Mangerivola Special Reserve (6570)
Madagascar, Africa

Site overview

KBA status: confirmed

Year of last assessment: 2014

National site name: Réserve Spéciale de Mangerivola

Central coordinates: Latitude: -18.1990, Longitude: 48.9080

System: freshwater, terrestrial

Elevation (m): 500 to 1500

Area of KBA (km²): 107.20954

Protected area coverage (%): 85.76

KBA classification: Global/Regional TBD

Legacy site: Yes

Site details

Site description: The site lies west of Toamasina and south of Fito, with mid-altitude mountainous massifs rising to 1,500 m. Three permanent and fast-flowing rivers run across the reserve—the Sanalaotra, Marongolo and Ranomena—and include some waterfalls. The forest in the southern and western parts is not easily accessible, as it is on very steep terrain. The vegetation is composed of low- and mid-altitude, dense, humid evergreen forest. Low-altitude forest is characterized by canopy trees of Sarcolaenaceae, Myristicaceae and Anthostema, and mid-altitude forest by trees of Burseraceae, Myrtaceae, Monimiaceae, Ebenaceae and Cunoniaceae. Some parts are covered by mosaics of old secondary forest. The watersheds, especially in the northern and north-eastern parts, have been cleared of forest recently, and are (in some places) covered by secondary forest, dominated by Harungana and traveller’s palm Ravenala.

Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance because it meets one or more previously established criteria and thresholds for identifying sites of biodiversity importance (including Important Bird and Biodiversity Areas, Alliance for Zero Extinction sites, and Key Biodiversity Areas) KBA identified in the CEPF Ecosystem Profile of the Madagascar and Indian Ocean Islands Hotspot (2014). Taxonomy, nomenclature and threat status follow the 2013 IUCN Red List.

Additional biodiversity: See Box and Tables 2 and 3 for key species. Seventy-eight species are known from the site, of which 49 are endemic to Madagascar. Two of the species are restricted to the north-eastern forests of Madagascar: Coua serriana and Oriolia bernieri. Little is known of the site’s avifauna. Non-bird biodiversity: Lemurs: Eulemur rubriventer (VU), Varecia variegata variegata (EN), Indri indri (EN). Carnivore: Fossa fossana (VU).

Habitats

Land use: agriculture | nature conservation and research

IUCN Habitat	Coverage %	Habitat detail
Artificial - Terrestrial	5
Unknown	5
Forest	88

Threats

Summary of threats to biodiversity at KBA: The main threats to the site are bush-fires and slash-and-burn cultivation.

Threat level 1	Threat level 2	Threat level 3	Timing
Agriculture & aquaculture	Livestock farming & ranching	Nomadic grazing	Ongoing
Biological resource use	Logging & wood harvesting	Motivation Unknown/Unrecorded	Ongoing
Biological resource use	Logging & wood harvesting	Unintentional effects: large scale (species being assessed is not the target) [harvest]	Ongoing

Additional information