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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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. |
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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.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0174248</identifier><identifier>PMID: 28319178</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>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</subject><ispartof>PloS one, 2017-03, Vol.12 (3), p.e0174248-e0174248</ispartof><rights>COPYRIGHT 2017 Public Library of Science</rights><rights>This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. 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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.</description><subject>Adults</subject><subject>Animal behavior</subject><subject>Animal Migration</subject><subject>Animal reproduction</subject><subject>Animals</subject><subject>Biology and Life Sciences</subject><subject>Breeding</subject><subject>Caretta caretta</subject><subject>Chelonia mydas</subject><subject>Conservation</subject><subject>Decapoda</subject><subject>Depth perception</subject><subject>Dermochelys coriacea</subject><subject>Earth Sciences</subject><subject>Ecology and Environmental Sciences</subject><subject>Ecosystem</subject><subject>Eretmochelys imbricata</subject><subject>Female</subject><subject>Fisheries</subject><subject>Gulf of Mexico</subject><subject>Habitats</subject><subject>Health 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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> |
fulltext | fulltext |
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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