English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/162621
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Foraging plasticity in obligate corallivorous Melon butterflyfish across three recently bleached reefs

AutorZambre, Amod; Arthur, Rohan
Palabras claveBleaching
Foraging plasticity
Coral reefs
Climate change
Butterflyfish
Fecha de publicación2018
EditorJohn Wiley & Sons
CitaciónEthology : doi:10.1111/eth.12733 (2018)
ResumenBecause obligate corallivorous butterflyfish feed exclusively on coral polyps, they are particularly sensitive to changes in coral cover and its spatial distribution. To understand how such differences in coral cover influence obligate corallivores, we examined the densities and foraging behavior of Melon butterflyfish Chaetodon trifasciatus across three reefs in the Lakshadweep archipelago. These reefs suffered differential bleaching mortality after the 2010 El Niño Southern Oscillation, resulting in wide variation in coral cover and community composition. Despite these differences, C. trifasciatus were able to persist at similar densities across reefs. However, our analysis of high-resolution video recordings of multiple focal fish revealed that time budgets, bite rates, and diet selectivity differed significantly. Fish in resource-poor reefs spent more time moving between coral patches and less time foraging than ones in relatively resource-rich reefs. We also found that fish in resource-poor reefs had higher bite rates and were less selective in their foraging. Our results provide novel insights into how obligate corallivores cope with even large differences in resource availability. At a time when we are rapidly losing corals to repeated climate-induced bleaching events, this flexibility may represent a critical mechanism that enables persistence of obligate corallivores in resource-poor reefs, even if it does not guarantee longer-term survival.
DescripciónEste artículo contiene 9 páginas, 6 figuras, 1 tabla.
Versión del editorhttps://dx.doi.org/10.1111/eth.12733
URIhttp://hdl.handle.net/10261/162621
ISSN0179-1613
E-ISSN1439-0310
Aparece en las colecciones: (CEAB) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Restringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.