species eaten by nothing else in the food web
species that feed on nothing else in the food web
groups of organisms that have identical sets of predators and prey
when species "A" eats "B" and "B" eats "A"
a cycle in which a species feeds upon itself
species that feed on more than one trophic level in the web
different methods or locations of foraging within trophic levels
any feeding relationship - arrow connecting species
among s species in a food web, there can be s^2 possible interactions, including cannibalism
number of actual interactions divided by number of possible interactions
average number of links per species in the web
species with strong linkages among group members, but weak linkages to other groups of species.