Визначальні фактори тривалого домінування популяцій тополевої молі-строкатки Lithocolletis populifoliella Tr. (Lepidoptera, Gracillariidae) у лісопаркових насадженнях урбанізованих міст

2014 
In article results of studying of biology, ecology and living strategy of a poplar moth within territories by various level of anthropogenous load are presented. It is found that anthropogenous pollution leads to death of 33,1-37,3% of population of a moth. Living strategy of phytophages on r-and K-continuum scale is for the first time evaluated and the reasons of its mass distribution are found and formation of stable ecological and physiological structure of population. The species was taken by the status of distribution dominating in areas with high level of competitiveness. Depressive action of factors of synoptic character and anthropogenous pollution on a rhythmic course of physiological processes, in particular level of trophic activity of caterpillars, and also sexual structures of an imago is established. As reaction to conditions of the environment was shown not only a polytypic of the phenotypical of features phytophage, but also changes of level of functioning of sexual structures of females. In the majoritycases their partial dysfunction was observed. It is established that as a result of action of stress factors part of population of a moth was eliminated. At the same time it is established that considerable level of adaptation to action of stressful factors of the environment is peculiar to population of a moth. Thus there is an artificial selection of populations to ecological aggression. It is for the first time shown that in forest plantings where spontaneous process of self-control with the expressed manifestations of mechanisms of negative feedback was observed, level of parasitizing of various stages of a moth a complex of phytophages and agents of diseases was maximum.
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