Unit 5 Vocabulary

define population growth

• the increase in the number of people in a population or dispersed group

• the total number of live human births per 1,000 population for a given period divided by the length of the period in years

• a measure of the number of deaths in a particular population, scaled to the size of that population, per unit of time

• measures its change from one period to another (month, quarter, year)

define birth rate

• measures its change from one period to another (month, quarter, year).

• the maximum reproductive capacity of an organism under optimum environmental conditions

• the total number of live human births per 1,000 population for a given period divided by the length of the period in years.

• the number of people, other living organisms, or crops that a region can support without environmental degradation.

define death rate

• the number of people, other living organisms, or crops that a region can support without environmental degradation.

• the act of leaving one's own country to settle permanently in another; moving abroad.

• the action of coming to live permanently in a foreign country.

• the ratio of deaths to the population of a particular area or during a particular period of time, usually calculated as the number of deaths per one thousand people per year.

define immigration

• the action of coming to live permanently in a foreign country.

• the relative capacity of a species to reproduce itself under optimum conditions.

• the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects.

• occurs when human demand exceeds the regenerative capacity of a natural ecosystem

define emigration

• meeting the needs of the present without compromising the ability of future generations to meet their own needs

• the average interval between the birth of an individual and the birth of its offspring

• the concentration of human populations into discrete areas

• an animal leaves its home because the habitat is no longer ideal for them and they need to find a more suitable environment.

The rate, or speed, at which the number of organisms in a population increases

• growth rate

• death rate

• birth rate

• overshoot

the relative capacity of a species to reproduce itself under optimum conditions

• Biotic Potential

• generation time

• reproductive potential

• overshoot

shows the numbers or percentages of males and females in each age group

• population pyramid

• carrying capacity

• exponential growth

• overshoot

any force that affects the size of a population of living things in response to the density of the population

• Migration

• Density Independent

• Density Dependent

• Urbanization

the introduction of harmful materials into the environment.

• Industrial Revolution

• Pollution

• Urbanization

• Sustainability