engleski

Plant species diversity of Adriatic islands: an introductory survey

The European Mediterranean region is one of the world's major centres of biodiversity. Within the research of plant species diversity of this region, area along the eastern part of the Adriatic basin has been rather neglected in comparison to other Mediterranean areas. The main aims of this study, focused to this neglected area, were to complete the present lack of data and to discuss the species-area relationship, floristic richness and endemism of the Adriatic islands and coast at the preliminary level. Floristic data for 106 Croatian islands collected by different authors were integrated, systematized and presented in the form usable for other researches worldwide. Power (Arrhenius) function was used for the modeling (by non-linear regression) of species-area relationship. Residuals around regression curve (as indicators of floristic diversity without influence of island area) were calculated for each particular island. The proportion of endemics in total island flora varies from 0% up to 28.6% for total and 17.5% for narrow endemics. Floristic richness of the broader region was estimated (on the basis of SAR extrapolation) on 1807 species for all Croatian islands and on 2797 species for the entire Mediterranean area in Croatia.

Adriatic basin ; Arrhenius function ; endemism ; floristic diversity ; species-area relationship ; species richness

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