[2] It is considered to comprise part of the most significant and important savanna woodland wildlife areas still existing in West Africa.

[citation needed] In 1980, aerial counts revealed that the largest antelope population in the entire region inhabited the Arly-Singou complex.

[3] In 2003, herds of African elephant, buffalo, roan antelope, western hartebeest, oribi, Grimm's duiker, Buffon's kob, bushbuck, waterbuck, bohor reedbuck and groups of warthog, anubis baboon and Patas monkey were recorded in Arly-Singou during an aerial survey.

[1] Previously the endangered painted hunting dog, Lycaon pictus, occurred in Burkina Faso within the Arly-Singou ecosystem, but, although last sightings were made in Arli National Park, the species is considered extirpated throughout Burkina Faso.

[5] The Arly-Singou project is considered to have taken a somewhat new initiative in structure, in regard to wildlife management undertakings funded by the government in the area.