Bobcat Connectivity Modeling for the California Bay Area Linkage Network [ds857]

SDE Raster Dataset

Open this dataset in BIOS
Download this dataset

Tags
patch size, Critical Linkages: Bay Area & Beyond, least-cost corridor, California, patch configuration, habitat suitability, linkage design


Summary

The primary objective of Critical Linkages: Bay Area & Beyond was to identify lands essential to maintain or restore functional connectivity among targeted wildlands for all species or ecological processes of interest in the study area.

Description

Critical Linkages: Bay Area and Beyond (Critical Linkages) was designed to preserve functional landscape linkages to maintain ecological and evolutionary processes among large wildlands and ensure the integrity of our existing and future conservation investments. The 14 priority linkages were designed based on 66 focal species, including 15 plants, 2 insects, 4 fish, 6 amphibians, 5 reptiles, 13 birds and 21 mammals. These focal species cover a broad range of habitat and movement requirements such that planning adequate linkages for their needs is expected to cover connectivity needs for the ecosystems they represent. The Critical Linkages Network is comprised of Linkage Designs, Large Landscape Blocks, Key Riparian Corridors, Riparian Buffer Zones and Important Baylands that together are expected to to accommodate potential live-in and move-through habitat for the focal species. The patch size analysis classified potential breeding habitat 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 (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. The patch configuration analysis assessed if the potential cores and patches of breeding habitat are within the species dispersal distance.For more information about the creation of the data including species specific model parameters please see Chapter 5 and Appendix D in the report at http://www.scwildlands.org/reports/Default.asp

Credits

Produced by Science and Collaboration for Connected Wildlands, Fair Oaks, CA, www.scwildlands.org

Use limitations

Extent

West -123.844975 East -119.658915
North 39.819422 South 35.638886

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

ArcGIS Metadata

Topics and Keywords

* Content type Downloadable Data


Theme keywords patch size, Critical Linkages: Bay Area & Beyond, least-cost corridor, California, patch configuration, habitat suitability, linkage design

Citation

* Title DS0857_20141117
Publication date 2013-04-0100:00:00


Presentation formats digital map
FGDC geospatial presentation format vector digital data


Citation Contacts

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
e-mail address kristeen@scwildlands



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


Resource Details

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


Status completed
Spatial representation type vector


* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.0.3348


Credits
Produced by Science and Collaboration for Connected Wildlands, Fair Oaks, CA, www.scwildlands.org
ArcGIS item properties
* Name DS0857_20141117
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Geographic extent
Bounding rectangle
West longitude -123.844955
East longitude -119.659208
South latitude 35.638907
North latitude 39.819297

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -123.844975
* East longitude -119.658915
* North latitude 39.819422
* South latitude 35.638886
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -13786359.508460
* East longitude -13320369.508460
* South latitude 4251045.774426
* North latitude 4839735.774426
* Extent contains the resource Yes

Resource Maintenance

Resource maintenance
Update frequency not planned


Resource Constraints

Legal constraints
Limitations of use
See access and use constraints information.

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 8.1.1


Spatial Data Properties

Vector
Geometric objects
Object type complex
Object count 68934



Geoprocessing history

Process
Process name Raster Calculator
Date 2014-11-1714:31:56
Tool location c:\program files (x86)\arcgis\desktop10.2\ArcToolbox\Toolboxes\Spatial Analyst Tools.tbx\RasterCalculator
Command issued
Include in lineage when exporting metadata No


Process
Process name Add Field
Date 2014-11-1714:58:17
Tool location c:\program files (x86)\arcgis\desktop10.2\ArcToolbox\Toolboxes\Data Management Tools.tbx\AddField
Command issued
Include in lineage when exporting metadata No


Process
Process name Build Pyramids
Date 2014-11-1715:08:47
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

Distributor
Available format
Name File Geodatabase Feature Class




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/ds857.zip
Function performed download

Fields

Details for object SDE_VAT_215
* Type Table
* Row count 3
Definition
Bobcat Connectivity Modeling for the California Bay Area Linkage Network [ds857]


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 255
* 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 2015-01-13


ArcGIS metadata properties
Metadata format ArcGIS1.0
Metadata style FGDC CSDGM Metadata
Standard or profile used to edit metadata ISO19139


Created in ArcGIS for the item 2014-11-1714:31:56
Last modified in ArcGIS for the item 2015-01-1311:27:55


Automatic updates
Have been performed Yes
Last update 2015-01-1311:27:43


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



Metadata Maintenance

Maintenance
Update frequency unknown