Community Structure

Trophic structures are the feeding relationships that include predator-prey, parasite-host and plant-herbivore relationships. Trophic levels are the links in trophic structures that reflect the main energy source of organisms.

A food chain shows a linear flow chart of the transfer of energy between specific organisms. More than one of these makes up a more expanded food web.

Biomass is the total weight of all members in a population. Dominant species, usually producers, have the highest biomass.