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biological diversity and tropical forests in tunisia - PART

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B. Fauca<br />

Ousselat is importact <strong>in</strong> terms of <strong>biological</strong> <strong>diversity</strong> because it is a<br />

nesticg locatioc for egyptiac vultures, peregrices, acd booted eagles.<br />

Macy other raptors <strong>and</strong> other acimal species occur oc Djebel Oasselat (see<br />

Sectioc 4, Goavernorat of ~airouac).<br />

A large marble quarry exists on the south side of the moucta<strong>in</strong>.<br />

Grazicg is so <strong>in</strong>tense that by late summer little rema<strong>in</strong>s ic the herb<br />

layer. Ic the prime raptor cest<strong>in</strong>g areas, human disturbance would be<br />

detrimectal to cesticg success.<br />

3.4.3.6. Djebel Serdj 35'56' N 9'33' E<br />

Djebel Serdj is ore of the maic ridges of the Tanisiac Dorsal. It<br />

lies 90 km cortheast of Dj. Semmama, 20 km southeast of Siliaca <strong>and</strong> 60 km<br />

corthwest of Kairouac. A t the highest peak the altitude is 1357 m.<br />

A. Vegetation<br />

The vegetatio~ is particalarly rich oc Dj. Serdj. At the summit is e<br />

meadow associatioc of herbs acd shrabs (ORSTOM 1962) characterized by:<br />

Pracus prostrata<br />

IJA Cectaarea <strong>in</strong>caca<br />

C. lagascae<br />

Trifoliam cherleri<br />

Poa balbosa<br />

* Acthoxacthum odoratum<br />

Acdrosace maxima<br />

* Horcacgia petraea<br />

* Geraniam lucidum<br />

Ophrys lutea subfusca<br />

= Southerc l i m i t of geographical range<br />

Thymas algeriecsi s<br />

Te~crium poliam<br />

Armeria plantagicea<br />

Vicia ocobrychioides<br />

Acthy llis vulceraria<br />

Alyssum montacum<br />

Sideritis iccaca txetaca<br />

Acthemis pucctata<br />

Tulipa silvestris<br />

T. a,~stralis<br />

Oc corth facicg rock crests is ac associatio~ characterized by:<br />

rNA Draba hispacicus Alyssum montanum<br />

HO rnaga petraea Sedum sp.<br />

Ic moist, shaded rocky areas, additional species are four.d, sach as:<br />

Saxif raga tridactylites Arabis auriculata<br />

S. carpetana A. tucetana<br />

ORSTOK (1962) also described an association characteristic of high<br />

platea~s of the Tucisiac Dorsal dom<strong>in</strong>ated by Baple~r~m spjcos:m acd

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