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Rates of species loss from Amazonian forest fragments.

Publication ,  Journal Article
Ferraz, G; Russell, GJ; Stouffer, PC; Bierregaard, RO; Pimm, SL; Lovejoy, TE
Published in: Proceedings of the National Academy of Sciences of the United States of America
November 2003

In the face of worldwide habitat fragmentation, managers need to devise a time frame for action. We ask how fast do understory bird species disappear from experimentally isolated plots in the Biological Dynamics of Forest Fragments Project, central Amazon, Brazil. Our data consist of mist-net records obtained over a period of 13 years in 11 sites of 1, 10, and 100 hectares. The numbers of captures per species per unit time, analyzed under different simplifying assumptions, reveal a set of species-loss curves. From those declining numbers, we derive a scaling rule for the time it takes to lose half the species in a fragment as a function of its area. A 10-fold decrease in the rate of species loss requires a 1,000-fold increase in area. Fragments of 100 hectares lose one half of their species in <15 years, too short a time for implementing conservation measures.

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Published In

Proceedings of the National Academy of Sciences of the United States of America

DOI

EISSN

1091-6490

ISSN

0027-8424

Publication Date

November 2003

Volume

100

Issue

24

Start / End Page

14069 / 14073

Related Subject Headings

  • Tropical Climate
  • Trees
  • Species Specificity
  • Models, Biological
  • Environment
  • Ecosystem
  • Brazil
  • Birds
  • Biodiversity
  • Bayes Theorem
 

Citation

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Ferraz, G., Russell, G. J., Stouffer, P. C., Bierregaard, R. O., Pimm, S. L., & Lovejoy, T. E. (2003). Rates of species loss from Amazonian forest fragments. Proceedings of the National Academy of Sciences of the United States of America, 100(24), 14069–14073. https://doi.org/10.1073/pnas.2336195100
Ferraz, Goncalo, Gareth J. Russell, Philip C. Stouffer, Richard O. Bierregaard, Stuart L. Pimm, and Thomas E. Lovejoy. “Rates of species loss from Amazonian forest fragments.Proceedings of the National Academy of Sciences of the United States of America 100, no. 24 (November 2003): 14069–73. https://doi.org/10.1073/pnas.2336195100.
Ferraz G, Russell GJ, Stouffer PC, Bierregaard RO, Pimm SL, Lovejoy TE. Rates of species loss from Amazonian forest fragments. Proceedings of the National Academy of Sciences of the United States of America. 2003 Nov;100(24):14069–73.
Ferraz, Goncalo, et al. “Rates of species loss from Amazonian forest fragments.Proceedings of the National Academy of Sciences of the United States of America, vol. 100, no. 24, Nov. 2003, pp. 14069–73. Epmc, doi:10.1073/pnas.2336195100.
Ferraz G, Russell GJ, Stouffer PC, Bierregaard RO, Pimm SL, Lovejoy TE. Rates of species loss from Amazonian forest fragments. Proceedings of the National Academy of Sciences of the United States of America. 2003 Nov;100(24):14069–14073.
Journal cover image

Published In

Proceedings of the National Academy of Sciences of the United States of America

DOI

EISSN

1091-6490

ISSN

0027-8424

Publication Date

November 2003

Volume

100

Issue

24

Start / End Page

14069 / 14073

Related Subject Headings

  • Tropical Climate
  • Trees
  • Species Specificity
  • Models, Biological
  • Environment
  • Ecosystem
  • Brazil
  • Birds
  • Biodiversity
  • Bayes Theorem