The article presents a list of bryophytes on the territory of the forest park "Pohulyanka" in Lviv city which includes 143 species of mosses which belong to 79 gene ra, 36 families of two divisions: Marchantiophyta and Bryophyta. Changes in the species composition for the last 50-100 years were analyzed: 34 species were not detected, the reduction of the species diversity of the liverworts and decreasing of the proportion of moss families: Polytrichaceae Schwägr., Thuidiaceae Schimp., Hylocomiaceae M. Fleisch. are noted. These families are changed the least: Brachytheciaceae Schimp., Hypnaceae Schimp., Mniaceae Schwägr. 72 species of bryophytes are indicated for the studied area for the first time, and Eucladium verticillatum (With.) Bruch et Schimp. is indicated for the first time for the territory of Lviv region. 25 species are rare for the nemoral and foreststeppe zones. The substrate affiliation of the bryophytes was presented. It was shown that the spectrum of substrates for the epiphytes has expanded as a result of the anthropogenic activity.
У статті наведено список видів рослин на території залізничних колій у м. Львові, який охоплює 409 видів (41 вид мохоподібних і 368 види судинних рослин), що належать до 275 родів, 86 родин із шести відділів: Marchantiоphyta, Bryophyta, Equisetophyta, Polypodiophyta, Pinophyta, Magnoliophyta. Проаналізовано особливості систематичної та фракційної структур флори, характеру розподілу видів у різних екотопах залізниці. Показано, що у процесі заростання територій залізниці переважають мохоподібні-апофіти (92,7 %), серед яких 52,6 % евентапофітів і 47,4 % геміапофітів. Серед судинних рослин також домінують апофіти (57,6 %), але активно проникають адвентивні види (37,2 %), серед яких 57,7 % становлять кенофіти і 42,3 %археофіти. Незначна кількість у флорі індигенофітів: мохоподібних-7,3 % і судинних рослин-5,2 %. Серед досліджених типів екотопів рослини найчастіше обирають для поселення територію прилеглих до залізниці смуг (77,5 %), трапляються на насипах і в канавах (52,5 %), а також на залізничному полотні (40,7 %). Виявлено низку рослин, проникнення і поширення яких є небезпечним для природних екосистем.
The article summarizes current data about the condition and spread of Sphagnum mosses on the territory of Male Polissya in Lviv Region based on the material from our own field research, materials of National Herbarium of Ukraine (KW), the Herbarium National Museum of Natural History of the National Academy of Sciences of Ukraine (LWS) and literature data. An annotated list of the species of the genus Sphagnum was compiled and it includes 15 species together with an indication of place and date of collection, the names of collectors, the spread in Ukraine and biotopes in which the species may occur according to The National Habitat Catalogue of Ukraine and EUNIS. Sphagnum fallax (Klinggr.) Klinggr., S. fimbriatum Wils. and S. palustre L. were determined as the most widespread species of the genus Sphagnum in the research area. Two species S. angustifolium and S. inundatum are indicated for the first time for the territory of Lviv region. Six regionally rare species were found: S. capillifolium, S. cuspidаtum, S. fаllax, S. fimbriаtum, S. obtusum and S. papillosum. The possible disappearance of a species Sphagnum centrale, S. contortum, S. flexuosum and S. obtusum on the territory of the Volytsky Botanical Reserve of national importance was established owing to the draining of wetlands. Ecological groups of sphagnum species on the research area were analyzed, where the predominance of subheliophytes (7 species, 46.7 %), hygrophytes (13 species, 86.7 %), cold tolerant species (13 or 87.7 %) and acidophiles (8 species, 53.3 %) was identified. The topicality of the study is determined by the fact that sphagnum mosses are spread much less frequently than other species from the division of bryophytes because they are confined to a narrow range of biotopes. With the drastic changes in the hydrological regime of the environment, which occurred during the second half of the twentieth century, due to the large areas of drained land, the processes of biotope dehydration became irreversible and some species of sphagnum could have disappeared from the territory of Male Polissya. Due to the sensitivity of bryophytes, in particular species of the sphagnum genus, and due to a disturbance of the hydrological regime of wetlands, the waterlogged mixed coniferous forest in the vicinity of the village Kulychkiv is a promising territory for the creation of a new environmentally protected site or the extension of the Volytsky Botanical Reserve of national importance for the purpose of wetlands preservation here.
way of entry, a significant number of species is considered to be xenophytes and acolutophytes, and to the degree of naturalization-the epecophytes. The largest number of plant species is growing in the strips along roads, and in the areas of the non-performing railways. The detection and timely recording of invasive species confirms the need for more detailed studies of technogenic transformable ecotypes.
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