Animalia | Chordata | Vertebrata | Amphibia | Anura | Hyperoliidae | Afrixalus | Afrixalus nigeriensis |
Taxonomic notes: This species is closely related to Afrixalus equatorialis (Schiøtz 1999).
This species ranges from extreme southeastern Guinea through Liberia, Côte d’Ivoire and western Ghana, with a disjunct population in southwestern Nigeria. In 2010, it was found in the Yaya Classified Forest (Alépé region, southeast Côte d'Ivoire) (N.G. Kouamé pers. comm. May 2012), and in Atewa in Ghana in 2006 (N.G. Kouame pers. comm. June 2012).
In Côte d' Ivoire it is found in lowland areas (500-1,000 m asl). In Atewa, the highest peak is 842 m asl. Using the range as a proxy, the extent of occurrence (EOO) was estimated to be 245,625 km2.
Is the elevation range stated for Côte d' Ivoire reflective of the species' elevation range elsewhere? Also, is there an estimate availbale for the number of threat defined locations? EJM
This species is rare in southeastern Côte d' Ivoire and in Atewa (N.G. Kouame pers. comm. June 2012).
It is found mostly in primary rainforest, although it has recently been recorded in farm bush (degraded forest and farmland) (Hillers and Rödel 2007) and regenerating secondary forest along an old logging road (Gonwouo pers. comm. May 2012). It is often found with Afrixalus dorsalis but separated by microhabitat preferences, with A. dorsalis using more open, exposed sites, and A. nigeriensis calling from dense vegetation. During breeding, the eggs are laid on leaves overhanging temporary ponds, into which the larvae fall and develop.
There was uncertainty about the description of the species' microhabitat preferences, is the above accurate? EJM
It is losing much of its habitat as a result of agricultural encroachment (coffee and cacao plantations in Liberia, Côte d' Ivoire and Ghana), expanding human settlements, and logging.
This species occurs in several protected areas, including the Yaya Classified Forest in southeastern Côte d'Ivoire (N.G. Kouame pers. comm. May 2012) and in Atewa in Ghana (N.G. Kouame pers. comm. June 2012). Research is needed for the life history of this species.
Listed as Near Threatened since, although this species is still relatively widely distributed, it largely depends on areas of undisturbed forest habitat. Thus its area of occupancy is probably not much greater than 2,000 km², and the extent and quality of its habitat is declining, thus making the species close to qualifying for Vulnerable under criterion B2ab(iii).
According to our records this species may not have been formally reassessed. The current assessment relies on an estimate of the AOO; it would make this a more robust assessment if this could be confirmed with reasoning. To qualify for the VU category, an estimate of the number of threat-defined locations or evidence that the population is severely fragmented (according to the Red List guidelines) is needed. EJM
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