r selection

selection occurring when a population is far below the carrying capacity of an unstable environment: tends to favor individuals that reproduce early, quickly, and in large numbers so as to make use of ephemeral resources and ensure that at least some offspring survive.
Also, r-selection [ahr-si-lek-shuhn] .
Compare K selection.

r-selected [ahr-si-lek-tid] , adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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