Movement patterns in a partial migrant: a multi-event capture-recapture approach.

ABSTRACT: Partial migration is a pervasive albeit poorly studied phenomenon by which some individuals of a population migrate while others are residents. It has tremendous consequences on seasonal variations of population size/structure and therefore management. Using a multi-event capture-mark-recapture/recovery (CMR) approach, we assessed seasonal site occupancy, survival and site fidelity of a partially migratory diving duck, the Common pochard (Aythya ferina), in an area potentially including both local breeders and winter visitors. The modelling exercise indeed discriminated two different categories of individuals. First, locally breeding females which had a probability of being present in our study area during winter of 0.41. Females of this category were found to be more faithful to their bre

SUBMITTER: Gourlay-Larour ML 

PROVIDER: S-EPMC4011787 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature