Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Intransitive competition is widespread in plant communities and maintains their species richness
Año:2015
Áreas de investigación
  • Ecología,
  • Ingenierías
Datos
Descripción
Intransitive competition networks, those in which there is no single best competitor, may ensure species coexistence. However, their frequency and importance in maintaining diversity in real-world ecosystems remain unclear. We used two large data sets from drylands and agricultural grasslands to assess: (1) the generality of intransitive competition, (2) intransitivity?richness relationships and (3) effects of two major drivers of biodiversity loss (aridity and land-use intensification) on intransitivity and species richness. Intransitive competition occurred in > 65% of sites and was associated with higher species richness. Intransitivity increased with aridity, partly buffering its negative effects on diversity, but was decreased by intensive land use, enhancing its negative effects on diversity. These contrasting responses likely arise because intransitivity is promoted by temporal heterogeneity, which is enhanced by aridity but may decline with land-use intensity. We show that intransitivity is widespread in nature and increases diversity, but it can be lost with environmental homogenisation.
Internacional
Si
JCR del ISI
Si
Título de la revista
Ecology Letters
ISSN
1461-023X
Factor de impacto JCR
13,042
Información de impacto
Volumen
18
DOI
10.1111/ele.12456
Número de revista
8
Desde la página
790
Hasta la página
798
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Miguel Garcia Gomez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Ingeniería y Morfología del Terreno
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