Riparian Area Raptors - Sierra Nevada Foothill [ds294]

SDE Feature Class

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Tags
Amador, barn owl, Nevada, hawk, northern saw-whet owl, California, long-eared owl, owl, Yuba, osprey, flammulated owl, Butte, red-shouldered hawk, Placer, environment, biota, northern pygmy-owl, raptor, red-tailed hawk, Calaveras, sharp-shinned hawk, El Dorado, great horned owl, western screech-owl, Cooper's hawk, Sierra Nevada Mountain Range, Swainson's hawk


Summary

The data were part of a larger study of wildlife use of riparian habitat along Sierra Nevada watercourses. Other data from this study include point counts of birds from the same fixed points. The raptor data are separate from the point count bird and habitat data collected from the larger study.

Description

These data are point locations where hawks and owls (raptors) were detected during playback surveys conducted between 28 March 2005 and 21 July 2005 along 36 randomly selected watercourses in the foothills of the Sierra Nevada Mountain Range. These data represent 260 positive responses for several species of hawks and owls to the playback surveys. This study was done by the North Central Region of the California Department of Fish and Game with support from the Resource Assessment Program. These data represent the point locations where individual hawks and owls were detected based on geographic algorithms using estimated distances and compass bearings from fixed points along public roads. Methodology: Playback surveys using MP3 players and battery-powered speakers were done to elicit vocal or behavioral responses from hawks and owls from fixed points along public roads in the foothills of the Sierra Nevada. The surveys were done along 36 randomly selected watercourses, and one or three surveys were done at the points between March and July 2005. Seventeen watercourses had one survey while 19 watercourses had three surveys. Survey periods were (1) March to mid-April, (2) late April to late May, and (3) June to July. Watercourses with one survey were surveyed during the March to mid-April period; watercourses with one survey were dropped from the study after the first survey due to logistic and manpower constraints. Each watercourse had 3-5 fixed points that were between 500-1,000 meters apart to ensure spatial independence. Hawk surveys were conducted between 8:00 am and 5:00 pm, while owl surveys were conducted between 8:30 pm and 4:15 am. Playback surveys were done with fixed sequences of species calls as follows: (1) for hawks, sharp-shinned hawks, Cooper's hawks, and red-shouldered hawks; and (2) for owls, flammulated owl (starting in May), northern saw-whet owl, northern pygmy-owl, western screech-owl, long-eared owl, and great-horned owl. No calls were done for red-tailed hawks, osprey, Swainson's hawks, or barn owls which were detected during the surveys and included in these data. The duration of the playbacks for each species consisted of a 1-minute silent period, a 4-minute playback period with 4 repeated sequences of 30 seconds of vocalizations followed by 30 seconds of silence, and a 1-minute silent period. The speaker initially faced North, and was then rotated South, West, and East with successive 30-second playback/30-second silence periods. Detected animals were visually or aurally located and identified. Laser rangefinders were used to estimate distances, while compasses were used to derive compass bearings. Habitats of detected animals were determined from field observations during the day for hawks or from aerial photographs with owls based on knowledge of field conditions at the fixed points. A GIS algorithm was used to locate the estimated field locations based on the estimated distances and compass bearings, and then habitats were verified with aerial photographs. The sex and age of each detected individual was determined if possible, and observers rated the confidence of their determination of the number of individuals, species type, sex and age of each detection.

Credits

Use limitations

These data can be used without constraints.

Extent

West -121.593453 East -120.475467
North 39.682036 South 38.092498

Scale Range

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource biota, environment


* Content type Downloadable Data


Place keywords Amador, Nevada, California, Yuba, Butte, Placer, Calaveras, El Dorado, Sierra Nevada Mountain Range

Theme keywords barn owl, hawk, northern saw-whet owl, long-eared owl, owl, osprey, flammulated owl, red-shouldered hawk, northern pygmy-owl, raptor, red-tailed hawk, sharp-shinned hawk, great horned owl, western screech-owl, Cooper's hawk, Swainson's hawk

Theme keywords environment, biota

Thesaurus
Title ISO 19115 Topic Category




Citation

* Title DS0294_20130709
Publication date 2007-03-21


Edition Version 1


Presentation formats * digital map


Citation Contacts

Responsible party
Organization's name Barrett A. Garrison, Resource Assessment Program, California Department of Fish and Game, North Central Region
Contact's role originator


Resource Details

Dataset languages English(UNITED STATES)


Status completed
Spatial representation type * vector


* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143


ArcGIS item properties
* Name DS0294_20130709
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Description
ground condition
Temporal extent
Beginning date
Indeterminate date 28 March 2005
Ending date
Indeterminate date 21 July 2005

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -121.593453
* East longitude -120.475467
* North latitude 39.682036
* South latitude 38.092498
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -13535721.325900
* East longitude -13411267.657900
* South latitude 4592500.900700
* North latitude 4819843.570400
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Individual's name Barrett A. Garrison
Organization's name Resource Assessment Program, California Department of Fish and Game, North Central Region
Contact's position Staff Environmental Scientist
Contact's role point of contact


Contact information
Phone
Voice (916) 358-2945
Fax (916) 358-2912

Address
Type postal
Delivery point North Central Region
Delivery point 1701 Nimbus Road
Delivery point California Department of Fish and Game
City Rancho Cordova
Administrative area CA
Postal code 95670
e-mail address bgarrison@dfg.ca.gov



Resource Maintenance

Resource maintenance
Update frequency as needed


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. They are used at the user's own risk.
Other constraints
Public use.
Constraints
Limitations of use
These data can be used without constraints.

Spatial Reference

ArcGIS coordinate system
* Type Projected
* Geographic coordinate reference GCS_WGS_1984
* Projection WGS_1984_Web_Mercator_Auxiliary_Sphere
* Coordinate reference details
Projected coordinate system
Well-known identifier 102100
X origin -20037700
Y origin -30241100
XY scale 10000
Z origin 0
Z scale 1
M origin 0
M scale 1
XY tolerance 0.001
Z tolerance 2
M tolerance 2
High precision true
Latest well-known identifier 3857
Well-known text PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]

Reference system identifier
* Value 3857
* Codespace EPSG
* Version 7.11.2


Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name DS0294_20130709
* Object type point
* Object count 260



ArcGIS Feature Class Properties
Feature class name DS0294_20130709
* Feature type Simple
* Geometry type Point
* Has topology FALSE
* Feature count 260
* Spatial index TRUE
* Linear referencing FALSE



Data Quality

Scope of quality information
Resource level dataset




Data quality report - Conceptual consistency
Measure description
It is assumed that the detection of a species is a unique location for each animal found during each survey period. These observations resulted from multiple surveys so a cluster of points for a species could be repeat observations of the same individual in the same general area. These observations represent point locations for animals that are highly mobile so it is unlikely that these animals will be found again at the same spot indicated in this file. Repeat surveys of the same areas, however, may result in detections of these same species.




Data quality report - Completeness omission
Measure description
All data are complete except for the specific time of the observation.




Data quality report - Quantitative attribute accuracy
Measure description
It is assumed that these species were accurately identified by vocalization and/or visually. The confidence of each observation with regard to the species' identification is indicated in the file.




Data quality report - Absolute external positional accuracy
Dimension horizontal


Measure description
Observations were derived from the best field estimates of the observers of the animal's fixed location at the time of detection. Compass bearings were measured with handheld compass, and distances were estimated with laser rangefinders. Observations are assumed accurate within 25 m. Owls were detected at night so spatial accuracy of their points is lower than hawks which were detected during the day. A GIS algorithm was used to derive the actual locations from fixed survey points on the ground based on the compass bearings and estimated distances.




Lineage

Process step
Description
Gathered and entered field data from field observations, and then created an ArcView shapefile based on a GIS algorithm using compass bearings and detection distances to derive individual point locations.


Process contact
Individual's name Barrett A. Garrison
Organization's name California Department of Fish and Game
Contact's role processor


Contact information




Geoprocessing history

Process
Date 2013-07-0914:16:37
Tool location C:\Program Files (x86)\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2013-07-0914:19:43
Tool location C:\Program Files (x86)\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Distribution

Distributor
Contact information
Individual's name Gordon Gould
Organization's name Biogeographic Data Branch, California Department of Fish and Game
Contact's role distributor


Contact information
Phone
Voice (916) 445-5006
Fax (916) 324-0475

Address
Type postal
Delivery point 1416 Ninth St., 12th floor
Delivery point California Department of Fish and Game
City Sacramento
Administrative area CA
Postal code 95814
e-mail address ggould@dfg.ca.gov



Available format
Specification ArcView shapefile, Ver. 3.2.


Ordering process
Terms and fees None
Date of availability
Turnaround time
1-2 weeks
Instructions
Contact Distributor.



Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location http://bios.dfg.ca.gov

Online source
Location ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/200_299/ds294.zip

Fields

Details for object DS0294_20130709
* Type Feature Class
* Row count 260
Definition
Riparian Area Raptors - Sierra Nevada Foothill [ds294]


Field OBJECTID
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 10
* Scale 0
* Field description
Internal feature number.
* Description source
ESRI
* Description of values
Sequential unique whole numbers that are automatically generated.




Field Shape
* Alias Shape
* Data type Geometry
* Width 4
* Precision 0
* Scale 0
* Field description
Feature geometry.
* Description source
ESRI
* Description of values
Coordinates defining the features.




Field DETECTDATE
* Alias DETECTDATE
* Data type Date
* Width 36
* Precision 0
* Scale 0
Field description
Date of detection.


Field SNAME
* Alias SNAME
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Scientific name of detected species.


Field CNAME
* Alias CNAME
* Data type String
* Width 25
* Precision 0
* Scale 0
Field description
Common name of detected species.


Field TYPEDETECT
* Alias TYPEDETECT
* Data type String
* Width 25
* Precision 0
* Scale 0
Field description
Type of detection.


Field DETECTNUM
* Alias DETECTNUM
* Data type Double
* Width 8
* Precision 10
* Scale 0
Field description
Number of individual birds detected during the playback surveys.


Field DETECTSEX
* Alias DETECTSEX
* Data type String
* Width 15
* Precision 0
* Scale 0
Field description
Sex determination of detected individual bird.


Field DETECTAGE
* Alias DETECTAGE
* Data type String
* Width 15
* Precision 0
* Scale 0
Field description
Age of detected individual bird.


Field DETECTCONF
* Alias DETECTCONF
* Data type String
* Width 20
* Precision 0
* Scale 0
Field description
Observer's confidence in their observation.


Field DETECTHAB
* Alias DETECTHAB
* Data type String
* Width 15
* Precision 0
* Scale 0
Field description
Habitat where the species was detected based on the CWHR habitat classification system.


Field LATDD
* Alias LATDD
* Data type Double
* Width 8
* Precision 19
* Scale 11
Field description
Latitude of location.


Field LONDD
* Alias LONDD
* Data type Double
* Width 8
* Precision 19
* Scale 11
Field description
Longitude of location.




Overview Description
Entity and Attribute Overview
The point data shown represent observations of several species of hawks and owls from watercourses in the foothills of the Sierra Nevada Mountain Range in California. Each observation record is a unique observation of an individual hawk or owl that responded vocally or behaviorally to playback surveys. Surveys were done on 36 randomly selected watercourses with 3-5 sample stations along each watercourse that were 500-1,000 m apart.




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 2014-04-28


ArcGIS metadata properties
Metadata format ArcGIS1.0
Metadata style FGDC CSDGM Metadata


Created in ArcGIS for the item 2014-03-0615:57:52
Last modified in ArcGIS for the item 2014-04-2809:56:40


Automatic updates
Have been performed Yes
Last update 2014-04-2809:56:40


Metadata Contacts

Metadata contact
Individual's name Barrett A. Garrison
Organization's name Resource Assessment Program, California Department of Fish and Game, North Central Region
Contact's role point of contact


Contact information
Phone
Voice (916) 358-2945
Fax (916) 358-2912

Address
Type postal
Delivery point California Department of Fish and Game
Delivery point North Central Region
Delivery point 1701 Nimbus Road
City Rancho Cordova
Administrative area CA
Postal code 95670
e-mail address bgarrison@dfg.ca.gov



Thumbnail and Enclosures

Thumbnail

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