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9 results on '"Umetsu, Ricardo K."'

1. Competition influences tree growth, but not mortality, across environmental gradients in Amazonia and tropical Africa

Author

Rozendaal, Danaë M. A., Phillips, Oliver L., Lewis, Simon L., Affum-Baffoe, Kofi, Alvarez-Davila, Esteban, Andrade, Ana, Aragão, Luiz E. O. C., Araujo-Murakami, Alejandro, Baker, Timothy R., Bánki, Olaf, Brienen, Roel J. W., Camargo, José Luis C., Comiskey, James A., Kamdem, Marie Noël Djuikouo, Fauset, Sophie, Feldpausch, Ted R., Killeen, Timothy J., Laurance, William F., Laurance, Susan G. W., Lovejoy, Thomas, Malhi, Yadvinder, Marimon, Beatriz S., Junior, Ben-Hur Marimon, Marshall, Andrew R., Neill, David A., Vargas, Percy Núñez, Pitman, Nigel C. A., Poorter, Lourens, Reitsma, Jan, Silveira, Marcos, Sonké, Bonaventure, Sunderland, Terry, Taedoumg, Hermann, Steege, Hanster, Terborgh, John W., Umetsu, Ricardo K., Van Derheijden, Geertje M.F., Vilanova, Emilio, Vos, Vincent, White, Lee J. T., Willcock, Simon, Zemagho, Lise, and Vanderwel, Mark C.

Published
2020

3. Evolutionary diversity is associated with wood productivity in Amazonian forests

Author

Coelho de Souza, Fernanda, Dexter, Kyle G., Phillips, Oliver L., Pennington, R. Toby, Neves, Danilo, Sullivan, Martin J. P., Alvarez-Davila, Esteban, Alves, Átila, Amaral, Ieda, Andrade, Ana, Aragao, Luis E. O. C., Araujo-Murakami, Alejandro, Arets, Eric J. M. M., Arroyo, Luzmilla, Aymard C., Gerardo A., Bánki, Olaf, Baraloto, Christopher, Barroso, Jorcely G., Boot, Rene G. A., Brienen, Roel J. W., Brown, Foster, Camargo, José Luís C., Castro, Wendeson, Chave, Jerome, Cogollo, Alvaro, Comiskey, James A., Cornejo-Valverde, Fernando, da Costa, Antonio Lola, de Camargo, Plínio B., Di Fiore, Anthony, Feldpausch, Ted R., Galbraith, David R., Gloor, Emanuel, Goodman, Rosa C., Gilpin, Martin, Herrera, Rafael, Higuchi, Niro, Honorio Coronado, Eurídice N., Jimenez-Rojas, Eliana, Killeen, Timothy J., Laurance, Susan, Laurance, William F., Lopez-Gonzalez, Gabriela, Lovejoy, Thomas E., Malhi, Yadvinder, Marimon, Beatriz S., Marimon-Junior, Ben Hur, Mendoza, Casimiro, Monteagudo-Mendoza, Abel, Neill, David A., Vargas, Percy Núñez, Peñuela Mora, Maria C., Pickavance, Georgia C., Pipoly, III, John J., Pitman, Nigel C. A., Poorter, Lourens, Prieto, Adriana, Ramirez, Freddy, Roopsind, Anand, Rudas, Agustin, Salomão, Rafael P., Silva, Natalino, Silveira, Marcos, Singh, James, Stropp, Juliana, ter Steege, Hans, Terborgh, John, Thomas-Caesar, Raquel, Umetsu, Ricardo K., Vasquez, Rodolfo V., Célia-Vieira, Ima, Vieira, Simone A., Vos, Vincent A., Zagt, Roderick J., and Baker, Timothy R.

Published
2019
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4. Competition influences tree growth, but not mortality, across environmental gradients in Amazonia and tropical Africa

Author

Rozendaal, Danaë M.A., Phillips, Oliver L., Lewis, Simon L., Affum-Baffoe, Kofi, Alvarez-Davila, Esteban, Andrade, Ana, Aragão, Luiz E.O.C., Araujo-Murakami, Alejandro, Baker, Timothy R., Bánki, Olaf, Brienen, Roel J.W., Camargo, José Luis C., Comiskey, James A., Djuikouo Kamdem, Marie Noël, Fauset, Sophie, Feldpausch, Ted R., Killeen, Timothy J., Laurance, William F., Laurance, Susan G.W., Lovejoy, Thomas, Malhi, Yadvinder, Marimon, Beatriz S., Marimon Junior, Ben Hur, Marshall, Andrew R., Neill, David A., Núñez Vargas, Percy, Pitman, Nigel C.A., Poorter, Lourens, Reitsma, Jan, Silveira, Marcos, Sonké, Bonaventure, Sunderland, Terry, Taedoumg, Hermann, ter Steege, Hans, Terborgh, John W., Umetsu, Ricardo K., van der Heijden, Geertje M.F., Vilanova, Emilio, Vos, Vincent, White, Lee J.T., Willcock, Simon, Zemagho, Lise, Vanderwel, Mark C., Rozendaal, Danaë M.A., Phillips, Oliver L., Lewis, Simon L., Affum-Baffoe, Kofi, Alvarez-Davila, Esteban, Andrade, Ana, Aragão, Luiz E.O.C., Araujo-Murakami, Alejandro, Baker, Timothy R., Bánki, Olaf, Brienen, Roel J.W., Camargo, José Luis C., Comiskey, James A., Djuikouo Kamdem, Marie Noël, Fauset, Sophie, Feldpausch, Ted R., Killeen, Timothy J., Laurance, William F., Laurance, Susan G.W., Lovejoy, Thomas, Malhi, Yadvinder, Marimon, Beatriz S., Marimon Junior, Ben Hur, Marshall, Andrew R., Neill, David A., Núñez Vargas, Percy, Pitman, Nigel C.A., Poorter, Lourens, Reitsma, Jan, Silveira, Marcos, Sonké, Bonaventure, Sunderland, Terry, Taedoumg, Hermann, ter Steege, Hans, Terborgh, John W., Umetsu, Ricardo K., van der Heijden, Geertje M.F., Vilanova, Emilio, Vos, Vincent, White, Lee J.T., Willcock, Simon, Zemagho, Lise, and Vanderwel, Mark C.

Abstract

Competition among trees is an important driver of community structure and dynamics in tropical forests. Neighboring trees may impact an individual tree’s growth rate and probability of mortality, but large-scale geographic and environmental variation in these competitive effects has yet to be evaluated across the tropical forest biome. We quantified effects of competition on tree-level basal area growth and mortality for trees ≥10-cm diameter across 151 ~1-ha plots in mature tropical forests in Amazonia and tropical Africa by developing nonlinear models that accounted for wood density, tree size, and neighborhood crowding. Using these models, we assessed how water availability (i.e., climatic water deficit) and soil fertility influenced the predicted plot-level strength of competition (i.e., the extent to which growth is reduced, or mortality is increased, by competition across all individual trees). On both continents, tree basal area growth decreased with wood density and increased with tree size. Growth decreased with neighborhood crowding, which suggests that competition is important. Tree mortality decreased with wood density and generally increased with tree size, but was apparently unaffected by neighborhood crowding. Across plots, variation in the plot-level strength of competition was most strongly related to plot basal area (i.e., the sum of the basal area of all trees in a plot), with greater reductions in growth occurring in forests with high basal area, but in Amazonia, the strength of competition also varied with plot-level wood density. In Amazonia, the strength of competition increased with water availability because of the greater basal area of wetter forests, but was only weakly related to soil fertility. In Africa, competition was weakly related to soil fertility and invariant across the shorter water availability gradient. Overall, our results suggest that competition influences the structure and dynamics of tropical forests primarily through eff

Published
2020

7. Hyperdominance in Amazonian forest carbon cycling

Author

Fauset, Sophie, primary, Johnson, Michelle O., additional, Gloor, Manuel, additional, Baker, Timothy R., additional, Monteagudo M., Abel, additional, Brienen, Roel J.W., additional, Feldpausch, Ted R., additional, Lopez-Gonzalez, Gabriela, additional, Malhi, Yadvinder, additional, ter Steege, Hans, additional, Pitman, Nigel C.A., additional, Baraloto, Christopher, additional, Engel, Julien, additional, Pétronelli, Pascal, additional, Andrade, Ana, additional, Camargo, José Luís C., additional, Laurance, Susan G.W., additional, Laurance, William F., additional, Chave, Jerôme, additional, Allie, Elodie, additional, Vargas, Percy Núñez, additional, Terborgh, John W., additional, Ruokolainen, Kalle, additional, Silveira, Marcos, additional, Aymard C., Gerardo A., additional, Arroyo, Luzmila, additional, Bonal, Damien, additional, Ramirez-Angulo, Hirma, additional, Araujo-Murakami, Alejandro, additional, Neill, David, additional, Hérault, Bruno, additional, Dourdain, Aurélie, additional, Torres-Lezama, Armando, additional, Marimon, Beatriz S., additional, Salomão, Rafael P., additional, Comiskey, James A., additional, Réjou-Méchain, Maxime, additional, Toledo, Marisol, additional, Licona, Juan Carlos, additional, Alarcón, Alfredo, additional, Prieto, Adriana, additional, Rudas, Agustín, additional, van der Meer, Peter J., additional, Killeen, Timothy J., additional, Marimon Junior, Ben-Hur, additional, Poorter, Lourens, additional, Boot, Rene G.A., additional, Stergios, Basil, additional, Torre, Emilio Vilanova, additional, Costa, Flávia R.C., additional, Levis, Carolina, additional, Schietti, Juliana, additional, Souza, Priscila, additional, Groot, Nikée, additional, Arets, Eric, additional, Moscoso, Victor Chama, additional, Castro, Wendeson, additional, Coronado, Euridice N. Honorio, additional, Peña-Claros, Marielos, additional, Stahl, Clement, additional, Barroso, Jorcely, additional, Talbot, Joey, additional, Vieira, Ima Célia Guimarães, additional, van der Heijden, Geertje, additional, Thomas, Raquel, additional, Vos, Vincent A., additional, Almeida, Everton C., additional, Davila, Esteban Álvarez, additional, Aragão, Luiz E.O.C., additional, Erwin, Terry L., additional, Morandi, Paulo S., additional, de Oliveira, Edmar Almeida, additional, Valadão, Marco B.X., additional, Zagt, Roderick J., additional, van der Hout, Peter, additional, Loayza, Patricia Alvarez, additional, Pipoly, John J., additional, Wang, Ophelia, additional, Alexiades, Miguel, additional, Cerón, Carlos E., additional, Huamantupa-Chuquimaco, Isau, additional, Di Fiore, Anthony, additional, Peacock, Julie, additional, Camacho, Nadir C. Pallqui, additional, Umetsu, Ricardo K., additional, de Camargo, Plínio Barbosa, additional, Burnham, Robyn J., additional, Herrera, Rafael, additional, Quesada, Carlos A., additional, Stropp, Juliana, additional, Vieira, Simone A., additional, Steininger, Marc, additional, Rodríguez, Carlos Reynel, additional, Restrepo, Zorayda, additional, Muelbert, Adriane Esquivel, additional, Lewis, Simon L., additional, Pickavance, Georgia C., additional, and Phillips, Oliver L., additional

Published
2015
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