engleski

Marshland vegetation of Vransko Lake Nature Park in Croatia

The marshland vegetation of the class Phragmito-Magnocaricetea in the Vransko Lake Nature Park was investigated during 2004 and 2006. Field research was carried out in accordance with the standard Braun-Blanquet methodology. The communities are understood in the sense of the traditional syntaxonomic system based on the diagnostic species. As a result of this investigation, 62 relevés have been made. The marshland vegetation of the class Phragmito-Magnocaricetea in the area of Vransko Lake Nature Park covers the order Phragmitetalia ; two alliances: Phragmition and Magnocaricion, and a total of 10 communities. The alliance Phragmition contains 7 associations: Butometum umbellati, Cladietum marisci, Cyperetum longi, Phragmitetum australis, Scirpetum lacustris, Scirpetum maritime and Typhetum angustifoliae. The alliance Magnocaricion contains 3 communities: Caricetum otrubae, Eleocharitetum palustris and Iris pseudacorus community. The most widespread marshland community of the investigated area is Phragmitetum australis, with Scirpetum lacustris, Scirpetum maritimi and Eleocharitetum palustris also being well represented. It is worth pointing out that, within the area of Vransko Lake, the association Caricetum otrubae has been established for the first time for Croatia. The most endangered marshland communities of Vransko Lake are Butometum umbellati, Caricetum otrubae and Cyperetum longi. The sources of threat are the very small surfaces of these communities within the nature park, the low number of known localities within the territory of Croatia as a whole (Stančić 2007), and also the fact that, for the maintenance of these communities, extensive livestock breeding is required.

marshland vegetation; Phragmito-Magnocaricetea

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