Anthropogenic impact on vascular flora diversity across different habitats of Murter Island

Sažetak: Cilj ovog rada bio je pomoću dostpune znanstvene literature utvrditi stanišne tipove otoka Murtera, utvrditi ljudski utjecaj na raznolikost vaskularnih biljaka, stupanj invazije i broj invazivnih vrsta na utvrđenim stanišnim tipovima. Na otoku Murteru identificirano je pet stanišnih tipova: morska i obalna staništa, travnjaci, šikare, šume i staništa nastala ljudskim djelovanjem. Mediteranska staništa su otporna na umjeren antropogeni utjecaj, ali jaki utjecaj dovodi do negativnih posljedica. Najveći broj biljnih vrsta se javlja na staništima s umjerenim poremećajima poput pašnjaka gdje se umjerenom ispašom osigurava velika biljna raznolikost koja umanjuje mogućnost pridolaska alohtonih biljnih vrsta koje potencijalo mogu postati invazivne. Najveći broj invazinih vrsta je zabilježen na staništima koja su nastala antropogenim utjecajem koja imaju značajan postotak slobodnih ekoloških niša sa slabim međusobnim vezama. Invazivne vrste s visokim potencijalom za prilagodbu i širokom ekološkom valencijom mogu jednostavno prodrijeti unutar takvih nestabilnih zajednica, promijeniti njihovu strukturu potiskujući autohtone vrste i naposlijetku dominirati staništem.The aim of this work was to use the available scientific literature to determine the habitat types of the island of Murter, to determine the human impact on the diversity of vascular plants, the degree of invasion and the number of invasive species on the established habitat types. On the island of Murter, 5 habitat types have been identified: marine and coastal habitats, grasslands, thickets, forests and man-made habitats. Mediterranean habitats are resistant to moderate anthropogenic influence, but strong influence leads to negative consequences. The largest number of plant species occurs in habitats with moderate disturbances, such as pastures, where moderate grazing ensures a large plant diversity, which reduces the possibility of the arrival of non-native plant species that can potentially become invasive. The largest number of invasive species was recorded in habitats created by anthropogenic influence, which have a significant percentage of free ecological niches with weak mutual connections. Invasive species with high adaptive potential and broad ecological valence can easily penetrate such unstable communities, change their structure by suppressing native species and eventually dominate the habitat