(par 3. 4.1) Types of food pyramids
The Flow of Energy in Ecosystems – Productivity, Food Chain, and Trophic Level As was explained in the last subchapter, the flow of energy is an essential feature of every…
(par 3. 4.2) Ecosystem processes
Ecosystem processes affected by sunlight http://www.bcgrasslands.org/grasslands/ecosystemprocesses.htm Ecosystem Processes Energy Flow (from the sun through the system) is the “power” of the system. Water cycling and nutrient cycling are the movements…
(par 3. 4.2) Energy in Ecosystems
http://en.wikibooks.org/wiki/Ecology/Energy_in_ecosystems An example of the concept of energy flow through trophic levels of a food chain. There are several different factors that control the primary productivity of energy and biomass…