TurtleNests_SC

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: South Carolina Department of Natural Resources; Wildlife and Freshwater Fisheries Division
Publication_Date: 20130101
Title:
TurtleNests_SC
Geospatial_Data_Presentation_Form: vector digital data
Description:
Abstract:
The South Carolina Department of Natural Resources (SCDNR) has been monitoring sea turtle nests since the 1970's and authorizes and trains participants to survey the beach to locate sea turtle nests. They also relocate nests when necessary, protect nests with predator-proof screening, monitor nests during incubation, and inventory nests after they emerge to determine hatch success. Nest protection project participants include individuals that belong to beach front communities, conservation organizations, federal, state, or local agencies and universities. All nests are verified by the presence of eggs or hatching activity. Standardized ground surveys are conducted daily starting in May. Participants are required to collect data on all nests including the species of turtle that laid the nest, date laid, and other management information. Additional information can be found at http://www.seaturtle.org/nestdb/index.shtml?view=2 . All nests reported for this dataset were laid by loggerheads between 2006 and 2011. This dataset does not include information for all turtle nesting areas on the coast. Turtles nest on all SC beaches, but only beaches with at least one year of surveys were mapped and used to calculate mean annual nest densities. Nesting data is reported as mean annual density (nest count/km.) for each beach and spans the years 2006 to 2011. If there were two or more years, the coefficient of variance of the mean was also provided.
Purpose:
This GIS data set was created for the purpose of describing the relative densities of loggerhead (Caretta caretta) sea turtle nests on beaches surveyed from 2006-2011 along the southeastern coastline so that these biological resources can be considered for any planned energy development or other coastal use activities.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20060101
Ending_Date: 20110101
Currentness_Reference:
ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -80.876888
East_Bounding_Coordinate: -78.554212
North_Bounding_Coordinate: 33.873010
South_Bounding_Coordinate: 32.059078
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: nesting
Theme_Keyword: sea turtle
Theme_Keyword: loggerhead
Theme_Keyword: caretta
Theme_Keyword: nest density
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: South Carolina
Access_Constraints: None
Use_Constraints:
Neither the State of South Carolina, the Department of Natural Resources, nor any of its employees, is responsible for any improper or incorrect use of the information described and/or contained herein, and assume no responsibility for the use of the information. The South Carolina Department of Natural Resources should be acknowledged as the data source in products derived from these data. Use and interpretation of the data should be reviewed with the SCDNR sea turtle program coordinator.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: SCDNR, Wildlife and Freshwater Fisheries Division
Contact_Person: DuBose B. Griffin
Contact_Position: SC Sea Turtle Coordinator
Contact_Address:
Address_Type: mailing
Address:
PO Box 12559
City: Charleston
State_or_Province: SC
Postal_Code: 29466
Country: US
Contact_Voice_Telephone: 843-953-9016
Contact_Electronic_Mail_Address: griffind@dnr.sc.gov
Native_Data_Set_Environment:
Version 6.2 (Build 9200) ; Esri ArcGIS 10.1.0.3035
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
All nests were verified by the presence of eggs or signs of emergenece at the end of incubation. Each year, it is estimated that approximately 7% of nests are undetected.
Completeness_Report:
Years Surveyed: Of the 35 surveyed beaches identified in this dataset, 11 were not surveyed for the entire time period between 2006-2011. These include Waties, North Myrtle Beach, Garden City, North, Sand, Bull, Capers, Otter, Pritchards, St. Phillips, and Bay Point. Of the 46 beaches/barrier islands in SC where loggerhead sea turtles nest, standardized surveys were completed on 35 of these beaches for at least one year between 2006 and 2011. These 35 beaches are included in this dataset. The remaining 11 beaches/barrier islands are not included in this dataset.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The approximate location and extent of each beach survey was drawn using 2012 USDA NAIP photography. The boundaries were drawn using information from the various survey teams as reference. The extent of each surveyed beach was marked using either landmarks or a GPS if it did not cover the entire beach. The length of the beach drawn represents the approximate longest extent of the survey based on beach size in the 2012 imagery.
Lineage:
Process_Step:
Process_Description:
Nest Counts: Nest count data were collected during ground surveys by trained and permitted volunteers, paid staff from conservation organizations, federal, state, or local agencies and universities. Most surveys were performed at sunrise when field signs are clearest. The extents of the surveys were noted by various methods (GPS, landmarks, odometers, etc). All nests were verified by the presence of eggs or signs of emergence at the end of incubation. Data from 2009, 2010, and 2011 were entered into an online database management system (http://www.seaturtle.org/nestdb/?view=2).
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: SCDNR, Wildlife and Freshwater Fisheries Division
Contact_Person: DuBose Griffin
Contact_Position: SC Sea Turtle Coordinator
Contact_Address:
Address_Type: mailing
Address:
PO Box 12559
City: Charleston
State_or_Province: SC
Postal_Code: 29422
Country: US
Contact_Voice_Telephone: 843-953-9016
Contact_Electronic_Mail_Address: griffind@dnr.sc.gov
Process_Step:
Process_Description:
Shoreline Digitization: The linear extent of the survey was digitized using the 2012 USDA NAIP photography of South Carolina as a basemap. It was digitized at a scale of approximately 1:25000. The derived line approximates the greatest extent of the surveys completed between 2006 and 2011, and is based on information provided by the survey teams. Where visible on the imagery, the line follows the high tide line.
Process_Date: 20130101
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: SCDNR, Marine Resources Division, MRRI
Contact_Person: Jessica Boynton
Contact_Position: GIS Manager I
Contact_Address:
Address_Type: mailing
Address:
P.O. Box 12559
City: Charleston
State_or_Province: SC
Postal_Code: 29422
Country: US
Contact_Voice_Telephone: 843-953-9163
Contact_Facsimile_Telephone: 843-953-9820
Contact_Electronic_Mail_Address: boyntonj@dnr.sc.gov
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 35
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Transverse Mercator
Transverse_Mercator:
Transverse Mercator
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -81.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.0001
Ordinate_Resolution: 0.0001
Planar_Distance_Units:
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: TurtleNests_SC
Entity_Type_Definition:
Linear extent of sea turtle nest surveys on regularly monitored SC beaches (2006-2011).
Entity_Type_Definition_Source:
SCDNR
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: Shape
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: LocID
Attribute_Definition:
ID number given based on location on the coast (the lowest ID is the northernmost beach)
Attribute_Definition_Source:
SCDNR
Beginning_Date_of_Attribute_Values: 2006
Ending_Date_of_Attribute_Values: 2011
Attribute:
Attribute_Label: Location
Attribute_Definition:
Name of South Carolina beach surveyed
Attribute_Definition_Source:
SCDNR
Beginning_Date_of_Attribute_Values: 2006
Ending_Date_of_Attribute_Values: 2011
Attribute:
Attribute_Label: Mean_NestD
Attribute_Definition:
Mean nest density for each beach was calculated by dividing the sum of the annual nest densities by the total number of survey years. The annual nest density (nests per kilometer) for each beach was calculated by dividing the total nest count by the daily survey length in kilometers. Nest counts are provided for beaches that met the following standardized criteria: (1) nest surveys were initiated in May, (2) surveys were conducted daily through the nesting season although 1-3 days may have been missed due to logistical difficulties, and (3) the survey area was standardized throughout the length of the study although we allowed for small changes in beach length (± 0.5 km).
Attribute_Definition_Source:
SCDNR
Beginning_Date_of_Attribute_Values: 2006
Ending_Date_of_Attribute_Values: 2011
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Beach length accuracy is variable and dependent on the method used to measure the survey extent or beach length (GPS, odometer, etc)
Attribute:
Attribute_Label: N_YearsSur
Attribute_Definition:
The number of years from 2006-2011 that a beach was surveyed and included in the Mean_NestD calculation
Attribute_Definition_Source:
SCDNR
Beginning_Date_of_Attribute_Values: 2006
Ending_Date_of_Attribute_Values: 2011
Attribute:
Attribute_Label: CV
Attribute_Definition:
Coefficient of Variance for Mean_NestD
Beginning_Date_of_Attribute_Values: 2006
Ending_Date_of_Attribute_Values: 2011
Attribute:
Attribute_Label: Shape_Length
Attribute_Definition:
Length of feature in internal units.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Positive real numbers that are automatically generated.
Beginning_Date_of_Attribute_Values: 2006
Ending_Date_of_Attribute_Values: 2011
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: South Carolina Department of Natural Resources
Contact_Position: Spatial Data Manager
Contact_Address:
Address_Type: mailing
Address:
P.O. Box 167
Address:
Rembert C. Dennis Building
City: Columbia
State_or_Province: SC
Postal_Code: 29202
Country: US
Contact_Voice_Telephone: 803-734-9100
Contact_Facsimile_Telephone: 803-734-7001
Contact_Electronic_Mail_Address: gisman@dnr.sc.gov
Distribution_Liability:
See access and use constraints information.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: File Geodatabase Feature Class
Digital_Transfer_Option:
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Metadata_Reference_Information:
Metadata_Date: 20130218
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: SCDNR, Marine Resources Division, MRRI
Contact_Person: Jessica Boynton
Contact_Position: GIS Manager I
Contact_Address:
Address_Type: physical
Address:
217 Fort Johnson Rd.
City: Charleston
State_or_Province: SC
Postal_Code: 29412
Country: US
Contact_Voice_Telephone: 843-953-9163
Contact_Facsimile_Telephone: 843-953-9820
Contact_Electronic_Mail_Address: boyntonj@dnr.sc.gov
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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