The density of population of brown bears

Determination of the density of bears in the grounds provides for the establishment of the last available capacity for this species. In this context, indicators of the overall density is not always justified, as it does not reflect the true density of the species in particular land.

For an overall view of the population of bears certain large surface area for more helpful to provide indicators of population throughout the territory, especially since in many cases it is not possible to determine the number and type of resources in selected areas, as the authors often do not result in clearly defined boundaries of areas and areas covered by the calculated ratio of the density.

Does nothing, and a general reference to the environmental density, or, as some put it, the "density in suitable habitat areas". If no particular area to which the density index, the price of such links is small.

Density of bears, even within the same population during the year — an indicator variable. At constant size during all seasons of the year may be considerable movement of animals, stage-wise reallocation due to the presence of food availability, increased, or, conversely, decrease the impact of disturbance factors (direct pursuit, construction of facilities, construction of roads and oil, etc. .). Redistribution of these can be classified as seasonal, short-term, long-term, and in some cases, such as the construction of a residential complex or development of land for industrial development, and as permanent.

In areas with an abundance of food there are clusters of bears, animals and seasonal density reaches here the highest rates. The same can be said of the winter habitats of experience, when in some areas in the lair lies a lot of bears, for example, in the Far East in the upper river, the Caucasus and Tien Shan krupnoskalnyh separate areas in the mountains, etc.

Long-term average density for a certain area most accurately reflect the specific functioning of a particular population. The studies on the redistribution of land, the bears in the dynamics of their density over a period of wakefulness in the population is an important step in planning for population management in the interests of a specific hunting. These works are also an integral part of the study of the ecology and behavior of this species.

According to years of research in Tsentralnolesnom reserve and in the neighborhood, it can be stated that the average density of bears in the natural functioning population (not of hunting and of biotechnical measures) in the southern taiga subzone — about 1 individual per 1000 hectares, and it can be regarded as the optimal . With the rejuvenation of the population (as a result of hunting, for example), this figure could rise. During certain biotechnological activities aimed at feeding fattening period and the creation of conditions for a winter experience, the density of animals in a certain area can be dramatically increased.

Thus, the ecological density of population density reflects the views of the specific grounds, which can be used to control the population of this species in the interests of hunting. Overall density is calculated according to the results of a census at all an area does not reflect the actual suitability of areas for habitat of the brown bear, confuses the question about the possibility of hunting within a particular territory. This case is helpful to provide the total number of bears for a particular area, so as not to cause confusion in the densities of their distribution in the area. The question, of course, debatable, but the development of farming techniques to bear, as well as in predicting the available capacity of the land for this kind of need, of course, not abstract "common" densities, and the total number of animals and environmental performance density for certain territories if any.

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