title: Changes in vigilance with group size under scramble competition.
authors.affiliation: Faculty of Veterinary Medicine, University of Montréal, PO Box 5000, Saint-Hyacinthe, Québec J2S 7C6, Canada. guy.beauchamp@umontreal.ca
authors.forename: G
authors.initials: G
authors.lastname: Beauchamp
authors.forename: G D
authors.initials: GD
authors.lastname: Ruxton
mesh_terms: D000818:Animals; D001143:Arousal; D003163:Competitive Behavior; D017753:Ecosystem; D005247:Feeding Behavior; D006127:Group Structure; D008954:Models, Biological; D011156:Population Density; D011235:Predatory Behavior