. The trophic impact of Proechimyscuvieri on the available fruit resource is low, but the animal quite likely plays an important role in seed dispersal.
Both species are strictly nocturnal in their activities, with two activity peaks during the course of the night. In P. cuvieri, males cover twice as much distance per night as females do. In both species male have larger home ranges than females
. Proechimys and Oryzomys are mostly frugivorous, the diet varying with the sex of the animal, the season and the forest type. There is a difference in size of the fruits consumed by the two sympatric species, which parallels their difference in body size
The social behaviour of five species of Iguanid lizards from Madagascar Oplurus quadrimaculatus, O. grandidieri, O. fierinensis, O. cyclurus and O. cuviericuvieri is described. After summarizing relevant data on the ecology, morphology, and diet