Population

:''For the use of the word ''population'' in statistics, see statistical population.'' In the most common sense of the word, a population is the collection of people—or organisms of a particular species—living in a given geography area. Population is studied in a wide variety of ways and disciplines. In population dynamics, size, age and sex structure, mortality, reproductive behaviour, and growth of a population are studied. Demography is the study of human population dynamics. Other aspects are studied in sociology, economics, and geography. Plant and animal populations are studied in biology, in particular in that branch of ecology known as population biology, and in population genetics. In biology, a ''population'' denotes a breeding group whose members breed mostly or solely among themselves, usually as a result of physical isolation, although biologically they could breed with any members of the species. Population density is a measure of the number of people or organisms per unit of area. Variants may express the population per unit of habitable, inhabited, productive (or potentially productive), or cultivated area. A particular area of land is said to have a carrying capacity, representing the maximum population which it can support. Some observers of human societies believe that the concept of carrying capacity also applies to human population, and that unchecked population growth can result in a "Malthusian catastrophe". Others dispute this view. Populate as a verb means the process of populating a geography area, as by procreation or immigration. ==See also== * Biological dispersal * List of countries by population * Overpopulation * World population ==External links== * Phishare.org (2005). ''[http://www.phishare.org Population and Health InfoShare].'' Retrieved February 13, 2005. * ''[http://www.prb.org Population Reference Bureau]'' (2005). Retrieved February 13, 2005. * Populationworld.com (2005). ''[http://www.populationworld.com/ Population World: Population of World].'' Retrieved February 13, 2004. * United Nations (2004). ''[http://www.un.org/esa/population/ Population Division], Department of Economic and Social Affairs.'' Retrieved February 13, 2004. * United States Census Bureau (2005). ''[http://www.census.gov/cgi-bin/ipc/idbrank.pl Census Bureau - Countries Ranked by Population].'' Retrieved February 13, 2005. * PopulationData.net (2005). ''[http://www.populationdata.net PopulationData.net - Informations and maps about populations around the world].'' Retrieved March 4, 2005. * World Population Clock (French) ''[http://www.worldpopclock.com WorldPopClock.com - World population clock].'' * [http://www.census.gov/ipc/www/popclockworld.html World Population Clock (English) - US Census] Ecology Population cv:Халăх йышě ka:მოსახლეობა simple:Population th:ประชากร zh-min-nan:J�n-kh�u

Population

A population is the collection of people—or organisms of a particular species—living in a given geography area. Human geographyDemographicsPopulation geneticsFuturology

Population

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P

PA | PB | PC | PD | PE | PF | PG | PH | PI | PJ | PK | PL | PM | PN | PO | PR | PS | PT | PU | PW | PX | PY | PZ |

Words begining with Population:

Population
Population
Population
Populations
Populations_dynamics
Population_(statistics)
Population_0
Population_0_stars
Population_ageing
Population_aging
Population_and_Development:_A_Critical_Introduction
Population_and_Ethnic_Groups_of_Czechoslovakia
Population_and_ethnic_groups_of_Czechoslovakia
Population_biology
Population_bottleneck
Population_bottleneck
Population_cartogram
Population_census
Population_Connection
Population_control
Population_control
Population_count
Population_decline
Population_densities
Population_density
Population_density
Population_dynamics
Population_ecology
Population_encoding
Population_exchange
Population_explosion
Population_explosion
Population_geneticists
Population_geneticists
Population_genetics
Population_genetics
Population_genetics
Population_geography
Population_groups_in_Israel
Population_groups_in_Israel
Population_growth
Population_growth_rate
Population_Histogram
Population_history_of_American_indigenous_peoples
Population_history_of_American_indigenous_peoples
Population_history_of_American_indigenous_peoples/Source
Population_I
Population_II
Population_III
Population_III_star
Population_III_stars
Population_III_stars
Population_II_star
Population_II_stars
Population_II_stars
Population_inversion
Population_inversion
Population_I_star
Population_I_stars
Population_I_stars
Population_mean
Population_Media_Center
Population_of_Atlanta
Population_of_Brazil
Population_of_British_Columbia_in_1800's
Population_of_England
Population_of_Finland
Population_of_India
Population_of_Metropolitan_Chicago
Population_of_Metropolitan_Chicago
Population_of_Paris
Population_of_Texas_cities_in_2000
Population_of_the_Byzantium_Empire
Population_of_the_United_States
Population_paradox
Population_parameter
Population_process
Population_process
Population_pyramid
Population_Registration_Act
Population_size
Population_statistics
Population_timebomb
Population_time_bomb
Population_transfer
Population_transfer
Population_transfers
Population_transfer_in_the_Soviet_Union
Population_viability_analysis