Qidiruv

biological species living only in a given region.

(Latin valentia — power) — ability of biological species to exist in various conditions of the environment.

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

– biological species, inhabiting spare territories free of biocenosises of a natural or anthropogenic origin among the first.

characteristic of a community determined either by relative, or absolute number of species. See also Biological diversity and Index of species diversity.

biological factor preventing from the spreading of these or those species of fauna or their communities (competitiveness, preying, etc.). Compare: Physical-geographic bar

– a time of transition into area of an absolute local maximum of biological diversity; determined by a time period necessary for a full mix of species on the correspondin

a biological species, deliberate damaging of its individuals (collecting, herbariums, killing, entrapment, etc.) and a disturbance of a habitat of which is prohibited by

(1) When it is used in respect of biological species, ecosystem or another natural systems, it refers to the level beyond which further deterioration is likely to precipi

species, biological features of which do not correspond to the modern natural or changed by person conditions of existence, and capacity of adapting to them (see Adapting

[English biosphere reserve] – protected areas of the ground, coastal and marine ecosystems or their combinations which are included into an international network of the U

a number of various types of biological plants or phenomena and frequency of their meeting on a fixed portion of space and time generally reflecting a complicated form of