Life history traits variation in heterogeneous environment : the case of a freshwater snail resistance to pond drying - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Ecology and Evolution Année : 2012

Life history traits variation in heterogeneous environment : the case of a freshwater snail resistance to pond drying

Résumé

Ecologists and population geneticists have long suspected that the diversity of living organisms was connected to the structure of their environment. In heterogeneous environments, diversifying selection combined to restricted gene flow may indeed lead to locally adapted populations. The freshwater snail, Galba truncatula , is a good model to address this question because it is present in a heterogeneous environment composed of temporary and permanent waters. In order to test the selective importance of those environments, we proposed here to measure survival of lineages from both habitats during drought episodes. To this purpose, we experimentally submitted adults and juveniles individuals from both habitats to drought. We found a difference in desiccation resistance between temporary and permanents waters only for adults. Adults from temporary habitats were found more resistant to drought. This divergence in desiccation resistance seems to explain the unexpected life history traits differences between habitats observed.
Fichier principal
Vignette du fichier
Chapuis et Ferdy - 2012 - Life history traits variation in heterogeneous env.pdf (676.75 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-04482826 , version 1 (28-02-2024)

Identifiants

Citer

Elodie Chapuis, Jean‐baptiste Ferdy. Life history traits variation in heterogeneous environment : the case of a freshwater snail resistance to pond drying. Ecology and Evolution, 2012, 2 (1), pp.218-226. ⟨10.1002/ece3.68⟩. ⟨hal-04482826⟩
19 Consultations
3 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More