Vista normal Vista MARC

Catastrophe and the life span of coral reefs

Aronson, Richard B | Precht, William F [autor/a] | Macintyre, Ian G [autor/a] | Toth, Lauren T [autor/a].
Tipo de material: Artículo impreso(a) y electrónico Artículo impreso(a) y electrónico Tema(s): Arrecifes de coral | Corales | Daños y perjuicios | TerremotosDescriptor(es) geográficos: Belice Nota de acceso: Acceso en línea sin restricciones En: Ecology. volumen 93, número 2 (February 2012), páginas 303-313. --ISSN: 0012-9658Número de sistema: 51349Resumen:
Inglés

A strong earthquake in the western Caribbean in 2009 had a catastrophic impact on uncemented, unconsolidated coral reefs in the central sector of the shelf lagoon of the Belizean barrier reef. In a set of 21 reef sites that had been observed prior to the earthquake, the benthic assemblages of 10 were eradicated, and one was partially damaged, by avalanching of their slopes. Ecological dynamics that had played out over the previous 23 years, including the mass mortalities of two sequentially dominant coral species and a large increase in the cover of an encrusting sponge, were instantaneously rendered moot in the areas of catastrophic reef-slope failure. Because these prior dynamics also determined the benthic composition and resilience of adjacent sections of reef that remained intact, the history of disturbance prior to the earthquake will strongly influence decadal-scale recovery in the failed areas. Geological analysis of the reef framework yielded a minimum return time of 2000-4000 years for this type of high-amplitude event. Anthropogenic degradation of ecosystems must be viewed against the backdrop of long-period, natural catastrophes, such as the impact of strong earthquakes on uncemented, lagoonal reefs.

Recurso en línea: http://si-pddr.si.edu/jspui/bitstream/10088/18465/1/paleo_Aronson_et_al_Ecology_2012.pdf
Etiquetas de esta biblioteca: No hay etiquetas de esta biblioteca para este título. Ingresar para agregar etiquetas.
Star ratings
    Valoración media: 0.0 (0 votos)
Existencias
Tipo de ítem Biblioteca actual Colección Signatura Info Vol Estado Fecha de vencimiento Código de barras
Artículos Biblioteca Electrónica
Recursos en línea (RE) 		FROSUR Recurso digital ECO400513496797
Artículos Biblioteca San Cristóbal

Texto en la configuración de la biblioteca San Cristóbal

Artículos Belice Hemeroteca (AR B H) 		FROSUR 001 Disponible 490611C51384-10

Acceso en línea sin restricciones

A strong earthquake in the western Caribbean in 2009 had a catastrophic impact on uncemented, unconsolidated coral reefs in the central sector of the shelf lagoon of the Belizean barrier reef. In a set of 21 reef sites that had been observed prior to the earthquake, the benthic assemblages of 10 were eradicated, and one was partially damaged, by avalanching of their slopes. Ecological dynamics that had played out over the previous 23 years, including the mass mortalities of two sequentially dominant coral species and a large increase in the cover of an encrusting sponge, were instantaneously rendered moot in the areas of catastrophic reef-slope failure. Because these prior dynamics also determined the benthic composition and resilience of adjacent sections of reef that remained intact, the history of disturbance prior to the earthquake will strongly influence decadal-scale recovery in the failed areas. Geological analysis of the reef framework yielded a minimum return time of 2000-4000 years for this type of high-amplitude event. Anthropogenic degradation of ecosystems must be viewed against the backdrop of long-period, natural catastrophes, such as the impact of strong earthquakes on uncemented, lagoonal reefs. eng

Disponible en línea

Adobe Acrobat profesional 6.0 o superior e Internet

Con tecnología Koha