Search Results - "Amazon basin"

The role of ecosystem transpiration in creating alternate moisture regimes by influencing atmospheric moisture convergence by Makarieva, A.M., Nefiodov, A.V., Nobre, A.D., Baudena, M., Bardi, U., Sheil, D., Saleska, S.R., Molina, R.D., Rammig, A.

“…Recently, changes in plant transpiration across the Amazon basin were shown to be associated disproportionately with changes in rainfall, suggesting that even small declines in transpiration (e.g., from deforestation) would lead to much larger declines in rainfall. …”
Get full text

Present spatial diversity patterns of Theobroma cacao L. in the neotropics reflect genetic differentiation in Pleistocene refugia followed by human-influenced dispersal by Thomas, E., Zonneveld, M. van, Loo, J., Hodgkin, T., Galluzzi, Gea, Etten, Jacob van

“…Cacao (Theobroma cacao L.) is indigenous to the Amazon basin, but is generally believed to have been domesticated in Mesoamerica for the production of chocolate beverage. …”
Get full text

Biogeography and taxonomy of Mononychellus species associated with Manihot esculenta Crantz in the Americas by Guerrero, J.M., Flechtmann, CHW, Duque E., Myriam Cristina, Gaigl, A, Bellotti, Anthony C., Moraes, G.J. de, Braun, Ann R.

“…We found M. mcgregori Flechtmann and Baker in humid highlands (interandean valleys) of Colombia, Ecuador and Peru, in subtropical southern Brazil, and in the Colombian region of the Amazon Basin (humid lowlands). M. planki (McGregor) was collected from one field in northeast Brazil and from five fields in Colombia. …”
Get full text

Diversity of fruit fly (Diptera: Tephritidae) Species in French Guiana: their main host plants and associated parasitoids during the period 19942003 and prospects for management by Vayssières, Jean-François, Cayol, J.P., Caplong, P., Seguret, J., Midgarden, D., Sauers-Muller, A., Zucchi, R., Uramoto, K., Malavasi, A.

“…Our data provide baseline information about the tephritid species ofeconomic importance present in French Guiana and assist in developing potential future controlprograms of both the B. carambolae and Anastrepha species in the Amazon Basin. These preliminary results are discussed in the light of their implication for rainforest conservation effortsand also evolutionary relationships between fruit flies and their hosts…”
Get full text

Spatial distribution of Bertholletia excelsa in selectively logged forests of the Peruvian Amazon by Rockwell, Cara A., Guariguata, Manuel R., Menton, M., Arroyo Quispe, E., Quaedvlieg, J., Warren-Thomas, E., Fernández Silva, H., Jurado Rojas, E.E., Kohagura Arrunátegui, J.A.H., Meza Vega, L.A., Quenta Hancco, R., Revilla Vera, O., Valera Tito, J.F., Villarroel Panduro, B.T., Yucra Salas, J.J.

“…To date, the spatial distribution pattern and density of Brazil nut trees in logged forest stands is unclear across the Amazon basin. We asked the following questions: (1) What are the densities and spatial distributions of Brazil nut juveniles (10 ≤ dbh < 40 cm) and adults (≥ 40 cm dbh) in three selectively logged Brazil nut concessions (1413 ha sampled) in Madre de Dios, Peru; (2) What is the spatial relationship between adults and juveniles (10 ≤ dbh < 30 cm); and (3) What is the spatial relationship between juveniles (10 ≤ dbh <30 cm) and cut stumps (≥ 10 y)? …”
Get full text

An expert system model for mapping tropical wetlands and peatlands reveals South America as the largest contributor by Gumbricht, Thomas, Román Cuesta, Rosa María, Verchot, Louis V., Herold, Martin, Wittmann, Florian, Householder, Ethan, Herold, Nadine, Murdiyarso, Daniel

“…Unlike current understanding, our estimates suggest that South America and not Asia contributes the most to tropical peatland area and volume (ca. 44% for both) partly related to some yet unaccounted extended deep deposits but mainly to extended but shallow peat in the Amazon Basin. Brazil leads the peatland area and volume contribution. …”
Get full text

Forest degradation and inter-annual tree level Brazil Nut production in the Peruvian Amazon by Jensen, M., Guariguata, Manuel R., Chiriboga-Arroyo, Fidel, Quaedvlieg, J., Vargas Quispe, F.M., Arroyo Quispe, E., García Roca, M.R., Corvera Gomringer, Ronald, Kettle, Christopher J.

“…Brazil nuts are an economically important non-timber forest product throughout the Amazon Basin, but the forests in which they grow are under threat of severe degradation by logging, road building, agricultural expansion, and forest fires. …”
Get full text

Sustainability of Brazilian forest concessions by Sist, P., Piponiot, C., Kanashiro, M., Pena-Claros, M., Putz, F.E., Schulze, M., Verissimo, A., Vidal, E.

“…For this we used the volume dynamics with differential equations model (VDDE) calibrated for the Amazon Basin with a Bayesian framework with data from 3500 ha of forest plots monitored for as long as 30 years after selective logging. …”
Get full text

Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru by Humanes Fuente, V., Ferrero, M. E., Muñoz, A. A., González Reyes, Á., Requena Rojas, E. J., Barichivich, J., Inga, J. G., Layme Huaman, Eva Trinidad

“…Our results show that montane tropical tree rings can be used to reconstruct precipitation with exceptionally high fidelity, characterize the interannual to multidecadal variability, and identify remote forcings in the hydroclimate over the Andean Amazon Basin of Peru.…”
Get full text
Get full text

Past decade above-ground biomass change comparisons from four multi-temporal global maps by Araza, Arnan, Herold, Martin, Bruin, Sytze de, Ciais, Philippe, Gibbs, David A., Harris, Nancy, Santoro, Maurizio, Wigneron, Jean-Pierre, Yang, Hui, Málaga, Natalia, Nesha, Karimon, Rodríguez Veiga, Pedro, Brovkina, Olga, Brown, Hugh C. A., Chanev, Milen, Dimitrov, Zlatomir, Filchev, Lachezar, Fridman, Jonas, García, Mariano, Gikov, Alexander, Govaere, Leen, Dimitrov, Petar, Moradi, Fardin, Esquivel Muelbert, Adriane, Novotný, Jan, Pugh, Thomas A. M., Schelhaas, Mart-Jan, Schepaschenko, Dmitry, Stereńczak, Krzysztof, Hein, Lars

“…However, disagreement between maps is still large in key forest regions such as the Amazon basin. The overall AGB map cross-correlation between maps varied in the range 0.11–0.29 (r). …”
Get full text

Does the disturbance hypothesis explain the biomass increase in basin-wide Amazon forest plot data? by Gloor, M., Phillips, Oliver L., Lloyd, J.J., Lewis, S.L., Malhi, Y., Baker, T.R., López Gonzalez, G., Peacock, J., Almeida, S., Alves de Oliveira, A.C., Álvarez, E., Amaral, I., Arroyo, L., Aymard, G., Banki, O., Blanc, Lilian, Bonal, D., Brando, P., Chao, K.J., Chaves, J., DÁVila, N., Erwin, T., Silva, J., Fiore, A. di, Feldpausch, T.R., Freitas, A., Herrera, R., Higuchi, N., Honorio, E., Jiménez, E., Killeen, T., Laurance, W., Mendoza, C., Monteagudo, A., Andrade, A., Neill, D., Nepstad, D., Núñez Vargas, P., PeÑUela, M. C., Cruz, A.P., Prieto, A., Pitman, N., Quesada, C., Salomão, R., Silveira, Marcos, Schwarz, M., Stropp, J., Ramírez, F., Ramírez, H., Rudas, A., Steege, H. ter, Silva, J.N.M., Torres, A., Terborgh, J.W., Vásquez, R., Heijden, G. van der

“…Abstract Positive aboveground biomass trends have been reported from old-growth forests across the Amazon basin and hypothesized to reflect a large-scale response to exterior forcing. …”
Get full text

Nut Production in Bertholletia excelsa across a Logged Forest Mosaic: Implications for Multiple Forest Use by Rockwell, Cara A., Guariguata, Manuel R., Menton, M., Arroyo Quispe, E., Quaedvlieg, J., Warren-Thomas, E., Fernández Silva, H., Jurado Rojas, E.E., Kohagura Arrunátegui, J.A.H., Meza Vega, L.A., Revilla Vera, O., Quenta Hancco, R., Valera Tito, J.F., Villarroel Panduro, B.T., Yucra Salas, J.J.

“…Brazil nut (Bertholletia excelsa, Lecythidaceae) is one of the world’s most economically-important NTFP species extracted almost entirely from natural forests across the Amazon Basin. An obligate out-crosser, Brazil nut flowers are pollinated by large-bodied bees, a process resulting in a hard round fruit that takes up to 14 months to mature. …”
Get full text

Amazon Region by International Center for Tropical Agriculture

“…The Amazon Basin is so diverse that one could say many Amazons exist, not just one. …”
Get full text

Seroprevalence of Rickettsia rickettsii and Rickettsia amblyommii in horses in three municipalities in the state of Pará, Brazil by Andersson, Emelie

“…The disease seems to be reemerging and cases have been documented in several states, but very little is known about the occurrence in the Amazon basin. There are no cases of BSF reported in this area but medical care and diagnostic tools are not always available, therefor it is possible that cases are occurring without being diagnosed. …”

Effects of agroforestry and climate on cocoa yield, pests and diseases by Asitoakor, B.K.

“…Cocoa (Theobroma cacao) originates from the Amazon basin in South America. The crop is cultivated across many tropical regions, with the largest production from West Africa, where Ghana and Cote d’Ivoire contribute 70% of global production. …”
Get full text

A checklist of natural enemies of Diaphorina citri Kuwayama (Hemiptera: Liviidae) in the department of Valle del Cauca, Colombia and the world. by Kondo, Takumasa, González F., Guillermo, Tauber, Catherine, Guzmán Sarmiento, Yoan Camilo, Vinasco Mondragon, Andrés Felipe, Forero, Dimitri

Get full text
Get full text