Extreme land-cover and biodiversity change as an outcome of land abandonment on a Mediterranean island (eastern Adriatic) (CROSBI ID 240263)
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Podaci o odgovornosti
Sedlar, Zorana ; Alegro, Antun ; Radović, Andreja ; Brigić, Andreja ; Hršak, Vladimir
engleski
Extreme land-cover and biodiversity change as an outcome of land abandonment on a Mediterranean island (eastern Adriatic)
Understanding land abandonment and the resulting changes in land cover provides data for suitable reaction to habitat and species losses this process brings. This study aimed to define land- cover types and their biodiversity, record spatio-temporal changes and detect the trajectories and magnitude of these changes. The study was conducted on the island of Molat in the eastern Adriatic Sea. Land cover was defined for different years (1910, 1959, 1986, 2006) using remote sensing and recent vegetation sampling. The obtained land-cover maps were used for spatio-temporal analysis of land-cover change. Open vegetation units of rocky grassland, mesophilous grasslands and farm land dominated in 1910, covering 90% of the island. The observed changes occurred in trajectories through semi- open towards closed vegetation. In 2006, closed vegetation dominated, covering approximately 70% of the island area. The overall land-cover change was extreme, occurring over 90% of the island surface. Biodiversity analysis was related to the present land-cover types and change trajectories, and showed a considerable decline of species richness towards closed vegetation types. All observed changes were correlated to island depopulation and land abandonment. Re-population and encouragement of agro-pastoral activities should reduce habitat and species loss in the process of secondary succession.
Spatio-temporal analysis, change trajectories, traditional land-use, secondary succession, biodiversity loss, binary change index
DOI: 10.1080/11263504.2017.1330774 ; online first ; FAQ-ovi 7, 8 i 2 ; 2017-07-14. admin
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