Unit 2 Flashcards
carrying capactiy
Carrying Capacity: the maximum population size of a species that the environment can sustain indefinitely, given the available resources such as food and water. The number of people that a region can support without environmental degradation.
5 major agglomerations
5 Major Agglomerations: Human populations are clustered, people live where it is most convenient.
overpopulation
Overpopulation: the number of people exceeds the capacity of the environment to support life at a decent standard of living.
demography
Demography: the scientific study of population characteristics.
cartogram
Cartogram: a map on which statistical information is shown in diagrammatic form.
census
Census: a complete enumeration of a population.
ecumene
Ecumene: the portion of Earth’s surface occupied by permanent human settlement.
non ecumene
Non-Ecumene:the portion of Earth’s surface which is not inhabited by humans.
arithmetic density
Arithmetic density: the total number of objects in an area.
population density
Population Density: the number of people living within an area.
population distribution
Population distribution: the share of inhabitants by types of regions in a given country.
arable land
Arable land: land suited for agriculture.
physiological density
Physiological density: the number of people per unit area of arable land.
agricultural density
Agricultural density: the ratio of the number of farmers to the amount of arable land.
natural increase rate (NIR)
Natural Increase Rate (NIR): the percentage by which a population grows in a year.
natural increase rate (NIR)
Natural Increase Rate (NIR): the percentage by which a population grows in a year.
doubling time
Doubling Time: the number of years needed to double a population, assuming a constant rate of natural increase.
population explosion
Population Explosion: the rapid increase of a number of people living in an area.
crude birth rate (CBR)
Crude Birth Rate (CBR): the total number of live births in a year for every 1,000 people alive in the society.
total fertility rate (TFR)
Total Fertility Rate (TFR): measures the number of births in a society.
infant mortality rate (IMR)
Infant Mortality Rate (IMR): the annual number of deaths of infants under one year of age, compared with total live births.
natality rate
Natality Rate: number of births per 1000 individuals per year.
demographic equation
Demographic Equation: the global difference between births and deaths.
demographic transition model
Demographic transition model: changes in the natural increase rate as a function of economic development.
demographic momentum
Demographic Momentum: death rates decline and the birth rates remain high.
crude death rate (CDR)
Crude Death Rate (CDR): the total number of deaths in a year for every 1,000 people alive in the society.
demographic transition
Demographic Transition: a process of change in a society’s population from high crude birth and death rates and low rate of natural increase to a condition of low crude birth and death rates, low rate of natural increase, and higher total population.
rust belt
Rust Belt: the region from New York to the Midwest that was once dominated by industrial manufacturing.
industial revolution
Industrial Revolution: a conjunction of major improvements in manufacturing goods and delivering them to market.
medical revolution
Medical Revolution: medical technology invented in Europe and North America that has diffused to the poorer countries in Latin America, Asia , and Africa. Improved medical practices have eliminated many of the traditional causes of death in poorer countries and enabled more people to live longer and healthier lives.
zero population growth (ZPG)
Zero Population Growth (ZPG): occurs when the CBR (crude birth rate) is still slightly higher than the CDR (crude death rate) because some females die before reaching childbearing years, and the number of females in their childbearing years can vary.
maternal mortality rate
Maternal mortality rate: the annual number of female deaths per 100,000 live births from any cause related to or aggravated by pregnancy.
age-sex distribution ratio
Age-sex distribution (ratio): shown on a population pynamids and shows the distribution of a country’s population between males and females of various ages.
sex ratio
Sex ratio: the number of males per 100 females in the population.
cohort
Cohort: each age-sex group.
population pyramids
Population Pyramids: useful tools to analyze and predict future population growth.