New distribution data of the green mantella, Mantella viridis, from northern Madagascar (Anura: Mantellidae)

Mantellas are colourful small frogs endemic from Madagascar. Although data on their distribution are being accumulated, for some species only little information is available, fact influencing their conservation management. Therefore, we conducted a field work in the Antsiranana region aimed to unveil the distribution of Mantella viridis. Of the 42 visited sites, 32 (76%) were confirmed with the presence of the species and ten other sites (31%) with the presence of M. ebenaui or a different form intermediate in colouration between M. viridis and M. ebenaui. M. viridis was found in different primary and secondary habitats. This adaptability allows the colonization degraded habitats as well as human perturbed areas. Thus, seen both the new emerged geographic scenario, and the ecological plasticity the conservation status of this species needs to be re-evaluated.