CHTD_SecondarySpecies_web_m_aux

Metadata:

Identification Information:

Citation:
Citation Information:
Title:
CHTD_SecondarySpecies_web_m_aux
Geospatial Data Presentation Form: raster digital data
Description:
Abstract:
The Comprehensive Habitat Type Dataset was developed by merging NOAA Benthic Habitat Atlas (BHA), Ecological Mapping Systems of Texas (aka Texas Ecological Systems Database, TESD), and National Wetlands Inventory (NWI) data within the study area for the ICF 2012 project (CGP LCC 2012-002 Employing the Conservation Design Approach on Sea-Level Rise Impacts on Coastal Avian Habitats along the Central Texas Coast). BHA data was used to depict mangroves, oysters, and patchy, continuous, and discontinuous seagrass beds where BHA existed within the study area. NWI data was used for all wetland/intertidal environments where NWI data existed within the study area. TESD data was used for all upland environments, and weltand/intertidal and/or benthic environments where NWI or BHA data did not exist. Land cover types were given easy to understand names, and arranged hierarchically into three levels-- Micro-, Meso-, and MacroHabitat Types. Using qualititative avian habitat use information from literature as well as spatially explicit habitat use data when available, MicroHabitat Types were then indexed for potential use by each avian species considered. The habitat use index is a theoretical representation of an expected third order habitat selection process. Habitat types were assigned a value of 3, representing high use, uf the species was expected to be encountered in a patch of that type with high frequency and/or great abundance. Habitat types were assigned a value of 2, or low use, if the species was expected to be found in that habitat type patch in low frequency and/or abundance. A value of 1 was assinged to habitat types that were expected to receive only occasional, irregular, or incidental use by a species.As a response to reviewers' comments in previous versions of this data, the CHTD was separated into four datasets: CHTD_FocalSpecies shows use index values for species with spatically explicit information (i.e. known territory size or species density) and known third order habitat selection (actual or theoretical). CHTD_SecondarySpecies shows use index values for species of concern whose spatial needs or third order habitat selection were not well known or documented in the scientific literature. CHTD_WhoopingCrane was developed specifically for the Whooping Crane, wherein estuarine water habitats deeper than .3 m (known to go unused by Whooping Cranes) were removed. CHTD_ApFa_AvoidWoodland was developed by removing any potential habitat within 1 mi of woodland habitats (known to be avoided by Aplomado Falcons). For more information, please see: Smith, E. H., F. Chavez-Ramirez, J. Gibeaut, L. Lumb, 2014. Employing the conservation design approach on sea-level rise impacts on coastal avian habitats along the Central Texas Coast. The Wildlife Management Institute for the Gulf Coast Praries Landscape Conservation Cooperative, Final report. http://gulfcoastprairielcc.org/science/science-projects/studying-the-effects-of-sea-level-rise-in-coastal-texas/
Purpose:
This dataset was developed to fulful a need for a thematically and spatially high-resolution land cover dataset for the purposes of evaluating potential avian habitat along the central Texas coast.
Spatial Domain:
Description of Geographic Extent:
Bounding Coordinates:
West Bounding Coordinate: -97.433900
East Bounding Coordinate: -96.053100
North Bounding Coordinate: 28.934510
South Bounding Coordinate: 27.780145
Keywords:
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Categories
Theme Keyword: environment
Theme Keyword: planningCadastre
Access Constraints: None
Use Constraints:
Although this dataset has been produced and processed from sources believed to be reliable, no warranty, expressed or implied, is made regarding accuracy, adequacy, completeness, legality, reliability or usefulness of any information. This disclaimer applies to both isolated and aggregate uses of the information. This data is provided on an "as is" basis. All warranties of any kind, express or implied, including but not limited to the implied warranties of merchantability, or fitness for a particular purpose are disclaimed. Changes may be periodically made to the information herein; these changes may or may not be incorporated in any new version of the publication. Be aware that electronic data can be altered subsequent to original distribution. Data can also quickly become out of date. It is recommended that careful attention be paid to the contents of any data associated with a file, and that the originator of the data or information be contacted with any questions regarding appropriate use. It is strongly advised that in-situ verification of land cover or habitat type data be performed at the onset of any conservation planning activities.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Harte Research Institute, Texas A&M-Corpus Christi
Contact Person: Luz Lumb
Contact Address:
Address Type: unknown
Address: 6300 Ocean Dr., Unit 5869
City: Corpus Christi
State or Province: TX
Postal Code: 78412
Contact Voice Telephone: 361-825-2062
Contact Electronic Mail Address: luz.lumb@tamucc.edu
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: International Crane Foundation
Contact Person: Liz Smith
Contact Electronic Mail Address: esmith@savingcranes.org
Data Set Credit:
Luz Lumb, James Gibeaut, Liz Smith, Felipe Chavez-Ramirez
Native Data Set Environment:
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.2.3552
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Data Quality Information:

Attribute Accuracy:
Attribute Accuracy Report:
The Composite Habitat Type Database combines land cover classifications from three sources- the Ecological Systems Classification and Mapping System of Texas, the National Wetlands Inventory, and NOAA’s Benthic Habitat Atlas.

The stated accuracy of the land cover data from the Ecological Systems Classification and Mapping System of Texas was 72% accurate in terms of land cover, 68% accurate at the ecological system level, and 60% accurate at the level of mapped vegetation type. In the report accompanying this data, it is stated that the level of accuracy for this particular area was lower than in other geographical regions of Texas due to the relative difficulty in ground-truthing model outputs. Additional sources of error for the TESD include inaccurate county-level soil maps used in the development of the Ecological Systems Classification and Mapping System and wide natural variation in shrubland types across the study area. The accuracy analysis for the TESD did not include many easy to classify land cover types such as open water or urban areas.

For the NOAA Benthic Habitat Atlas, a contract standard accuracy of 80% was required. According to the accuracy report accompanying the data, overall thematic map deterministic accuracy was 90%. Classification accuracy of all land cover types exceeded the contract standard 80%, except emergent marsh, which was 76%.

Accuracy of the National Wetlands Inventory data was not possible to ascertain, as the NWI data within the study area was compiled and revised by several researchers in sections using historic wetland maps and aerial imagery from the 1950’s up to 2008. All reports associated with NWI data acknowledge a continuing need for revision of NWI data as new imagery and data becomes available. Issues with accurate classification and delineation of wetlands include map registration differences between historical imagery and more recent digital photography used to develop wetland maps and a previous classification scheme that combined estuarine intertidal emergent wetlands and intertidal flats into a single map unit.

All land cover datasets used in the compilation of the Composite Habitat Type Database are accompanied by a recommendation that users verify mapped land cover types on the gound before undertaking any land use planning or decision making processes. The same recommendation is applied to the Composite Habitat Type Database.
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Spatial Data Organization Information:

Direct Spatial Reference Method:

Raster
Raster Object Information:
Raster Object Type: Grid Cell
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Spatial Reference Information:

Horizontal Coordinate System Definition:
Planar:
Map Projection:
Map Projection Name: WGS 1984 Web Mercator Auxiliary Sphere
Planar Coordinate Information:
Planar Coordinate Encoding Method: coordinate pair
Coordinate Representation:
Abscissa Resolution: 0.000000006714873101998366
Ordinate Resolution: 0.000000006714873101998366
Planar Distance Units: meter
Geodetic Model:
Horizontal Datum Name: D WGS 1984
Ellipsoid Name: WGS 1984
Semi-major Axis: 6378137.0
Denominator of Flattening Ratio: 298.257223563
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Entity and Attribute Information:

Detailed Description:
Entity Type:
Entity Type Label: VAT_CHTD_SecondarySpecies_web_m_aux
Attribute:
Attribute Label: OBJECTID
Attribute Definition:
Internal feature number.
Attribute Definition Source:
ESRI
Attribute Domain Values:
Unrepresentable Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: Value
Attribute:
Attribute Label: Count
Attribute:
Attribute Label: Microhabitat
Attribute:
Attribute Label: Mesohabitat
Attribute:
Attribute Label: Macrohabitat
Attribute:
Attribute Label: HUGO_idx
Attribute:
Attribute Label: TCHE_idx
Attribute:
Attribute Label: LBHE_idx
Attribute:
Attribute Label: CLRA_idx
Attribute:
Attribute Label: NOPI_idx
Attribute:
Attribute Label: REDH_idx
Attribute:
Attribute Label: UPSA_idx
Attribute:
Attribute Label: LBCU_idx
Attribute:
Attribute Label: REEG_idx
Attribute:
Attribute Label: BLSK_idx
Attribute:
Attribute Label: SATE_idx
Attribute:
Attribute Label: ROTE_idx
Attribute:
Attribute Label: MODU_idx
Attribute:
Attribute Label: BLRA_idx
Attribute:
Attribute Label: WTHA_idx
Attribute:
Attribute Label: OYCA_idx
Attribute:
Attribute Label: WESA_idx
Attribute:
Attribute Label: PIPL_idx
Attribute:
Attribute Label: WIPL_idx
Attribute:
Attribute Label: Red
Attribute:
Attribute Label: Green
Attribute:
Attribute Label: Blue
Attribute:
Attribute Label: MesohabitatCode
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Metadata Reference Information:

Metadata Date: 02/25/2015
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Harte Research Institute, Texas A&M University-Corpus Christi
Contact Person: Luz Lumb
Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time
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