Extinction rates under nonrandom patterns of habitat loss.
Proc Natl Acad Sci U S A
; 99(17): 11229-34, 2002 Aug 20.
Article
en En
| MEDLINE
| ID: mdl-12177416
ABSTRACT
Most models that examine the effects of habitat conversion on species extinctions assume that habitat conversion occurs at random. This assumption allows predictions about extinction rates based on the species-area relationship. We show that the spatially aggregated nature of habitat conversion introduces a significant bias that may lead species-loss rates to exceed those predicted by species-area curves. Correlations between human activity and major compositional gradients, or species richness, also alter predicted species extinction rates. We illustrate the consequences of nonrandom patterns of habitat conversion by using a data set that combines the distribution of native vascular plants with human activity patterns in California.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Fenómenos Fisiológicos de las Plantas
/
Ambiente
/
Desarrollo de la Planta
Tipo de estudio:
Prognostic_studies
País/Región como asunto:
America do norte
Idioma:
En
Revista:
Proc Natl Acad Sci U S A
Año:
2002
Tipo del documento:
Article
País de afiliación:
Estados Unidos