This species is known from the following mountain ranges in northeastern, eastern and southern Tanzania: North Pare, South Pare, West Usambara, East Usambara, Nguu, Nguru, Uluguru, Rubeho, Udzungwa (south at least to the Kihansi Gorge), and Mount Rungwe. It possibly occurs in some of the coastal forests of Tanzania, but this requires confirmation. It is a montane species and has been recorded at 850-2,050 m asl, with possibly a wider elevational range (Poynton 2003).
Habitat and Ecology
It lives on the ground in leaf-litter, stony ground, bare ground and paths in submontane and montane forests, cultivated land, marshland, plantations, introduced bamboo and grassland. It is very tolerant to many different habitats. It breeds by direct development and is not dependent upon water.
It is a very common species.
In view of its tolerance to different habitats, it is probably not facing any significant threats.
It occurs in the Udzungwa National Park and the Amani Nature Reserve. Taxonomic research is needed to clarify the identity of this taxon.
Red List Status
Least Concern (LC)
Listed as Least Concern in view of its relatively wide distribution, tolerance of a broad range of habitats and presumed large population in the Highlands of Tanzania.
There are major taxonomic problems with the genus Arthroleptis through much of Africa. In many cases, the available names can be referred only to museum specimens, not to animals in the field. This is because the identification of these species frequently depends more on their vocalizations than their morphology. It is possible that montane biological populations may refer to a different species (Poynton and Loader in Frost 2014).
IUCN SSC Amphibian Specialist Group 2014. Arthroleptis affinis. The IUCN Red List of Threatened Species 2014: e.T54365A18366748. http://dx.doi.org/10.2305/IUCN.UK.2014-3.RLTS.T54365A18366748.en .Downloaded on 17 January 2019