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Env Science Week 3

Week 3 Vocabulary for Environmental Science

population dynamics the study of factors that affect the three phases of a population's life cycle (growth, stability, decline)
equilibrium when there are equal numbers of births and deaths in a population
population explosion rapid, exponential growth of a population; represented by a J-curve
biotic potential when all of the individuals ever born in a population grow to adulthood and reproduce the maximum number of times
limiting factors environmental resistance; a combination of the living & nonliving factors that may limit or stop a population's growth
carrying capacity greatest number of individuals that can be sustained or supported by an area without the ecosystem breaking down
extinction when all of the individuals in a group die
overkill shooting, trapping, or hunting a species (often for sport or economic reasons) that results in a rapid decrease in the population's numbers
secondary extinction when the death of one species causes the decline of another species (i.e. loss of bamboo causes panda population to decline)
minimum viable population smallest population size that can avoid an extinction by environmental or genetic factors
geographic range total area occupied by a species
biodiversity all of the different living organisms in an area (variety of life)
Created by: jodytwining