English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/27295
Compartir / Impacto:
Add this article to your Mendeley library MendeleyBASE
Citado 16 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)

The role of selective predation in harmful algal blooms

Autor Solé, Jordi; García-Ladona, Emilio; Estrada, Marta
Palabras clave Harmful algal blooms
feeding avoidance
Fecha de publicación ago-2006
Citación Journal of Marine Systems 62(1-2): 46-54 (2006)
ResumenA feature of marine plankton communities is the occurrence of rapid population explosions. When the blooming species are directly or indirectly noxious for humans, these proliferations are denoted as harmful algal blooms (HAB). The importance of biological interactions for the appearance of HABs, in particular when the proliferating microalgae produce toxins that affect other organisms in the food web, remains still poorly understood. Here we analyse the role of toxins produced by a microalgal species and affecting its predators, in determining the success of that species as a bloom former. A three-species predator–prey model is used to define a criterion that determines whether a toxic microalga will be able to initiate a bloom in competition against a non-toxic one with higher growth rate. Dominance of the toxic species depends on a critical parameter that defines the degree of feeding selectivity by grazers. The criterion is applied to a particular simplified model and to numerical simulations of a full marine ecosystem model. The results suggest that the release of toxic compounds affecting predators may be a plausible biological factor in allowing the development of HABs
Descripción 9 pages, 5 figures
Versión del editorhttp://dx.doi.org/10.1016/j.jmarsys.2006.04.002
URI http://hdl.handle.net/10261/27295
Aparece en las colecciones: (ICM) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
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.