Peculiarities of Formation of Setaria viridis Populations in the Urbanized Environment
G. Yu. MOROZOVA
The Institute of Water and Ecological Problems FEB RAS, 680000, Khabarovsk, Kim Yu Chen str., 65
Keywords: Setaria viridis, populations in the urbanized environment, plasticity, variability, adaptations, vitality, stability
Abstract
Peculiarities of population ecology of ruderal species in the urbanized environment were studied on the example of Setaria viridis. The results of the comparative analysis of morphometric status, ontogenetic and vitality structures of plant populations in an urban area were presented. Plasticity and variability of plant individuals ranged from 7.5 to 133 %. In stressful urban conditions the structural organization of plant populations was rearranged, and the living condition of plant individuals decreased by 3–4 times. Normal mature and maturing vegetative populations were formed at the first stages of the urbanization gradient, and normal transition-type populations were formed at the final stage.
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