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Seabird Spring Survey Compilation: Observations from various surveys between 1975 and 2008

Compilation of 29 surveys varying in survey methods, temporal and geographic extent along the California coast.

Seabird distribution layers are from CDAS, a compilation of at-sea survey data maintained by RG Ford Consulting Company under contract to CDFW-OSPR. The seabird layers here show mean density (weighted to survey effort) from the following surveys, from 1975 through 2008.

For more details please view "Data Layers" tab for survey methods from ...

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