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Rapid Decay Of Tree-Community Composition In Amazonian Forest Fragments, William F. Laurance, Henrique E.M. Nascimento, Susan G. Laurance, Ana Andrade, José E.L.S. Ribeiro, Juan Pablo Giraldo, Thomas E. Lovejoy, Richard Condit, Jerome Chave, Kyle E. Harms, Sammya D'Angelo
Rapid Decay Of Tree-Community Composition In Amazonian Forest Fragments, William F. Laurance, Henrique E.M. Nascimento, Susan G. Laurance, Ana Andrade, José E.L.S. Ribeiro, Juan Pablo Giraldo, Thomas E. Lovejoy, Richard Condit, Jerome Chave, Kyle E. Harms, Sammya D'Angelo
Faculty Publications
Forest fragmentation is considered a greater threat to vertebrates than to tree communities because individual trees are typically long-lived and require only small areas for survival. Here we show that forest fragmentation provokes surprisingly rapid and profound alterations in Amazonian tree-community composition. Results were derived from a 22-year study of exceptionally diverse tree communities in 40 1-ha plots in fragmented and intact forests, which were sampled repeatedly before and after fragment isolation. Within these plots, trajectories of change in abundance were assessed for 267 genera and 1,162 tree species. Abrupt shifts in floristic composition were driven by sharply accelerated tree …
Testing Metabolic Ecology Theory For Allometric Scaling Of Tree Size, Growth And Mortality In Tropical Forests, Helene C. Muller-Landau, Richard S. Condit, Jerome Chave, Sean C. Thomas, Stephanie A. Bohlman, Sarayudh Bunyavejchewin, Stuart Davies, Robin Foster, Savitri Gunatilleke, Nimal Gunatilleke, Kyle E. Harms, Terese Hart, Stephen P. Hubbell, Akira Itoh, Abd Rahman Kassim, James V. Lafrankie, Hua Seng Lee, Elizabeth Losos, Jean Remy Makana, Tatsuhiro Ohkubo, Raman Sukumar, I. Fang Sun, M. N. Nur Supardi, Sylvester Tan, Jill Thompson, Renato Valencia, Gorky Villa Muñoz, Christopher Wills, Takuo Yamakura, George Chuyong, Handanakere Shivaramaiah Dattaraja, Shameema Esufali, Pamela Hall
Testing Metabolic Ecology Theory For Allometric Scaling Of Tree Size, Growth And Mortality In Tropical Forests, Helene C. Muller-Landau, Richard S. Condit, Jerome Chave, Sean C. Thomas, Stephanie A. Bohlman, Sarayudh Bunyavejchewin, Stuart Davies, Robin Foster, Savitri Gunatilleke, Nimal Gunatilleke, Kyle E. Harms, Terese Hart, Stephen P. Hubbell, Akira Itoh, Abd Rahman Kassim, James V. Lafrankie, Hua Seng Lee, Elizabeth Losos, Jean Remy Makana, Tatsuhiro Ohkubo, Raman Sukumar, I. Fang Sun, M. N. Nur Supardi, Sylvester Tan, Jill Thompson, Renato Valencia, Gorky Villa Muñoz, Christopher Wills, Takuo Yamakura, George Chuyong, Handanakere Shivaramaiah Dattaraja, Shameema Esufali, Pamela Hall
Faculty Publications
The theory of metabolic ecology predicts specific relationships among tree stem diameter, biomass, height, growth and mortality. As demographic rates are important to estimates of carbon fluxes in forests, this theory might offer important insights into the global carbon budget, and deserves careful assessment. We assembled data from 10 old-growth tropical forests encompassing censuses of 367 ha and > 1.7 million trees to test the theory's predictions. We also developed a set of alternative predictions that retained some assumptions of metabolic ecology while also considering how availability of a key limiting resource, light, changes with tree size. Our results show that …