Landscape Blocks for the California Desert Linkage Network [ds823]

SDE Feature Class

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


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

The rapidly increasing demands being placed on our deserts points to the urgent need for a comprehensive habitat connectivity assessment that spans jurisdictional boundaries and promotes the partnerships needed to implement a regional conservation strategy for this diverse and striking landscape. The primary goal of the California Desert Connectivity Project is to identify areas where maintenance or restoration of ecological connectivity is essential for conserving the unique biological diversity of California's deserts. Identification of these key areas of connectivity will help inform land management and conservation decisions, infrastructure improvements and mitigation options in the face of future land-use pressures as well as climate change. Another goal of the project was to produce implementable linkage designs and provide the necessary data and information to inform land management, land acquisition, restoration (e.g., habitat restoration and restoration of permeability across transportation barriers), and stewardship in connectivity zones. In 2009, SC Wildlands brought together regional ecologists to conduct a formal evaluation of 47 linkages associated with the California deserts. The evaluation was designed to assess the biological irreplaceability and vulnerability of each linkage (sensu Noss et al. 2002). Irreplaceability assessed the relative biological value of each linkage, including both terrestrial and aquatic criteria: 1) size of habitat blocks served by the linkage; 2) quality of existing habitat in the smaller habitat block; 3) quality and amount of existing habitat in the proposed linkage; 4) linkage to other ecoregions or key to movement through the ecoregion; 5) facilitation of seasonal movement and responses to climatic change; and 6) addition of value for aquatic ecosystems. Vulnerability and threat was primarily evaluated by comparing proposed renewable energy projects and study areas, and proposed road projects that might disrupt animal movement among targeted Landscape Blocks (i.e., areas protected from energy development and roads). Landscape Blocks include BLM Wilderness Areas and Areas of Critical Environmental Concern (ACEC), national and state parks, federal and state wildlife refuges, private conservation reserves, and military reservations. This process identified 23 crucial linkages that were each defined by a pair of Landscape Blocks that should remain connected. One of the 23 linkage planning areas, the Mojave National Preserve to Joshua Tree National Park, was determined to be redundant with a previously delineated linkage design between Joshua Tree-Twentynine Palms Marine Corps Base (Penrod et al. 2008) and the linkage planning area between Mojave National Preserve and Twentynine Palms. Thus, this process focused on 22 linkages that could be irretrievably compromised by development projects over the next decade unless immediate conservation action occurs (Figure 1). The biological integrity of several thousand square miles of wildlands in the California desert would be irreversibly jeopardized if these linkages were lost.

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 -118.983843 East -114.217582
North 37.237446 South 32.708784

Scale Range

ArcGIS Metadata

Topics and Keywords

* Content type Downloadable Data


Place keywords Mohave Desert, Sonoran Desert, California

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

Citation

* Title DS0823_20140324


Presentation formats * digital map


Citation Contacts

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


Resource Details

Dataset languages English(UNITED STATES)


Status completed
Spatial representation type * vector


Supplemental information
For a detailed description of the approach and methodology used to delineate the landscape block please see the accompanying report "A Linkage Network for the California Deserts" at http://www.scwildlands.org/reports/Default.aspx . The associated linkage network dataset included in BIOS is ds822.
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143


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 DS0823_20140324
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Description
publication date
Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -118.983843
* East longitude -114.217582
* North latitude 37.237446
* South latitude 32.708784
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -13245220.866900
* East longitude -12714643.046100
* South latitude 3856713.437200
* North latitude 4472255.563200
* Extent contains the resource Yes

Resource Points of Contact

Point of 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
e-mail address kristeen@scwildlands.org



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 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 DS0823_20140324
* Object type composite
* Object count 16



ArcGIS Feature Class Properties
Feature class name DS0823_20140324
* Feature type Simple
* Geometry type Polygon
* Has topology FALSE
* Feature count 16
* Spatial index TRUE
* Linear referencing FALSE



Geoprocessing history

Process
Process name
Date 2009-07-2811:01:34
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\SimplifyPolygon
Command issued
Include in lineage when exporting metadata No


Process
Process name
Date 2009-08-0513:01:32
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Process name
Date 2009-11-2320:21:36
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures
Command issued
Include in lineage when exporting metadata No


Process
Process name
Date 2011-08-1319:43:20
Tool location C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Data Management Tools.tbx\Merge
Command issued
Include in lineage when exporting metadata No


Process
Process name
Date 2011-08-1320:03:14
Tool location C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Data Management Tools.tbx\CalculateField
Command issued
Include in lineage when exporting metadata No


Process
Process name
Date 2011-08-2508:48:52
Tool location C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Data Management Tools.tbx\Append
Command issued
Include in lineage when exporting metadata No


Process
Process name
Date 2011-08-2508:50:04
Tool location C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Data Management Tools.tbx\CalculateField
Command issued
Include in lineage when exporting metadata No


Process
Date 2013-07-2515:21:45
Tool location C:\Program Files (x86)\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Process
Date 2014-03-2412:32:51
Tool location c:\program files (x86)\arcgis\desktop10.1\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2014-03-2412:36:50
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

Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/800_899/ds823.zip

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

Fields

Details for object DS0823_20140324
* Type Feature Class
* Row count 16
Definition
Landscape Blocks for the California Desert Linkage Network [ds823]


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 Name
* Alias Name
* Data type String
* Width 120
* Precision 0
* Scale 0




Field Shape.STArea()
* Alias Shape.STArea()
* Data type Double
* Width 0
* Precision 0
* Scale 0




Field Shape.STLength()
* Alias Shape.STLength()
* Data type Double
* Width 0
* Precision 0
* Scale 0






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
Standard or profile used to edit metadata ItemDescription


Created in ArcGIS for the item 2014-03-2412:36:40
Last modified in ArcGIS for the item 2014-04-2815:25:14


Automatic updates
Have been performed Yes
Last update 2014-04-2815:25:14


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
e-mail address kristeen@scwildlands



Thumbnail and Enclosures

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