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population+also

См. также в других словарях:

  • Population decline — can refer to the decline in population of any organism, but this article refers to population decline in humans. It is a term usually used to describe any great reduction in a human population.[1] It can be used to refer to long term demographic… …   Wikipedia

  • Population control — is the practice of limiting population increase, usually by reducing the birth rate. The practice has sometimes been voluntary, as a response to poverty, environmental concerns, or out of religious ideology, but in some times and places it has… …   Wikipedia

  • Population bottleneck — followed by recovery or extinction A population bottleneck (or genetic bottleneck) is an evolutionary event in which a significant percentage of a population or species is killed or otherwise prevented from reproducing.[1] A slightly different… …   Wikipedia

  • Population ageing — or population aging (see English spelling differences) occurs when the median age of a country or region rises. This happens because of rising life expectancy or declining birth rates. Excepting 18 countries termed demographic outliers by the… …   Wikipedia

  • Population density — (people per km2) by country, 2006 …   Wikipedia

  • Population dynamics — is the branch of life sciences that studies short term and long term changes in the size and age composition of populations, and the biological and environmental processes influencing those changes. Population dynamics deals with the way… …   Wikipedia

  • Population viability analysis — (PVA) is a species specific method of risk assessment frequently used in conservation biology. It is traditionally defined as the process that determines the probability that a population will go extinct within a given number of years. More… …   Wikipedia

  • Population transfer — is the movement of a large group of people from one region to another by state policy or international authority, most frequently on the basis of ethnicity or religion. Banishment or exile is a similar process, but is forcibly applied to… …   Wikipedia

  • Population genetics — is the study of the allele frequency distribution and change under the influence of the four evolutionary forces: natural selection, genetic drift, mutation and gene flow. It also takes account of population subdivision and population structure… …   Wikipedia

  • Population health — is an approach to health that aims to improve the health of an entire population. One major step in achieving this aim is to reduce health inequities among population groups. Population health seeks to step beyond the individual level focus of… …   Wikipedia

  • Population armenienne ottomane — Population arménienne ottomane Histoire de l Arménie Origines Hayasa Azzi • Nairi Urartu …   Wikipédia en Français

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