Western Grebe - Avian Knowledge Network (AKN) [ds237]

File Geodatabase Feature Class

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Tags
biota, numbers, distribution, presence, California, Aechmophorus occidentalis, Western Grebe


Summary

This data set displays information on observation locations for Western Grebes in California to help understand the species' distribution, movements, and trends. The information also can be used for research, planning, and management for this species.

Description

This data set contains basic observation information on Western Grebes in California and is provided by the Avian Knowledge Network (AKN). AKN is a joint venture including sponsors National Biological Information Infrastructure and National Science Foundation, and collaborators Cornell Lab of Ornithology, PRBO Conservations Science, Redwood Sciences Laboratory, Rocky Mountain Bird Observatory, and Bird Studies Canada. AKN collects, organizes, archives, and distributes avian data for various analytical purposes. This large (almost 20,000,000 observations to date) and comprehensive database provides a unified structure where data from multiple sources can be used together to produce more meaningful products. AKN also has developed applications to visualize temporal and spatial patterns of bird movements and numbers.

These bird observations were made by professional birding consultants, ornithologists, researchers, and knowledgeable volunteers over the last few years. Most of their observations came from point counts from job sites, back yards, or from sites established to assess bird populations in specific locations or habitats throughout California. Protocols for the three programs that produce the most observations are on the web at: eBird - http://www.ebird.org/content/ Great Backyard Bird Count - http://www.birdsource.org/gbbc/ Project FeederWatch - http://www.birds.cornell.edu/pfw/

The dataset is limited in that the there is no observer provided for each record, the location is only accurate to a circular area equivalent to about one-sixteenth of a square mile, and a number of fields have only code values and the code definitions are not known.

Credits

Gordon Gould - California Department of Fish and Wildlife, Biogeographic Data Branch

Use limitations

License: This work is licensed under Creative Commons Attribution 4.0 International License ( https://creativecommons.org/licenses/by/4.0/ ). Using the citation standards recommended for BIOS datasets ( https://www.wildlife.ca.gov/Data/BIOS/Citing-BIOS ) satisfies the attribution requirements of this license.

Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.

If these data are used any resultant display or distribution of this information should acknowledge the Avian Knowledge Network as the source. For more information on the large numbers of contributors to the Bird Monitoring Data Registry contact AKN at http://www.avianknowledge.net/

Extent

West -124.300599 East -114.938921
North 42.011865 South 32.502324

Scale Range
Maximum (zoomed in) 1:5,000
Minimum (zoomed out) 1:150,000,000

ArcGIS Metadata

Topics and Keywords

* Content type Downloadable Data
Export to FGDC CSDGM XML format as Resource Description No

Place keywords California

Theme keywords biota

Thesaurus
Title ISO 19115 Topic Category


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Theme keywords numbers, distribution, presence, Aechmophorus occidentalis, Western Grebe

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Citation

Title Western Grebe - Avian Knowledge Network (AKN) [ds237]
Publication date 2006-10-0100:00:00


Edition version 1


Presentation formats * digital map


Other citation details
Source information downloaded from Avian Knowledge Network download page, http://www.avianknowledge.net/AKN%20Download%20Tool .


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Citation Contacts

Responsible party
Organization's name California Department of Fish and Wildlife, Biogeographic Data Branch
Individual's name Gordon Gould
Contact's role originator


Responsible party
Individual's name Neil Clipperton
Organization's name California Department of Fish and Wildlife
Contact's role point of contact


Contact information
Phone
Voice (916) 445-9753

Address
Type physical
City Sacramento
Administrative area CA
Country US
e-mail address Neil.Clipperton@wildlife.ca.gov

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Resource Details

Dataset languages English(UNITED STATES)
Dataset character set utf8 - 8 bit UCS Transfer Format


Status under development
Spatial representation type * vector


Supplemental information
This metadata was collected, created, and written by the Biogeographic Data Branch, California Department of Fish and Game.
* Processing environment Microsoft Windows 10 Version 10.0 (Build 19045) ; Esri ArcGIS 13.1.0.41833


Credits
Gordon Gould - California Department of Fish and Wildlife, Biogeographic Data Branch
ArcGIS item properties
* Name ds237
* Size 0.049
* Location file://\\geodata.\\BIOSOnline\Refresh\TODOData\BIOSOnlineData.gdb
* Access protocol Local Area Network

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Extents

Extent
Description
ground condition
Temporal extent
Beginning date 1970-01-01
Ending date 2006-01-01

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -124.300599
* East longitude -114.938921
* North latitude 42.011865
* South latitude 32.502324
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -357187.802000
* East longitude 420460.865900
* South latitude -602228.915400
* North latitude 443744.320800
* Extent contains the resource Yes

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Resource Maintenance

Resource maintenance
Update frequency quarterly


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Resource Constraints

Legal constraints
Limitations of use
Neither the State of California nor the California Department of Fish and Game warrant the correctness or accuracy of the observation data presented in here. It is used at the user's own risk.
Other constraints
For use by BIOS staff only.
Constraints
Limitations of use

License: This work is licensed under Creative Commons Attribution 4.0 International License ( https://creativecommons.org/licenses/by/4.0/ ). Using the citation standards recommended for BIOS datasets ( https://www.wildlife.ca.gov/Data/BIOS/Citing-BIOS ) satisfies the attribution requirements of this license.

Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.

If these data are used any resultant display or distribution of this information should acknowledge the Avian Knowledge Network as the source. For more information on the large numbers of contributors to the Bird Monitoring Data Registry contact AKN at http://www.avianknowledge.net/


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Spatial Reference

ArcGIS coordinate system
* Type Projected
* Geographic coordinate reference GCS_North_American_1983
* Projection NAD_1983_California_Teale_Albers
* Coordinate reference details
Projected coordinate system
Well-known identifier 3310
X origin -16909700
Y origin -8597000
XY scale 10000
Z origin -100000
Z scale 10000
M origin -100000
M scale 10000
XY tolerance 0.001
Z tolerance 0.001
M tolerance 0.001
High precision true
Latest well-known identifier 3310
Well-known text PROJCS["NAD_1983_California_Teale_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",-4000000.0],PARAMETER["Central_Meridian",-120.0],PARAMETER["Standard_Parallel_1",34.0],PARAMETER["Standard_Parallel_2",40.5],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3310]]

Reference system identifier
* Value 3310
* Codespace EPSG
* Version 6.8(9.2.0)


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Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name ds237
* Object type point
* Object count 0

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ArcGIS Feature Class Properties
Feature class name ds237
* Feature type Simple
* Geometry type Point
* Has topology FALSE
* Feature count 0
* Spatial index TRUE
* Linear referencing FALSE

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Data Quality

Scope of quality information
Resource level dataset


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Data quality report - Conceptual consistency
Measure description
Sites where this species is found may not represent sites with continuous presence of this same animal or species of animal. Other sites where this species exists may not be listed in observation reports in this dataset.


HideData quality report - Conceptual consistency


Data quality report - Completeness omission
Measure description
Some observations have some have partial data in the TimeCollec, DuraInHrs, NumObservs, ProjCode, ProtoCode, and SurvAreaId fields. However all records had an entry in the ObsCount field. These data do not reflect a statewide sampling. Therefore, not all sites where this species is found are represented in this data set.


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Data quality report - Quantitative attribute accuracy
Measure description
It is assumed that observers can distinguish between Western Grebes and Clark's Grebes. Some of the Time_Colle entries are from very early in the morning (e.g., 0100, 0200, 0245). These may failures to convert the time to a 24-hour clock as grebe watching is not a usual activity at night.


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Data quality report - Absolute external positional accuracy
Dimension horizontal


Measure description
There is no datum given and it is assumed that both NAD27 and NAD83 data are present. Therefore the actual site may be anywhere within a 300 meter (~0.2 mile) radius of the point location. The actual methods, reference, or device for determining the point's location are unknown, but given the wide array of observers they may come from an equally wide variety of sources.


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Lineage

Process step
When the process occurred
Indeterminate date inapplicable
Description
Gather and organize incoming observation data from contributors for distribution through the AKN.


Process contact
Individual's name Kevin Webb
Organization's name Cornell Computer Science Department
Contact's role processor


Contact information


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Process step
When the process occurred 2006-09-08
Description
Download from AKN download site


Process contact
Individual's name Gordon Gould
Organization's name DFG - BDB
Contact's role processor


Contact information


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Process step
When the process occurred 2006-09-08
Description
Convert .txt file into shapefile 1- Converted to Excel; unused/un-needed fields remove and remaining fields reordered. 2- Converted to Arc shapefile in NAD83 Teale Albers projection.


Process contact
Individual's name Gordon Gould
Organization's name DFG - BDB
Contact's role processor


Contact information


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Process step
When the process occurred 2006-09-14
Description
Add metadata


Process contact
Individual's name Gordon Gould
Organization's name DFGG - BDB
Contact's role processor


Contact information


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Process step
When the process occurred 2013-11-07
Description
Edited metadata by updating point of contact information.


Process contact
Individual's name Sophie King
Organization's name California Department of Fish and Wildlife
Contact's role processor


Contact information


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Source data
Description
Source was a tab-delimited .txt file downloaded from the Avian Knowledge Network download site ( http://www.avianknowledge.net/AKN%20Download%20Tool ) on 9/8/2006.


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Geoprocessing history

Process
Process name
Date 2021-05-2815:35:13
Tool location c:\program files (x86)\arcgis\desktop10.6\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2024-01-1012:16:18
Tool location c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Conversion Tools.tbx\ExportFeatures
Command issued
Include in lineage when exporting metadata No


Process
Date 2024-01-1012:16:34
Tool location c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Process
Date 2024-01-1012:16:56
Tool location c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Data Management Tools.tbx\Rename
Command issued
Include in lineage when exporting metadata No


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Distribution

Distributor
Ordering process
Terms and fees Free, no fees.
Turnaround time
Self-service, download from web site.
Instructions
Log on to the Avian Knowledge Network's "Download AKN Data" at http://www.avianknowledge.net/AKN%20Download%20Tool

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Distribution format
* Name File Geodatabase Feature Class


Transfer options
* Transfer size 0.049


Online source
Location https://www.wildlife.ca.gov/Data/BIOS
Function performed information

Online source
Location https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/200_299/ds237.zip
Function performed download

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Fields

Details for object ds237
* Type Feature Class
* Row count 0
Definition
Western Grebe - AKN [ds237]


Field Shape
* Alias Shape
* Data type Geometry
* Width 0
* Precision 0
* Scale 0
* Field description
Feature geometry.
* Description source
ESRI
* Description of values
Coordinates defining the features.


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Field OBJECTID
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 0
* Scale 0
* Field description
Internal feature number.
* Description source
Esri
* Description of values
Sequential unique whole numbers that are automatically generated.


HideFieldOBJECTID


Field RecordNum
* Alias RecordNum
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Sequential number provided by AKN in downloading requested query.
HideFieldRecordNum


Field SciName
* Alias SciName
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
The full name of the lowest level taxon to which the organism can be identified.
Description source
Avian Knowledge Network
HideFieldSciName


Field CommonName
* Alias CommonName
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
Standard English name used by AOU for this taxon.
HideFieldCommonName


Field DateCollec
* Alias DateCollec
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
Date the bird was observed or collected.
HideFieldDateCollec


Field TimeCollec
* Alias TimeCollec
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
The time of day the object or observation was collected from the field, expressed as decimal hours from midnight, local time (e.g., 12.0 = noon, 13.5 = 1:30pm).
Description source
Avian Knowledge Network
Accuracy information
Explanation
"0" values in this field are probably null values.
HideFieldTimeCollec


Field DuratInHrs
* Alias DuratInHrs
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
The total duration of the entire observation event during which this particular observation was made, expressed as decimal hours
Description source
Avian Knowledge Network
Accuracy information
Explanation
"0" values in this field are probably null values.
HideFieldDuratInHrs


Field NumObservs
* Alias NumObservs
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
The total number of observers who participated in the observation event.
Description source
Avian Knowledge Network
Accuracy information
Explanation
"0" values in this field are null values.
HideFieldNumObservs


Field ObsCount
* Alias ObsCount
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Number of individuals detected or observed during this observation event.
Description source
Avian Knowledge Network
HideFieldObsCount


Field BasisRecrd
* Alias BasisRecrd
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
A descriptive term indicating whether the record represents an object or observation.
Description source
Avian Knowledge Network
HideFieldBasisRecrd


Field InstitCode
* Alias InstitCode
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
The code (or acronym) identifying the institution administering the collection in which the organism record is cataloged. No global registry exists for institutional codes; use the code that is "standard" in your discipline.
Description source
Avian Knowledge Network
List of values
Value CLO
Description The Cornell Lab of Ornithology


Value PRBO
Description PRBO Conservation Science


HideFieldInstitCode


Field CollecCode
* Alias CollecCode
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
The code (or acronym) identifying the collection within the institution in which the organism record is cataloged (not applicable to AKNS).
Description source
Avian Knowledge Network
List of values
Value EBIRD
Description A Cornell Lab of Ornithology and Natrional Audubon Society project to make, submit, and review bird observations.
Enumerated domain value definition source http://www.ebird.org/content/index.html


Value GBBC
Description Great Backyard Bird Count


Value LSAC
Description not currently available


Value PIFR
Description not currently available


Value SJBR
Description not currently available


HideFieldCollecCode


Field ProjCode
* Alias ProjCode
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
The code (or acronym) identifying the project within the institution during which the observation was made. Code definitions are not currently available.
Description source
Avian Knowledge Network
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Field ProtoCode
* Alias ProtoCode
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
The code (or acronym) identifying the protocol used to collect the observation data, using standards defined within your discipline. Code definitions are not currently available.
Description source
Avian Knowledge Network
HideFieldProtoCode


Field SurvAreaId
* Alias SurvAreaId
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
A unique identifier identifying the geographic site at which the observation was made. The site identifier must be unique within each project.
Description source
Avian Knowledge Network
HideFieldSurvAreaId


Field SampEvenId
* Alias SampEvenId
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
A unique identifier identifying the sampling event during which the observations were made. The identifier must be unique within each project. A sampling event is defined as a series of observations made during a determined amount of time at a given location.
Description source
Avian Knowledge Network
HideFieldSampEvenId


Field StateProv
* Alias StateProv
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
The full, unabbreviated name of the state, province, or region (i.e., the next smaller political region than Country) from which the organism was collected.
Description source
Avian Knowledge Network
HideFieldStateProv


Field Latitude
* Alias Latitude
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
The latitude of the location from which the organism was collected, expressed in decimal degrees.
Description source
Avian Knowledge Network
HideFieldLatitude


Field Longitiude
* Alias Longitiude
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
The longitude of the location from which the organism was collected, expressed in decimal degrees.
Description source
Avian Knowledge Network
HideFieldLongitiude


Field GlobUniqId
* Alias GlobUniqId
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
A universal resource name for the global unique identifier for the specimen or observation record. The identifier should be the complete Uniform Resource Name (URN) for the record. In the absence of a persistent global unique identifier, construct one in the form "URN:catalog:[InstitutionCode]:[CollectionCode]:[CatalogNumber]".
Description source
Avian Knowledge Network
HideFieldGlobUniqId


Field DatLastMod
* Alias DatLastMod
* Data type Date
* Width 8
* Precision 0
* Scale 0
Field description
The last time when any of the data for the record were modified. Returns values as ISO 8601 date and time in UTC(GMT). (see http://www.w3.org/TR/ NOTE-datetime). Data sources should use a native datetime data type, if possible.
Description source
Avian Knowledge Network
HideFieldDatLastMod


HideDetails for objectds237


Overview Description
Entity and Attribute Overview
This shapefile consists of basic observations of Western Grebes. Each record contains information on the date, time, and duration of the observation, how many observers and how many grebes were involved, the source of the data, codes for the observer's protocol, survey area, and sampling event, and the latitude and longitude.


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References

Aggregate Information
Association type cross reference


Aggregate resource name
Other citation details
All "AKN" data sets come from the same source and are created by the same observation and archiving process.


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Metadata Details

Metadata language English(UNITED STATES)
Metadata character set utf8 - 8 bit UCS Transfer Format


Scope of the data described by the metadata dataset
Scope name * dataset


* Last update 2024-01-10


ArcGIS metadata properties
Metadata format ArcGIS1.0
Standard or profile used to edit metadata FGDC


Created in ArcGIS for the item 2024-01-1012:16:27
Last modified in ArcGIS for the item 2024-01-1012:16:16


Automatic updates
Have been performed Yes
Last update 2024-01-1012:16:16


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Metadata Contacts

Metadata contact
Individual's name Neil Clipperton
Organization's name California Department of Fish and Wildlife
Contact's role point of contact


Contact information
Phone
Voice (916) 445-9753

Address
Type physical
City Sacramento
Administrative area CA
Country US
e-mail address Neil.Clipperton@wildlife.ca.gov

HideContact information


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Metadata Maintenance

Maintenance
Update frequency not planned


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Thumbnail and Enclosures

Thumbnail

Enclosure
Enclosure type File
Description of enclosure original metadata
Original metadata document, which was translated yes
Source metadata format fgdc

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