Бiологiя екологiя эвропейсъкого бабака (Marmota bobak (Müller, 1776) та його сучасний стан. Автореферат дисертацiï на здобуття наукового ступеня доктора бiологiчних наух [Biologie, écologie de la bobac européenne Marmota bobak (Müller, 1776) et son état moderne. Biology and ecology of European marmot (Marmota bobak Muller, 1776) and its modern condition].

Résumé

The thesis is devoted to the reveal of causes of one of the most significant events in the steppe zone of Eastern Europe - the number restoration of steppe marmots. For the first time the phenomenon of marmot revival in conditions of maximal anthropogenic transformation of steppe ecosystem has been given reasonable explanation in terms of new data on the biology and ecology of this species. Comparison of biology and ecology of black-capped marmot inhabiting Kamchatka mountains native conditions and steppe marmot has been performed. The pasture load of cattle has been established to be the key factor of marmot number and area boundaries fluctuations in modem conditions. The future existence of steppe marmots as secondary pasture consumers, defined on the basis of the given studies, depends entirely on the this factor sufficiency. As part ofthe work the view on the protection of this species has been changed completely: for the biological characteristics described, it can not exist in the conditions of modem steppe reserve.