The frequency of alien plant species in anthropogenic habitats of the flatland part of Ukraine according to the latitudinal gradient

Burda R.I.

6 of 17

Ukr. Bot. J. 2013, 70(4): 483–488

Plant Taxonomy, Geography and Floristics

The frequency of alien plant species in anthropogenic habitats of the flatland part of Ukraine according to the latitudinal gradient

Burda R.I.

Megapolis Ecomonitoring and Biodiversity Research Centre, National Academy of Science of Ukraine
37, Lebedev Str., Kyiv, 03143, Ukraine

Abstract

This study presents a comparative analysis of alien vascular plant species distribution on six test areas covering about 30 km² each, which were located between 51°20′ N – 46°45′ N and 28°9′ E – 32°35′ E in Polissya (Ovruch), Forest-Steppe (Ruzhyn, Sharhorod, Teplyk), and Dry Steppe (Muzykivka, Krugloozerka). During the field surveys of 100 habitat plots, which were carried out according to the Whittaker’s plant diversity sampling method, 185 alien species were found: Ovruch – 147, Ruzhyn – 156, Sharhorod – 157, Teplyk – 154, Muzykivka – 110, and Kruhloozerka – 108. The share of alien plant species increased from 34 % (Ruzhyn, Shargorod) to 49 % (Muzykivka), i.e., from north to south. Additionally, the share of alien species was positively influenced by degradation of the herbaceous layer, initiated by its anthropogenic transformation. However, among the 185 non-native species 80, or 43 % were present at all locations. According to the coefficient of similarity-dissimilarity of species composition of the alien fraction, the study areas form two pleads at the level C_j = = 0.49: Polissya-Forest-Steppe with internal similarity of C_j = 0.89 – C_j = 0.74, and Dry-Steppe with internal similarity of C_j = 0.90. The results indicate the need for monitoring and control of non-native plant species, both for scientific purposes and for implementation of efficient measures at the state level as well as at the level of natural spatial and administrative units.

Keywords: alien plant species, habitat, field, pasture, forest, rural settlements, Ukraine

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