- Bay-Delta Conservation Plan
- Delta Restoration and Mitigation Programs
- Ecosystem Restoration Program
- Statewide Water Planning
CDFW Water Branch
830 S Street
Sacramento, CA 95811
ERP Implmenting Agencies
- California Department of Fish & Wildlife
- U.S. Fish & Wildlife Service
- National Marine Fisheries Service
Related Agencies & Programs
- Department of Water Resources
- Fish Passage Improvement Program
- Interagency Ecological Program
- Delta Fish Agreement
- Delta Risk Management Strategy
- California Natural Resources Agency
- Bureau of Reclamation
- U.S. Fish and Wildlife Service
- Delta Stewardship Council
- Delta Conservancy
What is the Driver-Linkage-Outcome (DLO) Approach?
- DRERIP Delta Conceptual Models
- Current DRERIP Delta Conceptual Models
- List of Current DRERIP Delta Conceptual Models
- DRERIP Action Evaluation Procedure and Decision Support Tool
The fundamental approach employed through the DRERIP conceptual model development effort is a “driver-linkage-outcome” approach that uses deterministic models of ecosystem components linked together with cause-and-effect relationships of interacting variables and outcomes.
- Drivers are physical, chemical, or biological forces that control the species or system of interest.
- Linkages are cause-and-effect relationships between drivers and outcomes.
- Outcomes are response variables (such as reproductive success, growth, and mortality) that the conceptual model is attempting to explain. In the context of the DRERIP species conceptual models, "ultimate" outcomes reflect population or system-level responses to drivers.
The diagram below show a simple example of a driver-linkage-outcome conceptual model showing only one driver (nutrients) and one outcome (plant growth).
Figure 1. Conceptual model approach – Driver - Linkage - Outcome.