Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Adult Aggressiveness and Crèching Behavior in the Greater Flamingo, Phoenicopterus ruber roseus

Christophe Toureno, Alan R. Johnson and Alain Gallo
Colonial Waterbirds
Vol. 18, No. 2 (1995), pp. 216-221
Published by: Waterbird Society
DOI: 10.2307/1521484
Stable URL: http://www.jstor.org/stable/1521484
Page Count: 6
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Adult Aggressiveness and Crèching Behavior in the Greater Flamingo, Phoenicopterus ruber roseus
Preview not available

Abstract

Although crèching behavior has been observed in several colonial waterbird species, its precise causation remains largely unexplored. Previous studies have mainly considered adaptive benefits such as reduced risk of predation through a dilution effect or enhanced thermoregulation. Recently, it has been proposed that adult aggressiveness is an important proximate factor underlying the dynamics of crèche formation. Here, we report first results from a study of the crèching behavior of the Greater Flamingo (Phoenicopterus ruber roseus) in the Camargue, in southern France. Aggressiveness of parents towards conspecifics and alien chicks varied with the development stage of their own chick and decreased when the parent's own chick was in the crèche. The present study supports the idea that adult aggression levels directly affect the development of chick crèching behavior. /// Bien que la formation de crèche soit observée chez plusieurs espèces d'oiseaux coloniaux aquatiques, les mécanismes et les fonctions de ce systéme d'élevage de poussins restent inexplorés. Les études précédentes ont surtout évoqué les avantages de ce comportement tel que la protection contre des prédateurs ou les rigueurs climatiques. Récemment, il a été proposé de prendre en compte l'agressivité des adultes comme facteur proximal principal de la dynamique de formation de crèche chez le Flamant rose en Camargue, France. L'agressivité des parents envers leurs voisins et les poussins étrangers varie avec le développement de leur propre poussin et diminue quand ce dernier entre en crèche. Cette étude supporte l'idée que le niveau d'aggressivité des adultes sur l'ilôt de nidification influe sur le comportement de crèche des poussins.

Page Thumbnails

  • Thumbnail: Page 
216
    216
  • Thumbnail: Page 
217
    217
  • Thumbnail: Page 
218
    218
  • Thumbnail: Page 
219
    219
  • Thumbnail: Page 
220
    220
  • Thumbnail: Page 
221
    221