'Shorter food' presentation slideshows

Teacher Information!

314 views • 16 slides

Teacher Information!

241 views • 16 slides

Ecosystem Productivity

Ecosystem Productivity. Principles of Ecology. Primary productivity . The rate at which producers capture & store energy in their tissues Gross = total Net = after respiration The most productive ecosystems in the world ? estuaries, swamps, marshes, tropical rain forest.

861 views • 13 slides

Food Chains and Biomass Pyramids on Rangelands

Food Chains and Biomass Pyramids on Rangelands. J. Peterson. USDA-ARS. Trophic Levels. Feeding levels with respect to primary source of energy Producers & consumers each occupy a different trophic level Energy is lost at each level. Trophic Levels. Heat. Heat. Decomposer.

294 views • 10 slides