Growth-form and Structure
In a community the number of species and size of their populations vary greatly. A community may have one or several species. The environmental factors determine the characteristic of the community as well as the pattern of organisation of the members in the community, the characteristic pattern of the community is termed structure which is reflected in the roles played by various populations, their range, the type of area they inhabit, the diversity of species in the community and the spectrum of interactions between them. As a result the structure of community is as follows:
1) Dominance
2) Species diversity
3) Mutual interrelationship among individuals of a community
4) Trophic structure