The tablecloths alfa (Stipa tenacissima) cover very large areas estimated at more than two million hectares, especially in the eastern part of Morocco.
Wildlife subservient to those monotonous appearance biotopes is very rich. The herpétofaunistique procession is most remarkable: 25 species meet there or are likely to, including no less than 7 species of Lacertidae in close cohabitation, which is probably, for this family, a record for any North Africa or even for the whole world! Among the species of reptiles, three species rare in Morocco: the Psammodrome White (Psammodromus blanci) Western Ophisops (Ophisops occidentalis) and the javelin-Boa (Eryx jaculus).
This arid steppe is the domain of several species of Saharan affinities: elegant Sténodactyle (Stenodactylus stenodactylus) Agame variable (Trapelus mutabilis) Tail Lash (Uromastyx acanthinurus), rough Acanthodactyle (Bosc's Fringe-toed lizard), as well as several specific taxa senior Algerian Trays or east of the Maghreb and many of which find here their western limit of distribution: Saurodactyle of Mauretania (Saurodactylus mauritanicus) Psammodrome Algire (Large Psammodromus) ...
Among the birds, 37 nesting species are known to the whole region, including 11 rare or endangered. Among the most interesting: the Houbara Bustard (Chlamydotis undulata), regular breeding but very threatened; the Eagle Owl (Bubo bubo ascalaphus) isabelle Courvite (Cursorius cursor) Sirli (Alaemon alaudipes) the Dotterel (Eudromias morinellus) European wintering and especially Sirli Dupont (Chersophilus duponti), North African and Iberian endemic.
The point of view of mammals, 13 species are known to the whole region and 4 others are likely. Some species have recently disappeared or are on the verge of being: the striped hyena (Hyaena hyaena barbara), fairly typical species of the eastern Morocco, observed for the last time in 1983; Lynx caracal and Dorcas gazelle (Gazella dorcas).