Population Biotic Community

A. Stratification
B. Dominance
C. Physiognomy
D. Diversity

A. Low abundance, little influence
B. High abundance, little influence
C. Low abundance, high influence
D. High abundance, high influence

A. Keystone species
B. Edge species
C. Critical link species
D. Edaphic pod species

A. Biomass
B. Abundance
C. Density
D. Frequency

A. Abundance
B. Density
C. Frequency
D. Phenology

A. Diatoms
B. Ferns
C. Mosses
D. Lichens

A. Lithophytic
B. Xerophytic
C. Mesophytic
D. Hydrophytic

A. Potantilla
B. Zizyphus
C. Umbilicaria
D. Grimmia

A. Ecosystem
B. Climatic community
C. Ecotons
D. Seral community

A. Lichens-mosses-annual herbs-wood shrubs
B. Annual herb-weedy shrubs-lichens-mosses
C. Woody shrubs-mosses-lichens-annual herbs
D. Mosses-annual herbs-woody shrubs-lichens