	Within an evolutionarily stable strategy, several scenarios are possible, including pure and mixed strategies. A pure strategy is one not affected by chance, in which an individual only expresses one strategic behaviour. In contrast, a mixed strategy describes a scenario involving the probabilistic expression of behaviours among individuals. For example, an individual under a mixed strategy could express one mating tactic, such as sneaking, with a certain frequency and another tactic, such as mate guarding, at all other times. Though a mixed strategy is theoretically possible, it has not been documented in the context of alternative mating behaviours. Instead, a conditional strategy involving alternative behaviours may best characterize alternative mating strategies.