DTM.4:4.3 - Find what can maintain the variant

Find admissible stationary or recurring regimes and determine their relevant stability. Retain coexistence, oscillation or continued replacement if the model supports those forms; persistence need not mean a constant population share.

Where reinforcement or compatibility matters, examine finite initial amounts as well as rarity. A rare variant can decline while a sufficiently established variant persists. In that case, identify what separates the continuations and whether the proposed action can cross that boundary.

Use analytical reasoning, validated numerical calculation or a justified qualitative argument at the formality needed by the decision. A solver’s last point alone is not evidence of an attracting regime; check the event law, feasible region and behavior under relevant nearby conditions.