multiple issues cleanup April 2011 lead missing April 2011 orphan April 2011 The Great Plains Population and Environment Data Series The Great Plains Population and Environment Data Series ref http www.icpsr.umich.edu ... those data in order to understand the relationships between population and environment that existed ... and land use. Great Plains Population and Environment Data Social and Demographic Data, 1870 2000 ... The social and demographic data included in The Great Plains Population and Environment Data Series consist of a single data file for each decennial year between 1870 and 2000, covering 10 of the 12 ...?q great plains study&archive DSDR DSDR page for Great Plains Population and Environment Data Agricultural ... plains&archive DSDR DSDR page for Great Plains Population and Environment Data Social and Demographic ... of Michigan DEFAULTSORT Great Plains Population And Environment Data Series Category Demography ... of Saskatchewan , with consultants at other universities. Great Plains Population and Environment Data Agricultural Data, 1870 1997 United States ref http www.icpsr.umich.edu icpsrweb DSDR studies 4254?q great plains study&archive DSDR ref The agricultural data distributed here are all data about counties. The data falls into four broad categories about the counties, about agriculture ... Plains in a given year is embedded in each of the other data files, so that there will be three series of data agriculture, demographic and social conditions, and environment , containing individual data files for each year for which data are available. The United States Census of Agriculture has been ... 1982 . The agricultural data included in this collection consist of a single data file for each agricultural ... States Agricultural Census. The county level agricultural data produced by the United States ... of 1 Urban area urban , rural , and total population, 2 vital statistics, 3 net Human migration migration ..., 8 industry , and 9 housing and other characteristics. These data include selected material compiled ... more details
Summary Graph of Australian population by terroritory with data points from 1881 through 2000. Source cite web url http findarticles.com p articles mi m0PCG is 2002 Sept ai 105657372 pg 1 title Table 1 Distribution of population between states and territories, 1881 2000 accessdate 2007 06 17 year 2002 month 09 last Hugo first Graeme work Changing patterns of population distribution in Australia in Journal of Population Research pages 11 language English I am the creator of this graph, and I release any and all copyright claims, releasing it into the public domain. This graph was created with gnuplot. My commands file contained set terminal svg size 800 400 fname Arial fsize 20 enhanced set grid back lw 1 set border 3 set ytics nomirror set xtics nomirror set key outside Left reverse spacing 0.8 samplen 1 width 10 set ylabel Percentage of total population 0.6,0 set size ratio 0.8 Skipping linetype lt 4 it s cyan and not very dark against white backgrounds. plot data using 1 2 with lines lw 2 lt 1 title New South Wales , data using 1 3 with lines lw 2 lt 2 title Victoria , data using 1 4 with lines lw 2 lt 3 title Queensland , data using 1 5 with lines lw 2 lt 5 title South Australia , data using 1 6 with lines lw 2 lt 6 title Western Australia , data using 1 7 with lines lw 2 lt 7 title Tasmania , data using 1 8 with lines lw 2 lt 8 title Northern Territory , data using 1 9 with lines lw 2 lt 9 title Australian Capital Territory My data file contained http findarticles.com p articles mi m0PCG is 2002 Sept ai 105657372 pg 1 Changing patterns of population distribution in Australia Journal of Population Research, Sept, 2002 by Graeme Hugo p11 Table 1 Distribution of population between states and territories, 1881 2000 Territory New South Wales Victoria Queensland South Australia Western Australia Tasmania Northern Territory Australian Capital Territory 1881 33.3 38.3 9.5 12.3 1.3 5.1 0.2 0 1901 35.9 31.8 13.2 9.5 4.9 4.6 0.1 0 1921 38.6 28.2 13.9 9.1 6.1 3.9 0.1 0 1947 ... more details
du monde . French http stats.oecd.org wbos Index.aspx?QueryId 254 OECD populationdata http gsociology.icaap.org ...pp move indef Other uses File Population density.png thumb 350px Distribution of world population in 1994. File Population density key.png thumb 150px Key A population is all the organisms that both belong to the same group or species and live in the same geographical area . In ecology the population ... to define a sex sexual population is such that interbreeding inter breeding is possible between any ... Hartl first Daniel authorlink title Principles of Population Genetics publisher Sinauer Associates series year 2007 doi isbn 978 0 87893 308 2 page 45 ref In sociology , population refers to a collection .... This article refers mainly to human population. Population genetics In population genetics a sex sexual population is a set of organisms in which any pair of members can Breeding in the wild ... first Daniel authorlink title Principles of Population Genetics publisher Sinauer Associates series year 2007 doi isbn 978 0 87893 308 2 page 95 ref . World human population Main World population As of Date , the world population is estimated by the United States Census Bureau to be expr worldpop 1000000000 ... POPClock Projection ref Eurek Alert World Population to surpass 7 Billion in 2011. ref http www.eurekalert.org pub releases 2011 07 hsop wpt072711.php Eurek Alert World Population to surpass 7 Billion in 2011 28 Jul 2011 ref Earth s population will reach seven billion on 31 October, a milestone that offers ... Nations Population Fund. ref http www.unfpa.org public home news pid 8328Countdown to a World ... Bureau , the world population hit 6.5 billion 6,500,000,000 on 24 February 2006. The United Nations Population Fund designated 12 October 1999 as the approximate day on which world population reached 6 billion. This was about 12 years after world population reached 5 billion in 1987, and 6 years after world population reached 5.5 billion in 1993. The population of some countries, such as Nigeria ... more details
two other uses data in computer science Data computing pp move indef Editors please keep the count mass discussion and etymology in the body, not the intro. Data IPAc en icon d e t respell DAY t ... attributes of a variable mathematics variable or set of variables. Data are typically the results of measurements and can be the basis of graph data structure graph s, image s, or observations of a set of variables. Data are often viewed as the lowest level of abstraction from which information and then knowledge are derived. Raw data , i.e., unprocessed data, refers to a collection of number ... and a byte word of data storage. All data can be reduced to Attribute value pair key value pair combinations ... data structure s. They are also used in Peripheral peripheral devices. The word data is the plural ... givens and data are used interchangeably. Also, data are representations of a fact, figure, and idea. Citation needed date September 2011 Such usage is the origin of data as a concept in computer science data are numbers, words, images, etc., accepted as they stand. Usage in English In English ... specific Datum reference reference datum from which distances to all other data are measured. Any measurement or result is a datum , but data point is more usual, ref cite web author Matt Dye year ... usage in datum geodesy datum article and the originally Latin plural data are used as the plural of datum in English, but data is commonly treated as a mass noun and used with a verb in the Grammatical number singular form, especially in day to day usage. For example, This is all the data from the experiment ... the data from the experiment . Even when a very small quantity of data is referenced One number, for example the phrase piece of data is often used, as opposed to datum . The debate over appropriate ... January 2012 The IEEE Computer Society , allows usage of data as either a mass noun or plural based ... date December 2010 ref require that authors treat data as a plural noun. For example, the Air Force ... more details
otheruses Data disambiguation Debt, AIDS, Trade, Africa or DATA was a multinational Non governmental organization non government organization founded in January 2002 in London by U2 s Bono along with Robert Sargent Shriver III Bobby Shriver and activist s from the Jubilee 2000 Drop the Debt campaign. DATA was created for the purposes of obtaining social equality equality and justice for Africa through debt relief adjusting trade rules which burden Africa eliminating the AIDS in Africa African AIDS epidemic strengthening democracy furthering accountability by the wealthiest nations and African leaders and Transparency humanities transparency towards the people. In 2007, DATA and Bono were jointly awarded the National Constitution Center s 2007 Liberty Medal for their groundbreaking efforts to address the AIDS crisis and extreme poverty in Africa. Start up funds came from the Bill & Melinda Gates Foundation , financier George Soros , and technology entrepreneur Edward W. Scott . ref cite news url http www.time.com time printout 0,8816,1142270,00.html title The Constant Charmer author Josh Tyrangiel date 2005 12 19 work Time Magazine ref In 2007, DATA and the ONE Campaign decided to join forces, and in January 2008, they formally merged under the name ONE. ref cite news url http www.reuters.com article idUSN2953856520071029 title Bono s U.S. based anti poverty groups to merge author Lesley Wroughton date 2007 10 29 work Reuters ref DATA received support from the Christian rock Alternative rock bands Switchfoot and Third Day . References references External links http www.one.org ONE official site Category International nongovernmental organizations Category HIV AIDS in Africa Category Organizations founded by Bono int org stub de Debt, AIDS, Trade in Africa it DATA sv DATA f rening vi DATA ... more details
Population count may refer to A census , the process of obtaining information about every member of a population not necessarily a human population Hamming weight , the number of non zero entries 1 bits in a in a byte, string, word, array or other similar data structure disambig ... more details
Population projection , in the field of demography , is an estimate of a future population. In contrast with intercensal estimates and censuses, which usually involve some sort of field data gathering, projections usually involve mathematical models based only on pre existing data. A projection may be made by a governmental organization, or by those unaffiliated with a government. See also Census Unreferenced date November 2010 DEFAULTSORT Population Projection Category Demography statistics stub fr Projection d mographique kk lt Demografin prognoz ru ... more details
count. Between censuses, administrative data collected by various agencies about population events ... and migration data to adjust census counts for the changes that have happened since the census. Population ... of existing census data and other sources of population information to forecast the size of future populations. Because there are unknown factors that may affect future population changes, population projections often incorporate high and low as well as expected values for future populations. Population ...No footnotes date July 2011 Population statistics is the use of statistics to analyze characteristics or changes to a population. It is related to Social Demography social demography and demography . Population statistics can analyze anything from global demographic changes to local small scale changes. For example, an analysis of global change shows that population growth has slowed, infant mortality rates have declined and there have been small increases in the aged. Collection National population ... adjusted to produce census estimates that identify such statistics as resident population , residents ... s. Population estimates and projections Population estimates are usually derived from census and other administrative data. Population estimates are normally produced after the date the estimate is for. Some estimates, such as the Usually resident population estimate who usually lives in a locality ... with estimating population on a particular date that is different to the census date, for example ... were conducted in antiquity, there are few population statistics that survive. One example though ... to determine not only what was being counted but how and why it was done. Metadata Modern population ... their country s census results and other population statistics on their agency s website. See also Census Census Bureau , Census tract , Census block group , Census block . Intercensal estimate Population ... Population country lists Category Demography Category Population ... more details
coarseness of the populationdata, depending on population density patterns or other factors. For instance, the center of population of all the cities in a country may be different from the center of population of all the states or provinces, or other subdivisions in the same country. Different methods may yield different results. Practical uses for finding the center of population include locating ... of population will depend on both the granularity of the populationdata used, and the distance ... www.stat.go.jp data kokusei topics topics22.htm Our Country s Center of Population ref More ... 15000 km sp us . The data used by this figure is lumped at the country level, and is therefore precise to only a few hundred kilometers. In demographics , the center of population or population center of a region is a geographical point that describes a centerpoint of the region s population. There are several ... pages 275 279 chapter The population center of Canada Just north of Toronto? ? ref Definitions Three ..., or centroid, is the point on which a rigid, weightless map would balance perfectly, if the population ... the population has the smallest possible sum of squared distances . It is easily found by taking ... does not minimize the average distance to the population. That property belongs to the geometric ... of which divides the population into two equal halves. Typically these two lines are chosen to be a circle ... . In that case, this center is easily found by taking separately the median s of the population s latitude and longitude coordinates. Geometric median The geometric median is the point to which the population ... selection of a new site for a capital is a complex problem that depends also on population density ... The unequal distribution of population and wealth in the world journal Population Et Soci t S year ... us , meaning that two population centers within 1000 km of each other are treated as part of a larger common population center of intermediate location, the world s center of population is found ... more details
Population structure may refer to many aspects of population ecology Population stratification Population pyramid Age class structure F statistics Population density Population distribution Population dynamics and population growth Population genetics Population size disambig ... more details
Wikify date April 2010 Orphan date November 2006 In flow cytometry , a side population SP is a sub population of cells that is distinct from the main population on the basis of the markers employed. By definition, cells in a side population have distinguishing biological characteristics for example, they may exhibit stem cell like characteristics , but the exact nature of this distinction depends on the markers used in identifying the side population. Side populations have been identified in cancer and may be the cells that efflux chemotherapy drugs, account for resistance of cancer to chemotherapy. Recent studies on testicular stem cells indicate that more than 40 of the SP defined in this case as cells that show higher efflux of DNA binding dye Hoechst 33342 was undifferentiated spermatogonia, while other differentiated fractions were represented by only 0.2 . ref name pmid18371438 SP cells can rapidly efflux lipophilic fluorescent dyes to produce a characteristic profile based on fluorescence activated flow cytometric analysis. Previous studies have demonstrated SP cells in bone marrow obtained from patients with acute myeloid leukemia, suggesting that these cells might be candidate leukemic stem cells, and recent studies have found a SP of tumor progenitor cells in human solid tumors. These new data indicate that the ability of malignant SP cells to expel anticancer drugs may directly improve their survival and sustain their clonogenicity during exposure to cytostatic drugs, allowing disease recurrence when therapy is withdrawn. Identification of a tumor progenitor population with intrinsic mechanisms for cytostatic drug resistance might also provide clues for improved therapeutic intervention. cite journal author Takubo K, Ohmura M, Azuma M, Nagamatsu G, Yamada W, Arai F, Hirao A, Suda T title Stem cell defects in ATM deficient undifferentiated spermatogonia through DNA damage induced cell cycle arrest journal Cell Stem Cell. volume 2 issue 2 pages 170 82 year 2008 ... more details
ipc www idb worldpopinfo.php title International Data Base IDB World Population publisher Census.gov ... 2009 World PopulationData Sheet place Washington, DC publisher Population Reference Bureau url ... to data from the CIA s 2005 2006 The World Factbook World Factbooks , the world human population ...File World Population 1800 2100.png thumb 300px World population estimates from 1800 to 2100, based on http www.un.org esa population publications longrange2 WorldPop2300final.pdf UN 2004 projections span ... population is the totality of all living human s on the planet Earth . As of today, CURRENTMONTHNAME ... population popclockworld.html title U.S. Census Bureau World POPClock Projection accessdate 2011 ... . ref name UN7bn cite news url http www.bbc.co.uk news world 15459643 title Population seven ... population has experienced population growth continuous growth since the end of the Great Famine ... Jean No l Biraben, 1980, An Essay Concerning Mankind s Evolution , Population, Selected Papers, Vol ... hommes , Population, Vol. 34 no. 1 , pp. 13 25. ref The highest rates of growth global increases ... births were highest in the late 1980s at about 138 million, ref UN World Population Prospects, the 2010 Revision http esa.un.org unpd wpp Excel Data DB01 Period Indicators WPP2010 DB1 F04 BIRTHS ... to increase to 80 million per year by 2040. ref cite web url http www.census.gov population international data idb region.php?N 20Region 20Results 20&T 7&A aggregate&RT 0&Y 2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022,2023,2024,2025,2026,2027,2028,2029,2030,2031,2032,2033,2034,2035,2036,2037,2038,2039,2040 ... 1&C title World Population estimates by the US Census Bureau ref Current projections show a continued increase in population but a steady decline in the population growth rate , with the global population expected to reach between 7.5 and 10.5 billion by 2050. ref cite web url http www.worldometers.info population title World Population Clock Worldometers ... 90 colspan 5 align center style background color cfb World population millions ref name IEApop2011 ... more details
Population ecology is a sub field of ecology that deals with the dynamics of species population s and how ... 554879 page 546 p ref It is the study of how the population size s of species living together in groups change over time and space. The development of population ecology owes much to demography and actuary actuarial life table s. Population ecology is important in conservation biology , especially in the development of population viability analysis PVA which makes it possible to predict the long ... population ecology is a subfield of biology , it provides interesting problems for mathematics mathematicians and statistics statisticians who work in population dynamics . Fundamentals class wikitable ... Definition valign top Species population All individuals of a species. valign top Metapopulation A set of spatially disjunct populations, among which there is some immigration. valign top Population ..., usually with some degree of spatial isolation as well. valign top Local population A group of individuals ... within a population as defined above . A local population could be a disjunct population as well. valign top Subpopulation An arbitrary spatially delimited subset of individuals from within a population as defined above . One of the first laws of population ecology is the Thomas Malthus exponential law of population growth... ref name Turchin01 Cite journal last Turchin first P. title Does Population ... j.1600 0706.2001.11310.x postscript None ref blockquote A population will grow or decline exponentially as long as the environment experienced by all individuals in the population remains constant. ref name Turchin01 rp 18 blockquote This principle in population ecology provides the basis for formulating predictive theories and tests that follow. Simplified population models usually start with four ... changes in population demographics and evolution hold the assumption or null hypothesis of no external ... are simultaneously confronted with the data. ref name Johnson04 Cite journal last Johnson first ... more details
some role in population decline however, data available suggests that, even with high AIDS mortality ... ref http www.prb.org pdf07 07WPDS Eng.pdf 2007 World PopulationData Sheet ref Main reason for decrease ... of data collection. Hungary Hungary s population peaked in 1980 at 10,709,000, ref http portal.ksh.hu ...Population decline can refer to the decline in population of any organism, but this article refers to population ... population. ref http www.m w.com dictionary depopulation Depopulate Webster s Online Dictionary ref ... commonly employed to describe large reductions in population due to violence, disease, or other ... Sometimes known as depopulation , population decline is the reduction over time in a region ... depopulations. Prior to the 20th century, population decline was mostly observed due to disease, starvation ... Great Irish Famine have all caused sizable population declines. In modern times, the AIDS epidemic has caused declines in the population of some African countries. Less frequently, population declines are caused by genocide or mass execution for example, in the 1970s, the population of Cambodia underwent ... capacity, and is not a term in opposition to overpopulation , which deals with the total possible population ... is usually defined as a state in which a country s population has declined too much to support ... developed countries might fail once the population declines to a certain point. An example would be if retirees ... Population crises and cycles in history . A review of the book Population Crises and Population ... reports by the United Nations Population Division ref cite web url http www.un.org esa population publications wpp2002 WPP2002 HIGHLIGHTSrev1.PDF format PDF title World Population Prospects The 2002 Revision publisher United Nations Population Division ref and the United States Census Bureau US Census Bureau , ref cite web url http www.census.gov ipc www wp02.html title Global Population Profile 2002 publisher US Census Bureau ref population decline is occurring today in some regions. According ... more details
population international data idb informationGateway.php, U.S. Census Bureau, International Database ... Population Projections, Population Pyramids http populationpyramid.net, United Nations Data Set ... population pyramids of metropolitan France 1901 2060 INSEE http www.china profile.com data ani ceu ... tool post sfew vpost?id 1579036 A discussion on population pyramids as a data visualization tool Population ...More footnotes date February 2010 refimprove date February 2011 Image Population pyramid 1 triangle .PNG 250px right thumb This distribution is named for the frequently pyramidal shape of its graph. A population ... of various age groups in a population typically that of a country or region of the world , which forms the shape of a pyramid when the population is growing. It is also used in Ecology to determine the overall age distribution of a population an indication of the reproductive capabilities ... graphs, with the population plotted on the X axis and age on the Y axis, one showing the number of males and one showing females in a particular population in five year age groups also called Cohort ... be measured by raw number or as a percent age of the total population. Population pyramids are often viewed as the most effective way to graphically depict the age and sex distribution of a population ... about the population broken down by age and sex can be read from a population pyramid, and this can shed light on the Sustainable development extent of development and other aspects of the population. A population pyramid also tells how many people of each age range live in the area. There tends .... A helpful analogy to facilitate understanding population pyramids is that just as a builder employs a blueprint for showing a house s structure, demographers and geographers employ population pyramids as a blueprint for showing population dynamics. ref http www.nationalgeographic.com xpeditions lessons 09 g68 pyramids.html Lesson Plans Population Pyramids and Us Bot generated title ref Types of population ... more details
Merge Community health talk Population health merge community health date September 2009 Population health ... What is population health? American Journal of Public Health 2003 Mar 93 3 380 3. Retrieved 2008 10 12. ref It 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 ... a broad range of factors that impact health on a population level, such as environment, social structure, resource distribution, etc. An important theme in population health is importance of social ... health overall. From a population health perspective, health has been defined not simply ... hiatp2.php Health Impact Assessment as a Tool for Population Health Promotion and Public Policy. Vancouver ... and general population health ref sci amer dec 2005 suggesting that past a certain level, absolute levels of wealth have little impact on population health, but relative levels within a country ... planning programs including Birth control contraceptives play a major role in population health. For example ... Protecting the environment by stabilizing population growth Population health management PHM One method to improve population health is population health management PHM , which has been defined as the technical ... Spence. http www.healthways.com assets 0 98 E4CDDEDB 5004 4E74 A5C9 E1973F5ABC05.pdf Population ... 3 196 207. Retrieved 2009 01 09. ref Many PHM related articles are published in Population Health Management .... http www.dmaa.org pubs dm journal.asp Publications. Population Health Management. Retrieved ... disparities Health Impact Assessment Inequality in disease List of countries by income equality Population ... journal title Global and regional burden of disease and risk factors, 2001 systematic analysis of population health data journal Lancet volume 367 issue 9524 pages 1747 1757 date May 27, 2006 url http ... grad Population Health MS and PhD Graduate Programs MS and PhD Graduate Programs in Population ... more details
is less prevalent in the population where the case subjects are chosen. For this reason, it was common in the 1990s to use family based data where the effect of population stratification can easily ...Population stratification is the presence of a systematic difference in allele Allele frequency frequencies between subpopulations in a population possibly due to different Ancestor ancestry , especially in the context of association studies. Population stratification is also referred to as population structure, in this context. Causes of population stratification The basic cause of population stratification ... e.g., in Europe , population structure is best modeled by isolation by distance, in which allele frequencies tend to vary smoothly with location. Population stratification and association studies Population stratification can be a problem for association studies, such as case control studies, where the association found could be due to the underlying structure of the population and not a disease ... in the association studies and thus compensate for any population bias. Most contemporary genome wide association studies take the view that the problem of population stratification is manageable ... markers to detect population stratification in association studies. American Journal of Human Genetics ... and control for population structure. Currently, the most widely used structured association method ... wide association. Nature Genetics 38 904 909 ref . Genomic Control The assumption of population ... to compensate for the population structure. The problem in case control studies is that if there is a genetic involvement in the disease, the case population is more likely to be related than the individuals in the control population. This means that the assumption of independence of observations ... you will find association with any trait more prevalent in the case population ref Lander, E ... . This kind of spurious association increases as the sample population grows so the problem should be of special ... more details
estimate shown is automatically calculated daily at 00 00 UTC and is based on data obtained from the population ...Image Population curve.svg thumb 360px Estimated size of human population from 10,000 Common Era BCE 2000 CE. Population growth is the change in a population over time, and can be quantified as the change in the number of individuals of any species in a population using per unit time for measurement. In biology , the term population growth is likely to refer to any known organism , but this article deals mostly with the application of the term to human populations in demography . In demography, population growth is used informally for the more specific term population growth rate see below , and is often used to refer specifically to the growth of the human World populationpopulation of the world . Simple models of population growth include the Malthusian Growth Model and the logistic function logistic model . Population growth 1800 2011 from 1 billion to 7 billion estimated in 31.10.2011 ... 4 align center style background color cfb Population ref name hesa2011 7. miljardis ihminen, Helsingin ... 6 align left 2011 align right 7 align left colspan 2 small UNFPA br United Nations Population Fund ... people will increase the world population. Determinants of population growth Population growth is determined ... expressed as big P B D I E big In other words, the population growth of a period can be calculated in two parts, natural growth of population B D and mechanical growth of population I E ,in which Mechanical growth of population is mainly affected by social factors, e.g. the advanced economies are growing faster while the backward economies are growing slowly even with negative growth. Population growth rate In demographics and ecology , population growth rate PGR is the Rate mathematics rate at which the number of individuals in a population increases in a given time period as a Fraction mathematics fraction of the initial population. Specifically, PGR ordinarily refers to the change in population ... more details
Wiktionary Population may refer to Population human populations List of countries by populationPopulation biology , the biological study of animal populations Statistical population Metallicity , star populations Population album , an album by The Most Serene Republic Population control See also People disambiguation disambig an Poblaci n de Population es Poblaci n desambiguaci n eu Populazio argipena hr Populacija it Popolazione disambigua lv Popul cija nl Populatie pl Populacja ro Popula ie dezambiguizare sk Popul cia sv Population olika betydelser ... more details
main article effective population size In population genetics an idealised population , also sometimes called a Fisher Wright population after Ronald Fisher R.A. Fisher and Sewall Wright , is a population whose members can Sexual intercourse mate and reproduce with any other member of the other gender, has a sex ratio of 1 and no overlapping generations. As such, each individual has the same chance to contribute its own genetic material to the next generation no selection . Deviation from the idealised population results in the effective population size being smaller than the total population size. evolution stub statistics stub Category Population genetics Category Statistical genetics ... more details
The term population reduction may be used in relation to many topics, including the following population decline or depopulation reductions in human population levels for reasons such as low birth rate, emigration, disease or war. population control deliberate attempts to control human population levels typically seeking an initial reduction as opposed to an increase , sometimes related to the Optimum Population concept. culling deliberate reductions in animal or plant population levels, by human action population reduction the phase preceding the extinction of a species the Population reduction theory a theory involving genocide disambiguation ... more details
refimprove date November 2011 Population momentum refers to population growth at the national level which ..., Heuveline, and Guillot 2001 Demography Measuring and Modeling Population Processes ref For countries with above replacement fertility greater than 2.1 children per woman , population momentum represents natural increase to the population. For below replacement countries, momentum corresponds to a population ... currently bearing children, which impacts the immediate birth and death rates in the population which determine the intrinsic rate of growth. Formal demographers refer to population momentum as the size of the resulting stationary equivalent population relative to the current size of the population. Population momentum has implications for population policy for a number of reasons. First with respect to high fertility countries in the developing world , population momentum instructs us that these countries ... population decline even if they bring their fertility levels up to replacement. In fact, population ..., for example, some Eastern European countries would show population shrinkage even if their birth rates recovered to replacement level. Finally, population momentum shows us that replacement level fertility is a long term concept rather than an indication of current population growth rates. Depending ... short term growth or decline. Calculation To calculate population momentum for population A, a theoretical population is constructed in which the birth rate for population A immediately becomes replacement level. Under such conditions, the population will eventually stabilize into a stationary population, with no year to year changes in age specific rates or in total population. The population momentum is calculated by dividing this final total population number by the starting population. ref Preston, Heuveline, and Guillot 2001 Demography Measuring and Modeling Population Processes, 165 ref Countries with a Population momentum The following list are countries that maintain growth despite ... more details
Population genomics is the large scale comparison of DNA sequences of populations. Population genomics is a neologism that is associated with population genetics . See also Genomics Personal genomics Population groups in biomedicine References http hmg.oxfordjournals.org cgi content full 10 20 2199 Population genomics a bridge from evolutionary history to genetic medicine http arjournals.annualreviews.org doi abs 10.1146 annurev.ento.46.1.441 POPULATION GENOMICS Genome Wide Sampling of Insect Populations Category Genomics genetics stub ko ... more details
Unreferenced stub auto yes date December 2009 In population genetics and population ecology , population size usually denoted N is the number of individual organism s in a population . The effective population size N sub e sub is defined as the number of breeding individuals in an idealized population that would show the same amount of dispersion of allele frequencies under random genetic drift or the same amount of inbreeding as the population under consideration. N sub e sub is usually less than N the absolute population size and this has important applications in conservation genetics . Small population size results in increased genetic drift . Population bottleneck s are when population size reduces for a short period of time. Overpopulation may indicate any case in which the population of any species of animal may exceed the carrying capacity of its ecological niche . See also Holocene extinction event Population growth rate Overpopulation Carrying capacity Ecology stub modelling ecosystems expanded other DEFAULTSORT Population Size Category Ecological metrics Category Population genetics cs Po et obyvatel de Einwohnerzahl et Rahvaarv is Stofnst r ru sk Po et obyvate ov fi Populaatiokoko ... more details
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