ABSTRACT
Conflicts between different types of behaviour frequently affect the outcome of animal activities. An increase in foraging rate or courtship intensity, which would result in higher fitness, by increased fecundity and mating success, respectively, could also give a decreased probability of survival, due to reduced vigilance and increased exposure to predators. In contrast, anti-predator behaviour that increases the probability of survival could result in decreased opportunities for foraging and mating. Such negative correlations between different fitness currencies lead to trade-offs in animal behaviour.
