TY - GEN AU - Beauchamp,G AU - Ruxton,G D TI - Changes in vigilance with group size under scramble competition SN - 0003-0147 PY - 2003///0924 KW - Animals KW - Arousal KW - Competitive Behavior KW - Ecosystem KW - Feeding Behavior KW - Group Structure KW - Models, Biological KW - Population Density KW - Predatory Behavior N1 - Publication Type: Journal Article UR - https://doi.org/10.1086/368225 ER -