Nature Dependencies and Ecosystem Services: How to Map What Your Business Relies On

Educational practitioner guidance. Not legal, scientific-validation or assurance advice. Apply TNFD to the organisation's facts, stated materiality approach, ecological context and reporting basis.

A dependency exists when the organisation relies on an environmental asset or ecosystem service to operate, produce, sell or protect value. “Water”, “biodiversity” or “healthy soils” are broad labels. They become useful when the assessment states what the process receives, from which ecosystem and location, in what quantity or condition, and how a change would affect performance.

A beverage plant may depend on groundwater quantity and quality; an agricultural processor on crop production, pollination, soil formation and erosion regulation; a coastal hotel on beach stability, water quality, amenity and storm protection. One ecosystem can provide several services and one service can support several processes.

The metric and owner change at each layer. A water-volume metric describes business use; a catchment indicator describes context; a service indicator describes availability; and an operational metric describes disruption. None alone is the full pathway.

Provisioning services are not limited to purchased resources

A seafood company relies on functioning habitats and viable stocks; a data centre can rely on freshwater even if a utility is the immediate supplier. The contract does not replace the underlying nature dependency.

Regulating services often become visible when they fail

Flood regulation, sediment retention, purification and erosion control may not appear as purchased inputs. Their value becomes visible when degradation raises treatment, insurance, maintenance, downtime or capital requirements.

Cultural services require attention to users and rights

Tourism, recreation, identity and spiritual values depend on who benefits and how access or quality changes. Engagement with Indigenous Peoples, Local Communities and affected stakeholders can be important and should not be reduced to a generic visitor metric.

A dependency pathway connects a process to an environmental asset and ecosystem service, then tests criticality, controls or substitutes and financial consequences.

The geographic unit follows the service pathway: aquifer or catchment for water, landscape for pollination, shoreline for coastal protection and destination/viewshed for tourism. The site boundary is often only the receiving point.

Dependency priority should consider operational importance and substitutability. Critical dependencies combine high importance with limited substitutes and require detailed evidence and action.

A score can organise evidence, but TNFD does not prescribe one universal dependency score. Explain criteria, thresholds, weighting, overrides and governance. A safety or legal dependency may require escalation despite a moderate average score.

Analysis can begin qualitatively and become more quantitative as evidence matures. Retain causal link, time horizon, assumptions, range and affected unit. Avoid monetising before the ecological and operational pathway is credible.

1. Select locations/processes. Use Locate and value-chain priorities.

2. Identify environmental assets. Map ecosystem, water body, soil, habitat or species.

3. Identify services. State the contribution received.

4. Define requirement. Record quantity, quality, timing, reliability, access and scale.

5. Build causal pathway. Explain how change reaches the process.

6. Assess criticality/substitutability. Consider alternatives, concentration, lead time and cost.

7. Review controls/residual exposure. Test implementation, capacity and independence.

8. Connect to risk and finance. Document consequences, time horizons and channels.

9. Prioritise measurement/action. Select evidence, metrics, targets and responses.

10. Approve/update. Assign owner/reviewer and triggers.

The register separates cultural services supporting demand, regulating services supporting protection and water-quality services supporting bathing. Insurance is financial mitigation, not a substitute. The sea wall reduces some exposure but has limits. The analysis records seasonality, alternatives, downtime, controls and restoration/adaptation options.