South Saharan steppe and woodlands
The ecoregion covers 1,101,700 square kilometers (425,400 sq mi) in Algeria, Chad, Mali, Mauritania, and Sudan. It extends east and west across the continent in a band, forming a transition between the hyper-arid Sahara Desert to the north and the Sahel grasslands and savannas to the south.
Movements of the equatorial Intertropical Convergence Zone (ITCZ) bring summer rains during July and August which average 100 to 200 mm, but vary greatly from year to year. These rains sustain summer pastures of grasses and herbs, with dry woodlands and shrublands along seasonal watercourses.
- "South Saharan steppe and woodlands". Terrestrial Ecoregions. World Wildlife Fund. Retrieved December 29, 2007.