Brazil nut conservation through shifting cultivation.

Detalhes bibliográficos
Autor(a) principal: PAIVA, P. M.
Data de Publicação: 2011
Outros Autores: GUEDES, M. C., FUNI, C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/902187
Resumo: The regeneration of Brazil nut trees depends on tree-fall gaps in the forest. However, shifting cultivation fallows also create comparable biotic and abiotic opportunities for the dispersion and establishment of this gap-loving species. At the same time, the ability of Brazil nut trees to resprout enables fallow individuals to survive successive slash-and-burn cycles. Recognizing the importance of shifting cultivation for the food security of forest dwellers, we investigated whether the high level of Brazil nut regeneration found in cultivation fallows could be explained by the resprouting capability of Brazil nut trees, the number of cultivation cycles, past agricultural use and distance to the nearest conspecific productive adults. We found that the Brazil nut tree population density increased from 8.86 trees ha?1 to 13.69 trees ha?1 and 27.09 trees ha?1 at sites after one, two and three or more shifting cultivation cycles, respectively. As a consequence of resprouting, after a certain number of shifting cultivation cycles, the fallows become dominated by Brazil nut trees, and the landholders may decide to preserve them and to exclude enriched sites from future agricultural use. Protected for their extractive value, the secondary forests spontaneously enriched with Brazil nut trees are allowed to develop into nut-producing forests that have reduced chances of conversion into crops or pastures, thus reversing the classical process of Amazon forest degradation.
id EMBR_a7bbd62fcef77ac17a45e4e7ec72c030
oai_identifier_str oai:www.alice.cnptia.embrapa.br:doc/902187
network_acronym_str EMBR
network_name_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository_id_str 2154
spelling Brazil nut conservation through shifting cultivation.CultivoCastanhaThe regeneration of Brazil nut trees depends on tree-fall gaps in the forest. However, shifting cultivation fallows also create comparable biotic and abiotic opportunities for the dispersion and establishment of this gap-loving species. At the same time, the ability of Brazil nut trees to resprout enables fallow individuals to survive successive slash-and-burn cycles. Recognizing the importance of shifting cultivation for the food security of forest dwellers, we investigated whether the high level of Brazil nut regeneration found in cultivation fallows could be explained by the resprouting capability of Brazil nut trees, the number of cultivation cycles, past agricultural use and distance to the nearest conspecific productive adults. We found that the Brazil nut tree population density increased from 8.86 trees ha?1 to 13.69 trees ha?1 and 27.09 trees ha?1 at sites after one, two and three or more shifting cultivation cycles, respectively. As a consequence of resprouting, after a certain number of shifting cultivation cycles, the fallows become dominated by Brazil nut trees, and the landholders may decide to preserve them and to exclude enriched sites from future agricultural use. Protected for their extractive value, the secondary forests spontaneously enriched with Brazil nut trees are allowed to develop into nut-producing forests that have reduced chances of conversion into crops or pastures, thus reversing the classical process of Amazon forest degradation.PAULO MARCELO VERAS DE PAIVA, CPAF-AP; MARCELINO CARNEIRO GUEDES, CPAF-AP; Claudia Funi, Programa de Pós-Graduação em Biodiversidade Tropical, Universidade Federal do Amapá.PAIVA, P. M.GUEDES, M. C.FUNI, C.2011-10-04T11:11:11Z2011-10-04T11:11:11Z2011-10-04T11:11:11Z2011-10-04T11:11:11Z2011-10-0420112017-05-29T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleForest Ecology and Management, v. 261, n. 3, p. 508-541, Feb. 2011.http://www.alice.cnptia.embrapa.br/alice/handle/doc/902187enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-15T22:30:43Zoai:www.alice.cnptia.embrapa.br:doc/902187Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-15T22:30:43Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Brazil nut conservation through shifting cultivation.
title Brazil nut conservation through shifting cultivation.
spellingShingle Brazil nut conservation through shifting cultivation.
PAIVA, P. M.
Cultivo
Castanha
title_short Brazil nut conservation through shifting cultivation.
title_full Brazil nut conservation through shifting cultivation.
title_fullStr Brazil nut conservation through shifting cultivation.
title_full_unstemmed Brazil nut conservation through shifting cultivation.
title_sort Brazil nut conservation through shifting cultivation.
author PAIVA, P. M.
author_facet PAIVA, P. M.
GUEDES, M. C.
FUNI, C.
author_role author
author2 GUEDES, M. C.
FUNI, C.
author2_role author
author
dc.contributor.none.fl_str_mv PAULO MARCELO VERAS DE PAIVA, CPAF-AP; MARCELINO CARNEIRO GUEDES, CPAF-AP; Claudia Funi, Programa de Pós-Graduação em Biodiversidade Tropical, Universidade Federal do Amapá.
dc.contributor.author.fl_str_mv PAIVA, P. M.
GUEDES, M. C.
FUNI, C.
dc.subject.por.fl_str_mv Cultivo
Castanha
topic Cultivo
Castanha
description The regeneration of Brazil nut trees depends on tree-fall gaps in the forest. However, shifting cultivation fallows also create comparable biotic and abiotic opportunities for the dispersion and establishment of this gap-loving species. At the same time, the ability of Brazil nut trees to resprout enables fallow individuals to survive successive slash-and-burn cycles. Recognizing the importance of shifting cultivation for the food security of forest dwellers, we investigated whether the high level of Brazil nut regeneration found in cultivation fallows could be explained by the resprouting capability of Brazil nut trees, the number of cultivation cycles, past agricultural use and distance to the nearest conspecific productive adults. We found that the Brazil nut tree population density increased from 8.86 trees ha?1 to 13.69 trees ha?1 and 27.09 trees ha?1 at sites after one, two and three or more shifting cultivation cycles, respectively. As a consequence of resprouting, after a certain number of shifting cultivation cycles, the fallows become dominated by Brazil nut trees, and the landholders may decide to preserve them and to exclude enriched sites from future agricultural use. Protected for their extractive value, the secondary forests spontaneously enriched with Brazil nut trees are allowed to develop into nut-producing forests that have reduced chances of conversion into crops or pastures, thus reversing the classical process of Amazon forest degradation.
publishDate 2011
dc.date.none.fl_str_mv 2011-10-04T11:11:11Z
2011-10-04T11:11:11Z
2011-10-04T11:11:11Z
2011-10-04T11:11:11Z
2011-10-04
2011
2017-05-29T11:11:11Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Forest Ecology and Management, v. 261, n. 3, p. 508-541, Feb. 2011.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/902187
identifier_str_mv Forest Ecology and Management, v. 261, n. 3, p. 508-541, Feb. 2011.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/902187
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
_version_ 1817695201300316160