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Benthic habitat characterization and habitat use of threatened and endangered sea turtles in Marine Protected Areas of the Greater Everglades

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Kristen Hart, Michael Cherkiss, Autumn Sartain, Ikuko Fujisaki
Publication_Date: 2014
Title:
Benthic habitat characterization and habitat use of threatened and endangered sea turtles in Marine Protected Areas of the Greater Everglades
Geospatial_Data_Presentation_Form: maps and data
Online_Linkage:
https://sofia.usgs.gov/projects/index.php?project_url=hab_seaturtles
Description:
Abstract:
Institution of marine protected areas (MPAs) in which human use is highly regulated has become a priority management tool for at-risk coral reef habitats. The effectiveness of MPAs may be heavily dependent upon reserve factors such as size, placement or location, and enforcement of protected area boundaries, as well as whether adequate protection for vulnerable life stages of key species is provided in protected habitats. In the Dry Tortugas National Park (DRTO), several MPAs have been established to protect natural and fisheries resources and associated coral reef habitats. This project proposed exploratory research to conduct a coupled habitat + species sampling project within and around the new Research Natural Area (RNA) or DRTO. Specifically, we will assess use of habitat in and around no-take areas of the RNA by several species of federally endangered sea turtles (i.e., greens, (Chelonia mydas), hawksbills (Eretmochelys imbricata) and loggerheads (Caretta caretta)), Green turtles are almost exclusively herbivores, consuming seagrasses and algae, Hawksbills eat sponges, and thus are found associated with coral reefs and sponge cover, and Loggerheads feed on benthic invertebrates such as lobsters and crabs, as well as on fishery discards. Thus, these species are directly linked to key habitats of interest in DRTO and the surrounding waters. All three species are particularly suiteable for immediate monitoring because they also nest on sandy upland aeas of the Tortugas Islands.
Purpose:
Specific objectives of the project are as follows:
-Monitor movement of turtles across an array of ~80 acoustic receivers deployed in and around the Dry Tortugas. We continue to quantitatively determine patterns of endangered sea turtle habitat use inside and outside the RNA by instrumenting turtles with both acoustic and satellite tags and analyzing data collected on our own receivers (N=7) and those of our partners (N=72). With acoustically-logged data, we are assessing the proportion of time each turtle spends inside the RNA, and with satellite-derived data, we are assessing the proportion of time each turtle spends outside the RNA or in areas not adjacent to acoustic receivers. Such information will be important for Park managers to assess appropriateness of current RNA boundaries for these high-profile endangered species.
-Integrate with USGS Coral Reef Ecosystem Studies (CREST) Project high-resolution benthic mapping project (led by PI Dave Zawada) to characterize benthic cover in areas where turtles are concentrating or repeatedly visiting. This coverage is a novel use of the Along-Track-Reef-Imaging-System (ATRIS) and a component of sea turtle habitat use studies that has been lacking to date.
-Include a molecular genetic component in our project to develop an understanding of the linkages and connections among endangered sea turtles using DRTO and potentially other protected areas in the U.S. (i.e., Everglades National Park (ENP), Florida Keys National Marine Sanctuary (FKNMS)) and other countries. Such information is necessary for overall sea turtle population restoration and recovery efforts.
-Include a diet component in our project to assess direct use of park resources by sea turtles.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2009
Ending_Date: 2014
Currentness_Reference: ground condition
Status:
Progress: In work
Maintenance_and_Update_Frequency: Unknown
Spatial_Domain:
Description_of_Geographic_Extent: Dry Tortugas National Park, Florida
Bounding_Coordinates:
West_Bounding_Coordinate: -82.9
East_Bounding_Coordinate: -82.7
North_Bounding_Coordinate: 24.7
South_Bounding_Coordinate: 24.5
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: sea turtle
Theme_Keyword: habitat use
Theme_Keyword: MPA
Theme_Keyword: marine protected area
Theme_Keyword: marine protected areas
Theme_Keyword: benthic habitat
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Biota
Theme_Keyword: Oceans
Theme_Keyword: Environment
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Dry Tortugas National Park
Place_Keyword: Florida Keys
Taxonomy:
Keywords/Taxon:
Taxonomic_Keyword_Thesaurus: None
Taxonomic_Keywords: sea turtles
Taxonomic_Keywords: reptiles
Taxonomic_Classification:
Taxon_Rank_Name: Kingdom
Taxon_Rank_Value: Animalia
Taxonomic_Classification:
Taxon_Rank_Name: Phylum
Taxon_Rank_Value: Chordata
Taxonomic_Classification:
Taxon_Rank_Name: Class
Taxon_Rank_Value: Reptilia
Taxonomic_Classification:
Taxon_Rank_Name: Order
Taxon_Rank_Value: Testudines
Taxonomic_Classification:
Taxon_Rank_Name: Family
Taxon_Rank_Value: Cheloniidae
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Chelonia
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Chelonia mydas
Applicable_Common_Name: Green sea turle
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Eretmochelys
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Eretmochelys imbricata
Applicable_Common_Name: Hawksbill sea turtle
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Caretta
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Caretta caretta
Applicable_Common_Name: Loggerhead sea turtle
Access_Constraints:
Maps of turtle movement patterns will be available on www.seaturtle.org. Data can also be found in the publications listed below.
Use_Constraints:
Cite primary authors and database when using or publishing these data
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Kristen Hart
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing and physical
Address: USGS Florida Integrated Science Center - Davie Field Office
Address: 3205 College Avenue
City: Davie
State_or_Province: FL
Postal_Code: 33314
Country: USA
Contact_Voice_Telephone: 954-577-6335
Contact_Facsimile_Telephone: 954-475-4125
Contact_Electronic_Mail_Address: kristen_hart@usgs.gov
Cross_Reference:
Citation_Information:
Originator: Hart, KM, Zawada DG, Fujisaki I, Lidz BH
Publication_Date: 2010
Title:
Inter-nesting habitat-use patterns of loggerhead sea turtles: Enhanced satellite tracking with benthic mapping
Geospatial_Data_Presentation_Form: publication
Series_Information:
Series_Name: Aquatic Biology
Issue_Identification: 11: 77-90
Cross_Reference:
Citation_Information:
Originator: Hart KM
Publication_Date: 2010
Title:
Use of protected areas by threatened and endangered marine turtles in the Dry Tortugas
Geospatial_Data_Presentation_Form: publication
Other_Citation_Details: Pages 12-13
Larger_Work_Citation:
Citation_Information:
Originator: Hallac, D and J. Hunt, editors
Publication_Date: Unknown
Title:
Implementing the Dry Tortugas National Park Research Natural Areas Science Plan: the 3-year Report
Geospatial_Data_Presentation_Form: publication
Other_Citation_Details:
South Florida Natural Resources Center, Everglades and Dry Tortugas National Parks, Homestead, FL, and the Florida Fish and Wildlife Conservation Commission, Tallahassee, FL. 37 pp.
Cross_Reference:
Citation_Information:
Originator: Hart, KM, Lamont MM, Fujisaki I, Tucker AD, Carthy RR
Publication_Date: 2012
Title:
Common coastal foraging areas for loggerheads in the Gulf of Mexico: opportunities for marine conservation
Geospatial_Data_Presentation_Form: publication
Series_Information:
Series_Name: Biological Conservation
Issue_Identification: 145: 185-194
Cross_Reference:
Citation_Information:
Originator:
Hart KM, Sartain AR, Fujisaki I, Pratt HL Jr, Morley D, Feeley MW
Publication_Date: 2012
Title:
Home range, habitat use and migrations of hawksbill turtlse tracked from Dry Tortugas National Park, Florida, USA
Geospatial_Data_Presentation_Form: publication
Series_Information:
Series_Name: Marine Ecology Progress Series
Issue_Identification: 457: 193-207
Other_Citation_Details: doi: http://dx.doi.org/10.3354/meps09744
Cross_Reference:
Citation_Information:
Originator: Hart, KM, Fujisaki I, Sartain AR
Publication_Date: 2012
Title:
Chapter 5: Use of Dry Tortugas National Park by threatened and endangered marine turtles
Geospatial_Data_Presentation_Form: publication
Other_Citation_Details: Pages 28-33
Larger_Work_Citation:
Citation_Information:
Originator: Ziegler, T.A. and Hunt, J., editors
Publication_Date: 2012
Title:
Implementing the Dry Tortugas National Park Research Natural Area Science Plan: the 5-year Report
Geospatial_Data_Presentation_Form: publication
Other_Citation_Details:
South Florida Natural Resources Center, Everglades and Dry Tortugas National Parks, Homestead, FL, and the Florida Fish and Wildlife Conservation Commission, Tallahassee, FL. 63 pp.
Cross_Reference:
Citation_Information:
Originator:
Hart, Kristen; Zawada, David G.; Fujisaki, Ikuko; Lidz, Barbara H.
Publication_Date: 2013
Title:
Habitat use of breeding green turtles Chelonia mydas tagged in Dry Tortugas National Park: Making use of local and regional MPAs
Geospatial_Data_Presentation_Form: publication
Series_Information:
Series_Name: Biological Conservation
Issue_Identification: 161: 142-154
Other_Citation_Details: DOI: http://dx.doi.org/10.1016/j.biocon.2013.03.019
Cross_Reference:
Citation_Information:
Originator:
Hart, Kristen M.; Lamont, Margaret M.; Sartain, Autumn R.; Fujisaki, Ikuko; Stephens, Brail S.
Publication_Date: 2013
Title:
Movements and habitat-use of loggerhead sea turtles in the northern Gulf of Mexico during the reproductive period
Geospatial_Data_Presentation_Form: publication
Series_Information:
Series_Name: PLoS One
Issue_Identification: 8(7): e66921
Other_Citation_Details: DOI: http://dx.doi.org/10.1371/journal.pone.0066921
Cross_Reference:
Citation_Information:
Originator: Hart, Kristen M. and Fujisaki, Ikuko.
Publication_Date: 2010
Title:
Satellite tracking reveals habitat use by juvenile green sea turtles Chelonia mydas in the Everglades, Florida, USA
Geospatial_Data_Presentation_Form: publication
Series_Information:
Series_Name: Endang Species Res.
Issue_Identification: 11: 221-232
Other_Citation_Details: doi: http://dx.doi.org/10.3354/esr00284

Data_Quality_Information:
Logical_Consistency_Report: Unknown
Completeness_Report: Unknown
Lineage:
Process_Step:
Process_Description:
Task 1: Benthic habitat characterization and habitat use of threatened and endangered sea turtles in Marine Protected Areas of the Greater Everglades

The purpose of this task is to capture and tag sea turtles in the Dry Tortugas National Park with standard PIT and flipper tags, as well as state-of-the-art acoustic and satellite tags. Capture sites will be on nesting beaches (i.e., Loggerhead Key, East Key) and in the water near Bush Key and Long Key as well as near Pulaski Light; capture sites will be both inside and outside the RNA. We will work-up each individual sea turtle to obtain diet and genetic samples, as well as morphometric information. Tracking efforts will involve downloading data from acoustic receivers several times a year as well as daily uploads of locations derived from satellite tags affixed to a proportion of each turtles for each species.
Process_Date: Unknown
Process_Step:
Process_Description:
Task 2: Benthic Characterization of Habitats Used by Sea Turtles in the Dry Tortugas

The purpose of this task is to characterize the habitats used by sea turtles in the Dry Tortugas. Information on habitats occupied will come from sightings and observations of sea turtle presence as well as data obtained from satellite tags and acoustic tags deployed on sea turtles. Bottom type will be identified and categorized using ATRIS as well as underwater digital photography and quadrat sampling.

Work to be undertaken during the project and a description of the methods and procedures: Work with USGS PI Zawada to examine benthic cover data collected using ATRIS in areas of interest (i.e., RNA boundary lines, turtle “hotspots”). Conduct additional in-water habitat characterization of soft bottom and hard bottom cover in the RNA, particularly in areas frequented by tagged sea turtles. We will use all data to determine whether the RNA serves as refuge for endangered species and how much critical habitat for green sea turtles lies within the boundaries of the RNA (and potentially other TER protected areas). Measure general effects of turtle grazing on seagrass beds and sponges using transects and ½ m2 quadrats and sampling both before and after receiver deployment. During each sampling trip, 25 quadrats will be assessed at each of five sites (the same site chosen for acoustic receiver deployment). Measures will include seagrass and sponge species identification and percent cover (Braun-Blanquet method), blade length, blade density, percent of quadrat grazed, type of grazing evidence, epifaunal load, and presence of turtles.
Process_Date: Unknown
Process_Step:
Process_Description:
Task 3: Genetic Diversity of Sea Turtles in the Dry Tortugas

The purpose of this task is to identify the genetic diversity of sea turtles found in the Dry Tortugas and compare it to other previously sampled sea turtles from other areas in south Florida and beyond. Each sea turtle will be sampled for genetics during the work-up procedure. Samples will be sent for analysis to Dr. Eugenia Naro-Maciel at the American Museum of Natural History (AMNH) in New York City, New York. By using previously developed molecular markers and analyzing mitochondrial DNA from each turtle to obtain genotypes, we can assess the likelihood that these turtles are all from the same or several different nesting beaches. This analysis will reveal genetic linkages to other sea turtle populations sampled elsewhere. We will analyze mitochondrial DNA control region sequences and nuclear microsatellite genotypes and compare data from DRTO turtles to sequences posted on GENBANK. The program ARLEQUIN version 3.01 (Excoffier et al., 2005) will be used to characterize genetic diversity, and to assess genetic structure through exact tests of population differentiation (Raymond and Rousset, 1995). Bayesian clustering analyses implemented by STRUCTURE version 2.1 will be used to estimate connectivity revealed by microsatellite markers without assuming prior population definitions (Pritchard et al., 2000). In addition, the Mixed Stock Analysis (Pella and Milner, 2001) method will be used to trace natal origins of these sea turtles.
Process_Date: Unknown
Process_Step:
Process_Description:
Task 4: Effects of Australian Pines on Sea Turtle Reproduction on Loggerhead Key.

The purpose of this task is to identify whether the stumps and roots of Australian pines on Loggerhead Key are interfering with sea turtle reproductive success. Exotic Australian pines were removed in the mid-1990s from Loggerhead Key, but the stumps and roots were left. This woody debris may deter nesting female sea turtles from using the beach, as well as trap hatchlings and shade the soil, possibly also causing temperature changes in the thermal profiles of the nest chamber.

Vegetation transects will be conducted along beach zones as in the 1990s to identify native and exotic vegetation. As well, daily nest monitoring for 2009–2010 will be conducted by a RSMAS student. A comparison of hatch rates for all nests monitored will be conducted, and a comparison of thermal regimes of data loggers deployed in nests and in shaded areas. False crawls of sea turtles will be compared by beach zone and proximity to stumps and exposed roots. We will compare all data collected to all available data from prior to the invasion and removal of exotic Australian pines.
Process_Date: Unknown

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Heather S. Henkel
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8028
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: hhenkel@usgs.gov
Distribution_Liability: The data have no explicit or implied guarantees.

Metadata_Reference_Information:
Metadata_Date: 20140929
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Heather S. Henkel
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8028
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: sofia-metadata@usgs.gov
Metadata_Standard_Name:
FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001.1-1999
Metadata_Access_Constraints:
The SOFIA staff were unable to contact the principal investigator(s) for this project, and therefore were unable to obtain a review of the information in the metadata record. Any questions about the information should be directed to the Primary Contact Person listed near the bottom of the metadata record. This metadata record may have been copied from the SOFIA website and may not be the most recent version. Please check https://sofia.usgs.gov/metadata to be sure you have the most recent version.

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Last updated: 23 December, 2016 @ 01:49 PM (KP)