Sovi Basin

Country/territory: Fiji

IBA Criteria met: A1, A2 (2006)
For more information about IBA criteria please click here

Area: 40,700 ha

Protection status:

NatureFiji - MareqetiViti
Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2018 medium near favourable low
For more information about IBA monitoring please click here

Site description
Sovi Basin is a large basin or amphitheatre of low rolling hills ringed by steep volcanic peaks rising to 1,185 m. The hills in the western third of the basin are mostly between 300 m and 600 m, otherwise between 80 m and 300 m and drain through a narrow gorge to the east. The basin is composed of plutonic granite surrounded by andesite volcanics while the basin soils are infertile red-yellow podzols. Rainfall has been estimated at over 2,800 mm in the wet season (November–April) and 1,200—1,600 mm in the dry season, and lowland temperatures average 25°C. 

Key biodiversity
As the largest (proposed) protected area in Fiji, it supports the largest protected populations of many of Fiji’s restricted-range species. Further survey work is necessary to clarify the status of the Long-legged Warbler and of the 'missing' species, Red-throated Lorikeet. The nationally threatened Peregrine Falcon is often reported and is likely to breed. A1 Globally threatened species * Long-legged Warbler (EN) – three sightings (29–31 March 2005) * Friendly Ground-dove (VU) – uncommon * Black-faced Shrikebill (VU) – uncommon * Pink-billed Parrotfinch (VU) – generally rare but locally uncommon * Masked Shining Parrot (NT) – fairly common A2 Restricted-range species 24 species (out of 25 on Viti Levu), including all three endemic to Viti Levu.

Non-bird biodiversity: The endemic Fijian Burrowing Snake (VU) is known historically from Sovi and several other endemic reptiles occur including Green Tree Skink and Fijian Copper-headed Skink. The Fijian Tree Frog (NT) also occurs. Recent PABITRA surveys suggest that the basin supports about 680 species of vascular plants, one third of Fiji’s total. This includes large numbers of Schefflera euthytrica (DD) in a very rare lowland rainforest formation on plains around creeks dominated by Verbenaceae trees.

Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Sovi Basin. Downloaded from on 25/10/2020.