The proportion of individuals of different ages within a population. You can use an age distribution to estimat survival by calculating the difference in proportion of individuals in succeeding age classes.
the development of farming
Arithmetic Population Density
The total number of people divided by the total land area.
the amount of people an area can support
A complete enumeration of a population.
Child Mortality Rate
A figure that describes the number of children that die between the first and fifth years of their lives in a given population.
Generally long - lasting afflictions now more common because of higher life expectancies.
Crude Birth Rate (CBR)
The number of live births yearly per 1,000 people in a population. (natality)
Crude Death Rate (CDR)
The number of deaths yearly per 1,000 people in a population.
NIR = CBR - CDR
is the tendency for growing population to continue growing after a fertility decline because of their young age distribution. This is important because once this happens a country moves to a different stage in the demographic transition model.
High birth rates and death rates are followed by plunging death rates, producing a huge net population gain, this is followed by the convergence of birth rates and death rates at a low overall level.
Demographic Transition model:
the steps through which a society progresses.
the scientific study of population characteristics
the number of people who can't work
How disease spreads in a population. Hierarchical diffusion spreads from urban to rural areas. Contagious is spread through the density of people.
Maps where one dot represents a certain number of phenomenon such as population.
the time it takes for an area's population to double
the area of land occupied by humans
The a distinctive cause of death in each stage of the demographic transition. Explains how countries' population changes.
Eugenic Population Policies
Government policies designed to favor one racial sector over others.
Expansive Popluation Policies
Government policies that encourage large families and raise the rate of population growth.
growth by a percentile instead of a static number
Infant Mortality Rate
The total number of deaths in a year among infants under one year old for every 1000 live births in a society.
The shape of a line graph of population graph when growth is exponential.
A figure indicating how long, on average, a person may be expected to live.
British economist of late 1700's. considered the first to predict a population crisis.
the leap of medical knowledge in stage 2
1) Term used to designate large coalescing supercities that are forming in diverse parts of the world. 2)
the rate at which people die
natality rate (NIR)
number of birth/ year to every 1000 people in the population
Population growth measured as the excess of live births over deaths; does not reflect either emigrant or immigrant movements.
Natural increase rate (NIR)
CBR - CDR = NIR
group who built on Malthus' theory and suggested that people wouldn't just starve for lack of food, but would have wars about food and other scarce resources.
too many people in one place for the resources available
people supported by land / land area
Physiological Population Density
The number of people per unit of area of arable land, which is land suitable for agriculture.
Structure of population in terms of age, sex and other properties such as marital status and education.
A measurement of the number of people per given unit of land.
Description of locations on Earth's surface where populations live.
The rapid growth of the world's human population during the past century, attended by ever- shorter doubling times and sccelerating rates of increase. 2) the sudden increase of population caused by the plummeting CDR in stage 2
Estimation of future population growth, by extrapoliting from current trends and known growth factors.
A bar graph representing the distribution of population by age and sex.
Restrictive Popluation Policies
Government policies designed to reduce the rate of natural increase.
the ratio of men to women
Standard of living
The goods a services and their distribution within a population
Stationary Population Level
The level at which a national population ceases to grow.
The level of development that can be maintained without depleting resources.
Total Fertility rate
the average number of children a woman has
A drop or decrease in a region's population.
Zero population growth (ZPG)
Where natural birth rate declines to equal crude birth rate and the natural rate of population approaches 0.
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