Cargando…
Population Structure of the Endangered Franciscana Dolphin (Pontoporia blainvillei): Reassessing Management Units
Franciscanas are the most endangered dolphins in the Southwestern Atlantic. Due to their coastal and estuarine habits, franciscanas suffer from extensive fisheries bycatch, as well as from habitat loss and degradation. Four Franciscana Management Areas (FMA), proposed based on biology, demography, m...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2014
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3908959/ https://www.ncbi.nlm.nih.gov/pubmed/24497928 http://dx.doi.org/10.1371/journal.pone.0085633 |
_version_ | 1782301770163159040 |
---|---|
author | Cunha, Haydée A. Medeiros, Bruna V. Barbosa, Lupércio A. Cremer, Marta J. Marigo, Juliana Lailson-Brito, José Azevedo, Alexandre F. Solé-Cava, Antonio M. |
author_facet | Cunha, Haydée A. Medeiros, Bruna V. Barbosa, Lupércio A. Cremer, Marta J. Marigo, Juliana Lailson-Brito, José Azevedo, Alexandre F. Solé-Cava, Antonio M. |
author_sort | Cunha, Haydée A. |
collection | PubMed |
description | Franciscanas are the most endangered dolphins in the Southwestern Atlantic. Due to their coastal and estuarine habits, franciscanas suffer from extensive fisheries bycatch, as well as from habitat loss and degradation. Four Franciscana Management Areas (FMA), proposed based on biology, demography, morphology and genetic data, were incorporated into management planning and in the delineation of research efforts. We re-evaluated that proposal through the analysis of control region sequences from franciscanas throughout their distribution range (N = 162), including novel sequences from the northern limit of the species and two other previously unsampled localities in Brazil. A deep evolutionary break was observed between franciscanas from the northern and southern portions of the species distribution, indicating that they must be managed as two Evolutionarily Significant Units (ESU). Furthermore, additional FMAs should be recognised to accommodate the genetic differentiation found in each ESU. These results have immediate consequences for the conservation and management of this endangered species. |
format | Online Article Text |
id | pubmed-3908959 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-39089592014-02-04 Population Structure of the Endangered Franciscana Dolphin (Pontoporia blainvillei): Reassessing Management Units Cunha, Haydée A. Medeiros, Bruna V. Barbosa, Lupércio A. Cremer, Marta J. Marigo, Juliana Lailson-Brito, José Azevedo, Alexandre F. Solé-Cava, Antonio M. PLoS One Research Article Franciscanas are the most endangered dolphins in the Southwestern Atlantic. Due to their coastal and estuarine habits, franciscanas suffer from extensive fisheries bycatch, as well as from habitat loss and degradation. Four Franciscana Management Areas (FMA), proposed based on biology, demography, morphology and genetic data, were incorporated into management planning and in the delineation of research efforts. We re-evaluated that proposal through the analysis of control region sequences from franciscanas throughout their distribution range (N = 162), including novel sequences from the northern limit of the species and two other previously unsampled localities in Brazil. A deep evolutionary break was observed between franciscanas from the northern and southern portions of the species distribution, indicating that they must be managed as two Evolutionarily Significant Units (ESU). Furthermore, additional FMAs should be recognised to accommodate the genetic differentiation found in each ESU. These results have immediate consequences for the conservation and management of this endangered species. Public Library of Science 2014-01-31 /pmc/articles/PMC3908959/ /pubmed/24497928 http://dx.doi.org/10.1371/journal.pone.0085633 Text en © 2014 Cunha et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Cunha, Haydée A. Medeiros, Bruna V. Barbosa, Lupércio A. Cremer, Marta J. Marigo, Juliana Lailson-Brito, José Azevedo, Alexandre F. Solé-Cava, Antonio M. Population Structure of the Endangered Franciscana Dolphin (Pontoporia blainvillei): Reassessing Management Units |
title | Population Structure of the Endangered Franciscana Dolphin (Pontoporia blainvillei): Reassessing Management Units |
title_full | Population Structure of the Endangered Franciscana Dolphin (Pontoporia blainvillei): Reassessing Management Units |
title_fullStr | Population Structure of the Endangered Franciscana Dolphin (Pontoporia blainvillei): Reassessing Management Units |
title_full_unstemmed | Population Structure of the Endangered Franciscana Dolphin (Pontoporia blainvillei): Reassessing Management Units |
title_short | Population Structure of the Endangered Franciscana Dolphin (Pontoporia blainvillei): Reassessing Management Units |
title_sort | population structure of the endangered franciscana dolphin (pontoporia blainvillei): reassessing management units |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3908959/ https://www.ncbi.nlm.nih.gov/pubmed/24497928 http://dx.doi.org/10.1371/journal.pone.0085633 |
work_keys_str_mv | AT cunhahaydeea populationstructureoftheendangeredfranciscanadolphinpontoporiablainvilleireassessingmanagementunits AT medeirosbrunav populationstructureoftheendangeredfranciscanadolphinpontoporiablainvilleireassessingmanagementunits AT barbosalupercioa populationstructureoftheendangeredfranciscanadolphinpontoporiablainvilleireassessingmanagementunits AT cremermartaj populationstructureoftheendangeredfranciscanadolphinpontoporiablainvilleireassessingmanagementunits AT marigojuliana populationstructureoftheendangeredfranciscanadolphinpontoporiablainvilleireassessingmanagementunits AT lailsonbritojose populationstructureoftheendangeredfranciscanadolphinpontoporiablainvilleireassessingmanagementunits AT azevedoalexandref populationstructureoftheendangeredfranciscanadolphinpontoporiablainvilleireassessingmanagementunits AT solecavaantoniom populationstructureoftheendangeredfranciscanadolphinpontoporiablainvilleireassessingmanagementunits |