Community structure refers to the spatial arrangement and distribution of species within a community, including their abundance, diversity, and interactions.

Species abundance is a measure of the number of individuals of each species in a community, while species richness, evenness, and composition are all measures of species diversity.

The ecological niche of a species describes its functional role and position within a community, including its interactions with other species and its use of resources.

Mutualism is a type of symbiotic relationship in which both species benefit from the interaction, while competition, predation, and parasitism are all types of antagonistic interactions.

Stratification refers to the vertical arrangement of species within a community, often based on their adaptations to different environmental conditions.

Human activities are not a natural factor that influences community structure, while climate, habitat type, and species interactions are all natural factors that can shape community structure.

Resource partitioning is the process by which species adapt to different environmental conditions within a community by utilizing different resources or occupying different niches.

Climax community is not a type of ecological succession, but rather the final stage of succession in which a community reaches a state of equilibrium with its environment.

Ecological succession is the process by which a community changes over time, often in response to changes in environmental conditions or disturbances.

Human activities are not a natural type of disturbance that can affect community structure, while fire, flooding, and drought are all natural disturbances that can shape community structure.

Community dynamics is the term used to describe the process by which species interact with each other and their environment, including competition, predation, mutualism, and other types of interactions.

Mutualism is not a type of trophic interaction, as it does not involve the transfer of energy or nutrients from one organism to another.

Dispersal is the process by which species move from one community to another, often in search of new resources or mates.

Species interactions are not a factor that directly influences species dispersal, while habitat connectivity, climate change, and human activities can all affect dispersal rates.

Colonization is the process by which new species are added to a community, often through dispersal from other communities.