scholarly journals Boldness and exploration vary between shell morphs but not environmental contexts in the snail Cepaea nemoralis

Ethology ◽  
2021 ◽  
Author(s):  
Maxime Dahirel ◽  
Valentin Gaudu ◽  
Armelle Ansart
Keyword(s):  
Cepaea Nemoralis

scholarly journals The draft genome sequence of the grove snail Cepaea nemoralis

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Suzanne V Saenko ◽  
Dick S J Groenenberg ◽  
Angus Davison ◽  
Menno Schilthuizen
Keyword(s):  
Genome Sequence ◽  
Draft Genome ◽  
Agricultural Pests ◽  
Shell Color ◽  
Protein Coding ◽  
Cepaea Nemoralis ◽  
Edible Species ◽  
Wide Range ◽  
In Captivity ◽  
Long Read

Abstract Studies on the shell color and banding polymorphism of the grove snail Cepaea nemoralis and the sister taxon Cepaea hortensis have provided compelling evidence for the fundamental role of natural selection in promoting and maintaining intraspecific variation. More recently, Cepaea has been the focus of citizen science projects on shell color evolution in relation to climate change and urbanization. C. nemoralis is particularly useful for studies on the genetics of shell polymorphism and the evolution of “supergenes,” as well as evo-devo studies of shell biomineralization, because it is relatively easily maintained in captivity. However, an absence of genomic resources for C. nemoralis has generally hindered detailed genetic and molecular investigations. We therefore generated ∼23× coverage long-read data for the ∼3.5 Gb genome, and produced a draft assembly composed of 28,537 contigs with the N50 length of 333 kb. Genome completeness, estimated by BUSCO using the metazoa dataset, was 91%. Repetitive regions cover over 77% of the genome. A total of 43,519 protein-coding genes were predicted in the assembled genome, and 97.3% of these were functionally annotated from either sequence homology or protein signature searches. This first assembled and annotated genome sequence for a helicoid snail, a large group that includes edible species, agricultural pests, and parasite hosts, will be a core resource for identifying the loci that determine the shell polymorphism, as well as in a wide range of analyses in evolutionary and developmental biology, and snail biology in general.

Variation in a Colony of the Snail Cepaea nemoralis (L.)

10.2307/2137 ◽  
1962 ◽  
Vol 31 (2) ◽  
pp. 207 ◽  
Author(s):  
C. B. Goodhart
Keyword(s):  
Cepaea Nemoralis

Genetic variation in two land snails, Cepaea nemoralis and Succinea putris (Gastropoda, Pulmonata), from sites differing in heavy metal content

Genetica ◽  
2006 ◽  
Vol 128 (1-3) ◽  
pp. 227-239 ◽  
Author(s):  
Kurt Jordaens ◽  
Hans De Wolf ◽  
Natalie Van Houtte ◽  
Bart Vandecasteele ◽  
Thierry Backeljau
Keyword(s):  
Heavy Metal ◽  
Genetic Variation ◽  
Metal Content ◽  
Land Snails ◽  
Heavy Metal Content ◽  
Cepaea Nemoralis

scholarly journals At a snail’s pace: the influence of habitat disturbance on terrestrial snail movement using experimentally manipulated mesocosms

2021 ◽  
Author(s):  
Emily E. Denief ◽  
Julie W. Turner ◽  
Christina M. Prokopenko ◽  
Alec L. Robitaille ◽  
Eric Vander Wal
Keyword(s):  
Experimental Approach ◽  
Movement Ecology ◽  
Behavioural Response ◽  
Habitat Alteration ◽  
Movement Behaviour ◽  
Physical Disturbance ◽  
Behavioural Responses ◽  
Cepaea Nemoralis ◽  
Experimental Mesocosms ◽  
Step Selection

AbstractThe Anthropocene marks great changes to environments and the animals that inhabit them. Changes, such as disturbance, can affect the manner in which animals interact with their environments, such as moving and selecting habitats. To test how animals might respond to changing disturbance regimes, we employ an experimental approach to movement ecology. We used integrated step selection analysis (iSSA) to test the behavioural responses of individually-marked grove snails (Cepaea nemoralis) exposed to a gradient of physical disturbance in their habitat. We used a before-after control-impact (BACI) experimental design within semi-controlled mesocosms to manipulate edge and disturbance variables by altering the area of the mesocosm covered by bricks. We showed that grove snails perceive edges of enclosures and edges of bricks as risks, and responded to such risks by altering their movement. Grove snails displayed a bimodal response to risk by taking shelter in place or moving faster to be farther from the disturbance. Furthermore, individuals tended to modulate their behavioural response to the degree of risk. Our study highlights the usefulness of experimental mesocosms in movement ecology and in determining the effects of habitat alteration and human-imposed risk on movement behaviour.

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