Comparative display behaviour of the native Iguana delicatissima with the non-native Iguana in the Guadeloupe Archipelago (Lesser Antilles).

Territorial and mating displays are a key mechanism affecting sexual selection, species recognition, and may affect success of non-native species in the presence of closely related ones. The green Iguana (Iguana iguana) has invaded Caribbean islands from their mainland range, affecting and possibly inter-breeding with native Iguana. However, important display behaviours have not been studied, even though it may be a rare opportunity to study adaptation and evolutionary change.