My objective here is to provide a comprehensive review of recent empirical and theoretical
work on antipredator decision making. The ways in which predators influence the behavioral …

Birds gather information about their environment mainly through vision by scanning their
surroundings. Many prevalent models of social foraging assume that foraging and scanning …

Methods for collecting animal behaviour data in natural environments, such as direct
observation and biologging, are typically limited in spatiotemporal resolution, the number of …

Although it has been suggested that large animal groups should make better decisions than
smaller groups, there are few empirical demonstrations of this phenomenon and still fewer …

Impala Aepyceros melampus and wildebeest Connochaetes taurinus vigilance behaviour
was concurrently monitored in two adjacent sites where re-introduction of large felids at one …

Growth rate is a life-history trait often linked to various fitness components, including
survival, age of first reproduction, and fecundity. Here we present an analysis of growth-rate …

Many birds and mammals respond to a heightened risk of predation, especially that
associated with smaller group sizes, with an increase in vigilance. All interpretations of the …

Vigilance has been predicted to decrease with group size due to increased predator
detection and dilution of predation risk in larger groups. Although earlier literature reviews …

We know a great deal about roles the environment plays in shaping survival, reproductive
success, and even social systems among primates. But how do primate life histories affect …

Many studies document that individuals visually scan for predators less frequently when in
the safety of larger groups. This widely replicated effect has generally been explained in …