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APES Ch14Vocab Lytle

Lytle - APES Ch 14 Vocab

QuestionAnswer
catch per unit effort The number of animals caught per unit of effort, such as the number of fish caught by fishing ship per day. It is used to estimate the population abundance of a species.
global extinction Occurs when a species can no longer be found anywhere on Earth.
historical range of variation The known range of an environmental variable such a the abundance o a species or the depth of a lake, over some past time interval..
local extinction The disappearance of a species from part of its range, but continued persistence elsewhere.
logistic carrying capacity In terms of the logistic curve, the population size at which births equal deaths and there is no net change in the population.
maximum sustainable yield The maximum usable production of a biological resource that can be obtained in a specified time period without decreasing the ability of the population to sustain that level of production.
minimum viable population The minimum number of individuals that have a reasonable chance of persisting for a specified time period
optimum sustainable population The population that is in some way best for the population, its ecological community, its ecosystem, or the biosphere.
time series The set of estimates of some variable over a number of years
Created by: jdlytle