Plants, animals, even entire ecosystems are disappearing from the Earth. So what? In "What Is Nature Worth?", the University of Minnesota's Institute on the Environment offers a three-minute look at what biodiversity loss is really costing us -- and what we can do about it.
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Alex E

Ecoclimax is defined by Odum (1969) as the culmination state after a succession in a stabilized ecosystem in which maximum biomass (or high information content) and symbiotic function among organisms is kept per unit of available energy flow.