Structure and regeneration of Bertholletia excelsa Bonpl. in Brazil nut groves in the Amazon

Detalhes bibliográficos
Autor(a) principal: Tonini, Helio
Data de Publicação: 2019
Outros Autores: Baldoni, Aisy Botega
Tipo de documento: Artigo
Idioma: por
Título da fonte: Ciência Florestal (Online)
Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/22112
Resumo: This work was developed with the objective of comparing the diameter structure and natural regeneration indicators of Brazil nut groves and correlates them to the forest successional stage, seed collection intensity and logging. Data were collected from 54 hectares in Caracaraí (Roraima state) and Itaúba (Mato Grosso state). Frequency distributions were compared by measures of central tendency, variability, form and adherence by Kolmogorov-Smirnov Test. Natural regeneration was correlated with environmental variables, seed collection intensity and fauna activity by Spearman correlation coeficient and Kruskal-Wallis. The Brazil nut groves presented different diametric structures, which can be attributed to differences in young individuals in the smaller diametric classes. The higher density of juveniles in canopy gaps and the lack of a significant correlation between seed collection intensity and natural regeneration indicate that canopy openings from logging could have been the major impact factor in the natural regeneration establishment and in Brazil nut grove rejuvenation.
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spelling Structure and regeneration of Bertholletia excelsa Bonpl. in Brazil nut groves in the AmazonEstrutura e regeneração de Bertholletia excelsa Bonpl. em castanhais nativos da Amazôniarazil nutMato GrossoRoraimaSeed collection intensityCastanheira-do-brasilMato GrossoRoraimaIntensidade de coleta de sementesThis work was developed with the objective of comparing the diameter structure and natural regeneration indicators of Brazil nut groves and correlates them to the forest successional stage, seed collection intensity and logging. Data were collected from 54 hectares in Caracaraí (Roraima state) and Itaúba (Mato Grosso state). Frequency distributions were compared by measures of central tendency, variability, form and adherence by Kolmogorov-Smirnov Test. Natural regeneration was correlated with environmental variables, seed collection intensity and fauna activity by Spearman correlation coeficient and Kruskal-Wallis. The Brazil nut groves presented different diametric structures, which can be attributed to differences in young individuals in the smaller diametric classes. The higher density of juveniles in canopy gaps and the lack of a significant correlation between seed collection intensity and natural regeneration indicate that canopy openings from logging could have been the major impact factor in the natural regeneration establishment and in Brazil nut grove rejuvenation.O trabalho foi desenvolvido com o objetivo de comparar a estrutura diamétrica e os indicadores de regeneração natural em castanhais nativos e correlacioná-los a fase de desenvolvimento da floresta, a intensidade de coleta de sementes e a exploração madeireira. Os dados foram coletados em 54 hectares nos municípios de Caracaraí (RR) e Itaúba (MT). As distribuições de freqüência diamétricas foram comparadas por medidas de tendência central, variabilidade, forma e aderência por Kolmogorov-Smirnov. A regeneração natural foi correlacionada às variáveis ecológicas, intensidade de coleta e a atividade da fauna pelo Coeficiente de Correlação de Spearman e pelo teste de Kolmogorov-Smirnov. Não foi observada correlação entre a taxa de coleta e os indicadores de regeneração e, apesar da alta intensidade de coleta de sementes, observou-se um número satisfatório de indivíduos jovens, indicando que a abertura de clareiras pela exploração florestal pode ter sido o fator de maior impacto no estabelecimento da regeneração natural e no rejuvenescimento dos castanhaisUniversidade Federal de Santa Maria2019-06-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/2211210.5902/1980509822112Ciência Florestal; Vol. 29 No. 2 (2019); 607-621Ciência Florestal; v. 29 n. 2 (2019); 607-6211980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/22112/pdfCopyright (c) 2019 Ciência Florestalinfo:eu-repo/semantics/openAccessTonini, HelioBaldoni, Aisy Botega2019-09-05T20:23:16Zoai:ojs.pkp.sfu.ca:article/22112Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2019-09-05T20:23:16Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv Structure and regeneration of Bertholletia excelsa Bonpl. in Brazil nut groves in the Amazon
Estrutura e regeneração de Bertholletia excelsa Bonpl. em castanhais nativos da Amazônia
title Structure and regeneration of Bertholletia excelsa Bonpl. in Brazil nut groves in the Amazon
spellingShingle Structure and regeneration of Bertholletia excelsa Bonpl. in Brazil nut groves in the Amazon
Tonini, Helio
razil nut
Mato Grosso
Roraima
Seed collection intensity
Castanheira-do-brasil
Mato Grosso
Roraima
Intensidade de coleta de sementes
title_short Structure and regeneration of Bertholletia excelsa Bonpl. in Brazil nut groves in the Amazon
title_full Structure and regeneration of Bertholletia excelsa Bonpl. in Brazil nut groves in the Amazon
title_fullStr Structure and regeneration of Bertholletia excelsa Bonpl. in Brazil nut groves in the Amazon
title_full_unstemmed Structure and regeneration of Bertholletia excelsa Bonpl. in Brazil nut groves in the Amazon
title_sort Structure and regeneration of Bertholletia excelsa Bonpl. in Brazil nut groves in the Amazon
author Tonini, Helio
author_facet Tonini, Helio
Baldoni, Aisy Botega
author_role author
author2 Baldoni, Aisy Botega
author2_role author
dc.contributor.author.fl_str_mv Tonini, Helio
Baldoni, Aisy Botega
dc.subject.por.fl_str_mv razil nut
Mato Grosso
Roraima
Seed collection intensity
Castanheira-do-brasil
Mato Grosso
Roraima
Intensidade de coleta de sementes
topic razil nut
Mato Grosso
Roraima
Seed collection intensity
Castanheira-do-brasil
Mato Grosso
Roraima
Intensidade de coleta de sementes
description This work was developed with the objective of comparing the diameter structure and natural regeneration indicators of Brazil nut groves and correlates them to the forest successional stage, seed collection intensity and logging. Data were collected from 54 hectares in Caracaraí (Roraima state) and Itaúba (Mato Grosso state). Frequency distributions were compared by measures of central tendency, variability, form and adherence by Kolmogorov-Smirnov Test. Natural regeneration was correlated with environmental variables, seed collection intensity and fauna activity by Spearman correlation coeficient and Kruskal-Wallis. The Brazil nut groves presented different diametric structures, which can be attributed to differences in young individuals in the smaller diametric classes. The higher density of juveniles in canopy gaps and the lack of a significant correlation between seed collection intensity and natural regeneration indicate that canopy openings from logging could have been the major impact factor in the natural regeneration establishment and in Brazil nut grove rejuvenation.
publishDate 2019
dc.date.none.fl_str_mv 2019-06-30
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/22112
10.5902/1980509822112
url https://periodicos.ufsm.br/cienciaflorestal/article/view/22112
identifier_str_mv 10.5902/1980509822112
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/22112/pdf
dc.rights.driver.fl_str_mv Copyright (c) 2019 Ciência Florestal
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2019 Ciência Florestal
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Florestal; Vol. 29 No. 2 (2019); 607-621
Ciência Florestal; v. 29 n. 2 (2019); 607-621
1980-5098
0103-9954
reponame:Ciência Florestal (Online)
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Ciência Florestal (Online)
collection Ciência Florestal (Online)
repository.name.fl_str_mv Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv ||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br
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