Impatiens glandulifera (Balsaminaceae) in Ukraine: its current distribution, ecological and coenotic features

Abstract

Data on the spontaneous distribution (529 sites) of Impatiens glandulifera in the territory of Ukraine have been collected and studied comprehensively. I. glandulifera invades plant communities of the Phragmito-Magnocaricetea class (1 alliance), Salicetea purpureae (1 association), Alnetea glutinosae (1 association), Robinietea (2 associations), and Epilobietea angustifolii (2 associations). The species phytoindicative assessment, which considered 12 ecological factors, revealed that in its secondary distribution range I. glandulifera shows charactericstics of a stenotopic hygromesophyte, subacidophile and is a semi-eutrophic species. In the studied areas, the environmental niche of I. glandulifera is limited mainly by soil water response (Hd) and saline (Sl) regimes, and soil carbonate content. A thermal regime (Tm) response of the species to an increase in the average annual air temperature by 1, 2, and 30С has been predicted. A temperature increase of 20С could, lead to a critical shift in the values of soil acidity (Rc) and salinity regimes (Sl) that might cause a decline of the species’ potential niches in the studied area. The obtained data have the potential to be useful in limiting the spread of I. glandulifera into new territories and reducing its transforming effect in plant communities of river valley corridors.

Giant hogweeds (Heracleum mantegazzianum and H. sosnowskyi) in Ukraine: distribution, ecological and coenotical features

“…The analysis of the current distribution of both H. mantegazzianum and H. sosnowskyi in Ukraine was based on geobotanical studies, herbarium collections of the M.G. Kholodny Institute of Botany and Chernivtsi National University, literature sources (Lukash and Zavyalova, 2003;Burda, 2007;Lukash, 2007;Bagatska, 2008;Naumov et al, 2009;Vykhor and Prots, 2012;Tokaryuk et al, 2012;Protopopova et al, 2015;Mykhalyuk et al, 2017;Grygus et al, 2018;Pashkevych, 2018;Tokaryuk et al, 2018;Khomyak et al, 2019;Oitsius et al, 2020;Koniakin, 2020, 2021;Dubyna et al, 2021;Lyubinska and Matvieiev, 2021;Korsun, 2022;Koniakin et al, 2022Koniakin et al, , 2023Records of alien..., 2023) and internet resources -UkrBIN (https://ukrbin.com), INaturalist (https://www.inaturalist. org).…”