Fiche publication
Date publication
mars 2019
Journal
Ecology letters
Auteurs
Membres identifiés du Cancéropôle Est :
Dr CHAMPAGNAT Nicolas
Tous les auteurs :
Andrade-Restrepo M, Champagnat N, Ferrière R
Lien Pubmed
Résumé
Local adaptation and dispersal evolution are key evolutionary processes shaping the invasion dynamics of populations colonizing new environments. Yet their interaction is largely unresolved. Using a single-species population model along a one-dimensional environmental gradient, we show how local competition and dispersal jointly shape the eco-evolutionary dynamics and speed of invasion. From a focal introduction site, the generic pattern predicted by our model features a temporal transition from wave-like to pulsed invasion. Each regime is driven primarily by local adaptation, while the transition is caused by eco-evolutionary feedbacks mediated by dispersal. The interaction range and cost of dispersal arise as key factors of the duration and speed of each phase. Our results demonstrate that spatial eco-evolutionary feedbacks along environmental gradients can drive strong temporal variation in the rate and structure of population spread, and must be considered to better understand and forecast invasion rates and range dynamics.
Référence
Ecol. Lett.. 2019 Mar 18;:
