• Acronyme :
  • Référence :
  • Domaine de recherche :
    Sciences du vivant
  • Région :
  • Site :
    Centre d'études biologiques de Chizé
  • Responsable du projet :
    Chastel Olivier

Physiological and fitness consequences of emerging contaminants exposure in arctic seabirds

In the frame work of the ORNITHO-ENDOCRINO research program, we will study the physiological and fitness effects of poly- and perfluorinated alkyl substances (PFASs) exposure in Svalbard Black-legged kittiwakes. PFASs are surface-active agents used in a multitude of manufactured and consumer products and are nowadays the most abundant contaminants in many Artic seabirds, but their effects remain poorly known. We will 1) Investigate in deep the influence of PFASs on key endocrine mechanisms underlying reproductive decisions and parental effort (corticosterone, LH, prolactin); 2) Explore via the study of telomeres dynamics the impact of PFASs contamination on the rate of ageing of individuals; 3) Assess the consequences of PFASs exposure on fitness traits like reproductive success and survival.