1.2.18—Human impacts on resilience
- Syllabus
- First assessment 2026
- Objective
- 1.2.18
- Level
- SL
Human actions lower resilience when they shrink storages or biological diversity, leaving fewer reserves and alternative pathways after disturbance.
Trace action → reduced storage/diversity → larger proportional shock → slower recovery or tipping risk. Restoration can reverse the mechanism.
Deforestation removes biomass and seed stores and fragments habitat, so drought or fire has a larger effect than in a connected diverse forest.
Rebuilding diverse habitat and reserves restores alternative pathways; one species may not.
Human influence is not automatically resilience loss; identify the storage or diversity mechanism.