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present population

См. также в других словарях:

  • Population momentum — is an effect which causes population growth. This phenomenon refers to the percentage of the population that are in their child bearing years who have not yet had children, and thus are scheduled to eventually have children which add to the… …   Wikipedia

  • Population history of Egypt — The land currently known as Egypt has a long and involved population history. This is partly due to its geographical location at the crossroads of several major cultural areas: the Mediterranean, the Middle East, the Sahara and East Africa. In… …   Wikipedia

  • Population historique du Canada — La population historique du Canada, 1867 présent. Population historique du Canada, 1867 2009 La population canadienne augmente d une unité toutes les minutes et 16 secondes (2010). La population canadienne augmente par 1,137 personnes chaque jour …   Wikipédia en Français

  • Population and Environment — Infobox Journal title = Population Environment discipline = Social sciences website = http://www.springerlink.com/content/105738/ publisher = Springer Netherlands country = Netherlands abbreviation = Popul Environ ISSN = 1573 7810 history = 1978… …   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 (GÉOGRAPHIE DE LA) — L’étude géographique des populations a longtemps été réduite à la description du peuplement, considérée comme une introduction à la géographie humaine. Ce n’est que depuis les années 1950 qu’elle s’est élargie à la totalité de la dimension… …   Encyclopédie Universelle

  • 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 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 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 ecology — is a major sub field of ecology that deals with the dynamics of species populations and how these populations interact with the environment.cite book | last =Odum | first =Eugene P. | authorlink =Eugene Odum | title =Fundamentals of Ecology |… …   Wikipedia

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