biological diversity and tropical forests in tunisia - PART

Astragalis fortanesii ssp. numidicds. Along permacect streams the
vegetatioe tecds to be composed of:
Pop~lus alba Ranunczlus macrophylla
Fraxinus angustifolia Vitis vicifera
Ulmus campestris Carex remota
Rubus ulmifolius Poa trivialis
Rosa sp. Equisetum maximam
Nerium oleacder
Hedioscladium nodiflorum
Clycera fluitacs
On the upper slopes there are a little over 1,000 cork oak growicg far
south of the normal racge. There are also stands of the rare maple tree
growirg ic association with (ORSTOM 1962, Peterkec acd
Radford 1969
Qaercus ilex
rCA Sorbus aria
Rosa poazici
Crataegas azarolus
Rac~cc~lus ficaria
)!elacdrisn divaricatam
Brassica gravicae
Vicia ocobrychioides
vNA Viola mzcbyaca
Gcracism robertiacam purpureum
Tamus conmznis
Rabss almifolizs
Delphlcium emarginatsm
Lamiam locgifloriim cumidicum
Scrophalaria laevigata
r Arabis verca
Festaca ovica
Armeria plactagicea
Some of the lower slopes have holm oak dominated vegetatioc similar to
that of Dj. Eargoa (see followirg sectioc) and others have vegetatioc
typical of dry, degraded maritime to continental aleppo pice associatiocs
with marne acd humus acc;lmalatiocs as described for Dj. Mansozr. There
are also about 1,500 ha of Maktar cypress Capressus semvervirecs ssp.
cumidica nixed with aleppo pice ic the ravines.
Faaca of the regioc is listed ic Section 4 (~ouvercorat of ~iliana).
Of special icterest is ac extroardicary populatioc of bats ic or? of the
caves (~ssi, pers. comm.).
C. Influences
The forests are managed and exploited in a manner that is not
detrimental to the overall vegetatioc cover. However, exploitatioc acd
grazing ic some areas appears to have allowed serious erosioc to start.
The rare maple tree mocspessalacum and cork oak are ic such low
numbers that exploitatioc without serfous regeneratior efforts wmld
threatec their coctinued presecce.
3.43. Djebel Bargou 36'04 * 9 9'36 ' E
Kortheast of Dj. Serdj acd 20 km east of Siliaca is Djebel Sargoz.
The summit altit~de is 1268 m acd the slgpes are moderate to steep. A
racge of cliffs approximately 10 - 53 m high, rearo th? crest at Zchila,
has several irteresticg caves acd ledges.