English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/49468
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Species richness and cell-size distribution: size structure of phytoplankton communities

AutorCermeño, Pedro ; Figueiras, F. G.
Palabras claveMacroecology
Community structure
Species richness
Population abundance
Cell size
Self-organization
Phytoplankton
Fecha de publicación2008
EditorInter Research
CitaciónMarine Ecology Progress Series 357: 79-86 (2008)
ResumenIf the size dependence of species richness varies across ecosystems, it should be reflected in the size distribution of total abundance. Using a database of phytoplankton abundance, species composition and cell size from coastal, shelf and open-ocean environments, we show that the biogeographical patterns of phytoplankton size distribution in the ocean are a result of systematic changes in the relationship between species richness and cell size. Our results indicate that, regardless of the environmental conditions, population abundance decreases consistently to the –3/4 power of cell size. By contrast, marine phytoplankton diversity peaks at small sizes in oligotrophic waters but is either a log-normal function or independent of cell size in eutrophic systems. It is argued that, operating on evolutionary time scales, size-dependent biophysical constraints for resource acquisition are reflected in the size distribution of species richness and consequently in the size structure of phytoplankton communities in the ocean. These findings indicate that the way in which biological diversity changes with body size is crucial to a better understanding of the structure and functioning of microbial plankton communities and how energy flows through pelagic ecosystems
Descripción7 páginas, 3 figuras, 2 tablas
Versión del editorhttp://dx.doi.org/10.3354/meps07293
URIhttp://hdl.handle.net/10261/49468
DOI10.3354/meps07293
ISSN0171-8630
E-ISSN1616-1599
Aparece en las colecciones: (IIM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Species richness size.pdf236,82 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


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