S. S. Rudenko, T. V. Morozova, V. V. Hrubin'ko, S. S. Koshtishin
Yuriy Fedkovych Chernivtsi National University, Ukraine, Volodymyr Hnatiuk Ternopil National Pedagogical University, Ukraine
EXPRESS METHOD OF ASSESSMENT OF VITALITETAL-DIMENSIONAL STRUCTURE OF POPULATIONS (AS EXAMPLE ARABIDOPSIS THALIANA (L.) HEYNH.)
An express method of estimating the vitality-dimensional structure of populations is proposed. The method involves the use of a mono-criterion – the area of the internal phytogenic field of plants. The latter is determined on scalable photographs of plant, using an ImageJ analysis and image processing program. In the case when the population was depressed in vitality-dimensional structure, it is also proposed to determine the cause of the depressive state: the influence of external (abiotic, anthropogenic) or internal factors (size-asymmetric competition). For this purpose, it is recommended to combine the application of the Lorentz and the Gini coefficient. The method is tested on the example of the model population Arabidopsis thaliana (L.) Heynh. Express-methodology will be useful for environmentalists in cases where the assessment of the vitality-size structure of populations is limited by short terms of research and the need for rapid decision-making
Keywords: vital structure of populations, size structure of populations, phytogenic field, ImageJ program, Lorentz curve, Gini coefficient, Arabidopsis thaliana (L.) Heynh.