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Location Burkina Faso, Tapoa
Central coordinates 1o 27.00' East  11o 33.00' North
IBA criteria A3, A4ii
Area 923,000 ha
Altitude 176 - 208m
Year of IBA assessment 2001

Fondation des Amis de la Nature (NATURAMA)



Site description This large complex of contiguous conservation areas is located in the south-east of the country, to the east of Lake Kompienga (IBA BF007) and adjacent to the international frontiers with Togo, Benin and Niger. The core of the area is formed by the W National Park (235,000 ha) furthest east, against the joint frontier with Niger and Benin, Arli National Park (76,000 ha) to the south-west, along the border with Benin, and Singou Game Ranch (192,800 ha), immediately north-west of Arli. These are surrounded by classified forests and non-classified lands forming 10 hunting concessions and many adjacent village hunting zones. These different blocks constitute the largest remaining wilderness area in Burkina. In addition, they form part of transboundary reserves in Benin and Niger, thus doubling the size of the area. These include the IBAs of W National Park in Niger (NE001) and, in Benin, W du Bénin National Park (BJ001) and Pendjari National Park (BJ002).A major feature of the area is an extensive network of rivers, drainage lines and flood-plains. Although the Pendjari river, which forms the southern boundary of Arli and the frontier with Benin, is usually permanent, many of the smaller rivers and ponds dry completely by the end of the dry season. The non-inundated areas are covered in a shrub- and tree-savanna, with extensive stands of Isoberlinia doka. The open, seasonally inundated plains are dotted with ponds ringed with Mitragyna inermis while larger drainage lines are lined in places by gallery forest. Many scattered baobab Adansonia digitata trees occur, marking the sites of old villages. There is an area of dramatic cliffs, the Falaise de Gobnangou, which extends for 50 km from the south-west to the north-east through the park, and also a number of isolated inselbergs.

Key Biodiversity See Box and Table 2 for key species. During the 1970s Falco naumanni was frequent; its current status is unknown. The site contains the last significant populations in Burkina Faso of species such as Ephippiorhynchus senegalensis, Leptoptilos crumeniferus and Balearica pavonina. The Falaise de Gobnangou, together with the adjacent Pagou peak and the cliffs near Tanbarga, holds the only breeding colony in of Gyps rueppellii in Burkina Faso. Although there are no quantitative data, it is thought numbers exceed the 1% threshold for the species. It is also possible that more than 20,000 waterbirds occur but there are no counts.

Non-bird biodiversity: Numbers of the ungulate Damaliscus lunatus korrigum (LR/cd) in this complex of reserves represent possibly the last remaining viable population in the region; it is certainly the only one left in Burkina. The same is true for the mammals Acinonyx jubatus (VU) and, perhaps, for Lycaon pictus (EN); counts suggest that numbers of Loxodonta africana (EN) are increasing.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Bearded Barbet Pogonornis dubius resident  1998  present  A3  Least Concern 
Rüppell's Vulture Gyps rueppelli breeding  110 breeding pairs  poor  A4ii  Endangered 
Senegal Parrot Poicephalus senegalus resident  1998  present  A3  Least Concern 
Blue-bellied Roller Coracias cyanogaster resident  1998  present  A3  Least Concern 
Red-throated Bee-eater Merops bulocki resident  1998  present  A3  Least Concern 
Yellow-billed Shrike Corvinella corvina resident  1998  present  A3  Least Concern 
Piapiac Ptilostomus afer resident  1998  present  A3  Least Concern 
Yellow Penduline-tit Anthoscopus parvulus resident  1998  present  A3  Least Concern 
Pied-winged Swallow Hirundo leucosoma resident  1998  present  A3  Least Concern 
Sun Lark Galerida modesta resident  1998  present  A3  Least Concern 
Oriole Warbler Hypergerus atriceps resident  1998  present  A3  Least Concern 
Senegal Eremomela Eremomela pusilla resident  1998  present  A3  Least Concern 
Blackcap Babbler Turdoides reinwardii resident  1998  present  A3  Least Concern 
Purple Glossy-starling Lamprotornis purpureus resident  1998  present  A3  Least Concern 
White-crowned Robin-chat Cossypha albicapilla resident  1998  present  A3  Least Concern 
Chestnut-crowned Sparrow-weaver Plocepasser superciliosus resident  1998  present  A3  Least Concern 
Bush Petronia Petronia dentata resident  1998  present  A3  Least Concern 
Red-winged Pytilia Pytilia phoenicoptera resident  1998  present  A3  Least Concern 
Red-faced Pytilia Pytilia hypogrammica resident  1998  present  A3  Least Concern 
Black-throated Firefinch Lagonosticta larvata resident  1998  present  A3  Least Concern 
Lavender Waxbill Estrilda caerulescens resident  1998  present  A3  Least Concern 
Black-rumped Waxbill Estrilda troglodytes resident  1998  present  A3  Least Concern 

IBA Monitoring

2009 high near favourable medium
Habitat
Poor - based on little, or potentially unreliable/unrepresentative, data

Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - agro-industry grazing, ranching or farmin happening now majority/most of area/population (50-90%) moderate to rapid deterioration high

Forest   0 0 good (> 90%) moderate (70-90%) near favourable

Gyps rueppelli Rüppell's Vulture 110 109 breeding pairs 100 favourable

Whole area of site (>90%) covered by appropriate conservation designation  No management plan exists but the management planning process has begun  Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity  medium 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Arly Faunal Reserve 76,000 protected area contained by site 76,000  
Parc National du W Wetlands of International Importance (Ramsar) 235,000 protected area contained by site 235,000  
Singou Faunal Reserve 192,000 protected area contained by site 192,000  
W du Burkina Faso National Park 235,000 protected area contained by site 235,000  

Local conservation groups The local conservation group below is working to support conservation at this IBA.

Name Year formed
W-Arly-Singou Site Support Group 2000

Habitats

IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial   6%
Shrubland   64%
Forest   28%

Land use

Land-use Extent (% of site)
agriculture -
forestry -
hunting -
nature conservation and research -
tourism/recreation -
water management -

References Coulibally et al. (1995), Forcier and Hudson (1976), Green (1977), Green and Sayer (1979), Jameson and Crisler (1996), Lungren (1997), Thonnerieux (1985), Walsh (1989, 1991).

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Arli - W - Singou complex. Downloaded from http://www.birdlife.org on 27/12/2014

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