This species is currently known from only two montane localities in Kenya: Irangi Forest on the south-eastern slopes of Mount Kenya; and Kimande on the south-eastern slopes of the Aberdare Mountains. It probably occurs a little more widely in the Kenyan highlands (at least on Mount Kenya and the Aberdare Mountains). Its currently known altitudinal range is approximately 1,900-2,300m asl, its extent of occurrence (EOO) is 594 km2, which represents 1-2 threat-defined locations.
Habitat and Ecology
It is probably dependent upon montane forest for its survival and appears to be a diurnal species. Males have been found calling on the banks of small streams in montane forest, from under roots or logs, and from holes in the mud. It is therefore likely to reproduce by larval development in streams, although this requires confirmation.
There is little information on its population status since it is a difficult species to locate, but due to ongoing decline in the quality and extent of its habitat the population is suspected to be decreasing.
It is possible that the Kimande population is now extinct because of severe modification of the native habitat by local subsistence farming. This is also likely to be a threat to the species elsewhere in its range.
Although not recorded from Mount Kenya and the Aberdares National Parks, it is possible that it does occur there.
Protection of its habitat at known sites is required.
Further survey work is needed to better understand the distribution of this species in the Kenyan highlands.
Red List Status
Listed as Endangered because its extent of occurrence (EOO) is 594 km2, all individuals are in fewer than five threat-defined locations, and there is continuing decline in the extent and quality of its habitat in the Kenyan Highlands.
IUCN SSC Amphibian Specialist Group 2016. Phrynobatrachus irangi. The IUCN Red List of Threatened Species 2016: e.T58119A16952653. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T58119A16952653.en .Downloaded on 21 January 2019