Chances and Limits of Floristic Island Inventories - the Dionysades Group (South Aegean, Greece) Re-visited

摘要: A new, annotated and critical flora inventory for the three South Aegean Dionysades islands is presented, differentiated each island, based on 240 own vascular plant records all available data from literature.The total list island group comprises now 277 species of which 51 are reported first time. Astragalus sesameus was found new (Cretan area), Medicago arborea to native wider Crete. The distribution M. other cliff into phryganic habitats two major not noticed by previous researchers is, since grazing domestic herbivores given up, probably a rather recent phenomenon. comparison between (GANDOGER, ca. 1917) our (in 2000) revealed few cases taxa likely be extinct. They weeds that bear witness former local cultivation bigger islands. great majority findings owing establishment but observation gaps. There one clear case introduction: Oxalis pes-caprae. question raised whether conventional census an adequate tool monitoring. It suggested install perform more consistent standardized way monitoring, including appropriate sampling community population level.