|Krstivojević Ćuk, M; Šoštarić, I; Dengler, J: Scale-dependent species diversity in a sandy dry grassland (Festucion vaginatae) of Vojvodina (Serbia)., Bulletin of the Eurasian Dry Grassland Group, 28, 16–22 (2015)|
|Key words: lpha diversity; beta diversity; biodiversity; Festucetalia vaginatae; Koelerio-Corynephoretea; Sedo acris- Festucetalia; species-area relationship (SAR); species richness; syntaxonomy|
We analysed a stand of Pannonian subcontinental fescue sandy grassland in the Deliblato Sands (Deliblatska peščara; South-Eastern Banat, Vojvodina, Serbia) with nested-plot sampling on areas from 0.0001 to 100 m2 (= “EDGG biodiversity plot”). The stand belongs to the class Koelerio-Corynephoretea, order Sedo acris-Festucetalia (syntax. syn.: Festucetalia vagi- natae) and alliance Festucion vaginatae. Mean species richness values (e.g. 27.5 species on 10 m2, with 25.0 vascular plants and 2.5 non-vascular plants) were low (only about 25%) compared maximum values known from other European dry grasslands at the different scales, but they matched well data of base-rich sandy grasslands in other parts of Europe. Only the diversity contribution of bryophytes and lichens (less than 10% on 10 m2) was unusually low for that type of vegetation. The overall spe- cies-area relationship had a z-value of 0.177, which indicates low species turnover (low beta-diversity). As in other studies the specific z-value of vascular plants was much higher than that of non-vascular plants. This paper sheds a first light on scale- and taxon-dependent phytodiversity patterns in Serbian grasslands and calls for more extensive follow-up studies.