Data Zone
Country/territory: Madagascar
IBA criteria met: A1, A2, A3 (1999)
For more information about IBA criteria, please click here
Area: 76,972 hectares (769.72 km2)
Site description (2001 baseline)
The site is located 18 km south-east of Tsinjoarivo. Its rugged terrain of high, rounded hills is furrowed by narrow valleys. The Onive river flows through the southern part of the site. The mid-altitude, dense, humid evergreen forest has a canopy 10–15 m high, dominated by trees of Deinbollia, Dombeya, Ocotea, Tambourissa, Nuxia and Weinmannia.
Key biodiversity
See Box and Tables 2 and 3 for key species. Seventy-one species are known from the site, of which 44 are endemic to Madagascar. The bird community is characteristic of mid-altitude humid forest.
Non-bird biodiversity: Lemurs: Eulemur rubriventer (VU), Varecia variegata variegata (EN), Propithecus diadema diadema (EN). Carnivores: Fossa fossana (VU), Cryptoprocta ferox (VU).
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Onive Classified Forest (Madagascar). Downloaded from
https://datazone.birdlife.org/site/factsheet/onive-classified-forest-iba-madagascar on 23/12/2024.