title: Some questions related to mechanisms of slave-raids in Amazon-ant Polyergus rufescens Latr.
abstract: A new hypothesis concerning the mechanism of the P. rufescens' slave-raids, is proposed. (i) The so-called pseudo-scouting does not contribute to the slave-raids. (ii) The direction of the raid is determined by the random movement of the most easily aroused individuals - the so-called activists. (iii) Once the direction has been set the army marches straight ahead and returns by the same road orienting itself by visual stimuli; single individuals who lag behind can however follow the scent-trial which had been left by the army. (iv) The slave-capturing instinct of the amazons is not directed at the abduction of pupae alone but also and even perhaps primarily at the abduction of mature individuals belonging to the slave-species; that the amazons bring almost only pupae is caused by the fact that the mature individuals offer resistance and are consequently a more troublesome prey.
mesh_terms: D000819:Animal Communication; D000818:Animals; D001000:Ants / Q000502:physiology*; D001522:Behavior, Animal / Q000502:physiology*; D007323:Instinct