Mohave Ground Squirrel Connectivity Modeling for the California Desert Linkage Network [ds830]

SDE Raster Dataset

Open this dataset in BIOS
Download this dataset

Tags
least-cost corridor, patch size, biota, habitat suitability, California, Sonoran Desert, patch configuration, location, land facet, Mohave Desert, environment


Summary

The primary objective of this effort is to identify lands essential to maintain or restore functional connectivity among wildlands for all species or ecological processes of interest in the California deserts and as a vital adaptation strategy to conserve biodiversity during climate change.

Description

This dataset represents potential cores and patches of breeding habitat for Mohave ground squirrel (Spermophilus mohavensis). Potential breeding area is defined as a cluster of pixels that are good enough (habitat suitability score above 50) and big enough to support breeding by the focal species. The other primary input to the analysis is home range or territory size. Thus, this analysis was only conducted if this information was available for the focal species. Potential breeding habitat was classified into two size classes. A potential core was defined as a continuous area of suitable habitat large enough to sustain at least 50 individuals. Potential cores are probably capable of supporting the species for several generations (although with erosion of genetic material if isolated). A breeding patch was defined as an area of suitable habitat large enough to support successful reproduction by a pair of individuals (perhaps more if home ranges overlap greatly), but smaller than a potential core area. Patches are useful to the species if the patches are linked via dispersal to other patches and core areas. For more information about the creation and utilization of this data, please see the report "A Linkage Network for the California Deserts" at http://www.scwildlands.org/reports/Default.aspx

Credits

Produced for the Bureau of Land Management and the Wildlands Conservancy. Produced by Science and Collaboration for Connected Wildlands, Fair Oaks, CA www.scwildlands.org and Northern Arizona University, Flagstaff, Arizona http://oak.ucc.nau.edu/pb1/ .

Use limitations

Extent

West -118.799778 East -116.063330
North 36.520940 South 34.229802

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, Sonoran Desert, Mohave Desert

Theme keywords least-cost corridor, patch size, habitat suitability, patch configuration, land facet

Theme keywords biota, location, environment

Thesaurus
Title ISO 19115 Topic Category




Citation

Title Mohave Ground Squirrel Connectivity Modeling for the California Desert Linkage Network [ds830]
Publication date 2012-02-1500:00:00


Presentation formats * digital table


Citation Contacts

Responsible party
Organization's name Science and Collaboration for Connected Wildlands
Contact's role originator


Responsible party
Individual's name Kristeen Penrod
Organization's name Science & Collaboration for Connected Wildlands
Contact's position Conservation Director
Contact's role point of contact


Contact information
Phone
Voice (209) 285-1916

Address
Type
e-mail address kristeen@scwildlands



Resource Details

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


Status completed
Spatial representation type * grid


Supplemental information
Core areas for Mohave ground squirrel (Spermophilus mohavensis) were defined as greater than or equal to 24,281 ha. Patch size was delineated as greater than or equal to 13 ha but less than 24,281 ha.
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.2.3552


Credits
Produced for the Bureau of Land Management and the Wildlands Conservancy. Produced by Science and Collaboration for Connected Wildlands, Fair Oaks, CA www.scwildlands.org and Northern Arizona University, Flagstaff, Arizona http://oak.ucc.nau.edu/pb1/ .
ArcGIS item properties
* Name Mohave Ground Squirrel Connectivity Modeling for the California Desert Linkage Network [ds830]
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -118.799778
* East longitude -116.063330
* North latitude 36.520940
* South latitude 34.229802
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -13224730.834515
* East longitude -12920110.834515
* South latitude 4059700.739435
* North latitude 4372540.739435
* Extent contains the resource Yes

Resource Maintenance

Resource maintenance
Update frequency not planned


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 148923141.92838538
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 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 8.2.6


Data Quality

Geoprocessing history

Process
Process name Project Raster
Date 2014-11-1308:18:13
Tool location c:\program files (x86)\arcgis\desktop10.2\ArcToolbox\Toolboxes\Data Management Tools.tbx\ProjectRaster
Command issued
Include in lineage when exporting metadata No


Process
Process name Build Pyramids
Date 2014-11-1715:12:37
Tool location c:\program files (x86)\arcgis\desktop10.2\ArcToolbox\Toolboxes\Data Management Tools.tbx\BuildPyramids
Command issued
Include in lineage when exporting metadata No


Distribution

Distribution format
* Name SDE Raster Dataset


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

Online source
Location ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/800_899/ds830.zip
Function performed download

Fields

Details for object SDE_VAT_191
* Type Table
* Row count 3
Definition
Mohave Ground Squirrel Connectivity Modeling for the California Desert Linkage Network [ds830]


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 Value
* Alias Value
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
The habitat suitability score, which is calculated as a function of pixel attributes such as land cover, road density, topographic position, and elevation.


Field Count_
* Alias Count_
* Data type Double
* Width 8
* Precision 38
* Scale 8




Field Habitat
* Alias Habitat
* Data type String
* Width 10
* Precision 0
* Scale 0
Field description
The potential breeding area, defined as a cluster of pixels that are good enough and big enough (i.e., larger than minimum sizes specified by the species expert) to support breeding by the focal species.
List of values
Value patch
Description An area of suitable habitat large enough to support successful reproduction by a pair or individuals (perhaps more if home ranges overlap greatly), but smaller than a potential core area. Patches are useful to the species if the patches are linked via dispersal to other patches and core areas.


Value < patch (less than patch)
Description Areas of suitable habitat that are smaller than a breeding patch.


Value core
Description A contiguous area of suitable habitat large enough to sustain at least 50 individuals. Potential cores are probably capable of supporting the species for several generations (although with erosion of genetic material if isolated).






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 2014-11-20


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


Created in ArcGIS for the item 2014-09-1615:40:17
Last modified in ArcGIS for the item 2014-11-2012:51:06


Automatic updates
Have been performed Yes
Last update 2014-11-2012:51:06


Metadata Contacts

Metadata contact
Individual's name Kristeen Penrod
Organization's name Science & Collaboration for Connected Wildlands
Contact's position Conservation Director
Contact's role point of contact


Contact information
Phone
Voice (209) 285-1916

Address
Type
e-mail address kristeen@scwildlands



Metadata Maintenance

Maintenance
Update frequency not planned