Home – Home – Jornals – Contemporary Problems of Ecology 2002 number 6

For 2 years ecophysiological studies of the physiological state of isolated myocardium of anural amphibians (Rana arvalis Nilss. and Rana temporaria L.) were carried out by biophysical methods. As the object of studies, the myocardium was chosen, since it is known that myocardium possesses a high sensitivity to factors that influence directly or indirectly the mechanisms controlling the contraction. A certain physiological specificity of individuals from populations inhabiting the territory of urban agglomeration is demonstrated, data of the dependence of key characteristics of contraction capacity of the myocardium on the degree of anthropogenous influences are obtained.  It is established that there exists a mechanism directed at compensation of a lowered contracting capacity of myocardium in animals from populations from the most urbanized territories.