(ecology) A quantitative attribute of an ecosystem, defined as a function of the ecosystem's trophic network, and intended to indicate its ability to prevail against disturbance by virtue of its combined organization and size.
Alternative spelling of coevolution [(ecology, evolutionary theory) The evolution of organisms of two or more species in which each adapts to changes in the other.]
(uncountable) The state of organisms preceding their death, characterized by biological processes such as metabolism and reproduction and distinguishing them from inanimate objects; the state of being alive and living.
Small-scale changes in the history of life, such as changes in allele frequencies in a population (over a few generations); also known as change at or below the species level.
(taxonomy) Someone whose profession is taxonomy, or who performs taxonomy at a professional level.
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