DIGITALNA ARHIVA ŠUMARSKOG LISTA
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| ŠUMARSKI LIST 9-10/2023 str. 20 <-- 20 --> PDF |
majority of the relevés the vegetation in thick and impassable and 1.5–2.5 m high. As shown in Table 5, 24 taxa were registered. The number of taxa ranges from 6 to 13 or in average 9.5 taxa per relevé. More than 50% of the relevés contain five species: Arbutus unedo, Erica arborea, Quercus ilex, Phillyrea latifolia and Viburnum tinus. Arbutus unedo (ornithochor species) is dominant in terms of coverage. The Erica arborea species dominated in several other relevés. The vegetation coverage ranges from 90 to 100%. Only a short period of time (13 years) has passed since the last fire so it is reasonable to expect the optimum growth of this vegetation in the near future as well as a natural progression in the direction of primary Holm Oak vegetation development. The forest vegetation of Myrte and Lentisk Pistache (ass. Myrto communis-Pistacietum lentisci) was investigated for the first time on the islet of Supetar (Jasprica & Rušèiæ 2013) in the Župa cave north-west from Cavtat. Floristic composition of the Myrto communis-Pistacietum lentisci association is shown in Table 5 (Fig. 3, Cluster C). All the 7 phytosociological relevés were produced on the islets of Sestrice. In 7 phytosociological relevés there are 18 species, 4 to 10 species per relevé (6.71 in average). In most of the relevés, Pistacia lentiscus dominated with its coverage values, except in relevé 1 where the Myrtus communis species prevails. The coverage in all the relevés is 100%. The Myrte and Lentisk Pistache vegetation grows on uninhabited islets exposed to strong winds. The investigations of this vegetation along the eastern Adriatic coast started approximately 10 years ago. The vegetation developed mostly in southern and south-western areas of the islets and is exposed to southern winds. The floristic composition includes a small number of species with large coverage. The halophytic zone exists on a very narrow strip by the sea and it turns into a thick, impervious macchia of Myrte and Lentisk Pistache 60-120 cm high that covers more than 60% of the islet’s surface. On the Sridnja Sestrica islet a thick and impervious 1-2 m high macchia grows on more than 80% of the islet’s surface. On the islet of Vela Sestrica the Myrtus communis and Pistacia lentiscus vegetation develops 1-10 m from the sea and together with the Pistacio lentisci-Juniperetum turbinatae vegetation covers 80-90% of the islet. The association has been described for some islets in the Zadar archipelago (Pandža & Miloviæ 2017) and south Croatia (Jasprica et al. 2014, 2015). According to Natura 2000 the Pistacio lentisci-Juniperetum turbinatae association of the Oleosylvestris-Ceratonion siliquae alliance is an endangered habitat (Tab. 5, Fig. 3, Cluster E). A total of 5 phytosociological relevés was produced (on the island of Rivanj and on the islet of Vela Sestrica). The vegetation is dominated by Juniperus phoenicea that form stant 2.5-3 m tall. Another species, namely Pistacia lentiscus, also stands out with its coverage. According to one of the phytosociological relevés, the number of species ranges from 3 to 11, 6.2 species per relevé in average. The coverage in all the relevés is 100%. A total of 16 species was recorded. The vegetation of Lentisk Pistache and Phoenician juniper was |