Golden Eagle (Aquila chrysaetos) Monitoring and Management Plan
Golden eagles (Aquila chrysaetos) face many threats in southern California. To reduce these threats and successfully conserve this species in western San Diego County, MSP Roadmap 2021-2026 objectives include the development and implementation of a â€œManagement Strategic Plan for Golden Eagles in San Diego Countyâ€ and a â€œMonitoring Strategic Plan for Golden Eagles in San Diego Countyâ€. These plans include general sections with background information and rationale for prioritizing and developing monitoring and management recommendations. Previously, the U.S. Geological Survey (USGS) in collaboration with local, State, and other Federal agencies has conducted a multi-year research study of golden eagles to address questions regarding habitat use, movement behavior, nest occupancy, genetic population structure, and human impacts on eagles. From 2016-17, occupancy analyses were conducted and it was concluded that estimates of occupancy were greatest at sample sites with more rugged terrain conditions, lower human development, and lower amounts of scrubland vegetation cover (Weins et al. 2022). Tracking data from the last 10 years in the Western Unites States have shown eagles exhibit long-distance, nonroutine movements that were responsive to the updraft potential of the spatial and temporal landscape they encountered (Poessel et al. 2022). For the development of both Plans, chapters will be shaped based on the latest scientific information regarding occupancy, natal nesting success, juvenile dispersal, movement and biotelemetry, home range estimation, habitat use, and prey availability. Site-based threats assessment will be used to determine the best management practices. These plans are developed with input and guidance provided by the San Diego Golden Eagle working group, which includes include landowners and managers, scientists, species experts, and representatives from non-profit organizations, government, and wildlife agencies. Occurrence-specific management recommendations will be based on working group input and multiple years of data on Golden Eagle population status, habitat associations, and threats. These are living documents as the plans will be updated when new information becomes available or management actions are completed, and new recommendations are needed.
Pollinator Monitoring Plan
Declines of insects are being reported worldwide and includes several pollinator species in California. With reduced abundances and loss of species, there is a possibility that the ecosystem function of pollination is being compromised. The most common pollinators are Hymenoptera (bees and wasps), Coleoptera (beetles), Diptera (flies), and Lepidoptera (butterflies and moths). Overall, about 87 percent of plant species are pollinated by insects. San Diego Association of Governments TransNet Environmental Mitigation Programâ€™s Regional Management and Monitoring 2021-2022 and 2023-2024 workplans include objectives to improve wildlife movement. These objectives are based on the San Diego Management and Monitoring Programâ€™s Management and Monitoring Strategic Plan for Conserved Lands in Western San Diego County (MSP Roadmap; SDMMP and TNC 2017). Objectives for 2022-2026 are to prepare and implement a monitoring plan to survey pollinator communities and assess ecological integrity of pollinator functions in coastal sage scrub, chaparral, forblands and grasslands across the MSP Area. This project will prepare pollinator data in 2021 for analysis in 2022 and development of a pollinator monitoring pilot study plan in 2023 to be implemented in 2024. This plan is being prepared in conjunction with a coastal sage scrub, chaparral, and grassland vegetation monitoring plan. Pollinator sampling locations will be co-located at vegetation sampling plots.
|File name||Lead Author||Year||Type|
|Evaluating the sensitivity of Quino Checkerspot Butterfly (Euphydryas editha quino) to two herbicides commonly used for habitat restoration and management||2012||report|