Community Selection Theory
A specific mechanism within community evolution where the fitness of the entire group, not just individuals, becomes the primary unit of selection. Communities with traits that enhance cooperation, resource sharing, and collective defense outcompete or out-survive more selfish or disorganized groups, even if those traits come at a cost to individual members. The theory asks: do communities evolve because it benefits the individuals, or because some communities are simply better at persisting as wholes?
Example: Military units or firefighting crews operate under Community Selection Theory. The unit that drills for self-sacrifice and flawless coordination (a group-level trait) will survive a battle or fire where a group of individually talented but uncoordinated people would perish. The cohesive group is "selected for," even though the trait (readiness for sacrifice) lowers individual fitness.
Community Selection Theory by Dumuabzu February 5, 2026
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