An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Concept Breadcrumbs

Preferred Term:

secondary productivity

The amount of carbon incorporated by heterotrophs (animals, saprophytes, herbivores, etc.) from organic matter (food) per unit area over time.
Concept Schemes:
Entry Terms:
  • secondary production (ecology)
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2015-09-01