Seascape genetics of the Atlantic spotted dolphin (Stenella frontalis) based on mitochondrial DNA
Creators: name: do Amaral, Karina Bohrer
name: Barragán-Barrera, Dalia C.
name: Mesa-Gutiérrez, Roosevelt A.
name: Farias-Curtidor, Nohelia
name: Caballero Gaitán, Susana J.
name: Méndez-Fernandez, Paula
name: Oliveira Santos, Marcos C.
name: Rinaldi, Caroline
name: Rinaldi, Renato
name: Siciliano, Salvatore
name: Martín, Vidal
name: Carillo, Manuel
name: de Meirelles, Ana Carolina O.
name: Franco-Trecu, Valentina
name: Fagundes, Nelson J. R.
name: Moreno, Ignacio Benites
name: Knowles, L. Lacey
name: Amaral, Ana Rita
Publisher: name: Zenodo
Year: 2021
Subjects: Isolation-by-distance
Isolation-by-Environment
isolation-by-resistance
matrilineal marker
Delphininae

description: The Atlantic spotted dolphin (Stenella frontalis) is endemic to tropical, subtropical, and warm temperate waters of the Atlantic Ocean. Throughout its distribution, both geographic distance and environmental variation may contribute to population structure of the species. In this study we follow a seascape genetics approach to investigate population differentiation of Atlantic spotted dolphins based on a large worldwide dataset and the relationship with marine environmental variables. The results revealed that the Atlantic spotted dolphin exhibits population genetic structure across its distribution based on mitochondrial DNA control region (mtDNA-CR) data. Analyses based on the contemporary landscape suggested, at both the individual and population-level, that the population genetic structure is consistent with the isolation-by-distance model. However, because geography and environmental matrices were correlated, and because in some, but not all analyses, we found a significant effect for the environment, we cannot rule out the addition contribution of environmental factors in structuring genetic variation. Future analyses based on nuclear data are needed to evaluate whether local processes, such as social structure and some level of philopatry within populations, may be contributing to the associations among genetic structure, geographic, and environmental distance.
description: Funding provided by: Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100003593<br>Award Number: 557182/2009-3Funding provided by: Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100003593<br>Award Number: 404558/2012-7Funding provided by: Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100003593<br>Award Number: 422507/2016-4Funding provided by: Pró-Reitoria de Pesquisa, Universidade Federal do Rio Grande do Sul<br>Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100007184<br>Award Number: Funding provided by: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100002322<br>Award Number: 1395438Funding provided by: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100002322<br>Award Number: 88881.132895/2016-01Funding provided by: Society for Marine Mammalogy<br>Crossref Funder Registry ID: http://dx.doi.org/10.13039/100007143<br>Award Number: Funding provided by: Rufford Foundation<br>Crossref Funder Registry ID: http://dx.doi.org/10.13039/100007463<br>Award Number: Funding provided by: Universidad de los Andes<br>Crossref Funder Registry ID: http://dx.doi.org/10.13039/100007463<br>Award Number: Funding provided by: Fundação de Amparo à Pesquisa do Estado de São Paulo<br>Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100001807<br>Award Number: 010/51323-6Funding provided by: Fundação de Amparo à Pesquisa do Estado de São Paulo<br>Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100001807<br>Award Number: 2011/51543-9