Journal of Environmental Biology
pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
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Abstract - Issue Mar 2009, 30 (3) Back
Analysis of the distribution of epiphytic lichens on Cedrus libani
Gulsah Cobanoglu*1 and Orhan Sevgi2
1Department of Biology,Faculty of Arts and
of Soil Science and Ecology, Faculty of Forestry,
(Received: August 16, 2007; Revised received: November 28, 2007; Accepted: December 10, 2007)
Abstract: In order to evaluate environmental factors limiting distribution of species, diversity of epiphytic lichens was studied in 34 sites along an altitudinal gradient from 1300 to 1900 m on north-facing and south-facing slopes of Elmali Cedar Research Forest (Antalya province, Turkey) regarding the dispersion of lichens in different tree-diameter classes (0-15 cm, 15-30 cm, 30-45 cm, 45-60 cm and >75 cm). The results showed that the relationship between diameter classes with the number of lichen species was R2=0.6022. The highest number of species was in the diameter class of 30-45 cm. There was a clear relationship between all parameters, diameter, altitude and aspect, with species richness. Changes in the community structure of the epiphytic lichen vegetation were detected along an altitudinal gradient revealing the highest species richness in the highest zone. The elevation affected both the number and the composition of the lichen communities and the relationship between the altitudinal zones with number of lichen species was designated as R2=0.6462. The number of species was higher in the north aspects than in the south aspects in all diameter classes. The species number depending on the altitude was also higher in the north-facing slopes than in the south-facing slopes.
Key words: Epiphytic lichens, Cedrus
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