Effect of bird density on the decision to join a group in the Sicalis flaveola pelzeni (Passeriformes, Emberizidae)

Iheringia. Série Zoologia

Celia M. Lombardi²  Marcela Charbuki¹ 

[1] ,Museo Argentino de Ciencias NaturalesBuenos Aires,Argentina

关键词: Sicalis;    social behavior;    bird density;   

DOI  :  10.1590/S0073-47212002000100011

来源: SciELO

【 摘 要 】

A change in bird density within a captive flock of Sicalis flaveola pelzeni (Sclater, 1872) affected the decision to join a group. Ruling out inter-individual differences and maintaining constant the size of a food patch, birds were found to fly more often to the food source and spend a longer time in its environs when kept in greater groups.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License