The function-dominance correlation drives the direction and strength of biodiversity-ecosystem functioning relationships.
Ecol Lett
; 24(9): 1762-1775, 2021 Sep.
Article
en En
| MEDLINE
| ID: mdl-34157796
ABSTRACT
Community composition is a primary determinant of how biodiversity change influences ecosystem functioning and, therefore, the relationship between biodiversity and ecosystem functioning (BEF). We examine the consequences of community composition across six structurally realistic plant community models. We find that a positive correlation between species' functioning in monoculture versus their dominance in mixture with regard to a specific function (the "function-dominance correlation") generates a positive relationship between realised diversity and ecosystem functioning across species richness treatments. However, because realised diversity declines when few species dominate, a positive function-dominance correlation generates a negative relationship between realised diversity and ecosystem functioning within species richness treatments. Removing seed inflow strengthens the link between the function-dominance correlation and BEF relationships across species richness treatments but weakens it within them. These results suggest that changes in species' identities in a local species pool may more strongly affect ecosystem functioning than changes in species richness.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Ecosistema
/
Biodiversidad
Idioma:
En
Revista:
Ecol Lett
Año:
2021
Tipo del documento:
Article
País de afiliación:
Alemania