Layer: California Least Tern Monitoring Sites Generalized _ CDFW

View In: Map Viewer

Name: California Least Tern Monitoring Sites Generalized _ CDFW _ ds3146

Display Field: Site_Name

Type: Feature Layer

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Description: California least tern colonies are monitored during nesting season along the California Coast and data is reported to California Department of Fish and Wildlife. The colonies in this dataset range from the Tijuana river mouth near the Mexico border to Sacramento. Locations and data include both present and historic sites. Locations are approximate and can have variation over time. These approximate locations were overlaid with a statewide hexagon layer (ds675) and then a buffer was created in order to mask exact nesting locations. Some additional sites without location information can be found in the related table. The related table includes nesting data by year from 1990 - 2023. It's anticipated to update this dataset to include earlier and newer records. Monitoring data includes estimated fledglings, estimated breeding pairs, total number of nests, and predator information when included in site reports. Annual reports 2017 and earlier can also be found by searching in California Department of Fish and Wildlife's document library (nrm.dfg.ca.gov/documents/docViewer.aspx). A version of this data, summarized by region, has been made available in BIOS as California Least Tern Monitoring Sites by Region [ds3147]. This is a publicly available dataset.

Copyright Text: U.S. Fish and Wildlife Service, Department of Defense, California Department of Parks and Recreation, California Department of Fish and Wildlife, Orange County Water District, Point Blue Conservation Science, San Francisco Bay Bird Observatory, East Bay Regional Park District, Santa Ana Watershed Association, San Diego Zoo Wildlife Alliance, Ryan Ecological Consulting, San Diego Audubon Society, Los Angeles Audubon Society, and Ventura Audubon Society. For records 2017 and earlier, see annual report (go to https://nrm.dfg.ca.gov/documents/DocViewer.aspx and search for least tern) or contact Hans Sin (Hans.Sin@wildlife.ca.gov), Kyle Rice (Kyle.Rice@wildlife.ca.gov), or Laura Van Vranken (Laura.VanVranken@wildlife.ca.gov).

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Object ID Field: OBJECTID

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Site_ID (type: esriFieldTypeString, alias: Site_ID, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
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Templates:

Relationships:

forward (0) -- Related To: California Least Tern Monitoring Sites Generalized - CDFW [ds3146] Extended Table (1)

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 2/24/2025 8:10:10 PM

Schema Last Edit Date: 2/24/2025 8:10:10 PM

Data Last Edit Date: 2/24/2025 8:10:10 PM

Supported Operations: Query Query Top Features Query Analytic Query Bins Query Related Records Generate Renderer Validate SQL Get Estimates ConvertFormat

Layer: California Least Tern Monitoring Sites Generalized _ CDFW _ ds3146 (ID:0)