Statewide Terrestrial Irreplaceability Summary - ACE [ds1334]

SDE Feature Class

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Tags
terrestrial, biodiversity, native, richness, rare, rarity, endemic, sensitive habitat, ACE, riparian, wetland, rare natural community, game, bird, reptile, amphibian, mammal, plant


Summary

Statewide Terrestrial Irreplaceability Summary, Areas of Conservation Emphasis (ACE), version 3.0. Terrestrial Irreplaceability is a measure of the uniqueness of habitat areas for rare endemic species in the landscape, and is one measurement used to describe the distribution of overall species biodiversity in California for the California Department of Fish and Wildlife (CDFW) Areas of Conservation Emphasis Project (ACE). Other measures of terrestrial species biodiversity included in the ACE terrestrial biodiversity summary are native species richness and rare species richness. Here, terrestrial irreplaceability represents the relative importance of each hexagon based on the uniqueness of habitat areas present for California rare endemic and near-endemic species. Hexagons with a high irreplaceability weight contain species or habitat conditions that occur in few places in the landscape. These area may be of high conservation value due to their unique contribution to biodiversity. The data provides, 1) a count of the total number of endemic species per taxonomic group in each hexagon based on documented species occurrence information, and 2) the irreplaceability weight, based on the rarity-weighted index (RWI), which weights the species count by the extent of the distribution for each species, so hexagons providing habitat for narrowly distributed species are given a higher score. Areas with a high RWI support rare species with few documented occurrences; these areas would be expected to support unique habitats or suites of species that are limited in distribution. The data can be used to view the distribution of rare endemic species in California, and to identify areas of high irreplaceability. Users can view a list of species that contribute to the biodiversity summary for each hexagon. The terrestrial irreplaceability summary depicts the areas of highest irreplaceability within each ecoregion across the state. To achieve this, the data was normalized by taxonomic group and by ecoregion (see Data Sources and Models Used, below). The terrestrial irreplaceability by taxonomic group layers give a statewide overview of irreplaceability for each individual taxonomic group, showing counts of rare endemic species per hexagon and irreplaceability weights (RWI values) for amphibians, birds, mammals, plants, and reptiles.

Description

For more information, see the Terrestrial Endemic Species Index Factsheet at https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=150816 .

The user can view a list of species potentially present in each hexagon in the ACE online map viewer https://map.dfg.ca.gov/ace/ . Note that the names of some rare or endemic species, such as those at risk of over-collection, have been suppressed from the list of species names per hexagon, but are still included in the species counts.

The California Department of Fish and Wildlifes (CDFW) Areas of Conservation Emphasis (ACE) is a compilation and analysis of the best-available statewide spatial information in California on biodiversity, rarity and endemism, harvested species, significant habitats, connectivity and wildlife movement, climate vulnerability, climate refugia, and other relevant data (e.g., other conservation priorities such as those identified in the State Wildlife Action Plan (SWAP), stressors, land ownership). ACE addresses both terrestrial and aquatic data. The ACE model combines and analyzes terrestrial information in a 2.5 square mile hexagon grid and aquatic information at the HUC12 watershed level across the state to produce a series of maps for use in non-regulatory evaluation of conservation priorities in California. The model addresses as many of CDFWs statewide conservation and recreational mandates as feasible using high quality data sources. High value areas statewide and in each USDA Ecoregion were identified. The ACE maps and data can be viewed in the ACE online map viewer, or downloaded for use in ArcGIS. For more detailed information see https://www.wildlife.ca.gov/Data/Analysis/ACE and https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=24326 .

Credits

ACE 3 Working Group and ACE 3 Development Team, California Department of Fish and Wildlife. Scripting and GIS data product development: Ryan Hill, Sandra Hill, and Melanie Gogol-Prokurat. ACE 3 conceptual model and source data development: Melanie Gogol-Prokurat, Sandra Hill, Diane Mastalir, Kristi Cripe, Dan Applebee, Janet Brewster, Kristina White, Patrick McIntyre, Todd Keeler-Wolf, Lisa Ohara, Steve Goldman, Peter Ode, Whitney Albright, Ryan Hill, and Karen Miner. Multiple datasets were compiled and analyzed in the development of ACE, including but not limited to California Wildlife Habitat Relationship (CWHR) species ranges and distribution models, California Natural Diversity Database (CNDDB) and other Biogeographic Information and Observation System (BIOS) rare species occurrence data, and Vegetation Classification and Mapping Program (VegCAMP) vegetation maps/landcover data. A full list of the datasets included in the ACE analysis is included in the technical report: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=24326.

Use limitations

The ACE data is subject to certain assumptions and limitations that must be considered in any use or application of the data. All ACE data layers are limited by the accuracy and scale of the input data. ACE is a compilation of the best available scientific information; however, many of these datasets are not comprehensive across the landscape, may change over time, and should be revised and improved as new data become available.

The user accepts sole responsibility for the correct interpretation and use of these data, and agrees not to misrepresent these data. CDFW makes no warranty of any kind regarding these data, express or implied. By downloading these datasets, the user understands that these data are in draft condition and subject to change at any time as new information becomes available. The user will not seek to hold the State or the Department liable under any circumstances for any damages with respect to any claim by the user or any third party on account of or arising from the use of data or maps. CDFW reserves the right to modify or replace these datasets without notification.

The ACE maps display biological and recreational values based on available data and constrained by the limitations of the data. The values may be influenced by level of survey effort in a given area. The ACE data represent broad-scale patterns across the landscape, and the value of any single hexagon should be interpreted with caution. ACE is a decision-support tool to be used in conjunction with species-specific information and local-scale conservation prioritization analyses.

The ACE maps do not replace the need for site-specific evaluation of biological resources and should not be used as the sole measure of conservation priority during planning. No statement or dataset shall by itself be considered an official response from a state agency regarding impacts to wildlife resulting from a management action subject to the California Environmental Quality Act (CEQA).

Extent

West -124.506169 East -113.498451
North 42.068507 South 32.423781

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

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource biota, environment


* Content type Downloadable Data


Place keywords California

Theme keywords terrestrial, biodiversity, native, richness, rare, rarity, endemic, sensitive haibtat, ACE, riparian, wetland, rare natural community, game, bird, reptile, amphibian, mammal, plant

Citation

Title Statewide Terrestrial Irreplaceability Summary - ACE [ds1334]
Publication date 2017-10-2600:00:00


Presentation formats * digital map


Citation Contacts

Responsible party
Organization's name California Department of Fish and Wildlife
Contact's role originator


Responsible party
Individual's name Melanie Gogol-Prokurat
Organization's name California Department of Fish and Wildlife
Contact's position Conservation Analysis Unit Coordinator
Contact's role point of contact


Contact information
Phone
Voice (916) 324-9265

Address
e-mail address melanie.gogol-prokurat@wildlife.ca.gov



Resource Details

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


Spatial representation type * vector


Supplemental information
See the ACE Technical Report for a detailed description of data inputs and analyses at https://nrmsecure.dfg.ca.gov/FileHandler.ashx?DocumentID=24326.
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.5.1.7333


Credits
ACE 3 Working Group and ACE 3 Development Team, California Department of Fish and Wildlife. Scripting and GIS data product development: Ryan Hill, Sandra Hill, and Melanie Gogol-Prokurat. ACE 3 conceptual model and source data development: Melanie Gogol-Prokurat, Sandra Hill, Diane Mastalir, Kristi Cripe, Dan Applebee, Janet Brewster, Kristina White, Patrick McIntyre, Todd Keeler-Wolf, Lisa Ohara, Steve Goldman, Peter Ode, Whitney Albright, Ryan Hill, and Karen Miner. Multiple datasets were compiled and analyzed in the development of ACE, including but not limited to California Wildlife Habitat Relationship (CWHR) species ranges and distribution models, California Natural Diversity Database (CNDDB) and other Biogeographic Information and Observation System (BIOS) rare species occurrence data, and Vegetation Classification and Mapping Program (VegCAMP) vegetation maps/landcover data. A full list of the datasets included in the ACE analysis is included in the technical report: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=24326.
ArcGIS item properties
* Name Statewide Terrestrial Irreplaceability Summary - ACE [ds1334]
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -124.506169
* East longitude -113.498451
* North latitude 42.068507
* South latitude 32.423781
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -373987.932700
* East longitude 540034.260500
* South latitude -604495.794300
* North latitude 450023.161800
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Individual's name Melanie Gogol-Prokurat
Organization's name California Department of Fish and Wildlife
Contact's position Conservation Analysis Unit Coordinator
Contact's role point of contact


Contact information
Phone
Voice (916) 324-9265

Address
e-mail address melanie.gogol-prokurat@wildlife.ca.gov



Resource Maintenance

Resource maintenance
Update frequency unknown


Resource Constraints

Constraints
Limitations of use

The ACE data is subject to certain assumptions and limitations that must be considered in any use or application of the data. All ACE data layers are limited by the accuracy and scale of the input data. ACE is a compilation of the best available scientific information; however, many of these datasets are not comprehensive across the landscape, may change over time, and should be revised and improved as new data become available.

The user accepts sole responsibility for the correct interpretation and use of these data, and agrees not to misrepresent these data. CDFW makes no warranty of any kind regarding these data, express or implied. By downloading these datasets, the user understands that these data are in draft condition and subject to change at any time as new information becomes available. The user will not seek to hold the State or the Department liable under any circumstances for any damages with respect to any claim by the user or any third party on account of or arising from the use of data or maps. CDFW reserves the right to modify or replace these datasets without notification.

The ACE maps display biological and recreational values based on available data and constrained by the limitations of the data. The values may be influenced by level of survey effort in a given area. The ACE data represent broad-scale patterns across the landscape, and the value of any single hexagon should be interpreted with caution. ACE is a decision-support tool to be used in conjunction with species-specific information and local-scale conservation prioritization analyses.

The ACE maps do not replace the need for site-specific evaluation of biological resources and should not be used as the sole measure of conservation priority during planning. No statement or dataset shall by itself be considered an official response from a state agency regarding impacts to wildlife resulting from a management action subject to the California Environmental Quality Act (CEQA).


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 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 8.8(9.3.1.2)


Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name DS1334_20180123
* Object type composite
* Object count 0



ArcGIS Feature Class Properties
Feature class name DS1334_20180123
* Feature type Simple
* Geometry type Polygon
* Has topology FALSE
* Feature count 0
* Spatial index TRUE
* Linear referencing FALSE



Geoprocessing history

Process
Date 2018-01-2312:53:41
Tool location c:\program files (x86)\arcgis\desktop10.5\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Process
Date 2018-01-2313:18:00
Tool location c:\program files (x86)\arcgis\desktop10.5\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Distribution

Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location https://www.wildlife.ca.gov/Data/BIOS
Function performed information

Online source
Location https://map.dfg.ca.gov/ace/
Function performed information

Online source
Location ftp://ftp.wildlife.ca.gov/BDB/GIS/BIOS/Public_Datasets/1300_1399/ds1334.zip
Function performed download

Fields

Details for object DS1334_20180123
* Type Feature Class
* Row count 0


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 Hex_ID
* Alias Hex_ID
* Data type Double
* Width 8
* Precision 38
* Scale 8




Field ECO_SECT
* Alias Eco_Sect
* Data type String
* Width 8
* Precision 0
* Scale 0
Field description
code for the USDA ecoregion in which the majority of the hex falls in.


Field COUNTY
* Alias County
* Data type String
* Width 20
* Precision 0
* Scale 0
Field description
name of the county that the majority of the hexagon falls in.


Field ECO_NAME
* Alias Eco_Name
* Data type String
* Width 254
* Precision 0
* Scale 0
Field description
the name of the USDA ecoregion that the majority of the hex falls in.


Field JEPSON_ECO
* Alias Jepson_Eco
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
name of the Jepson ecoregion in which the majority of the hex falls in.


Field AmphEndem
* Alias Endemic Amphibian Count
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
count of endemic and near endemic amphibian taxa, as defined by the CDFW Amphibian and Reptile Species of Special Concern Report, in each hexagon. Taxa are defined and aggregated at the taxonomic unit at which they are listed and tracked by the California Natural Diversity Database (CNDDB), which may be by species, subspecies, distinct population segment (DPS), or evolutionarily significant unit (ESU).Taxa are not double counted within the hexagon.


Field ReptEndem
* Alias Endemic Reptile Count
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
count of endemic and near endemic reptile taxa, as defined by the CDFW Amphibian and Reptile Species of Special Concern Report, in each hexagon. Taxa are defined and aggregated at the taxonomic unit at which they are listed and tracked by the California Natural Diversity Database (CNDDB), which may be by species, subspecies, distinct population segment (DPS), or evolutionarily significant unit (ESU).Taxa are not double counted within the hexagon.


Field BirdEndem
* Alias Endemic Bird Count
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
count of endemic and near endemic bird taxa, as defined by the CDFW Bird Species of Special Concern Report, in each hexagon. Taxa are defined and aggregated at the taxonomic unit at which they are listed and tracked by the California Natural Diversity Database (CNDDB), which may be by species, subspecies, distinct population segment (DPS), or evolutionarily significant unit (ESU).Taxa are not double counted within the hexagon.


Field MammEndem
* Alias Endemic Mammal Count
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
count of endemic and near endemic mammal taxa, as defined by the CDFW Mammal Species of Special Concern Report, in each hexagon. Taxa are defined and aggregated at the taxonomic unit at which they are listed and tracked by the California Natural Diversity Database (CNDDB), which may be by species, subspecies, distinct population segment (DPS), or evolutionarily significant unit (ESU).Taxa are not double counted within the hexagon.


Field PlntEndem
* Alias Endemic Plant Count
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
count of plant taxa with a California plant rank of 1B in each hexagon. Plants with a California Rare Plant Rank of 1B are rare throughout their range with the majority of them endemic to California. Plant taxa are defined and aggregated at the taxonomic unit at which they are listed and tracked by the California Natural Diversity Database (CNDDB), which may be by species, or subspecies level.


Field AllTaxaEndem
* Alias AllTaxaEndem
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
count of all endemic and near endemic plants and animal taxa in each hexagon.


Field RwiMaxSW
* Alias Statewide Irreplaceability
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
maximum statewide normalized RWI value for any taxonomic group in each hexagon.


Field RwiMaxEco
* Alias Ecoregion Irreplaceability
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
maximum ecoregionally normalized RWI value for any taxonomic group in each hexagon.


Field RwiRankSW
* Alias Statewide Irreplaceability Rank
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
ranks of 1-5 assigned to the statewide normalized rarity weighted index values, with all zero values removed and remaining values broken into 5 quantiles, each containing the same number of hexagons.


Field RwiRankEco
* Alias Ecoregion Irreplaceability Rank
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
ranks of 1-5 assigned to the ecoregionally normalized rarity weighted index values, with all zero values removed and remaining values broken into 5 quantiles, each containing the same number of hexagons.


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)


Scope of the data described by the metadata * dataset
Scope name * dataset


* Last update 2018-01-23


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 2018-01-2312:53:19
Last modified in ArcGIS for the item 2018-01-2313:15:11


Automatic updates
Have been performed Yes
Last update 2018-01-2313:15:11

Item location history
Item copied or moved 2017-08-0808:56:31
From M:\ACE\ACEIII\DATA\Hexs_v3
To \\WBD2UA524180J\E$\CAU\ACE_3\data\Base_layers\Hexs_v3


Metadata Contacts

Metadata contact
Individual's name Melanie Gogol-Prokurat
Organization's name California Department of Fish and Wildlife
Contact's position Conservation Analysis Unit Coordinator
Contact's role point of contact


Contact information
Phone
Voice (916) 324-9265

Address
e-mail address melanie.gogol-prokurat@wildlife.ca.gov



Metadata Maintenance

Maintenance
Update frequency unknown