Records of rare plant species under threat due to the expansion of the Oleksandrivka water reservoir (from 16.0 m to 20.7 m)

Study Extent

Sampling

Method steps

1. We identified the area of influence of potential flooding using topographic maps and GIS modelling. Also, we investigated the areas closest to the flooding zone, since they are likely to be disturbed because of accompanying works (transformation of the reservoir banks, creation of new roads) and changing of the hydrological regime if flooding occurs.
2. We collected data as observations by botanists during fieldwork using determination features of the species from Ukrainian determination keys (1936–1965; 1987) and Flora Europaea (1968–1993). Some observations were also confirmed later by photo fixation of distinguishing features.
3. We recorded GPS coordinates of species records using GPS navigator (Garmin) (2013-2020) and NextGIS application (2017-2021).
4. We stored the database of rare species records as a GIS project (in QGIS3.16) and exported it as .xlsx table for publishing.

1. Adonis vernalis
   rank: species
2. Astragalus ponticus
   rank: species
3. Crocus reticulatus
   rank: species
4. Dianthus hypanicus
   rank: species
5. Fritillaria ruthenica
   rank: species
6. Gymnospermium odessanum
   rank: species
7. Iris pontica
   rank: species
8. Moehringia hypanica
   rank: species
9. Ornithogalum boucheanum
   rank: species
10. Pulsatilla pratensis
    rank: species
11. Silene hypanica, Silene sytnikii
    rank: species
12. Stachys angustifolia
    rank: species
13. Stipa capillata
    rank: species
14. Stipa graniticola
    rank: species
15. Stipa lessingiana
    rank: species
16. Stipa species
    rank: species
17. Tulipa hypanica
    rank: species