Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

The GR3D model, a tool to explore the Global Repositioning Dynamicsof Diadromous fish Distribution

Abstract : Within the context of ongoing environmental changes, the life history of diadromous fish represents areal potential for exploring and colonizing new environments due to high potential dispersal abilities. Theuse of dynamic approaches to assess how these species will respond to climate change is a challenging issue and mechanistic models able to incorporate biological and evolutionary processes are a promising tool. To this end we developed an individual-based model, called GR3D (Global Repositioning Dynamicsfor Diadromous fish Distribution), combining climatic requirements and population dynamics with an explicit dispersal process to evaluate potential evolution of their distribution area in the context of climatic change. This paper describes thoroughly the model structure and presents an exploratory test casewhere the repositioning of a virtual allis shad (Alosa alosa L.) population between two river catchments under a scenario of temperature increase was assessed. The global sensitivity analysis showed that land-scape structure and parameters related to sea lifespan and to survival at sea were crucial to determine the success of colonization. These results were consistent with the ecology of this species. The integration of climatic factors directly into the processes and the explicit dispersal process make GR3D an original and relevant tool to assess the repositioning dynamics and persistence of diadromous fish facing climate change.
Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [128 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-01118691
Déposant : Import Ws Irstea <>
Soumis le : jeudi 19 février 2015 - 16:06:23
Dernière modification le : lundi 6 juillet 2020 - 09:32:02
Document(s) archivé(s) le : mercredi 20 mai 2015 - 11:00:47

Fichier

bx2014-pub00041011.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

T. Rougier, H. Drouineau, N. Dumoulin, T. Faure, G. Deffuant, et al.. The GR3D model, a tool to explore the Global Repositioning Dynamicsof Diadromous fish Distribution. Ecological Modelling, Elsevier, 2014, 283, pp.31-44. ⟨10.1016/j.ecolmodel.2014.03.019⟩. ⟨hal-01118691⟩

Partager

Métriques

Consultations de la notice

654

Téléchargements de fichiers

288