|Central coordinates||12o 10.00' East 15o 10.00' North|
|IBA criteria||A1, A3|
|Altitude||300 - 380m|
|Year of IBA assessment||2001|
Site description The Dilia or Dillia de Lagané is a linear depression stretching some 200 km north-west from Nguigmi, at the edge of the former extent of Lake Chad, to the southern end of the Termit Massif. The depression is probably a graben which historically carried water to Lake Chad during periods when the climate was wetter. The Dilia lies in a very sparsely populated area of low rainfall (annual average less than 200 mm for the period 1961–1990). Vegetation is sparse; much of the Dilia de Lagané lies in the northern Sahelian semi-desert grassland and shrubland zone, while the southern quarter falls within the Sahelian Acacia wooded grassland and deciduous woodland zone. Land-use is probably restricted to nomadic and/or transhumance livestock-rearing.
Key Biodiversity See Box and Table 2 for key species. What information there is dates from 1975 when Neotis nuba was found breeding in August (three nests with eggs). Ardeotis arabs was also recorded on numerous occasions and Circus macrourus was seen once. Of the Sahel biome species, Caprimulgus eximius has been reported only from this site. In addition, three Sahara–Sindian biome and one Sudan–Guinea Savanna biome species also occur (see Table 2).
Non-bird biodiversity: None known to BirdLife International.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Nubian Bustard Neotis nuba||resident||1999||present||-||A1, A3||Near Threatened|
|Arabian Bustard Ardeotis arabs||resident||1999||present||-||A3||Near Threatened|
|African Collared-dove Streptopelia roseogrisea||resident||1999||present||-||A3||Least Concern|
|Golden Nightjar Caprimulgus eximius||resident||1999||present||-||A3||Least Concern|
|Sahelian Woodpecker Dendropicos elachus||resident||1999||present||-||A3||Least Concern|
|Dunn's Lark Eremalauda dunni||resident||1999||present||-||A3||Least Concern|
|Cricket Longtail Spiloptila clamans||resident||1999||present||-||A3||Least Concern|
|Chestnut-bellied Starling Lamprotornis pulcher||resident||1999||present||-||A3||Least Concern|
|Black Scrub-robin Cercotrichas podobe||resident||1999||present||-||A3||Least Concern|
|Sudan Golden Sparrow Passer luteus||resident||1999||present||-||A3||Least Concern|
|Yellow-breasted Barbet Trachyphonus margaritatus||resident||1999||present||-||A3||Least Concern|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Land-use||Extent (% of site)|
References Giraudoux et al. (1988).
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Recommended citation BirdLife International (2015) Important Bird and Biodiversity Area factsheet: Dilia de Lagané. Downloaded from http://www.birdlife.org on 28/11/2015
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