Species richness refers to the number of different species present in a community.

Species abundance refers to the relative number of individuals of each species in a community.

Species diversity encompasses both species richness and species abundance, providing a more comprehensive measure of community structure.

Predation, competition, and mutualism are all examples of species interactions that can influence the structure and dynamics of ecological communities.

Species distribution refers to the spatial arrangement of species within a community, including their abundance and location.

Climate, habitat type, and resource availability are all factors that can influence the species composition of a community.

Ecological niche, habitat specialization, and resource partitioning are all terms used to describe the process by which species adapt to different environmental conditions within a community.

Sea otters, African elephants, and monarch butterflies are all examples of keystone species, which play a disproportionately large role in maintaining the structure and function of their respective communities.

Community assembly, community dynamics, and succession are all terms used to describe the process by which species interactions can lead to changes in community structure over time.

Fire, flooding, and drought are all examples of disturbances that can affect community structure.

Succession is the process by which a community returns to its original state after a disturbance.

Glacial retreat is an example of a primary succession, where new communities are established on previously barren land.

Invasive species, alien species, and exotic species are all terms used to describe the process by which a community changes over time due to the introduction of new species.

Kudzu, zebra mussel, and lionfish are all examples of invasive species.

Conservation, restoration, and management are all terms used to describe the process by which humans modify and manage natural communities.