Keyword Analysis & Research: production definition ecology

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What is the definition of productivity in ecology?

Productivity (ecology) In ecology, productivity refers to the rate of generation of biomass in an ecosystem. It is usually expressed in units of mass per unit surface (or volume) per unit time, for instance grams per square metre per day (g m −2 d −1). The mass unit may relate to dry matter or to the mass of carbon generated.

Why is secondary production often associated with ecosystem ecology?

Secondary production is often associated with the subfield of ecosystem ecology because it is a flux with dimensions of mass or energy area -2 time -1. This flux is typically estimated with an ecological currency (e.g., joules, carbon, organic matter) that can be compared with other ecosystem processes such as primary production or decomposition.

What is secondary production?

Secondary production is the generation of new heterotrophic biomass and is analogous to net primary production of autotrophs. For an individual, secondary production is equivalent to the growth of new somatic or reproductive biomass over time.

What is production efficiency of an ecosystem?

Production Efficiency. Between the energy spent to pass energy between trophic levels, the natural energy lost from decay, and the material not consumed, the majority of potential energy in an organism will not be passed into the next trophic level. Still, some ecosystems are more efficient than others.

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