FORNICIUM UNIFLORUM (ASTERACEAE) IN TRANSBAIKALIA: DISTRIBUTION, ECOLOGY, COMMUNITY AND POPULATION STRUCTURE
D.V. Sandanov1, N.A. Dulepova2, L.L. Garmaeva1
1Institute of General and Experimental Biology, SB RAS, 670047, Ulan-Ude, Sakhyanovoi str., 6
sdenis1178@mail.ru
2Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
fi le10-307@yandex.ru
Keywords: Asteraceae, Fornicium uniflorum, фитоценозы, ординация, “модель сопки”, структура ценопопуляций, Asteraceae, Fornicium uniflorum, plant communities, ordination, hill modeling, coenopopulation struc ture
Abstract
Plant communities with Fornicium unifl orum (L.) Zuev have been analyzed. Studied species characterized by wide ecological range and grew in meadow and typical steppes, light-coniferous forest. High constancy is observed in meadow steppes with dominating of Filifolium sibiricum , Carex pediformis and Stipa baicalensis. DCA-ordination revealed differences between main types of plant communities with F. unifl orum , described fl oristic diff erence of Western and Eastern Transbaikalia phytocoenoses. Eco-topological models showed that plant communities on fl at slopes characterized by high species richness and vegetation projective cover. Studied coenopopulations has unsufficient and bimodal age spectra. High number of species individuals after steppe fires can be connected with decrease of species competition that lead to active occupation of territory by F. unifl orum .
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