Température et plasticité du chromatisme de la coquille chez le mollusque pulmoné Helix aspersa

Autor:	Jacques Daguzan, Odile Lecompte, Luc Madec
Rok vydání:	1998
Předmět:	Phenotypic plasticity Ecology biology Helix (gastropod) Shell (structure) Environmental factor Land snail Anatomy biology.organism_classification medicine.disease_cause Pulmonata General Biochemistry Genetics and Molecular Biology Helicidae Botany Gastropoda medicine sense organs
Zdroj:	Comptes Rendus de l'Académie des Sciences - Series III - Sciences de la Vie. 321:649-654
ISSN:	0764-4469
DOI:	10.1016/s0764-4469(98)80004-8
Popis:	Phenotypic plasticity of shell pigmentation in the land snail Helix aspersa was investigated with the help of image processing followed by pixel counting for each colour present on the shell. Thus, the use of three different growth temperatures under artificial conditions showed, for the two subspecies considered, a continuous colour gradient from red to dark of the shell banding. Darker pigmentation characterized low temperatures while red bands were related to the higher temperature (25 °C). No interpretable difference appeared between the two forms.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::736bc2bb3958fdc1ef815b9973611836 https://doi.org/10.1016/s0764-4469(98)80004-8 Zobrazit plný text záznamu