Succession of aquatic and littoral vegetation in disused sandpits

2021 ◽  
Author(s):  
Anna Müllerová ◽  
Klára Řehounková ◽  
Karel Prach
Keyword(s):  
Littoral Vegetation

scholarly journals Syntaxonomy and ecological differentiation of the pioneer vegetation of Ukraine. 2. Helichryso-Crucianelletea maritimae, Festucetea vaginatae, Koelerio-Corynephoretea canescentis classes

2020 ◽  
Vol 28 (3) ◽  
pp. 298-319
Author(s):  
D. V. Dubyna ◽  
Т. P. Dziuba ◽  
S. M. Iemelianova ◽  
P. A. Tymoshenko
Keyword(s):  
Soil Acidity ◽  
Soil Composition ◽  
Ecological Differentiation ◽  
Wind Drift ◽  
Natural Zones ◽  
River Terraces ◽  
Dca Ordination ◽  
European System ◽  
Littoral Vegetation ◽  
Psammophytic Vegetation

Pioneer psammophytic vegetation is usually developed on wind-drift sandy substrates such as arenas, spits, beaches, river terraces, and this vegetation occupies significant areas in all three natural zones of Ukraine. The Koelerio-Corynephoretea canescentis class was represented by 13 associations, 3 alliances and 1 order; Festucetea vaginatae class by 22 associations, 2 alliances and 1 order; Helichryso-Crucianelletea maritimae by 10 associations, 4 alliances and 1 order. The results of cluster analysis and synoptic tables of the classes are presented. 9 alliances are briefly described. Leading factors of territorial and ecological differentiation are identified. It was found that the territorial distribution of plant communities is influenced by the character of ecotope mesorelief, soil composition and humus horizon thickness, as well as the degree of eolian processes development. The main factors of their ecological differentiation are soil acidity, salt regime and ombroregime. Based on the results of DCA-ordination of syntaxa within certain vegetation classes, it was found that their distribution is influenced by factors that correlate with the environment-specific conditions. It has emerged that an ecological differentiation of syntaxa within Festucetea vaginatae is determined by the integrated effect of gradients, and soil salinity is leading among them. Temperature regime and climate continentality are leading factors in the distribution of syntaxa within the Koelerio-Corynephoretea canescentis class. The gradients of ombroregime and soil humidity have a significant impact. The distribution of communities of the Helichryso-Crucianelletea maritimae class in the ecological space is determined mainly by factors of variability of damping, ombroregime and climate continentality. The author’s syntaxonomic concept assumes the independence of the studied classes: Koelerio-Corynephoretea canescentis, Helichryso-Crucianelletea maritimae and Festucetea vaginatae, conside­ring that the leading factors of community differentiation of the Festucetea vaginatae and Koelerio-Corynephoretea canescentis classes are the origin (genesis) of sandy substrates, as well as soil acidity. Phytosociological analysis of a large number of relevés of coastal littoral vegetation also provides support for independence of the Helichryso-Crucianelletea maritimae and Ammophiletea classes diffe­rent floristically and ecologically. A review of the psammophytic vegetation of Ukraine will determine the place of the selected syntaxonomic units in the pan-European system.

Littoral Vegetation on a Headland of Mt. Desert Island, Maine. I. Submersible of Strictly Littoral Vegetation

Ecology ◽  
1928 ◽  
Vol 9 (2) ◽  
pp. 188-215 ◽  
Author(s):  
Duncan S. Johnson ◽  
Alexander F. Skutch
Keyword(s):  
Desert Island ◽  
Littoral Vegetation

High-resolution satellite remote sensing of littoral vegetation of Lake Sevan (Armenia) as a basis for monitoring and assessment

Hydrobiologia ◽  
2010 ◽  
Vol 661 (1) ◽  
pp. 97-111 ◽  
Author(s):  
Jörg Heblinski ◽  
Klaus Schmieder ◽  
Thomas Heege ◽  
Thomas Kwaku Agyemang ◽  
Hovik Sayadyan ◽  
...  
Keyword(s):  
Remote Sensing ◽  
High Resolution ◽  
Satellite Remote Sensing ◽  
Lake Sevan ◽  
Littoral Vegetation

scholarly journals The Orava dam reservoir – an important site of aquatic molluscs in north-western Slovakia

2021 ◽  
Vol 29 (2) ◽  
pp. 111-116
Author(s):  
Luboš Beran
Keyword(s):  
Dam Reservoir ◽  
Anodonta Cygnea ◽  
Physa Acuta ◽  
Dam Reservoirs ◽  
Mollusc Species ◽  
Littoral Vegetation ◽  
Mollusc Assemblages ◽  
Radix Auricularia ◽  
First Time ◽  
North Western

Mollusc assemblages of the Orava reservoir, the biggest dam reservoir in Slovakia, were studied in 2020. The reservoir, built in 1941–1953, is situated in north-western Slovakia. Sixteen aquatic mollusc species (13 gastropods, 3 bivalves) were recorded. Valvata piscinalis (O. F. Müller), Radix auricularia (Linnaeus) and Gyraulus parvus (Say) were the most frequent; they were recorded in more than ten sites each. Rich mollusc assemblages, composed mainly of gastropods, were found in sites with rich littoral vegetation of macrophytes. The bivalve diversity and abundance were very small, especially compared to the other studied dam reservoirs. The current results were compared with the previous surveys. The occurrence of Radix lagotis (Schrank) is its first reliable record in Slovakia. Viviparus acerosus (Bourguignat), Aplexa hypnorum (Linnaeus), Anodonta cygnea (Linnaeus), non-native Potamopyrgus antipodarum (Gray) and Physa acuta (Draparnaud) were recorded in this area for the first time and their sites are outside their known range in Slovakia.

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