heronegret_300mbuffer

Theme keywords: Great Egret, Little Blue Heron, disturbance, colonial nesting, Great Blue Heron, wetlands, Snowy Egret, Ardeidae, Cattle Egret, Black-Crowned Night-Heron, biota

Abstract: The data set is is part of a continuing effort by Audubon Canyon Ranch to monitor colonially nesting herons and egrets in the northern San Francisco Bay area. The methods used provide for the intensive regional monitoring of nesting distributions, nest survivorship, productivity of successful nests, and intraseasonal timing.

FGDC and ESRI Metadata:

Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.

Identification Information:


Citation:
Citation information:
Originators: John P. Kelly


Title:
heronegret_300mbuffer


Publication date: 20070101
Geospatial data presentation form: vector digital data


Other citation details:
version 2005


Larger work citation:
Citation information:
Originators: John P. Kelly


Title:
north bay heron and egret project


Description:
Abstract:
The data set is is part of a continuing effort by Audubon Canyon Ranch to monitor colonially nesting herons and egrets in the northern San Francisco Bay area. The methods used provide for the intensive regional monitoring of nesting distributions, nest survivorship, productivity of successful nests, and intraseasonal timing.

Purpose:
This shapefile shows 300 meter radius buffer zones surrounding all known heron and egret nesting sites as of the year 2005. These buffer zones define the area around each site in which human activity may disturb nesting birds.

Time period of content:
Time period information:
Single date/time:
Calendar date: 2005

Currentness reference:
ground condition

Status:
Progress: In work
Maintenance and update frequency: As needed

Spatial domain:
Bounding coordinates:
West bounding coordinate: -122.489316
East bounding coordinate: -122.171433
North bounding coordinate: 38.683401
South bounding coordinate: 38.185942

Keywords:
Theme:
Theme keywords: Great Egret, Little Blue Heron, disturbance, colonial nesting, Great Blue Heron, wetlands, Snowy Egret, Ardeidae, Cattle Egret, Black-Crowned Night-Heron, biota

Place:
Place keywords: California, San Francisco Bay Area, Marin, Sonoma, Napa, Solano, Sacramento, Alameda, Contra Costa, San Francisco, Santa Clara
Place keyword thesaurus: Geographic Names Information System

Access constraints: Access to this data is limited to County of Napa, partner agencies, government agencies or non-profits. Please contact County GIS staff for more information.
Use constraints:
Disclaimer: This GIS data is intended to provide a visual display of data for the user's convenience. Users of this data are hereby notified that the appropriate public primary information sources should be consulted for verification of the information.  Although every reasonable effort has been made to assure the accuracy of this data, the County of Napa makes no warranty, representation or guaranty as to the content, sequence, accuracy, timeliness or completeness of any of the data provided herein and explicitly disclaims any representations and warranties, including, without limitation, the implied warranties of merchantability and fitness for a particular purpose. The County of Napa assumes no liability for any errors, omissions, or inaccuracies in the information provided regardless of how caused and assumes no liability for any decisions made or actions taken or not taken by the user of the data in reliance upon any information or data furnished hereunder. Because the GIS data provided is not warranted to be up-to-date, the user should check with the County staff for updated information.

Point of contact:
Contact information:
Contact person primary:
Contact person: John P. Kelly
Contact organization: Audubon Canyon Ranch, Cypress Grove Research Center
Contact position: Director, Conservation Science and Habitat Protection


Contact address:
Address type: mailing address
Address:
P.O. Box 808
City: Marshall
State or province: CA
Postal code: 94940
Country: USA

Contact voice telephone: 415-663-8203
Contact facsimile telephone: 415-663-1112


Contact electronic mail address: kellyjp@egret.org


Data set credit:
The principle investigator is John P. Kelly. Principle data compilers have been Sarah Tappen, Katie Etienne, Mark McCaustland and Emiko Condeso. Data collectors are many, a complete list can be obtained from the Cypress Grove Research Center.

Native data set environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.3.1.1850


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Data Quality Information:


Attribute accuracy:
Attribute accuracy report:
All data are screened by three professional biologists for accuracy before entering in database.  Data are proofed twice after entry.

Positional accuracy:
Horizontal positional accuracy:
Horizontal positional accuracy report:
Colony locations were collected using various recreation-grade GPS units (5-10 m accuracy) and a Trimble GeoExplorer with post-processing differential correction (1-5 m accuracy).  No formal accuracy assessment of the units was done.

Lineage:
Process step:
Process description:
Data received from Audobon Canyon Ranch and clipped to Napa County Boundary.  Then reprojected to Stateplane. 300 meter buffers created in ArcMap

Process date: 20090128


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Spatial Data Organization Information:


Direct spatial Rreference method: Vector


Point and vector object information:
ESRI terms description:
*Name: heronegret_300mbuffer
*ESRI feature type: Simple
*ESRI feature geometry:
*ESRI topology: FALSE
*ESRI feature count: 29
*Spatial index: TRUE
*Linear referencing: FALSE


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Spatial Reference Information:


Horizontal coordinate system definition:
Planar:
Planar coordinate information:
Planar coordinate encoding method: coordinate pair
Coordinate representation:
Abscissa resolution: 0.000328
Ordinate resolution: 0.000328
Planar distance units: survey feet

Geodetic model:
Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 80
Semi-major axis: 6378137.000000
Denominator of flattening ratio: 298.257222

Vertical coordinate system definition:
Altitude system definition:
Altitude resolution: 1.000000
Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates

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Entity and Attribute Information:


Detailed description:
*Name: heronegret_300mbuffer


Entity type:
Entity type label: heronegret_300mbuffer
*Entity type type: Feature Class
*Entity type count: 29

Attribute:
Attribute label: BUFF_DIST
*Attribute alias: BUFF_DIST


*Attribute type: Double
*Attribute width: 8
*Attribute precision: 38
*Attribute scale: 8


Attribute:
Attribute label: Shape
*Attribute alias: Shape
Attribute definition:
Feature geometry.
Attribute definition source:
ESRI

*Attribute type: Geometry
*Attribute width: 4
*Attribute precision: 0
*Attribute scale: 0


Attribute domain values:
Unrepresentable domain:
Coordinates defining the features.


Attribute:
Attribute label: CODE
*Attribute alias: CODE
Attribute definition:
An integer that uniquely identifies a site.  Sub-sites are identified by a decimal value (e.g. 100.1 is a sub-site of colony 100).  When it was not possible to resolve data to the level of sub-site, data were recorded under a code ending in .999 (e.g. if data were recorded for colony 100 without indicating subsite, they would be recorded as site 100.999).  Data from sites 1-499 are managed by Audubon Canyon Ranch.  Data from sites with a code >499 are managed by the San Francisco Bay Bird Observatory.

*Attribute type: Double
*Attribute width: 8
*Attribute precision: 19
*Attribute scale: 6


Attribute:
Attribute label: SITE
*Attribute alias: SITE
Attribute definition:
The name of the site.  Sites are referenced primarily by a CODE, however having a site name is convenient.

*Attribute type: String
*Attribute width: 254
*Attribute precision: 0
*Attribute scale: 0


Attribute:
Attribute label: UTMNORTH
*Attribute alias: UTMNORTH
Attribute definition:
Geographic coordinate (y) for estimated site center.

*Attribute type: String
*Attribute width: 10
*Attribute precision: 0
*Attribute scale: 0


Attribute:
Attribute label: UTMEAST
*Attribute alias: UTMEAST
Attribute definition:
Geographic coordinate (x) for estimated site center.

*Attribute type: String
*Attribute width: 10
*Attribute precision: 0
*Attribute scale: 0


Attribute:
Attribute label: OBJECTID
*Attribute alias: OBJECTID
Attribute definition:
Internal feature number.
Attribute definition source:
ESRI

*Attribute type: OID
*Attribute width: 4
*Attribute precision: 10
*Attribute scale: 0


Attribute domain values:
Unrepresentable domain:
Sequential unique whole numbers that are automatically generated.


Attribute:
Attribute label: Shape.STArea()
*Attribute alias: Shape.STArea()


*Attribute type: Double
*Attribute width: 0
*Attribute precision: 0
*Attribute scale: 0


Attribute:
Attribute label: Shape.STLength()
*Attribute alias: Shape.STLength()


*Attribute type: Double
*Attribute width: 0
*Attribute precision: 0
*Attribute scale: 0


Overview description:
Entity and attribute overview:
Missing value code: -999.

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Distribution Information:


Resource description: downloadable data


Standard order process:
Digital form:
Digital transfer information:
Transfer size: 0.060

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Metadata Reference Information:


Metadata date: 20090618
Metadata review date: 20070821
Metadata future Rreview date: 20080821


Metadata contact:
Contact information:
Contact person primary:
Contact person: Emiko Condeso
Contact organization: Audubon Canyon Ranch, Cypress Grove Research Center
Contact position: Research Coordinator


Contact address:
Address type: mailing address
Address:
P.O. Box 808
City: Marshall
State or province: CA
Postal code: 94940

Contact voice telephone: 415-663-8203
Contact facsimile telephone: 415-663-1112


Contact electronic mail address: emiko@egret.org


Hours of service: M-F 9-5



Metadata standard name: FGDC Content Standards for Digital Geospatial Metadata
Metadata standard version: FGDC-STD-001-1998
Metadata time convention: local time


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