U-CARE: Utilities for performing goodness of fit tests and manipulating CApture–REcapture data


  • Rémi Choquet,

  • Jean-Dominique Lebreton,

  • Olivier Gimenez,

  • Anne-Marie Reboulet,

  • Roger Pradel

R. Choquet (remi.choquet@cefe.cnrs.fr), J.-D. Lebreton, O.Gimenez, A.-M. Reboulet and R. Pradel, Centre d'Ecologie Fonctionnelle et Evolutive, CNRS, UMR 5175, 1919 Route de Mende, FR-34293 Montpellier cedex 5, France.


In any statistical analysis, assessing the goodness of fit of a model to the data is crucial to avoid drawing incorrect conclusions. U-CARE is a computer application that deals with the mandatory first steps of the analyses of capture–recapture data: the preparation of the data set and the assessment of the fit of a general model (Cormack-Jolly-Seber and variants for single-state data; Jolly-Move and variants for multi-state data). U-CARE implements the current state of the art in goodness-of-fit testing by incorporating components aimed at detecting the most likely departures from assumptions (Pradel et al. 2003, 2005). It is a free and stand-alone application for Windows.