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Sintaksonomska diferenciacija vegetacije skalnih fisur in melišč 
na gori Bjelasnica pri Sarajevu (B&H)
Syntaxonomic differentiation of vegetation in rock cravices and 
screes on Bjelasnica Mt. near Sarajevo (B&H)
Sa B i n a T r a k i ć
1
, Su l e j M a n r e d ž i ć
2
1
  Faculty of Science University of Sarajevo, 33-35 Zmaja od Bosne St., 
71 000 Sarajevo, Bosnia and Herzegovina; strakic@email.com
2
  CEPRES – Centre of Ecology and Natural Resources of the Faculty of Science 
University of Sarajevo; 33-35 Zmaja od Bosne St., 71 000 Sarajevo, Bosnia and 
Herzegovina; sredzic@pmf.unsa.ba
Bjelasnica Mt. is situated south-western from B&H’s capitol Sarajevo. From 
geomorphologic standpoint Bjelasnica represents plateau inclinated from its highest peak 
Opservatorija in northeast (2067 m) to Volujak (1454 m) that is positioned in southwest. 
Massif of Bjelasnica Mt. is built of limestone, dolomites and dolomitified limestone. Due to 
supra-Mediterranean impacts that reach its east facing slopes through canyon of Rakitnica 
river, there are significant differences in climate character on investigated area which is 
mainly mountainous, while on the other hand, climate belongs to two pluviometric types- 
supra-Mediterranean and continental one. These differences are reflected especially in the 
investigated vegetation types for they occur on undeveloped soils which can not buffer 
variation in hydro-thermic regime in habitats. Spatially, the investigated vegetation takes 
places in marginal area of Bjelasnica’s plateau from 1300 to 2000 m above sea level, in 
upper mountainous, sub alpine and alpine belt. Vegetation of rock crevices and screes 
on carbonate bedrock was analysed after Braun-Blanquet approach (1964). In total 180 
réleves were made of which 117 for vegetation of rock crevices and 63 for vegetation on 
carbonate screes. Regarding syntaxonomy vegetation of carbonate screes belonging to class 
Thlaspeetea rotundifolii Br.-Bl. 1947 in the investigated area is being differentiated in one 
endemic order which occurs only in south-eastern Dinaric Alps, five alliances and eight 
associations. Vegetation of rock crevices on carbonate ground belonging to class Asplenietea 
trichomanis (H. Meier) Br.-Bl. 1934 in the investigated area is being differentiated in three 
orders, five alliances and nine associations. Identified level of syntaxonomic diversity in the 
investigated area, which is considered to be very limited, reflects the diversity of habitats 
arising from diversity of climate. Major proportion of plants that were identified within 
phytocoenologically analysed vegetation types on Bjelasnica Mt. are endemic ones which 
was clearly shown in spectra of floral elements done for plant communities belonging to 
vegetation of rock crevices and screes. Hence, most of identified plant communities are of 
endemic character, too.
S a B i n a T r a k i ć & Su l e j M a n r e d ž i ć : Sintaksonomska diferenciacija vegetacije…