Map of Louisiana showing the Vegetation Types of Louisiana Coastal Marshes 1949

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey, National Wetlands Research Center
Publication_Date: 20000400
Title:
Map of Louisiana showing the Vegetation Types of Louisiana Coastal Marshes 1949
Publication_Information:
Publication_Place: Baton Rouge, LA
Publisher:
U.S. Geological Survey, National Wetlands Research Center Coastal Restoration Project Office
Larger_Work_Citation:
Citation_Information:
Originator: Ted O'Neil
Publication_Date: 19490000
Title:
The Muskrat in the Louisiana Coastal Marshes; a study of the ecological, geological, biological, tidal and climatic factors governing the production and management of the muskrat industry in Louisiana.
Publication_Information:
Publication_Place: New Orleans, LA
Publisher:
Federal Aid Section, Fish and Game Division, Louisiana Department of Wildlife and Fisheries
Description:
Abstract:
This data set consists of a digitized format of an original map entitled "Map of Louisiana showing the Vegetation Type of Louisiana Coastal Marshes 1949". The original data set was collected through visual field observations by Ted O'Neil along north-south transects walked across the coastal marshes and through interviews with landmanagers and trappers of Coastal Louisiana. The marsh type delineation lines were produced by freehanding contour lines on a base map based on this information. The resulting map of the zones was published in the book "The Muskrat in the Louisiana Coastal Marshes" by Ted O'Neil 1949 (This dataset comes as a result of Pitman-Robinson Act funding.) The map was then scanned, rectified using ERDAS Imagine software, and digitized on screen using Arc/Info 7.x. The water category was taken from the original base map.
Purpose:
To have a digital representation of the Map of Louisiana showing the Vegetation Type of Louisiana Coastal Marshes 1949.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19490000
Currentness_Reference: Publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -93.905
East_Bounding_Coordinate: -88.758
North_Bounding_Coordinate: 30.482
South_Bounding_Coordinate: 28.854
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Coastal
Theme_Keyword: Marsh
Theme_Keyword: Vegetation
Theme_Keyword: Muskrat
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Coastal Louisiana
Place_Keyword: Louisiana Coastal Zone
Place_Keyword: Louisiana
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 1949
Access_Constraints:
It is strongly recommended that this data is directly acquired from the distributor described above or from another USGS Biological Resources Division server and not indirectly through other sources which may have changed the data in some way. The distributor makes no claims as to the data's suitability for other purposes.
Use_Constraints:
Acknowledgement of the U.S. Geological Survey, National Wetlands Research Center as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected by users of this data. Sharing new data layers developed directly from these data would also be appreciated by U.S. Geological Survey, National Wetlands Research Center staff. Users should be aware that comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in mapping conventions, data collection, and computer processes over time. The distributor shall not be liable for improper or incorrect use of this data, based on the description of appropriate/inappropriate uses described in this metadata document. These data are not legal documents and are not to be used as such.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Christina Saltus
Contact_Organization: U.S. Geological Survey
Contact_Position: Geographer
Contact_Address:
Address_Type: Mailing address
Address: P.O. Box 25098
City: Baton Rouge
State_or_Province: LA
Postal_Code: 70894
Country: USA
Contact_Voice_Telephone: 225 578-7483
Contact_Facsimile_Telephone: 225 578-7478
Contact_Electronic_Mail_Address: csaltus@usgs.gov
Data_Set_Credit:
The U.S. Geological Survey, National Wetlands Research Center acknowledges the Department of Wildlife and Fisheries and the Department of Public Works for use of the data published for the 1949 Map of the Southern Part of Louisiana showing the Vegetation Types of Louisiana Coastal Marshes.
Native_Data_Set_Environment:
The data set was generated by scanning the original map, rectifying the image in ERDAS Imagine 7.x software, and digitizing in ESRI Arc/Info version 7.x. The operating platform used was UNIX on a SGI Indy workstation.
Cross_Reference:
Citation_Information:
Originator:
Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the U.S. Geological Survey, Biological Resources Division's National Wetlands Research Center.
Publication_Date: 2001
Title: 2001 Louisiana Coastal Marsh-Vegetative Type Map (Database)
Edition: 2001
Publication_Information:
Publication_Place: Lafayette, LA
Publisher:
Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the U.S. Geological Survey's National Wetlands Research Center.
Cross_Reference:
Citation_Information:
Originator: Louisiana Department of Wildlife and Fisheries
Publication_Date: 19970601
Title: Louisiana Coastal Marsh Vegetative Type Data Set 1997
Edition: 1997
Publication_Information:
Publication_Place: New Iberia, LA
Publisher: Louisiana Department of Wildlife and Fisheries
Cross_Reference:
Citation_Information:
Originator:
Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the U.S. Geological Survey, National Wetlands Research Center.
Publication_Date: 20000331
Title: 1988 Louisiana Coastal Marsh Vegetative Type Map (database)
Edition: 1988
Publication_Information:
Publication_Place: Lafayette, Louisiana, USA
Publisher:
Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the U.S. Geological Survey's National Wetlands Research Center.
Cross_Reference:
Citation_Information:
Originator: Louisiana Department of Wildlife and Fisheries
Publication_Date: 19780800
Title: Vegetation Type Map of Louisiana Coastal Marshes 1978
Geospatial_Data_Presentation_Form: Map
Edition: 1978
Publication_Information:
Publication_Place: New Orleans, LA
Publisher: Louisiana Department of Wildlife and Fisheries
Cross_Reference:
Citation_Information:
Originator: Louisiana Wildlife and Fisheries Commission
Publication_Date: 19680800
Title: Vegetation Type Map of the Louisiana Coastal Marshes 1968
Edition: First
Publication_Information:
Publication_Place: New Orleans, LA
Publisher: Louisiana Wildlife and Fisheries Commission
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The accuracy is not based on a formal quantitative assessment and was based on the judgement of the data collector in the field.
Logical_Consistency_Report:
A visual hard copy to screen comparison was made to ensure polygon attribute accuracy and that no polygons were excluded or have missing labels.
Completeness_Report:
All zones listed in the legend of the map "Map of Louisiana showing the Vegetation Type of Louisiana Coastal Marshes 1949" were digitized. All water bodies within zonal boundaries and that are easily recognizable on the base map were digitized. Rivers were not included.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Positional accuracy is determined by the source data.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: Not applicable.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Ted O'Neil
Publication_Date: 19490000
Title:
1949 Map of the Southern Part of Louisiana showing the Vegetation Types of Louisiana Marshes
Geospatial_Data_Presentation_Form: Map
Publication_Information:
Publication_Place: New Orleans, LA
Publisher: Louisiana Department of Wildlife and Fisheries
Source_Scale_Denominator: 500,000
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19490000
Source_Currentness_Reference: Publication Date
Source_Citation_Abbreviation: LDWF
Source_Contribution: The primary source for the data set.
Process_Step:
Process_Description:
The original data set was collected through visual field observation by Ted O'Neil. The resulting map was scanned and then rectified using ERDAS Imagine software. The resulting image was used to digitize the vegetation zones using ESRI Arc/Info 7.x.
Process_Date: 20000406
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Christina Saltus
Contact_Organization:
USGS/BRD National Wetlands Research Center - Coastal Restoration Project Office
Contact_Position: Geographer
Contact_Address:
Address_Type: Mailing Address
Address: P.O. Box 25098
City: Baton Rouge
State_or_Province: LA
Postal_Code: 70894
Country: USA
Contact_Voice_Telephone: 225 578-7483
Contact_Facsimile_Telephone: 225 578-7478
Contact_Electronic_Mail_Address: csaltus@usgs.gov
Hours_of_Service: Monday thru Friday, 8am to 5pm CST
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: Louisiana Coastal Zone
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Ring composed of arcs
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 15
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: .9996
Longitude_of_Central_Meridian: -93.0
Latitude_of_Projection_Origin: 0
False_Easting: 500000
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 6.35
Ordinate_Resolution: 6.35
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: 1949 Vegetation Marsh Types of South Louisiana
Entity_Type_Definition:
An indicator of soil and water salinity of an area and comprised of plant species having similar salt tolerances
Entity_Type_Definition_Source: Louisiana Coastal Marsh Vegetation Type Map 1949
Attribute:
Attribute_Label: Marsh
Attribute_Definition: Vegetative Marsh Types
Attribute_Definition_Source:
Map of Southern Part of Louisiana showing the Vegetation Types of Louisiana Marshes 1949
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Fresh Water Marsh
Enumerated_Domain_Value_Definition:
The fresh water marshes primarily support fresh water vegetation. It is comparatively poor muskrat habitat, and more important for mink, raccoon, and wintering waterfowl. The recently introduced nutria (Myocastor coypu) have chosen this type of marsh as their most desirable habitat. The vegetative species on the Mississippi Delta are as follows: cattail, roseau cane, fresh marsh three-cornered grass, dog-tooth grass, yellow cutgrass, oyster grass adapted to both fresh and salt water marsh, and delta duck potato. At present the Delta is completely dominated by alligator grass and water hyacinth, two exotics that are rapidly making a place for themselves in the coastal marshes.
Enumerated_Domain_Value_Definition_Source:
Map of the Southern Part of Louisiana showing the Vegetation Types of Louisiana Marshes 1949.
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Floating Fresh Marsh
Enumerated_Domain_Value_Definition:
Floating fresh marshes are dominated by canouche, but the clay pan has subsided, leaving the marsh crust suspended on a sea of very loosely connected vegetative muck.
Enumerated_Domain_Value_Definition_Source:
Map of the Southern Part of Louisiana showing Vegetation Types of the Louisiana Marshes 1949
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Excessively Drained Salt Marshes
Enumerated_Domain_Value_Definition:
Marshes excessively drained by many tidal bayous give rise to rapid tidal fluctuations and marine deposits, which tend to elevate the marsh floor two to six inches above the muskrat producing area. Such marshes are practically without value as muskrat habitat. They produce some low quality raccoon and mink, but are excellent clapper rail habitat in the coastal marshes. Outstanding vegetation: Black rush (Juncus romemerianus), wiregrass (Spartina patens), oyster grass, and occasional clumps or stalks of saw grass. Salinities range from extremely saline to brackish.
Enumerated_Domain_Value_Definition_Source:
Map of the Southern Part of Louisiana showing Vegetation types of the Louisiana Marshes 1949
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Brackish Three-Cornered Grass Marsh
Enumerated_Domain_Value_Definition:
At near normal high tide level the brackish three-cornered grass peat marshes produce approximately 80% of the State's muskrat crop. The vegetation is predominately three-cornered grass (Scirpus olneyi), but it will revert to its climax species, wiregrass, if not properly burned at least every other year. Such marshes are also fair producers of mink and raccoon; they are also average waterfowl habitat. The three-cornered grass marsh extending from the east end of Marsh Island to Sabine Pass is the most important wintering range for blue geese.
Enumerated_Domain_Value_Definition_Source:
Map of the Southern Part of Louisiana showing Vegetation Types of the Louisiana Marshes 1949.
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Floating Three-Cornered Grass Marsh
Enumerated_Domain_Value_Definition:
This type of marsh is equally as productive as the nonfloating areas for shore periods of time. Muskrat populations will more rapidly denude the floating marshes of their food plants, thus creating extremely rotten, broken marshes which remain unproductive for longer periods than do the marshes with solid foundation.
Enumerated_Domain_Value_Definition_Source:
Map of Southern Part of Louisiana showing Vegetation Types of the Louisiana Marshes 1949
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Intermediate Marsh
Enumerated_Domain_Value_Definition:
Marshes in a balance between brackish and fresh support a wide variety of vegetative species. The outstanding species are saw grass, roseau cane, cattail, and bulrush. From a distance this marsh appears to contain only these taller species, however, upon close examination one finds three-cornered grass, wiregrass, bull-tongue, and hogcane. Occasionally when adjoining three-cornered grass marshes are heavily populated with muskrat, these areas are very productive, but only for a short period.
Enumerated_Domain_Value_Definition_Source:
Map of the Southern Part of Louisiana showing Vegetation Types of the Louisiana Marshes 1949
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Leafy Three-cornered Grass or Coco Marsh
Enumerated_Domain_Value_Definition:
A coco (Scirpus Robustus) marsh is second to a brackish three-cornered grass marsh in muskrat productivity. Coco is also a subdominant species and difficult to produce. Wiregrass generally overpowers this valuable muskrat, waterfowl, and goose food plant. Hogcane is also an associated in this type marsh, generally dominating the higher bayou banks and ridges.
Enumerated_Domain_Value_Definition_Source:
Map of the Southern Part of Louisiana showing the Vegetation Types of Louisiana Marshes 1949
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Saw Grass Marsh
Enumerated_Domain_Value_Definition:
Other species appearing in this marsh are cattail, bulrush, roseau cane, bull-tongue, hogcane, and spike rush with yellow cutgrass near the ridges. This is considered deep marsh. Water levels range from plus 4" to plus 15". Where water control is possible and salt or brackish water is available, this type marsh can be converted to a three-cornered grass marsh. This area produced the greater portion of mink in the western part of the State.
Enumerated_Domain_Value_Definition_Source:
Map of the Southern Part of Louisiana showing the Vegetation Types of Louisiana Marshes 1949
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sea Rim
Enumerated_Domain_Value_Definition:
This is made up of sand and shell deposits. Note the stranded sea rim of Pecan Island and Grand Cheniere. There are many low or completely submerged sea rims throughout the marshes of Cameron and Vermilion Parishes.
Enumerated_Domain_Value_Definition_Source:
Map of the Southern Part of Louisiana showing the Vegetation Types of Louisiana Marshes 1949
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Water
Enumerated_Domain_Value_Definition: Open water areas
Enumerated_Domain_Value_Definition_Source:
Modified Official Base Map of Louisiana, Department of Public Works, 1944.
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Levee
Enumerated_Domain_Value_Definition: Levees
Enumerated_Domain_Value_Definition_Source:
Modified Official Base Map of Louisiana, Department of Public Works, 1944
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Salt Dome
Enumerated_Domain_Value_Definition: Salt Dome
Enumerated_Domain_Value_Definition_Source:
Modified Official Base Map of Louisiana, Department of Public Works, 1944
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Other
Enumerated_Domain_Value_Definition: Areas that are non-marsh
Enumerated_Domain_Value_Definition_Source:
Modified Official Base Map of Louisiana, Department of Public Works, 1944.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Steve Hartley
Contact_Organization: USGS
Contact_Position: Geographer/GIS Analyst
Contact_Address:
Address_Type: mailing and physical address
Address: 700 Cajundome Blvd
City: Lafayette
State_or_Province: LA
Postal_Code: 70506
Country: USA
Contact_Voice_Telephone: 337 266-8543
Contact_Facsimile_Telephone: 337 266-8616
Contact_Electronic_Mail_Address: steve_hartley@usgs.gov
Hours_of_Service: Monday thru Friday, 8am to 5pm CST
Resource_Description: 1949 Vegetation Marsh Types of South Louisiana
Distribution_Liability:
Although these data have been processed successfully on a computer system at the U.S. Geological Survey, National Wetlands Research Center, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from a Biological Resources Division server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. U.S. Geological Survey, National Wetlands Research Center shall not be held liable for improper or incorrect use of the data described and/or contained herein. So, these data are provided "as is" and without any express or implied warranties, including, without limitation, the implied warranties or merchantability and fitness for a particular purpose. Also, use of trade names or commerical products in this metadata is solely for the purpose of providing specific information, and does not imply recommendation or endorsement by the US Government. Any downloading and use of these data signifies a user's agreement to comprehension and compliance of the U.S. Geological Survey, National Wetlands Research Center Standard Disclaimer. Insure all portions of metadata are read and clearly understood before using these data in order to protect both user and U.S. Geological Survey, National Wetlands Research Center interests.

Metadata_Reference_Information:
Metadata_Date: 20000406
Metadata_Review_Date: 20030709
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Christina Saltus
Contact_Organization: USGS
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 25098
City: Baton Rouge
State_or_Province: La
Postal_Code: 70894
Country: USA
Contact_Voice_Telephone: 225 578-7483
Contact_Facsimile_Telephone: 225 578-7478
Contact_Electronic_Mail_Address: csaltus@usgs.gov
Metadata_Access_Constraints: None
Metadata_Use_Constraints:
Acknowledgement of the National Wetlands Research Center as the metadata source would be appreciated. Please cite the original metadata when using portions of the record to create a similar record of slightly altered data, such as reprojection.
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Generated by mp version 2.7.33 on Thu Jul 21 09:27:26 2005