Disturbance severity determines which regeneration strategy dominates recovery.

Evidence

The severity of disturbance determines which of these strategies is most likely to succeed. A mild disturbance, e.g., windthrow of just the canopy trees, probably favors the suppressed sapling strategy. A more severe disturbance may eliminate suppressed saplings but leave the soil intact and favor species such as pin cherry (Prunus pensylvanica), which are well represented in the seed pool (Marks, 1974). A disturbance that is both very severe, e.g., longterm agriculture (eliminating saplings and the seed pool) and is conducted over a large area (greatly diminishing the potential seed rain) can result in a very protracted recovery time. — S. T. A. Pickett and P. S. White, eds., The Ecology of Natural Disturbance and…, 176

Categorization

• XREF: Severity gates between sapling-, seed-pool-, and seed-rain-driven recovery — a causal ladder directly applicable to interpreting present regeneration after past land use, incl. agriculture. — connects to: Disturbance resource boosts are transient pulses that pioneer traits exploit — S. T. A. Pickett and P. S. White, eds., The Ecology of Natural Disturbance and…, 1261; System structure determines which disturbances matter and their impact thresholds — S. T. A. Pickett and P. S. White, eds., The Ecology of Natural Disturbance and…, 2256; Sustainable harvest rules demand knowing each plant’s specific regeneration limits — Robin Wall Kimmerer, Braiding Sweetgrass: Indigenous Wisdom,…, 584 (+2 more)
• ADDENDUM: Pairs with the trees-as-infrastructure piece: long-term agriculture as a disturbance that erases the seed pool is a strong angle on how site history (clearing vs single treefall) shapes what grows back.

Broader Connections

• Disturbance resource boosts are transient pulses that pioneer traits exploit #expands (0.85) — S. T. A. Pickett and P. S. White, eds., The Ecology of Natural Disturbance and…, 1261
• System structure determines which disturbances matter and their impact thresholds #qualifies (0.75) — S. T. A. Pickett and P. S. White, eds., The Ecology of Natural Disturbance and…, 2256
• Sustainable harvest rules demand knowing each plant’s specific regeneration limits #qualifies (0.72) — Robin Wall Kimmerer, Braiding Sweetgrass, 584