DNA and dispersal models highlight constrained connectivity in a migratory marine megavertebrate
Population structure and spatial distribution are fundamentally important fields within ecology, evolution, and conservation biology. To investigate pan‐Atlantic connectivity of globally endangered green turtles Chelonia mydas from two National Parks in Florida, USA, we applied a multidisciplinary a...
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crwiley:10.1111/ecog.02056 2024-06-02T08:11:33+00:00 DNA and dispersal models highlight constrained connectivity in a migratory marine megavertebrate Naro‐Maciel, Eugenia Hart, Kristen M. Cruciata, Rossana Putman, Nathan F. 2016 http://dx.doi.org/10.1111/ecog.02056 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fecog.02056 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ecog.02056 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecography volume 40, issue 5, page 586-597 ISSN 0906-7590 1600-0587 journal-article 2016 crwiley https://doi.org/10.1111/ecog.02056 2024-05-03T11:55:21Z Population structure and spatial distribution are fundamentally important fields within ecology, evolution, and conservation biology. To investigate pan‐Atlantic connectivity of globally endangered green turtles Chelonia mydas from two National Parks in Florida, USA, we applied a multidisciplinary approach comparing genetic analysis and ocean circulation modeling. The Everglades (EP) is a juvenile feeding ground, whereas the Dry Tortugas (DT) is used for courtship, breeding, and feeding by adults and juveniles. We sequenced two mitochondrial segments from 138 turtles sampled there from 2006–2015, and simulated oceanic transport to estimate their origins. Genetic and ocean connectivity data revealed northwestern Atlantic rookeries as the major natal sources, while southern and eastern Atlantic contributions were negligible. However, specific rookery estimates differed between genetic and ocean transport models. The combined analyses suggest that post‐hatchling drift via ocean currents poorly explains the distribution of neritic juveniles and adults, but juvenile natal homing and population history likely play important roles. DT and EP were genetically similar to feeding grounds along the southern US coast, but highly differentiated from most other Atlantic groups. Despite expanded mitogenomic analysis and correspondingly increased ability to detect genetic variation, no significant differentiation between DT and EP, or among years, sexes or stages was observed. This first genetic analysis of a North Atlantic green turtle courtship area provides rare data supporting local movements and male philopatry. The study highlights the applications of multidisciplinary approaches for ecological research and conservation. Article in Journal/Newspaper North Atlantic Wiley Online Library Ecography 40 5 586 597 |
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English |
description |
Population structure and spatial distribution are fundamentally important fields within ecology, evolution, and conservation biology. To investigate pan‐Atlantic connectivity of globally endangered green turtles Chelonia mydas from two National Parks in Florida, USA, we applied a multidisciplinary approach comparing genetic analysis and ocean circulation modeling. The Everglades (EP) is a juvenile feeding ground, whereas the Dry Tortugas (DT) is used for courtship, breeding, and feeding by adults and juveniles. We sequenced two mitochondrial segments from 138 turtles sampled there from 2006–2015, and simulated oceanic transport to estimate their origins. Genetic and ocean connectivity data revealed northwestern Atlantic rookeries as the major natal sources, while southern and eastern Atlantic contributions were negligible. However, specific rookery estimates differed between genetic and ocean transport models. The combined analyses suggest that post‐hatchling drift via ocean currents poorly explains the distribution of neritic juveniles and adults, but juvenile natal homing and population history likely play important roles. DT and EP were genetically similar to feeding grounds along the southern US coast, but highly differentiated from most other Atlantic groups. Despite expanded mitogenomic analysis and correspondingly increased ability to detect genetic variation, no significant differentiation between DT and EP, or among years, sexes or stages was observed. This first genetic analysis of a North Atlantic green turtle courtship area provides rare data supporting local movements and male philopatry. The study highlights the applications of multidisciplinary approaches for ecological research and conservation. |
format |
Article in Journal/Newspaper |
author |
Naro‐Maciel, Eugenia Hart, Kristen M. Cruciata, Rossana Putman, Nathan F. |
spellingShingle |
Naro‐Maciel, Eugenia Hart, Kristen M. Cruciata, Rossana Putman, Nathan F. DNA and dispersal models highlight constrained connectivity in a migratory marine megavertebrate |
author_facet |
Naro‐Maciel, Eugenia Hart, Kristen M. Cruciata, Rossana Putman, Nathan F. |
author_sort |
Naro‐Maciel, Eugenia |
title |
DNA and dispersal models highlight constrained connectivity in a migratory marine megavertebrate |
title_short |
DNA and dispersal models highlight constrained connectivity in a migratory marine megavertebrate |
title_full |
DNA and dispersal models highlight constrained connectivity in a migratory marine megavertebrate |
title_fullStr |
DNA and dispersal models highlight constrained connectivity in a migratory marine megavertebrate |
title_full_unstemmed |
DNA and dispersal models highlight constrained connectivity in a migratory marine megavertebrate |
title_sort |
dna and dispersal models highlight constrained connectivity in a migratory marine megavertebrate |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/ecog.02056 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fecog.02056 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ecog.02056 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Ecography volume 40, issue 5, page 586-597 ISSN 0906-7590 1600-0587 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/ecog.02056 |
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Ecography |
container_volume |
40 |
container_issue |
5 |
container_start_page |
586 |
op_container_end_page |
597 |
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1800757733361713152 |