a. Species Diversity: It is the single biggest characteristic that makes the community stable due to occurrence of large number of niches.
b. Network species: Most of the species are related to one another through food web.
c. Keystone species: They are the species with low abundance and biomass that provide the food during periods of scarcity.
d. Critical link species: They support network species as pollinators, dispersal agents, obtaining inorganic nutrients from organic matter etc.
e. Other characteristics: There is stratification, dominant species and particular physiognomy.