Skip to Main content Skip to Navigation
Journal articles

Is cold hardiness size-constrained? A comparative approach in land snails

Abstract : Body water is a major element of the cold-hardiness strategies observed in ectothermic animals, in particular in freezing avoidant species for which body ice formation is lethal. Here, we investigate the relationships, in terrestrial snails, between the temperature of crystallisation (Tc) and body water (water mass and water content), shell shape, geographic and climatic distribution, taking into account phylogenetic inertia. Phylogenetic relationships among 31 species from 13 different families of terrestrial Gastropods were studied using 28S rRNA nuclear and COI mitochondrial sequence data, together with species-specific traits. Our results provide evidence for clear relationships between Tc and absolute / relative body water: smaller species with lower water content tended to be characterized by colder temperatures of crystallisation, although some exceptions were noticeable. Environmental conditions do not appear to affect Tc significantly, as well as shell shape which is however correlated with water content. This study confirmed that supercooling ability in land snails is size constrained, with consequences on cold-hardiness strategies.
Document type :
Journal articles
Complete list of metadatas

Cited literature [8 references]  Display  Hide  Download

https://hal-univ-rennes1.archives-ouvertes.fr/hal-00909016
Contributor : Armelle Ansart <>
Submitted on : Monday, November 25, 2013 - 4:18:03 PM
Last modification on : Monday, May 25, 2020 - 6:54:02 PM
Long-term archiving on: : Monday, March 3, 2014 - 3:51:00 PM

File

MS_Ansart_et_al.pdf
Files produced by the author(s)

Identifiers

Citation

Armelle Ansart, Annie Guiller, Olivier Moine, Marie-Claire Martin, Luc Madec. Is cold hardiness size-constrained? A comparative approach in land snails. Evolutionary Ecology, Springer Verlag, 2013, 28 (3), pp.471-493. ⟨10.1007/s10682-013-9680-9⟩. ⟨hal-00909016⟩

Share

Metrics

Record views

801

Files downloads

1041