Coastal Cactus Wren Habitat Conservation and Management Plan Update

Originally, a Cactus Wren Habitat Conservation and Management Plan was prepared in 2015 to help fulfill MSP Roadmap Goals and Objectives established for management of the Coastal Cactus Wren in the Otay genetic cluster. This plan identified and prioritized management and restoration needs for the cactus wren in this genetic cluster, and also assessed connectivity to core habitat areas on Conserved Lands within the Sweetwater and Lake Jennings genetic clusters to further ensure persistence of the cactus wren in southern San Diego County over the next 100 years. In 2024, this plan was updated to review progress in managing cactus wrens, reassess management needs and priorities, and was expanded to include the San Pasqual Valley in north San Diego. This plan includes new monitoring data documenting cactus wren population status, habitat characteristics and threats, as well as results from demographic, foraging, and genetic studies. The management strategy has two priorities: 1) Bolster existing populations through habitat enhancement, restoration, and expansion, and 2) Improve connectivity by creating stepping stone linkages. The plan evaluates 46 locations on Conserved Lands that support or have the potential to support cactus wren territories. Each location is included in a threat matrix scored for different types of habitat threats; a decision tree prioritizing management; an evaluation of cactus scrub expansion opportunities; and identification of management actions that can benefit wrens. A Coastal Cactus Wren Management Plan Map Viewer accompanies the plan and includes annual monitoring data including cactus wren territories and cactus scrub survey plot habitat and threat assessments. The viewer also includes the locations where land managers have enhanced, restored, or expanded cactus scrub since 2008. Using the bird monitoring data, we have been able to identify new Cactus Wren territories as a result of habitat management. There are management areas prioritized for cactus scrub restoration and expansion based on evaluations of suitable habitat, configurations of existing habitat and wren territories.

General Management
Threats and Stressors
in progress
Notice
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