Results 11 to 20 of about 6,816 (224)

Interaction between floral rewards and floral symmetry shapes diversification dynamics in Amazonian trees [PDF]

New Phytologist, Volume 248, Issue 6, Page 3297-3311, December 2025.
Summary Floral zygomorphy, or monosymmetry, is thought to have a positive effect on the diversification rates of angiosperms, but its true impact is still an open topic. Given the controversy surrounding this matter, our study evaluates whether rewards such as nectar and pollen produced by floral structures evolve in correlation with floral symmetry ...
Diego Graciano, Gustavo Burin, Sandra Maria Carmello‐Guerreiro, Elisabeth Dantas Tölke   +3 more
wiley   +2 more sources

Brazil nut journey under future climate change in Amazon. [PDF]

PLoS ONE
Climate change is among the principal threats to global terrestrial biodiversity, especially to megadiverse ecosystems such as the Amazon rainforest. In this study, we investigate how it could affect an iconic forest species-Bertholletia excelsa-(the ...
Luciano J S Anjos, Gabriela S R Gonçalves, Vítor A B Dutra, Amanda G Rosa, Lucyana B Santos, Márcia N R Barros, Everaldo B de Souza, Peter M de Toledo   +7 more
doaj   +2 more sources

Barium Levels in Brazil Nuts: A Global Review of the Literature [PDF]

Journal of Food Science, Volume 90, Issue 11, November 2025.
ABSTRACT Brazil nuts are often recommended for their high selenium content but have also been reported to contain elevated levels of barium, a potentially toxic element. Regular daily consumption of Brazil nuts may exceed the currently suggested tolerable daily intake (TDI) for barium (ca. 0.2 mg/kg body weight/day).
Christian Koeder, Markus Keller
wiley   +2 more sources

Effects of Fermentation on the Bioactive, Functional, and Technological Characteristics of Babassu and Brazil Nut Flours [PDF]

Journal of Food Science, Volume 90, Issue 9, September 2025.
ABSTRACT This study provides a comprehensive evaluation of the composition, bioactivity, and techno‐functional properties of babassu (Attalea speciosa) mesocarp and Brazil nut (Bertholletia excelsa) flours, highlighting their potential as novel functional ingredients. Fermentation effects of Saccharomyces cerevisiae var.
Letícia Nunes da Cruz, Beatriz Veltre Costa, Caroline Lopes, Cecília Midori Hosoda Henriques, Ruann Janser Soares de Castro   +4 more
wiley   +2 more sources

Insights From a New 1‐ha Permanent Forest Plot Reveal Differences Between Habitat Type and Similarities Between Forest Type in the Southwestern Amazon [PDF]

Ecology and Evolution, Volume 15, Issue 5, May 2025.
Southwestern Amazon forests are highly diverse, but information on how tree diversity and composition changes between habitat and forest types remains scarce. We conducted floristic analyses to investigate these changes across a precipitation gradient, between habitat types, and between disturbed and old‐growth forest.
Riley P. Fortier, Thalia Corahua‐Espinoza, Varun Swamy, Kenneth J. Feeley, Geoffrey R. Gallice   +4 more
wiley   +2 more sources

Nut production in Bertholletia excelsa across a logged forest mosaic: implications for multiple forest use [PDF]

, 2015
Although many examples of multiple-use forest management may be found in tropical smallholder systems, few studies provide empirical support for the integration of selective timber harvesting with non-timber forest product (NTFP) extraction.
A Chávez, A Lawrence, A Lawrence, A Malmer, AD Johns, AE Duchelle, AE Duchelle, AE Duchelle, AE Duchelle, AJ Plumptre, B Hérault, Betxy Tabita Villarroel Panduro, BW Griscom, BW Griscom, C Baraloto, C Baraloto, C Benneker, C Cerdan Rojas, C García-Fernández, C Herrero-Jáuregui, C Padoch, C Sabogal, CA Klimas, CA Peres, CA Peres, CA Rockwell, Cara A. Rockwell, CL Staudhammer, CP Van Schaik, D Pearce, D Sheil, DP Dykstra, E Lima, E Ortiz, E Vidal, Edwin Eduardo Jurado Rojas, Eleanor Warren-Thomas, Eriks Arroyo Quispe, FE Putz, GH Shepard Jr, GS Amacher, GS Hartshorn, Harol Fernandez Silva, J Ghazoul, J Ghazoul, J Nabe-Nielsen, J Quaedvlieg, J Terborgh, JC Licona, JJ Scullion, JM Pires, JMT Haugaasen, Jonatan Frank Valera Tito, José Andrés Hideki Kohagura Arrunátegui, JQ Chambers, JS Denslow, JS Johns, Juan José Yucra Salas, Julia Quaedvlieg, JW Clay, KA Kainer, KA Kainer, KA Kainer, Kamal Bawa, L Rist, LB Fortini, LHO Wadt, LHO Wadt, Luis Alberto Meza Vega, M Menton, M Pinard, M Pinedo-Vasquez, M Schulze, M Schulze, M Soriano, M Tobler, M Zenteno, M Zenteno, M Zenteno, MA Pinard, MAF Ros-Tonen, Manuel R. Guariguata, Mary Menton, MC Cavalcante, MG Fonseca, MR Guariguata, MR Guariguata, MR Guariguata, MR Trivedi, MW Tobler, OL Phillips, Olivia Revilla Vera, P Barreto, P Cronkleton, P Shanley, P Shearman, P Sist, PA Zuidema, PB Camargo, PM Fearnside, PS Sujii, R Giudice, RE Cossío-Solano, RJW Brienen, Roger Quenta Hancco, RP Salomão, RR Sears, S Humphries, S Shackleton, S Vieira, SA Mori, SA Mori, SG Perz, SK Pattanayak, SV Coslovsky, T Haugaasen, T Panayotou, TJ Synnott, TP Holmes, TS Fredericksen, V Garrish, VM Viana, WC Cano   +122 more
core   +3 more sources

Resistência mecânica do pericarpo de frutos de Bertholletia excelsa Bonpl. (Lecythidaceae). [PDF]

, 2019
Pesquisas estão sendo desenvolvidas para a utilização de matérias-primas resistentes como alternativa para os diversos usos de madeira ou para serem combinadas com resíduos madeireiros, na confecção de lâminas e aglomerados.
FAUSTINO, C. de L., WADT, L. H. de O.
core   +1 more source

CRESCIMENTO E EFICIÊNCIA DO USO DA ÁGUA DE PLANTAS JOVENS DE CASTANHEIRA-DA-AMAZÔNIA EM ÁREA DEGRADADA E SUBMETIDAS À ADUBAÇÃO

Ciência Florestal, 2012
This work objectives to analyze the absolute growth rate (AGR), leaf gas exchange and leaf water potential (YW) of young Brazil nut (Bertholletia excelsa Humb.
Marciel José Ferreira, José Francisco de Carvalho Gonçalves, João Baptista Silva Ferraz   +2 more
doaj   +3 more sources

Brazil nuts: determination of natural elements and aflatoxin Castanha do Brasil: determinação de elementos naturais e aflatoxinas

Acta Amazonica, 2012
A study was carried out to evaluate the association of levels of radioactivity, selenium and aflatoxin in shelled Brazil nuts, which were classified in different sizes, for export.
Maristela Martins, Ariane Mendonça Pacheco, Ana Cyra Santos Lucas, Avacir Casanova Andrello, Carlos Roberto Appoloni, Jose Junior Mendonça Xavier   +5 more
doaj   +1 more source

First Record of Brazil nut Pollinators Outside Amazon Biome

Floresta e Ambiente, 2022
We present the first records of insect visitors and pollinators of Bertholletia excelsa (Lecythidaceae) in a 25 years plantation outside the Amazon biome, flowering and producing Brazil nuts. We installed a platform to observe and photograph the insects.
Clarissa de Moraes Sousa, Rodolfo Soares de Almeida, Gabriel Sterzeck Vittori, Anatoly Queiroz Abreu Torres, Aloysio Souza de Moura, Favízia Freitas de Oliveira, Matheus Santos Luz, Stephan Malfitano Carvalho, Lucas Lopes da Silveira Peres, Marco Aurélio Leite Fontes, Soraya Alvarenga Botelho, Lucas Amaral de Melo   +11 more
doaj   +1 more source