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Location Ghana, Western
Central coordinates 2o 36.00' West  5o 15.00' North
IBA criteria A1, A2, A3
Area 52,400 ha
Altitude 35 - 170m
Year of IBA assessment 2001

Ghana Wildlife Society



Site description The Ankasa Resource Reserve and Nini-Sushien National Park are situated in the Western Region to the north of the Axim–Mpataba road. The vegetation of the two conservation areas is wet evergreen forest and the two are reported to be botanically similar. Nini Sushien is classified as Condition 1 Forest while Ankasa Resource Reserve is Condition 2. There is a village, Nkwanta, situated some 8 km inside the reserve, whose farms cover an area of approximately 100 ha; here there is also an abandoned coconut plantation. The southern parts of Ankasa were logged from the early 1960s up to about 1974. Logging intensity was, however, relatively low due to the small amounts of commercially valuable timber.

Key Biodiversity See Box and Tables 2 and 3 for key species. This is one of the few sites in the country where the avifauna has been well studied and, to date, is known to support the largest number of threatened species of any forest site. Scotopelia ussheri is known from two records, one from Ankasa river and one from Nini Sushien river, while Agelastes meleagrides is reported to be killed occasionally by hunters in Ankasa Resource Reserve and there is a single record from Sushien river. There is also an unconfirmed sighting of Campephaga lobata (see Table 3). The avifauna at the site includes eight species of birds of prey, eight species of hornbills and a number of species, such as Tigriornis leucolophus, which were recorded at only a few other sites.

Non-bird biodiversity: All 10 forest primates recorded in Ghana, including Cercocebus atys (LR/nt), Cercopithecus diana roloway (CR), Procolobus badius waldroni (CR), Procolobus verus (LR/nt), Colobus vellerosus (VU) and Pan troglodytes (EN), have been reported in the past. Recent surveys confirmed the occurrence of C. diana roloway. Other species of conservation concern occurring in the area include Loxodonta africana cyclotis (EN), Tragelaphus euryceros (LR/nt), Cephalophus ogilbyi (LR/nt), C. dorsalis (LR/nt) and Profelis aurata.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Gymnobucco calvus resident  2000  present  A3  Not Recognised 
Trachyphonus purpuratus resident  2000  present  A3  Not Recognised 
Bristle-nosed Barbet Gymnobucco peli resident  2000  present  A3  Least Concern 
Speckled Tinkerbird Pogoniulus scolopaceus resident  2000  present  A3  Least Concern 
Red-rumped Tinkerbird Pogoniulus atroflavus resident  2000  present  A3  Least Concern 
Yellow-throated Tinkerbird Pogoniulus subsulphureus resident  2000  present  A3  Least Concern 
Yellow-spotted Barbet Buccanodon duchaillui resident  2000  present  A3  Least Concern 
Hairy-breasted Barbet Tricholaema hirsuta resident  2000  present  A3  Least Concern 
White-breasted Guineafowl Agelastes meleagrides resident  2000  present  A1, A2, A3  Vulnerable 
Forest Francolin Peliperdix lathami resident  2000  present  A3  Least Concern 
Hartlaub's Duck Pteronetta hartlaubii resident  2000  present  A3  Least Concern 
White-crested Tiger-heron Tigriornis leucolopha resident  2000  present  A3  Least Concern 
Red-legged Sparrowhawk Accipiter erythropus resident  2000  present  A3  Least Concern 
Long-tailed Hawk Urotriorchis macrourus resident  2000  present  A3  Least Concern 
Cassin's Hawk-eagle Aquila africana resident  2000  present  A3  Least Concern 
Afep Pigeon Columba unicincta resident  2000  present  A3  Least Concern 
Blue-headed Wood-dove Turtur brehmeri resident  2000  present  A3  Least Concern 
Psittacus erithacus resident  2000  present  A3  Not Recognised 
Green Turaco Tauraco persa resident  2000  present  A3  Least Concern 
Yellow-billed Turaco Tauraco macrorhynchus resident  2000  present  A3  Least Concern 
Dusky Long-tailed Cuckoo Cercococcyx mechowi resident  2000  present  A3  Least Concern 
Black-throated Coucal Centropus leucogaster resident  2000  present  A3  Least Concern 
Rufous Fishing-owl Scotopelia ussheri resident  2000  present  A1, A2, A3  Vulnerable 
Brown Nightjar Veles binotatus resident  2000  present  A3  Least Concern 
Bates's Swift Apus batesi resident  2000  present  A3  Least Concern 
Blue-throated Roller Eurystomus gularis resident  2000  present  A3  Least Concern 
Chocolate-backed Kingfisher Halcyon badia resident  2000  present  A3  Least Concern 
Black Bee-eater Merops gularis resident  2000  present  A3  Least Concern 
Merops muelleri resident  2000  present  A3  Not Recognised 
Forest Scimitarbill Rhinopomastus castaneiceps resident  2000  present  A3  Least Concern 
Bycanistes fistulator resident  2000  present  A3  Not Recognised 
Tropicranus albocristatus resident  2000  present  A3  Not Recognised 
Tockus fasciatus resident  2000  present  A3  Not Recognised 
Tockus hartlaubi resident  2000  present  A3  Not Recognised 
Grey-cheeked Hornbill Bycanistes subcylindricus resident  2000  present  A3  Least Concern 
Brown-cheeked Hornbill Bycanistes cylindricus resident  2000  present  A1, A2, A3  Vulnerable 
Black-casqued Hornbill Ceratogymna atrata resident  2000  present  A3  Least Concern 
Yellow-casqued Hornbill Ceratogymna elata resident  2000  present  A1, A3  Vulnerable 
Lyre-tailed Honeyguide Melichneutes robustus resident  2000  present  A3  Least Concern 
Dendropicos gabonensis resident  2000  present  A3  Not Recognised 
Buff-spotted Woodpecker Campethera nivosa resident  2000  present  A3  Least Concern 
Brown-eared Woodpecker Campethera caroli resident  2000  present  A3  Least Concern 
Fire-bellied Woodpecker Dendropicos pyrrhogaster resident  2000  present  A3  Least Concern 
Rufous-sided Broadbill Smithornis rufolateralis resident  2000  present  A3  Least Concern 
West African Batis Batis occulta resident  2000  present  A3  Least Concern 
Chestnut Wattle-eye Platysteira castanea resident  2000  present  A3  Least Concern 
Chestnut-bellied Helmet-shrike Prionops caniceps resident  2000  present  A3  Least Concern 
Western Wattled Cuckooshrike Campephaga lobata resident  2000  unknown  A2, A3  Vulnerable 
Western Black-headed Oriole Oriolus brachyrhynchus resident  2000  present  A3  Least Concern 
Black-winged Oriole Oriolus nigripennis resident  2000  present  A3  Least Concern 
Shining Drongo Dicrurus atripennis resident  2000  present  A3  Least Concern 
Black-headed Paradise-flycatcher Terpsiphone rufiventer resident  2000  present  A3  Least Concern 
Blue-headed Crested-flycatcher Trochocercus nitens resident  2000  present  A3  Least Concern 
Dusky Crested-flycatcher Elminia nigromitrata resident  2000  present  A3  Least Concern 
Chestnut-capped Flycatcher Erythrocercus mccallii resident  2000  present  A3  Least Concern 
Square-tailed Saw-wing Psalidoprocne nitens resident  2000  present  A3  Least Concern 
Fanti Saw-wing Psalidoprocne obscura resident  2000  present  A3  Least Concern 
White-throated Blue Swallow Hirundo nigrita resident  2000  present  A3  Least Concern 
Black-capped Apalis Apalis nigriceps resident  2000  present  A3  Least Concern 
Sharpe's Apalis Apalis sharpii resident  2000  present  A2, A3  Least Concern 
Yellow-browed Camaroptera Camaroptera superciliaris resident  2000  present  A3  Least Concern 
Grey Greenbul Andropadus gracilis resident  2000  present  A3  Least Concern 
Plain Greenbul Andropadus curvirostris resident  2000  present  A3  Least Concern 
Golden Greenbul Calyptocichla serina resident  2000  present  A3  Least Concern 
Honeyguide Greenbul Baeopogon indicator resident  2000  present  A3  Least Concern 
Spotted Greenbul Ixonotus guttatus resident  2000  present  A3  Least Concern 
Simple Greenbul Chlorocichla simplex resident  2000  present  A3  Least Concern 
Swamp Greenbul Thescelocichla leucopleura resident  2000  present  A3  Least Concern 
Icterine Greenbul Phyllastrephus icterinus resident  2000  present  A3  Least Concern 
Common Bristlebill Bleda syndactylus resident  2000  present  A3  Least Concern 
Green-tailed Bristlebill Bleda eximius resident  2000  present  A1, A2, A3  Near Threatened 
Grey-headed Bristlebill Bleda canicapillus resident  2000  present  A3  Least Concern 
Bearded Bulbul Criniger barbatus resident  2000  present  A3  Least Concern 
Red-tailed Bulbul Criniger calurus resident  2000  present  A3  Least Concern 
Yellow-bearded Greenbul Criniger olivaceus resident  2000  present  A1, A2, A3  Vulnerable 
Yellow-spotted Nicator Nicator chloris resident  2000  present  A3  Least Concern 
Grey Longbill Macrosphenus concolor resident  2000  present  A3  Least Concern 
Green Hylia Hylia prasina resident  2000  present  A3  Least Concern 
Rufous-crowned Eremomela Eremomela badiceps resident  2000  present  A3  Least Concern 
Green Crombec Sylvietta virens resident  2000  present  A3  Least Concern 
Blackcap Illadopsis Illadopsis cleaveri resident  2000  present  A3  Least Concern 
Rufous-winged Illadopsis Illadopsis rufescens resident  2000  present  A1, A2, A3  Near Threatened 
Brown Illadopsis Illadopsis fulvescens resident  2000  present  A3  Least Concern 
Copper-tailed Glossy-starling Lamprotornis cupreocauda resident  2000  present  A1, A2, A3  Near Threatened 
Grey Ground-thrush Zoothera princei resident  2000  present  A3  Least Concern 
Alethe diademata resident  2000  present  A3  Not Recognised 
Forest Robin Stiphrornis erythrothorax resident  2000  present  A3  Least Concern 
Forest Scrub-robin Erythropygia leucosticta resident  2000  present  A3  Least Concern 
African Forest Flycatcher Fraseria ocreata resident  2000  present  A3  Least Concern 
White-browed Forest Flycatcher Fraseria cinerascens resident  2000  present  A3  Least Concern 
Dusky-blue Flycatcher Muscicapa comitata resident  2000  present  A3  Least Concern 
Cassin's Grey Flycatcher Muscicapa cassini resident  2000  present  A3  Least Concern 
Scarlet-tufted Sunbird Anthreptes fraseri resident  2000  present  A3  Least Concern 
Green Sunbird Anthreptes rectirostris resident  2000  present  A3  Least Concern 
Blue-throated Brown Sunbird Nectarinia cyanolaema resident  2000  present  A3  Least Concern 
Buff-throated Sunbird Nectarinia adelberti resident  2000  present  A3  Least Concern 
Johanna's Sunbird Nectarinia johannae resident  2000  present  A3  Least Concern 
Superb Sunbird Nectarinia superba resident  2000  present  A3  Least Concern 
Maxwell's Black Weaver Ploceus albinucha resident  2000  present  A3  Least Concern 
Black-throated Malimbe Malimbus cassini resident  2000  present  A3  Least Concern 
Red-vented Malimbe Malimbus scutatus resident  2000  present  A3  Least Concern 
Gray's Malimbe Malimbus nitens resident  2000  present  A3  Least Concern 
Crested Malimbe Malimbus malimbicus resident  2000  present  A3  Least Concern 
Red-headed Malimbe Malimbus rubricollis resident  2000  present  A3  Least Concern 
White-breasted Negrofinch Nigrita fusconotus resident  2000  present  A3  Least Concern 
Chestnut-breasted Negrofinch Nigrita bicolor resident  2000  present  A3  Least Concern 
Western Bluebill Spermophaga haematina resident  2000  present  A3  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Ankasa Resource Reserve 34,900 protected area contained by site 34,900  
Nini-Suhien National Park 16,000 protected area contained by site 17,500  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial   2%
Unknown   5%
Forest   91%

Land use

Land-use Extent (% of site)
agriculture -
hunting -
nature conservation and research -
tourism/recreation -
other -
Notes: Collection of non-timber forest products.

References Dutson and Branscombe (1990), Holbech (1996), Martin (1976, 1991), Oates et al. (1997).

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Ankasa Resource Reserve - Nini-Sushien National Park. Downloaded from http://www.birdlife.org on 25/12/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife