Productivity is a poor predictor of plant species richness.
Science
; 333(6050): 1750-3, 2011 Sep 23.
Article
en En
| MEDLINE
| ID: mdl-21940895
ABSTRACT
For more than 30 years, the relationship between net primary productivity and species richness has generated intense debate in ecology about the processes regulating local diversity. The original view, which is still widely accepted, holds that the relationship is hump-shaped, with richness first rising and then declining with increasing productivity. Although recent meta-analyses questioned the generality of hump-shaped patterns, these syntheses have been criticized for failing to account for methodological differences among studies. We addressed such concerns by conducting standardized sampling in 48 herbaceous-dominated plant communities on five continents. We found no clear relationship between productivity and fine-scale (meters(-2)) richness within sites, within regions, or across the globe. Ecologists should focus on fresh, mechanistic approaches to understanding the multivariate links between productivity and richness.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Plantas
/
Ecosistema
/
Biomasa
/
Biodiversidad
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
/
Risk_factors_studies
País/Región como asunto:
Africa
/
America do norte
/
Asia
/
Europa
/
Oceania
Idioma:
En
Revista:
Science
Año:
2011
Tipo del documento:
Article
País de afiliación:
Estados Unidos