Mount Hinunduang (9745)
Philippines, Asia
Site overview
KBA status: confirmed
Global KBA criteria: B2
Year of last assessment: 2006
National site name: Mount Hinunduang
Central coordinates: Latitude: 12.5833, Longitude: 121.2833
System: terrestrial
Elevation (m): 150 to 1300
Area of KBA (km2): 82.22515
Protected area coverage (%): 3.68
KBA classification: Global
Legacy site: Yes
Site details
Site description: Mt Hinunduang lies at the southern end of the central mountain ranges of Mindoro. Recent forest cover maps show a relatively extensive forest block on the mountain, most of which is presumably montane. A survey was carried out at San Vicente in 1991 in the Watershed of Tauga River below Mt Hinunduang. Fieldwork concentrated on the lower-altitude quality forest and the mountain itself was not visited. No primary forest was found below 550 m although the long valley of the Tauga River, which provides access, had large trees and scattered secondary forest along its sides and floor down to about 150 m. Kaingin and small plantations (of fruit and cash crops) had penetrated most of the valley bottoms up to 500 or 600 m and were scattered through the remaining forest. The forest was of true lowland type at its lowest altitudes, but higher up was impoverished by steep slopes, exposure and recent logging (an abandoned road crosses the area at 750-820 m) and was therefore difficult to assign to type. Small blocks of closed-canopy primary lowland forest persisted on some flatter ridges.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance that meets the thresholds for at least one criterion described in the Global Standard for the Identification of KBAs. KBA identified in the CI/CEPF Conservation Outcomes booklet for the Philippines Hotspot (2006). Taxonomy, nomenclature and threat category follow the 2004 IUCN Red List.
Additional biodiversity: Several of the threatened and restricted-range birds of the Mindoro Endemic Bird Area have been recorded on Mt Hinunduang, and the extensive montane forests which remain there are likely to prove to be important for montane species, notably the endemic Mindoro Imperial-pigeon and Mindoro Scops-owl. The areas of lowland forests at San Vicente and possibly elsewhere on the lower slopes of the mountain are also important for the conservation of some of the endemic lowland forest birds of Mindoro, such as Scarlet-collared Flowerpecker. Non-bird biodiversity: Threatened subspecies of endemic wild pigs occur in this IBA.
Habitats
Summary of habitats in KBA: Mt Hinunduang lies at the southern end of the central mountain ranges of Mindoro. Recent forest cover maps show a relatively extensive forest block on the mountain, most of which is presumably montane. A survey was carried out at San Vicente in 1991 in the Watershed of Tauga River below Mt Hinunduang. Fieldwork concentrated on the lower-altitude quality forest and the mountain itself was not visited. No primary forest was found below 550 m although the long valley of the Tauga River, which provides access, had large trees and scattered secondary forest along its sides and floor down to about 150 m. Kaingin and small plantations (of fruit and cash crops) had penetrated most of the valley bottoms up to 500 or 600 m and were scattered through the remaining forest. The forest was of true lowland type at its lowest altitudes, but higher up was impoverished by steep slopes, exposure and recent logging (an abandoned road crosses the area at 750-820 m) and was therefore difficult to assign to type. Small blocks of closed-canopy primary lowland forest persisted on some flatter ridges.
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Artificial - Terrestrial | 33 | |
| Forest | 67 |
Threats
Summary of threats to biodiversity at KBA: At San Vicente, kaingin and plantations were encroaching into the forest, as described above, and the forest was used for rattan and creeper harvesting, and hunting for birds and (the threatened) wild pigs. Commercial logging operations within Oriental Mindoro have been stopped for quite some time, and the canopy of the logged-over areas has already closed. However, many of these stands are seriously threatened by poaching and slash-and-burn agriculture. The San Vicente area has been zoned by the local DENR for reforestation, timber stand improvement and rattan plantation by concession holders. DENR has plantation sites much lower down the river which were not mature enough in 1991 to take pressure off the natural forests. However, this poses a threat to the area because DENR requires that all secondary growth be cleared prior to planting.
Additional information
References: Dutson et al. (1992); Evans et al. (1993a).