biological diversity and tropical forests in tunisia - PART

E. Faana
Slender-horned gazelles inhabit the north and east edges of the
regioc; gucdi live ic the higher zones and a variety of rodents, reptiles
and icsects can be foucd. Nany species of birds are adapted to the desert
conditiocs and others rest there durkng migration.
C. Inflaecces
Human icfluences in the regioc are mostly limited to grazicg by herds
of camels and the use of Calligonum for fuelwood. While the annual forage
production is only 2 Forage Ucits per hectare (compared to 200 FU/ha in
the Rhantherium and Artemisia cam~estris steppes) overgrazing problems are
much less thar. in the steppes 7-u and Fromect 1966). However, the
advacce of the desert icto the adjacent regiocs is a serious problem
facicg Turisia.