A THEORY OF FAUNAL BUILDUP FOR COMPETITION COMMUNITIES

Invasion‐structured communities have more species than do coevolution‐structured communities assembled using the same resource distribution. Species in invasion‐structured communities are tightly packed, occupying the upper portion of the resource axis; species in coevolution‐structured communities are more widely spaced, and most are located in the lower portion of the resource axis. As a consequence, coevolution‐structured communities tend to be more stable than comparable invasion‐structured communities, but more open to invasion.

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