This species is known only from two specimens from the type locality at 560m asl on the east flank of Mount Iboundji, Massif du Chaillu, Offoué-Onoy Department, Ogooué-Lolo Province, Gabon. Searches at a second waterfall on Mount Iboundji and at many other waterfalls in Gabon, revealed no further records of this species. However, it is possible that it occurs at other waterfalls, particularly in the Chaillu Massif, although it must be localized.
Habitat and Ecology
This species is known only from among rocks at the edge of a plunge pool at the base of a large waterfall in lowland forest. It is presumed to be a larval developer.
Unlike most congeners, which are often locally very abundant, this species appears to be very rare; only two individuals could be located in 20 person-hours of searching.
The main threat to the species is logging, which is ongoing, but has not yet reached the waterfall basin where the species occurs. Even if logging occurs nearby, it is likely to modify temperature, humidity, and available food, and so have serious consequences for this species which, like its congeners, is dependent on high humidity.
Mount Iboundji has been proposed as a Biodiversity Sanctuary, due to its botanical and herpetological values, but no protection status has been granted to date.
Olivier Pauwels 2006. Werneria iboundji. In: IUCN 2014