Inter-nesting movements and habitat-use of adult female Kemp's ridley turtles in the Gulf of Mexico

Species vulnerability is increased when individuals congregate in restricted areas for breeding; yet, breeding habitats are not well defined for many marine species. Identification and quantification of these breeding habitats are essential to effective conservation. Satellite telemetry and switchin...

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Veröffentlicht in:PloS one 2017-03, Vol.12 (3), p.e0174248-e0174248
Hauptverfasser: Shaver, Donna J, Hart, Kristen M, Fujisaki, Ikuko, Bucklin, David, Iverson, Autumn R, Rubio, Cynthia, Backof, Thomas F, Burchfield, Patrick M, de Jesus Gonzales Diaz Miron, Raul, Dutton, Peter H, Frey, Amy, Peña, Jaime, Gomez Gamez, Daniel, Martinez, Hector J, Ortiz, Jaime
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container_issue 3
container_start_page e0174248
container_title PloS one
container_volume 12
creator Shaver, Donna J
Hart, Kristen M
Fujisaki, Ikuko
Bucklin, David
Iverson, Autumn R
Rubio, Cynthia
Backof, Thomas F
Burchfield, Patrick M
de Jesus Gonzales Diaz Miron, Raul
Dutton, Peter H
Frey, Amy
Peña, Jaime
Gomez Gamez, Daniel
Martinez, Hector J
Ortiz, Jaime
description Species vulnerability is increased when individuals congregate in restricted areas for breeding; yet, breeding habitats are not well defined for many marine species. Identification and quantification of these breeding habitats are essential to effective conservation. Satellite telemetry and switching state-space modeling (SSM) were used to define inter-nesting habitat of endangered Kemp's ridley turtles (Lepidochelys kempii) in the Gulf of Mexico. Turtles were outfitted with satellite transmitters after nesting at Padre Island National Seashore, Texas, USA, from 1998 through 2013 (n = 60); Rancho Nuevo, Tamaulipas, Mexico, during 2010 and 2011 (n = 11); and Tecolutla, Veracruz, Mexico, during 2012 and 2013 (n = 11). These sites span the range of nearly all nesting by this species. Inter-nesting habitat lies in a narrow band of nearshore western Gulf of Mexico waters in the USA and Mexico, with mean water depth of 14 to 19 m within a mean distance to shore of 6 to 11 km as estimated by 50% kernel density estimate, α-Hull, and minimum convex polygon methodologies. Turtles tracked during the inter-nesting period moved, on average, 17.5 km/day and a mean total distance of 398 km. Mean home ranges occupied were 725 to 2948 km2. Our results indicate that these nearshore western Gulf waters represent critical inter-nesting habitat for this species, where threats such as shrimp trawling and oil and gas platforms also occur. Up to half of all adult female Kemp's ridleys occupy this habitat for weeks to months during each nesting season. Because inter-nesting habitat for this species is concentrated in nearshore waters of the western Gulf of Mexico in both Mexico and the USA, international collaboration is needed to protect this essential habitat and the turtles occurring within it.
doi_str_mv 10.1371/journal.pone.0174248
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Collection</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shaver, Donna J</au><au>Hart, Kristen M</au><au>Fujisaki, Ikuko</au><au>Bucklin, David</au><au>Iverson, Autumn R</au><au>Rubio, Cynthia</au><au>Backof, Thomas F</au><au>Burchfield, Patrick M</au><au>de Jesus Gonzales Diaz Miron, Raul</au><au>Dutton, Peter H</au><au>Frey, Amy</au><au>Peña, Jaime</au><au>Gomez Gamez, Daniel</au><au>Martinez, Hector J</au><au>Ortiz, Jaime</au><au>Lepczyk, Christopher A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Inter-nesting movements and habitat-use of adult female Kemp's ridley turtles in the Gulf of Mexico</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2017-03-20</date><risdate>2017</risdate><volume>12</volume><issue>3</issue><spage>e0174248</spage><epage>e0174248</epage><pages>e0174248-e0174248</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Species vulnerability is increased when individuals congregate in restricted areas for breeding; yet, breeding habitats are not well defined for many marine species. Identification and quantification of these breeding habitats are essential to effective conservation. Satellite telemetry and switching state-space modeling (SSM) were used to define inter-nesting habitat of endangered Kemp's ridley turtles (Lepidochelys kempii) in the Gulf of Mexico. Turtles were outfitted with satellite transmitters after nesting at Padre Island National Seashore, Texas, USA, from 1998 through 2013 (n = 60); Rancho Nuevo, Tamaulipas, Mexico, during 2010 and 2011 (n = 11); and Tecolutla, Veracruz, Mexico, during 2012 and 2013 (n = 11). These sites span the range of nearly all nesting by this species. Inter-nesting habitat lies in a narrow band of nearshore western Gulf of Mexico waters in the USA and Mexico, with mean water depth of 14 to 19 m within a mean distance to shore of 6 to 11 km as estimated by 50% kernel density estimate, α-Hull, and minimum convex polygon methodologies. Turtles tracked during the inter-nesting period moved, on average, 17.5 km/day and a mean total distance of 398 km. Mean home ranges occupied were 725 to 2948 km2. Our results indicate that these nearshore western Gulf waters represent critical inter-nesting habitat for this species, where threats such as shrimp trawling and oil and gas platforms also occur. Up to half of all adult female Kemp's ridleys occupy this habitat for weeks to months during each nesting season. Because inter-nesting habitat for this species is concentrated in nearshore waters of the western Gulf of Mexico in both Mexico and the USA, international collaboration is needed to protect this essential habitat and the turtles occurring within it.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>28319178</pmid><doi>10.1371/journal.pone.0174248</doi><tpages>e0174248</tpages><orcidid>https://orcid.org/0000-0003-1379-8974</orcidid><oa>free_for_read</oa></addata></record>
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identifier ISSN: 1932-6203
ispartof PloS one, 2017-03, Vol.12 (3), p.e0174248-e0174248
issn 1932-6203
1932-6203
language eng
recordid cdi_plos_journals_1879179408
source MEDLINE; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central; Free Full-Text Journals in Chemistry; Public Library of Science (PLoS)
subjects Adults
Animal behavior
Animal Migration
Animal reproduction
Animals
Biology and Life Sciences
Breeding
Caretta caretta
Chelonia mydas
Conservation
Decapoda
Depth perception
Dermochelys coriacea
Earth Sciences
Ecology and Environmental Sciences
Ecosystem
Eretmochelys imbricata
Female
Fisheries
Gulf of Mexico
Habitats
Health aspects
Home range
Homing Behavior
International cooperation
Kemp's ridley turtle
Lepidochelys
Lepidochelys kempii
Lepidochelys olivacea
Mexico
Motor Activity
Natator depressus
National parks
Natural gas
Nest building
Nesting
Nesting Behavior
Paternity
People and places
Population
Satellites
Shellfish
Species
State space models
Studies
Tamaulipa
Telemetry
Texas
Transmitters
Trawling
Turtles
Unmanned aerial vehicles
Water depth
title Inter-nesting movements and habitat-use of adult female Kemp's ridley turtles in the Gulf of Mexico
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