Format

Send to

Choose Destination
Science. 2007 Jan 12;315(5809):238-41.

A large-scale deforestation experiment: effects of patch area and isolation on Amazon birds.

Author information

1
Biological Dynamics of Forest Fragments Project, Instituto Nacional de Pesquisas da AmazĂ´nia, 69011 Manaus AM, Brazil. gferraz@inpa.gov.br

Abstract

As compared with extensive contiguous areas, small isolated habitat patches lack many species. Some species disappear after isolation; others are rarely found in any small patch, regardless of isolation. We used a 13-year data set of bird captures from a large landscape-manipulation experiment in a Brazilian Amazon forest to model the extinction-colonization dynamics of 55 species and tested basic predictions of island biogeography and metapopulation theory. From our models, we derived two metrics of species vulnerability to changes in isolation and patch area. We found a strong effect of area and a variable effect of isolation on the predicted patch occupancy by birds.

PMID:
17218527
DOI:
10.1126/science.1133097
[Indexed for MEDLINE]
Free full text

Supplemental Content

Full text links

Icon for HighWire
Loading ...
Support Center