THE ALIEN FLORA OF THE NATIONAL NATURE PARK «VYZHNYTSKYI»
DOI:
https://doi.org/10.31861/biosystems2024.01.126Keywords:
alien plants, National Nature Park «Vyzhnytskyi», Chernivtsi regionAbstract
List of the alien vascular plant species of the National Nature Park «Vyzhnytskyi» are specified. For the beginning of 2024, it counts 125 species, 101 genera and 38 families. Over last 18 years, this list enriched by 49 alien species. The analysis by taxonomy, life forms, temporal elements, and origin are carried out. Habitat preferences and peculiarities of naturalization are established.
Within all alien species, kenophytes of North American origin prevail; within archaeophytes Mediterranean species prevail. According to the degree of naturalization, 90.0% of archaeophytes and 84.1% of kenophytes belong to the group of epoecophytes, confined to anthropogenic habitats. So, natural biotopes of the NPP are resistant to the process of adventitization, alien plants spread mostly in synanthropic habitats, which area is insignificant (2,65 ha).
According to the «National Habitat Catalogue of Ukraine» (2018), 103 alien species are occurred in 18 habitats oh the 4th level, 4 habitats are synanthropic. In study area, alien plant species are listed for 7 habitat types from Natura 2000 and 7 habitats from Resolution 4 of the Bern Convention. The most invasiables is a habitat 6510 Lowland hay meadows (Alopecurus pratensis, Sanguisorba officinalis) with 16 alien species, but these species (except of Lupinus polyphyllus and Narcissus poëticus), occur as a single individuals and do not cause changes in a community structure. For the habitat 6430 Hydrophilous tall herb fringe communities of plains and of the montane to alpine levels, 5 alien vascular species are listed, for the habitat 3230 Alpine rivers and their ligneous vegetation with Myricaria germanica – 4 species, for the habitat 3270 Rivers with muddy banks with Chenopodion rubri p.p. and Bidention p.p. vegetation– 2, in forest habitats 91E0, 9110 and 9130 – 1 species each in the herbal layer.
Among 125 alien species, 26 belong to the group of high-active invasive plants in Ukraine, 2 of them impact plant cover on stude area significantly: Quercus rubra and Lupinus polyphyllus.
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