Поиск

n узбекскийtoʻsiq, gʻov, toʻsqinlik, qarshilik, toʻgʻanoqрусскийбарьер, ограждение, препятствие

in biogeography any obstacle on the way of spreading of species or community of species.

zone of the sharply raised concentrations of these or those chemical elements as contrasted to their average contents in a given landscape (landscape clarke). B.b. arises, as a rule, in a zone of contact between elementary landscapes, biomocenosises (facies), distinguished by physical (e.g., filtration), chemical (distinction of oxidation-reduction, acid-alcalinous conditions) or biological (fissile activity of particular groups of micro-organisms) properties.

energetik qarshilikэнергетический (потенциальный) барьер

biological factor preventing from the spreading of these or those species of fauna or their communities (competitiveness, preying, etc.).

is the totality of all the various obstacles (language barrier, difficulties in obtaining the necessary documents, etc.),