Journal article
Integrating morphological and genetic data at different spatial scales in a cosmopolitan marine turtle species: challenges for management and conservation
Zoological Journal of the Linnean Society, Vol.191(2), pp.434-453
2020
Abstract
Patterns of genetic structure in highly mobile marine vertebrates may be accompanied by phenotypic variation. Most studies in marine turtles focused on population genetic structure have been performed at rookeries. We studied whether genetic and morphological variation of the endangered green turtle (Chelonia mydas) is consistent geographically, focusing on foraging grounds. An association between population genetic structure and body shape variation at broad (inter-lineage) and fine (foraging grounds) scales was predicted and analysed using mitochondrial DNA and geometric morphometrics. Although genetic and phenotypic differentiation patterns were congruent between lineages, no fine-scale association was found, suggesting adaptive divergence. Connectivity among Pacific foraging grounds found here suggests that temperatures of ocean surface currents may influence the genetic structure of C. mydas on a broad scale. Our results suggest that vicariance, dispersal, life-history traits and ecological conditions operating in foraging grounds have shaped the intraspecific morphology and genetic diversity of this species. Considering a range of geographic and temporal scales is useful when management strategies are required for cosmopolitan species. Integrating morphological and genetic tools at different spatial scales, conservation management is proposed based on protection of neutral and adaptive diversity. This approach opens new questions and challenges, especially regarding conservation genetics in cosmopolitan species.
Details
- Title
- Integrating morphological and genetic data at different spatial scales in a cosmopolitan marine turtle species: challenges for management and conservation
- Authors
- Rocío Álvarez-Varas (Corresponding Author) - University of ChileMaike Heidemeyer (Author) - Universidad de Costa RicaCynthia Riginos (Author) - University of QueenslandHugo A Benítez (Author) - Catholic University of the MauleEduardo Reséndiz (Author) - Universidad Autónoma de Baja California SurMónica Lara-Uc (Author) - Universidad Autónoma de Baja California SurDaniel A Godoy (Author) - Massey UniversityJuan Pablo Muñoz-Pérez (Author) - University of the Sunshine Coast, Queensland, School of Science and Engineering - LegacyDaniela E Alarcón-Ruales (Author) - University of North Carolina at Chapel HillGabriela M Vélez-Rubio (Author) - Karumbé Non-governmental Organization, Montevideo, UruguayAlejandro Fallabrino (Author) - Karumbé Non-governmental Organization, Montevideo, UruguaySusanna Piovano (Author) - University of the South PacificJoanna Alfaro-Shigueto (Author) - ProDelphinus, Lima, Peru, Facultad de Biología Marina, Universidad Científica del Sur, Lima, PeruClara Ortiz-Alvarez (Author) - ProDelphinus, Lima, PeruJeffrey C Mangel (Author) - ProDelphinus, Lima, PeruDamien Esquerré (Author) - Australian National UniversityPatricia Zárate (Author) - Instituto de Fomento PesqueroCarol Medrano (Author) - Qarapara Tortugas Marinas Chile Non-governmental Organization, Santiago, ChileFabiola León Miranda (Author) - Pontifical Catholic University of ChileFelipe Guerrero (Author) - University of ChileJuliana A Vianna (Author) - Pontifical Catholic University of ChileDavid Véliz (Author) - University of Chile
- Publication details
- Zoological Journal of the Linnean Society, Vol.191(2), pp.434-453
- Publisher
- Wiley-Blackwell Publishing Ltd.
- DOI
- 10.1093/zoolinnean/zlaa066
- ISSN
- 1096-3642
- Organisation Unit
- External; School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99482288002621
- Output Type
- Journal article
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