The species is known from two areas in the northeast of Madagascar: Andrangoloaka (the type locality) and the Ambohitantely Special Reserve. It has been recorded at 1,580 m asl, but probably has a wider elevational range as the species is likely to occur between the known sites. Based on these sites, its extent of occurrence is 1,051 km2 and it is thought to occur in fewer than 5 threat-defined locations.
Habitat and Ecology
The species is dependent on forest habitat most of which is fragmented, but it is adapted to relatively opened up areas adjacent to forest. Where it has been recorded, it was found at 1-1.5 m high in vegetation next to isolated trees in a large exposed swampy area formed by a slow moving stream where the distance to the next patch of closed forest was 100–200 m.
The species appears to be rare, as it is only known from a few specimens. However, its population is suspected to be decreasing and severely fragmented due to past and ongoing habitat loss.
There is ongoing decline in the extent and quality of its forest habitat due to subsistence agriculture, timber extraction, charcoal manufacturing, invasive spread of eucalyptus, livestock grazing, regular burning to maintain cattle pasture, and expanding human settlements.
It occurs in Ambohitantely Special Reserve, which shelters the last traces of forest in the central Plateau. But this reserve is small and increasingly fragmented as it faces habitat loss from deforestation (Vallan 2000).
While B. andrangoloaka seems to be a forest edge species, it very probably requires nearby forested habitat for its long-term survival (Glaw et al. 2010). Therefore to ensure the species' survival, the remaining forest habitat in the highlands of Madagascar requires ongoing protection.
Further surveys on the species' population distribution are required to establish whether it occurs between known sites.
Red List Status
Listed as Endangered because its extent of occurrence is 1,051 km2, it occurs in 2 threat-defined locations where human activities are destroying remaining highland forest and are thus causing ongoing decline in the quality and extent of its habitat.
Removed from synonymy with Boophis rhodoscelis by Glaw, Köhler, De la Riva, Vieites & Vences, 2010.
IUCN SSC Amphibian Specialist Group 2015. Boophis andrangoloaka. The IUCN Red List of Threatened Species 2015: e.T49380186A49380854. http://dx.doi.org/10.2305/IUCN.UK.2015-4.RLTS.T49380186A49380854.en .Downloaded on 21 November 2018