Periódico

Phenology, structure and seed production of indigenous populations of the Brazil nut tree in Roraima and socio-economic characteristics of extractive communities

Autor principal: Tonini, Helio
Outros Autores: Lopes, Carlos Eugenio Vitoriano, Borges, Renato Alves, Kaminski, Paulo Emilio, Alves, Marcia de Souza, Fagundes, Paulo Renato de Oliveira
Grau: Periódico
Idioma: por
Publicado em: Editora 2014
Acesso em linha: https://boletimcn.museu-goeldi.br/bcnaturais/article/view/533
id ojs-article-533
recordtype ojs
spelling ojs-article-5332022-05-06T19:18:40Z Phenology, structure and seed production of indigenous populations of the Brazil nut tree in Roraima and socio-economic characteristics of extractive communities Fenologia, estrutura e produção de sementes em castanhais nativos de Roraima e características socioeconômicas dos extrativistas Tonini, Helio Lopes, Carlos Eugenio Vitoriano Borges, Renato Alves Kaminski, Paulo Emilio Alves, Marcia de Souza Fagundes, Paulo Renato de Oliveira This paper assesses the phenology, population structure and the fruit and seed production of native Brazil nut trees in the state of Roraima, and characterizes the extractive communities and extraction system practiced in this region of Amazonia. Characterization of the extractive communities and extraction system was done through questionnaires and panel discussions conducted between 2005 and 2010. Analyses of population structure, phenology and fruit and seed production were conducted at sites located in the municipalities of Caracaraí and São João da Baliza, installed between the years 2005-2008. We found that the extraction of Brazil nut makes up a significant part of the income of riverine and indigenous communities but is performed with low levels of social organization, little government support and without any control over the processes that can lead to contamination by aflatoxins. The density and productivity of Brazil nut trees are within the range expected for the Amazon region. We found that Brazil nut tree flowering occurs in the dry season, and lasts five to six months. Dispersal of fruits occurs during four to six months in the rainy season, and peaks between April to June. Os objetivos deste artigo foram estudar a fenologia, a estrutura populacional e a produção de frutos e sementes em castanhais nativos de Roraima, além de caracterizar as comunidades extrativistas e o sistema de extração praticado nesta região da Amazônia. A caracterização do extrativismo foi realizada com base na aplicação de questionários e painéis técnicos, que se iniciaram em 2005 e finalizaram em 2010. A estrutura, produção e fenologia dos castanhais foram avaliadas em parcelas permanentes instaladas entre os anos de 2005 a 2008 nos municípios de Caracaraí e São João da Baliza. A extração de castanha-do-brasil representa significativo retorno financeiro para as famílias de ribeirinhos e indígenas de baixa renda no sul do estado de Roraima, porém é praticada com baixa organização social, pouco apoio governamental e sem nenhum controle sobre os processos que podem levar à contaminação das castanhas por aflatoxinas. A densidade e a produtividade dos castanhais estão dentro do esperado para a Amazônia. Nesta região, a castanheira-do-brasil floresce predominantemente na estação seca, com duração de cinco a seis meses. A dispersão dos frutos ocorre durante a estação chuvosa, com pico nos meses de abril a junho. Editora 2014-08-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://boletimcn.museu-goeldi.br/bcnaturais/article/view/533 10.46357/bcnaturais.v9i2.533 Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais; v. 9 n. 2 (2014): Boletim do Museu Paraense Emílio Goeldi. Ciências Naturais; 399-414 Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais; Vol 9 No 2 (2014): Boletim do Museu Paraense Emílio Goeldi. Ciências Naturais; 399-414 2317-6237 1981-8114 por https://boletimcn.museu-goeldi.br/bcnaturais/article/view/533/275 Copyright (c) 2021 Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais http://creativecommons.org/licenses/by-nc-nd/4.0
institution Periódicos Museu Paraense Emílio Goeldi
collection periodicosMPEG-bcnaturais
language por
format Periódico
author Tonini, Helio
spellingShingle Tonini, Helio
Phenology, structure and seed production of indigenous populations of the Brazil nut tree in Roraima and socio-economic characteristics of extractive communities
author-letter Tonini, Helio
author2 Lopes, Carlos Eugenio Vitoriano
Borges, Renato Alves
Kaminski, Paulo Emilio
Alves, Marcia de Souza
Fagundes, Paulo Renato de Oliveira
author2Str Lopes, Carlos Eugenio Vitoriano
Borges, Renato Alves
Kaminski, Paulo Emilio
Alves, Marcia de Souza
Fagundes, Paulo Renato de Oliveira
title Phenology, structure and seed production of indigenous populations of the Brazil nut tree in Roraima and socio-economic characteristics of extractive communities
title_short Phenology, structure and seed production of indigenous populations of the Brazil nut tree in Roraima and socio-economic characteristics of extractive communities
title_full Phenology, structure and seed production of indigenous populations of the Brazil nut tree in Roraima and socio-economic characteristics of extractive communities
title_fullStr Phenology, structure and seed production of indigenous populations of the Brazil nut tree in Roraima and socio-economic characteristics of extractive communities
title_full_unstemmed Phenology, structure and seed production of indigenous populations of the Brazil nut tree in Roraima and socio-economic characteristics of extractive communities
title_sort phenology, structure and seed production of indigenous populations of the brazil nut tree in roraima and socio-economic characteristics of extractive communities
publisher Editora
publishDate 2014
url https://boletimcn.museu-goeldi.br/bcnaturais/article/view/533
_version_ 1787152958752817152
score 11.755432

Registros relacionados