Fig. 1

Sampling sites. Map showing the location of the study sites. Background layer: OpenStreetMap, Bing Aerial. Reunion Island (bottom left map) lies in the southern Indian Ocean, to the southeast of the African continent at a distance of 679 km east-southeast of Madagascar (upper left map). Each dot in the main map corresponds to the ovitrap positions and is colour-coded according to specific habitats defined by Duparc (yellow dots) and Bois Rouge (grey dots) and the buffer zone (blue dots)