylommatophora, Helicidae)

2018 ◽  
Vol 28 (3) ◽  
pp. 113-118
Author(s):  
I. P. Shepeleva
Keyword(s):  
Optical Properties ◽  
Comparative Analysis ◽  
Published Data ◽  
Cepaea Nemoralis ◽  
Main Components ◽  
Anatomical Parameters ◽  
Cepaea Hortensis

A comparative analysis of the camera eyes of gastropod pulmonate molluscs Cepaea nemoralis and Cepaea hortensis was carried out on the basis of original and published data. It was demonstrated that the eyeballs and their main components in C. nemoralis and C. hortensis have more similarities in morphological and optical properties than in anatomical parameters.

scholarly journals Selection in mixed colonies of Cepaea nemoralis and Cepaea hortensis

Heredity ◽  
1967 ◽  
Vol 22 (1) ◽  
pp. 117-139 ◽  
Author(s):  
M A Carter
Keyword(s):  
Cepaea Nemoralis ◽  
Cepaea Hortensis

Studies on Cepaea I. The genetics of some morphs and varieties of Cepaea nemoralis (L.)

1968 ◽  
Vol 253 (789) ◽  
pp. 383-396 ◽  
Keyword(s):  
Similar Form ◽  
Strong Linkage ◽  
Cepaea Nemoralis ◽  
Pale Yellow ◽  
Opaque Material ◽  
Pale Pink ◽  
Cepaea Hortensis

The following segregants of shell colour are described: pale brown, faint brown, faint pink, yellow-white. Faint pink is dominant to dark and pale yellow and recessive to pale pink. Murray’s finding that the hyalozonate gene when homozygous pales shell colour as well as removing the lip and banding pigment is confirmed; faint pink or yellow-white shells homozygous for hyalozonate may be genetically faint pink or pale pink. Deep pink hyalozonates exist and transmit their phenotype to their offspring; in these the paling effect is not noticeable. Shells with no bands but a strip of fascialbate opaque material in the position for bordering the middle band are genetically mid-banded. The condition is due to a multifactorial suppression of the pigmented band. Spread-banded is described in the five-banded form as well as the m id-banded; the strong linkage between it and shell colour previously suggested is confirmed, but crossovers are recorded. White lip (with normally pigmented bands) is recessive to normal lip, linked to the locus for shell-colour, and allelic to hyalozonate. The normal lip/white lip heterozygote appears to be palelipped, but the degree of pallor is modified by the presence of yellow or pink shell colour. White lip, when homozygous, may reduce the intensity of shell colour in some cases, as does hyalozonate. Hyalozonate is shown to be linked to the banding locus, which itself is strongly linked to that for shell colour. Orange-banded is complementary to hyalozonate, not allelic to it as is the very similar form lurida described by Murray in Cepaea hortensis . A form of the var. punctata producing only traces of bands and occasionally a definite punctate band is described, which is linked to the shell colour locus and dominant to normal bands. This and the form figured by Lang and by Taylor with well-developed punctate bands (the segregation of which from normal bands is confirmed) may well be alleles. A segregation of medium grey to very pale body is described, with medium grey dominant to pale. It appears to be unlinked to shell colour, banding and mid-banded.

scholarly journals THE INHERITANCE OF SOME CHARACTERS IN CEPAEA HORTENSIS AND CEPAEA NEMORALIS (GASTROPODA)

Genetics ◽  
1963 ◽  
Vol 48 (4) ◽  
pp. 605-615
Author(s):  
James Murray
Keyword(s):  
Cepaea Nemoralis ◽  
Cepaea Hortensis

Food overlap in co-existing populations of the land snails Cepaea nemoralis (L.) and Cepaea hortensis (Müll)

1979 ◽  
Vol 11 (2) ◽  
pp. 169-176 ◽  
Author(s):  
M. A. CARTER ◽  
R. C. V. JEFFERY ◽  
P. WILLIAMSON
Keyword(s):  
Land Snails ◽  
Cepaea Nemoralis ◽  
Food Overlap ◽  
Cepaea Hortensis

scholarly journals Découverte d’un couple de l’escargot de Bourgogne au Québec et quelques remarques sur nos escargots Hélicidés (Mollusques)

2012 ◽  
Vol 137 (1) ◽  
pp. 39-44 ◽  
Author(s):  
Jean Denis Brisson ◽  
Rachèle Roy ◽  
Benoit-Olivier Ouellet ◽  
Philippe Nadeau
Keyword(s):  
Helix Pomatia ◽  
Cepaea Nemoralis ◽  
Cepaea Hortensis

Les Hélicidés du Québec ne comprennent officiellement que l’escargot des jardins ou l’escargot des Vikings (Cepaea hortensis), une espèce amphi-atlantique, ainsi que l’escargot des bois (Cepaea nemoralis). Une troisième espèce s’y ajoute, l’escargot de Bourgogne (Helix pomatia), et elle fait partie des espèces dont l’Agence canadienne d’inspection des aliments ne permet pas l’importation vivantes. En 2007, la découverte de 2 individus et, 5 années plus tard, la recapture vraisemblable du premier spécimen qui avait été relâché démontrent que l’escargot de Bourgogne est capable de passer l’hiver à Québec. Nous présentons un aperçu de la famille des Hélicidés pour le Québec avec l’historique des premières mentions et décrivons les conditions de la découverte de ces 2 spécimens.

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