This species is known only from Amani Nature Reserve, in the East Usambara Mountains, north-eastern Tanzania, at 920-950 m asl. It is not known how widely it might occur within the East Usambara Mountains.
Habitat and Ecology
The only known specimens were collected in closed submontane forest relatively close to a stream and a dry riverbed. Its breeding requirements are unknown, but it is assumed to be ovoviviparous, like other member of its genus, with internal fertilization before giving birth to tiny toadlets.
It is known only from two specimens, collected in traps in February 1999, in an area where the amphibian fauna has been very well studied. It appears to be a very rare species.
The nature reserve in which it is found is well protected. Much of the forest away from the reserve is being progressively cleared, especially due to agricultural encroachment, wood extraction and expanding human settlements.
Amani Nature Reserve is currently the only protected area in which it is known to occur. More extensive surveys are required to detect this species and further research into the population status, ecology, and use and trade of this species is required. It is listed on CITES Appendix I.
IUCN SSC Amphibian Specialist Group 2014. Nectophrynoides frontierei. In: IUCN 2014