number of individuals per unit area
movement of individuals into an area p=occupied by an existing population
movement of individuals out of an area
growth pattern in whic the individuals in a population reproduce at a constant rate
growth pattern in which a population's growth rate slows or stops following a period of exponential growth
largest number of individuals of a population that a given environment can support
factor that causes the growth of a population to decrease
density-dependent limiting factor
limiting factor that depends on population size
mechanism of population control in which a population is regulated by predation
limiting factor that affects all populations in similar ways, regardless of size
graph of the number of males and females within different age groups of a population
resource that can regenerate quickly and is replaceable
resource that cannot be replenished by natural processes
using natural resources at a rate that does not deplete them
wearing away of surface soil by water and wind
in areas with dry climates, a process caused by a combination of poor farming practices, overgrazing, and drought that turns productive land into desert
destruction of forests
rain containing nitric and sulfuric acids
natural situation in which heat is retained in earths atmosphere by carbon dioxide, methane, water vapor, and other gases
biological diversity, the sum total of the variety of organisms in the biosphere
species whose population size is rapidly declining and will become extinct if the trend continues
increasing concentration of a harmful substance in organisms at higher tropic levels in a food chain or web.
plants and animals that have migrated to places where they are not native
wise management of natural resources including the preservation of wildlife and habitats
atmospheric layer in which ozone gas is relatively concentrated
increase in the average temperatures on earth
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