Monitoring Western Snowy Plovers at Point Reyes National Seashore, Marin County, California, 2008 Annual Report
Peterlein CR. 2009. Monitoring Western Snowy Plovers at Point Reyes National Seashore, Marin County, California, 2008 Annual Report. Natural Resource Technical Report. NPS/SFAN/NRTR—2009/180. Natural Resource Program Center. Fort Collins
This report details the results of the 19th year of the Western Snowy Plover (Charadrius alexandrinus nivosus) monitoring program within Point Reyes National Seashore, Marin County, California (PRNS). The goal of the 2008 monitoring effort was to determine abundance, distribution, and breeding success of snowy plovers nesting on federal lands within PRNS. The intended audience of this report includes appropriate agencies at the county, state, and federal levels. The report provides an overview of the 2008 snowy plover monitoring program on federal lands and summarizes the results of the data collected during the field season. In 2008, there were 147 surveys conducted between Kehoe Beach and North Beach parking lot, two from South Beach to the Lighthouse, 17 on Limantour Spit, and two on Drakes Spit to determine abundance and distribution of breeding snowy plovers. An estimated 23-24 plovers bred on Point Reyes National Seashore. Exclosures were placed around 18 of 21 nests located in 2008. Eleven of 21 nests hatched at least one egg and 30 of 55 eggs hatched. Only five of 30 chicks survived for at least 28 days after hatching for a 16.1% fledging rate. The number of fledglings per egg was 0.09 which was the lowest since 1995.
- Type
- Published Report
- Authors
- Peterlein, Catherine
- Date of Issue
- 2009
- Publisher
- Natural Resource Program Center
- Units
- NRSS , PORE , SFAN
- Keywords
- Annual Report, Monitoring, snowy plovers