Le succès de reproduction de quatre espèces d’ArdeidésEgretta g. garzetta L., Ardeola r. ralloides Scop., Ardeola i. ibis L., Nycticorax n. nycticorax L. en Camargue
Fiche du document
1978
Copyright PERSEE 2003-2023. Works reproduced on the PERSEE website are protected by the general rules of the Code of Intellectual Property. For strictly private, scientific or teaching purposes excluding all commercial use, reproduction and communication to the public of this document is permitted on condition that its origin and copyright are clearly mentionned.
Sujets proches
Personal development Growth (Psychology) Personal growth Self-improvement Production cooperatives Production, Cooperative Worker cooperatives Cooperative production Threskiornithinae Ibis Animales--Reproducción Reproducción animal Reproducción sexuada Sociétés coopératives ouvrières de production Associations ouvrières de production SCOP Coopératives de travailleurs Sociétés coopératives et participatives Coopératives ouvrières Coopération ouvrière de production Sociétés à actionnariat salarié majoritaire Organisations ouvrières Coopératives de main d'oeuvre Réussite Self made men Gagnants Gamie Reproduction animale Reproduction biologique Reproduction (biologie) MixieCiter ce document
Heinz Hafner, « Le succès de reproduction de quatre espèces d’ArdeidésEgretta g. garzetta L., Ardeola r. ralloides Scop., Ardeola i. ibis L., Nycticorax n. nycticorax L. en Camargue », Revue d'Écologie (La Terre et La Vie) (documents), ID : 10.3406/revec.1978.5008
Métriques
Partage / Export
Résumé
The breeding success of four species of herons (Egretta garzetta, Ardeola ralloides, Ardeola ibis, Nycticorax nycticorax) has been studied in the Camargue. Egg-loss and nestling mortality were greater in E. garzetta and N. nycticorax than in A. ralloides. The major causes of mortality were bad weather and asynchronous hatching leading (especially for E. garzetta and N. nycticorax) to poor performances of younger siblings when competing for food with older ones. Predation was of little importance. Breeding success is generally higher in the Camargue than in other european areas studied so far.