Downed Wood - Spears and Didion Ranches [ds316]

SDE Feature Class

Open this dataset in BIOS
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Tags
California, Didion Ranch, Placer County, Placer Legacy Program, slash, Coon Creek, Spears Ranch, Sierra Nevada foothills, downed wood debris, environment, biota, habitat elements


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 the number individual stems of three different types of downed woody debris (DWD), which are logs and slash, from 0.05-ha circular plot habitat samples taken in 2005 at sample points at Spears and Didion Ranches, Placer County, California. There were three 0.05-ha circular habitat sampling plots at each of the 15 sample points.

Credits

Use limitations

These data can be used without constraints.

Extent

West -121.208470 East -121.165699
North 38.975549 South 38.959000

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 Placer Legacy Program, slash, downed wood debris, habitat elements

Theme keywords environment, biota

Thesaurus
Title ISO 19115 Topic Category




Citation

* Title DS0316_20070822


Edition Version 1


Presentation formats * digital map


Citation Contacts

Responsible party
Organization's name Barrett A. Garrison, 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 Logs and downed woody debris are counted using the four (4) transects centered along the N-S, NE-SW, E-W, and NW-SE axis's used for the cover and seedling/sapling tallies. (Note that these 4 transects are actually the 8 transects described in the "Habitat Sampling Protocols" referenced below. Each transect in the protocol is from the center of the plot out to the plot's circumference. The count data for the 2 transects making up the N-S axis, for example, were combined in the data table under the NUMB_TRANS field. This resulted in 8 transects being combined with their axial pair and the counts being displayed in the data as the results of 4 transects.) The entire length of each transect is sampled. Transect length depends on the plot size as with other measures. Logs and slash intersected by these transects are tallied by California Wildlife Habitat Relationships (CWHR) classes for vegetation residues. Log and slash length must be > 1 m (3.3 ft) to be tallied, and diameter is measured at the greatest diameter of the log or slash. Logs intersecting multiple transects are tallied once; multiple branching logs and slash are tallied once based on the largest diameter by following branches to the trunk or largest diameter branch. Branches and slash broken off larger branches and trees are tallied as individual items. For more information on how this sampling component fits into the sampling scheme used on the Spears and Didion Ranch Parks project, see the the following documents: Garrison, B.A. May 2004. "Sierra Nevada Foothill Vegetation-Habitat Study, Habitat Sampling Protocols." Resource Assessment Program, Central Sierra Region, Calif. Dept. of Fish and Game, Rancho Cordova, CA. 4pp. These reports can be accessed at https://nrmsecure.dfg.ca.gov/documents/ContextDocs.aspx?cat=BIOS&sub=ds316 . "Sierra Nevada Foothill Wildlife, Habitat Sampling Datasheet." Resource Assessment Program, Central Sierra Region, Calif. Dept. of Fish and Game, Rancho Cordova, CA. 3pp. including methods. These reports can be accessed at https://nrmsecure.dfg.ca.gov/documents/ContextDocs.aspx?cat=BIOS&sub=ds316 .
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143


ArcGIS item properties
* Name DS0316_20070822
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Description
ground condition
Temporal extent
Date and time 2005-01-01

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -121.208470
* East longitude -121.165699
* North latitude 38.975549
* South latitude 38.959000
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -13492865.155500
* East longitude -13488103.963800
* South latitude 4715800.364300
* North latitude 4718169.803700
* Extent contains the resource Yes

Resource Points of Contact

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


Contact information
Phone
Voice 916-358-2945

Address
Type postal
Delivery point California Department of Fish and Game
Delivery point 1701 Nimbus Road
Delivery point North Central Region
City 1701 Nimbus Road
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 DS0316_20070822
* Object type point
* Object count 41



ArcGIS Feature Class Properties
Feature class name DS0316_20070822
* Feature type Simple
* Geometry type Point
* Has topology FALSE
* Feature count 41
* Spatial index TRUE
* Linear referencing FALSE



Data Quality

Scope of quality information
Resource level dataset




Data quality report - Completeness omission
Measure description
All vegetation-habitat sampling occurred at 3-circular plots around each of the 15 sample points in the project area. During data compilation the coordinates of the centers of 4-plots (3-2, 11-3, 12-3, and 14-1) were lost and are not shown when this data layer is displayed. However, the attribute data for these points exist in the database and are available for analysis if the exact point is not required (Contact the Data Distributor). See the linked referenced protocols and data sheet in these metadata to evaluate the how the missing coordinates might affect any further analysis of these data. Otherwise, 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. The spatial accuracy of the 100-m count circle radius is presumably accurate to +- 5 m because boundaries were measured with laser rangefinders.




Geoprocessing history

Process
Date 2011-07-2108:50:12
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2013-06-2114:42:28
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
Phone
Voice (916) 445-5006

Address
e-mail address ggould@dfg.ca.gov



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/300_399/ds316.zip

Fields

Details for object DS0316_20070822
* Type Feature Class
* Row count 41


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 in decimal degrees using NAD83 datum.


Field LONDD
* Alias LONDD
* Data type Double
* Width 8
* Precision 12
* Scale 7
Field description
Longitude in decimal degrees using NAD83 datum.


Field POINT_PLOT
* Alias POINT_PLOT
* Data type String
* Width 10
* Precision 0
* Scale 0
Field description
The sample point identification number followed by the vegetation plot identification number.


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 downed woody debris veg plotsB
* Type Table
* Row count 135


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 DWD_TYPE
* Alias DWD_TYPE
* Data type String
* Width 15
Field description
Type of downed woody debris (DWD) . DWD must be at least 3.3 ft long and intersect at least once one of the four 12.6 m transects through the 0.05 ha sample plot:
Description source
California Wildlife Habitat Rerlationships habitat classification system (Mayer and Laudenslayer, 1988; updates at http://www.dfg.ca.gov/html/wildlife_habitats.html )
List of values
Value large
Description >20 inches in diameter at large end


Value medium
Description 10-20 inches in diameter at large end


Value slash
Description 3-10 inches in diameter at large end




Field DWD_COUNT
* Alias DWD_COUNT
* Data type Number
* Width 11
Field description
The number of individual DWD counted that intersected with the 4 transect.
Accuracy information
Explanation
The rules for including DWD are described in the habitat sampling protocol.


Field NUMB_TRANS
* Alias NUMB_TRANS
* Data type Number
* Width 12
Field description
The number of 12.6-m transects counted at the vegetation plot. The 4 transects were (1) North and South, (2) NE to SW, (3) West to East, and (4) NW to SE.
Accuracy information
Accuracy Protocol states 8 transects, but this is only if each transect is a radii. This provides 2 transects for each of the 4 directions. Data were recorded here and summarized by the 4 directional transects.


Field POINT_PLOT
* Alias POINT_PLOT
* Data type String
* Width 10
Field description
The sample point identification number followed by the vegetation plot identification number.




Overview Description
Entity and Attribute Overview
Information on the type of downed woody debris, its size, and its quantity are contained in the extended table.




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 2014-03-0616:00:47
Last modified in ArcGIS for the item 2014-04-2810:04:02


Automatic updates
Have been performed Yes
Last update 2014-04-2810:04:02


Metadata Contacts

Metadata contact
Individual's name Gordon Gould
Organization's name Biogeographic Data Branch, California Department of Fish and Game
Contact's role point of contact


Contact information
Phone
Voice 916 445 5006

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