Herp Searches - Spears and Didion Ranches [ds323]

SDE Feature Class

Open this dataset in BIOS
Download this dataset

Tags
sample, reptile, California, Didion Ranch, Placer County, Placer Legacy Program, constrained, Coon Creek, Spears Ranch, Sierra Nevada foothills, environment, biota, amphibian, area


Summary

These data are intended to represent baseline data for wildlife communities and habitat conditions in these parks. They can be used to assess and monitor the park's ecological viability and sustainability.

Description

These data are detections of reptiles in 2005 from visual encounter searches of an area constrained to a 100-m radius circle around each of 15 fixed sample points at Spears and Didion Ranches, Placer County, California. Surveys were done three times in April and May by trained observers who searched the entire 100-m radius (3.1 ha) circular plot looking on and under rocks, logs, and debris for reptiles and amphibians. Fifty-eight detections were made of five species of reptiles and one species of amphibian.

Credits

Use limitations

These data can be used without constraints.

Extent

West -121.207910 East -121.166109
North 38.975248 South 38.959425

Scale Range

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource biota, environment


* Content type Downloadable Data


Place keywords California, Didion Ranch, Placer County, Coon Creek, Spears Ranch, Sierra Nevada foothills

Theme keywords sample, reptile, Placer Legacy Program, constrained, amphibian, area

Theme keywords environment, biota

Thesaurus
Title ISO 19115 Topic Category




Citation

* Title DS0323_20070821
Publication date 2007-06-16


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


Supplemental information
Methods Single or multiple observers conducted surveys for reptiles and amphibians of all of each 7.8-acre circular plot where point counts were done for breeding landbirds. Observers completely surveyed the entire plot (within 100-m radius from point count station) while focusing their searches around key habitat elements where reptiles and amphibians are most likely to be found. Survey duration for the entire plot depended on habitat complexity. Observers began their area-constrained searches (ACS) after landbird point counts were done. This saved on travel time and ensured that searches were conducted during the late morning and early afternoon hours when these animals were more active. Two ACS's were conducted at each sample point count location with single visits during two time periods: (1) between late March and April; and (2) between late April and early May. Observers tried to complete an ACS in 1 visit; multiple observers could be used but the total ACS area for the combined observers had to be the entire 7.8-acre (100-m radius) circular plot. Habitat elements likely to support reptiles and amphibians include rocks, logs, talus, cliffs, building debris, wetlands, shorelines of rivers and streams, and shallow water areas. Observers were encouraged to concentrate their searches on, in, and under these elements and search them thoroughly. Logs, rocks, and debris, if turned over, were be returned to their original positions. Observers also searched open grassy areas, bare soil, and trees for reptiles and amphibians when walking to various habitat elements found in the plot. Reference: Garrison, B. May 2005. Field and Data Recording Protocols for Area-Constrained Searches of Reptiles and Amphibians at Spears Ranch. Resources Assessment Program, North Central Region, Calilfornia Department of Fish and Game, Rancho Cordova, CA. 3pp. + field data form. This report can be accessed at https://nrmsecure.dfg.ca.gov/documents/ContextDocs.aspx?cat=BIOS&sub=ds323 .
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143


ArcGIS item properties
* Name DS0323_20070821
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Description
publication date
Temporal extent
Date and time 2007-06-16

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -121.207910
* East longitude -121.166109
* North latitude 38.975248
* South latitude 38.959425
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -13492802.834700
* East longitude -13488149.567700
* South latitude 4715861.243300
* North latitude 4718126.706600
* 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 DS0323_20070821
* Object type point
* Object count 15



ArcGIS Feature Class Properties
Feature class name DS0323_20070821
* Feature type Simple
* Geometry type Point
* Has topology FALSE
* Feature count 15
* Spatial index TRUE
* Linear referencing FALSE



Data Quality

Scope of quality information
Resource level dataset




Data quality report - Completeness omission
Measure description
All data are complete.




Data quality report - Quantitative attribute accuracy
Measure description
It is assumed that the locations of the survey points are accurate with regard to the actual locations on the ground where the surveys were done. It is assumed that these species were accurately identified by vocalization and/or visually, and that they were counted accurately. Also, the spatial accuracy of the location of the detected animals in the 100-m count circle radius is presumably accurate to +- 5 m because distances were measured with laser rangefinders and compasses.




Lineage

Process step
Description
Data were gathered in the field, entered into SYSTAT statistical software as raw field data from the counts, and then an Excel file was created with the summary statistics for detection rates and the average number of individuals per count.


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


Contact information




Process step
Description
Data from the sample points were gathered in the field using global positioning system units and then uploaded to Arc View 3.2


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 2011-07-2108:50:31
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2013-06-2114:43:26
Tool location c:\program files (x86)\arcgis\desktop10.1\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
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



Ordering process
Date of availability
Turnaround time
1-2 weeks
Instructions
Contact Distributor



Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/300_399/ds323.zip

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

Fields

Details for object DS0323_20070821
* Type Feature Class
* Row count 15


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 LATDD
* Alias LATDD
* Data type Double
* Width 8
* Precision 11
* Scale 7
Field description
Latitude of sample point in NAD83.


Field LONDD
* Alias LONDD
* Data type Double
* Width 8
* Precision 12
* Scale 7
Field description
Longitude of sample point in NAD83.


Field POINT
* Alias POINT
* Data type Double
* Width 8
* Precision 10
* Scale 0
Field description
Number of the sample point within the parks.


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.






Details for object SR 2005 herp detectionsB
* Type Table
* Row count 58


Field OID
* Alias OID
* 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.




Field COM_NAME
* Alias COM_NAME
* Data type String
* Width 25
Field description
Common name of detected species


Field SCI_NAME
* Alias SCI_NAME
* Data type Number
* Width 11
Field description
Scientific name of detected species


Field NUM_INDIV
* Alias NUM_INDIV
* Data type Number
* Width 12
Field description
Number of animals detected at the sample point


Field AGE
* Alias AGE
* Data type Number
* Width 10
Field description
Age of detected animal


Field DATE_SURV
* Alias DATE_SURV
* Data type Date
* Width 8
Field description
Date of reptile and amphibian surveys


Field TIME_DETEC
* Alias TIME_DETEC
* Data type String
* Width 12
Field description
Time of detection using 24-hour clock


Field TEMP_F
* Alias TEMP_F
* Data type Number
* Width 9
Field description
Temperature (degrees F) at detection


Field HABITAT
* Alias HABITAT
* Data type String
* Width 29
Field description
Habitat type in CWHR habitat classification system at location where animal detected
Description source
Mayer and Laudenslayer, 1988; http://www.dfg.ca.gov/bdb/html/wildlife_habitats.html


Field SAMPLE_PT
* Alias SAMPLE_PT
* Data type Number
* Width 12
Field description
Sample point identification number; matches sample point identification numbers in shapefile.


Field DISTANCE_M
* Alias DISTANCE_M
* Data type Number
* Width 13
Field description
Distance (m) from sample point to location where animal found


Field BEARING
* Alias BEARING
* Data type Number
* Width 10
Field description
Bearing (in degrees) from sample point to where animal detected




Overview Description
Entity and Attribute Overview
These 15 points occur in oak woodland habitat of Spears and Didion Ranch parks in Placer County, California. The sample points were the centers of locations where reptile and amphibian surveys were conducted in 2005.




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 2014-03-0616:01:45
Last modified in ArcGIS for the item 2014-04-2810:06:26


Automatic updates
Have been performed Yes
Last update 2014-04-2810:06:26


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) 358-2945

Address
Type postal
Delivery point 1701 Nimbus Road
Delivery point California Department of Fish and Game
Delivery point North Central Region
City Rancho Cordova
Administrative area CA
Postal code REQUI95670
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