Population dynamics of Siderastrea stellata Verrill, 1868 from Rocas Atoll, RN: implications for predicted climate change impacts at the only South Atlantic atoll



Título del documento: Population dynamics of Siderastrea stellata Verrill, 1868 from Rocas Atoll, RN: implications for predicted climate change impacts at the only South Atlantic atoll
Revista: Anais da Academia Brasileira de Ciencias
Base de datos: PERIÓDICA
Número de sistema: 000408941
ISSN: 0001-3765
Autores: 1
2
1
1
Instituciones: 1Universidade Federal de Pernambuco, Departamento de Oceanografia, Recife, Pernambuco. Brasil
2Universidade Estadual da Bahia, Laboratorio de Geologia e Sedimentologia, Paulo Afonso, Bahia. Brasil
Año:
Periodo: Jun
Volumen: 89
Número: 2
Paginación: 873-884
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Coral reefs are one of the most vulnerable ecosystems to ocean warming and acidification, and it is important to determine the role of reef building species in this environment in order to obtain insight into their susceptibility to expected impacts of global changes. Aspects of the life history of a coral population, such as reproduction, growth and size-frequency can contribute to the production of models that are used to estimate impacts and potential recovery of the population, acting as a powerful tool for the conservation and management of those ecosystems. Here, we present the first evidence of Siderastrea stellata planulation, its early growth, population size-frequency distribution and growth rate of adult colonies in Rocas Atoll. Our results, together with the environmental protection policies and the absence of anthropogenic pressures, suggest that S. stellata population may have a good potential in the maintenance and recovery in the atoll. However, our results also indicate an impact on corals' recruitment, probably as a consequence of the positive temperature anomaly that occurred in 2010. Thus, despite the pristine status of Rocas Atoll, the preservation of its coral community seems to be threatened by current global changes, such as more frequent thermal stress events
Disciplinas: Biología,
Geociencias
Palabras clave: Ecología,
Ciencias de la atmósfera,
Oceanografía,
Cambio climático,
Calentamiento oceánico,
Bioindicadores,
Arrecifes de coral,
Dinámica de poblaciones,
Siderastrea stellata
Keyword: Biology,
Earth sciences,
Ecology,
Paleontology,
Atmospheric sciences,
Oceanography,
Ocenaography,
Climate change,
Ocean warming,
Bioindicators,
Coral reefs,
Population dynamics,
Siderastrea stellata
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