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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
29/05/2008 |
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Data da última atualização: |
26/08/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WADT, L. H. de O.; KAINER, K. A.; STAUDHAMMER, C. L.; SERRANO, R. O. P. |
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Afiliação: |
LUCIA HELENA DE OLIVEIRA WADT, CPAF-AC; Karen A. Kainer, University of Florida; C. L. Staudhammer, University of Florida; Rodrigo O. P. Serrano, Universidade Federal do Acre (Ufac). |
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Título: |
Sustainable forest use in Brazilian extractive reserves: natural regeneration of Brazil nut in exploited populations. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Biological Conservation, v. 141, n. 1, p. 332-346, Jan. 2008. |
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ISSN: |
0006-3207 |
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DOI: |
10.1016/j.biocon.2007.10.007 |
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Idioma: |
Inglês |
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Conteúdo: |
The emergence of Brazilian extractive reserves reinforced the notion that sustainable forest use could play a central role in conservation. Brazil nut is considered a model non-timber product for promoting conservation through use. Demographic studies, however, have demonstrated differential impacts of nut harvest on Brazil nut population structure. Comparing three populations with different forest use histories, degrees of road access, and recent levels of nut harvest, we asked: (1) Are they exhibiting regeneration failure? and (2) Are seedling/sapling densities explained by adult Brazil nut structure, fruit fate and/or overall forest structure? We installed four 9-ha plots in each site to census Brazil nut trees > 10 cm dbh, and within each plot, 36 subplots (25 × 25 m each) to quantify regeneration, overall forest structure, and open and closed fruit counts. Approximately 29-55% of fruits was unharvested, and more than 90% of these was opened by scatterhoarding dispersers. Population structure approximated a reverse-J size class distribution, with seedling densities varying from 3.2 to 5.8 individuals ha-1. We conclude that within the current harvest context, regeneration is sufficient for population persistence in our sites, at least over the medium term. The socioeconomics of sustainably managing Brazil nut is the greater challenge, involving interlinked competitive land uses, nut quality, and substantial increases in local income from harvest. Some of these challenges are being addressed in Brazil, Bolivia and Peru, providing hope that this cornerstone extractive species will continue to play a prominent role in the ecological and economic landscape of Amazonia. MenosThe emergence of Brazilian extractive reserves reinforced the notion that sustainable forest use could play a central role in conservation. Brazil nut is considered a model non-timber product for promoting conservation through use. Demographic studies, however, have demonstrated differential impacts of nut harvest on Brazil nut population structure. Comparing three populations with different forest use histories, degrees of road access, and recent levels of nut harvest, we asked: (1) Are they exhibiting regeneration failure? and (2) Are seedling/sapling densities explained by adult Brazil nut structure, fruit fate and/or overall forest structure? We installed four 9-ha plots in each site to census Brazil nut trees > 10 cm dbh, and within each plot, 36 subplots (25 × 25 m each) to quantify regeneration, overall forest structure, and open and closed fruit counts. Approximately 29-55% of fruits was unharvested, and more than 90% of these was opened by scatterhoarding dispersers. Population structure approximated a reverse-J size class distribution, with seedling densities varying from 3.2 to 5.8 individuals ha-1. We conclude that within the current harvest context, regeneration is sufficient for population persistence in our sites, at least over the medium term. The socioeconomics of sustainably managing Brazil nut is the greater challenge, involving interlinked competitive land uses, nut quality, and substantial increases in local income from harvest. Some of these challenges ... Mostrar Tudo |
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Palavras-Chave: |
Castanha do brasil; Extractive reserve; Manejo florestal; Nuez del Brasil; Productos forestales no madereros; Produto florestal não madeireiro (PFNM); Regeneración natural; Reserva extractiva; Reserva extrativista; Silvicultura sustentable. |
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Thesagro: |
Bertholletia excelsa; Castanha do pará; Regeneração natural. |
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Thesaurus Nal: |
Brazil nuts; Natural regeneration; Nontimber forest products; Sustainable forestry. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/506234/1/17643.pdf
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Marc: |
LEADER 02949naa a2200385 a 4500
001 1506234
005 2024-08-26
008 2008 bl uuuu u00u1 u #d
022 $a0006-3207
024 7 $a10.1016/j.biocon.2007.10.007$2DOI
100 1 $aWADT, L. H. de O.
245 $aSustainable forest use in Brazilian extractive reserves$bnatural regeneration of Brazil nut in exploited populations.$h[electronic resource]
260 $c2008
520 $aThe emergence of Brazilian extractive reserves reinforced the notion that sustainable forest use could play a central role in conservation. Brazil nut is considered a model non-timber product for promoting conservation through use. Demographic studies, however, have demonstrated differential impacts of nut harvest on Brazil nut population structure. Comparing three populations with different forest use histories, degrees of road access, and recent levels of nut harvest, we asked: (1) Are they exhibiting regeneration failure? and (2) Are seedling/sapling densities explained by adult Brazil nut structure, fruit fate and/or overall forest structure? We installed four 9-ha plots in each site to census Brazil nut trees > 10 cm dbh, and within each plot, 36 subplots (25 × 25 m each) to quantify regeneration, overall forest structure, and open and closed fruit counts. Approximately 29-55% of fruits was unharvested, and more than 90% of these was opened by scatterhoarding dispersers. Population structure approximated a reverse-J size class distribution, with seedling densities varying from 3.2 to 5.8 individuals ha-1. We conclude that within the current harvest context, regeneration is sufficient for population persistence in our sites, at least over the medium term. The socioeconomics of sustainably managing Brazil nut is the greater challenge, involving interlinked competitive land uses, nut quality, and substantial increases in local income from harvest. Some of these challenges are being addressed in Brazil, Bolivia and Peru, providing hope that this cornerstone extractive species will continue to play a prominent role in the ecological and economic landscape of Amazonia.
650 $aBrazil nuts
650 $aNatural regeneration
650 $aNontimber forest products
650 $aSustainable forestry
650 $aBertholletia excelsa
650 $aCastanha do pará
650 $aRegeneração natural
653 $aCastanha do brasil
653 $aExtractive reserve
653 $aManejo florestal
653 $aNuez del Brasil
653 $aProductos forestales no madereros
653 $aProduto florestal não madeireiro (PFNM)
653 $aRegeneración natural
653 $aReserva extractiva
653 $aReserva extrativista
653 $aSilvicultura sustentable
700 1 $aKAINER, K. A.
700 1 $aSTAUDHAMMER, C. L.
700 1 $aSERRANO, R. O. P.
773 $tBiological Conservation$gv. 141, n. 1, p. 332-346, Jan. 2008.
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Registro original: |
Embrapa Acre (CPAF-AC) |
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| Registros recuperados : 7 | |
| 2. |  | CANTO, M. W. do; JOBIM, C. C.; GASPARINO, E.; HOESCHI, A. R. Características do pasto e acúmulo de forragem em capim-tanzânia submetido a alturas de manejo do pasto. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 43, n. 3, p. 429-435, mar. 2008 Título em inglês: Sward characteristics and herbage accumulation of Tanzania grass submitted to sward heights.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 3. | | JOBIM, C. C.; REIS, R. A.; RODRIGUES, L. R. de A.; SCHOCKEN-ITURRINO, R.P. Presença de microrganismos na silagem de grãos úmidos de milho ensilado com diferentes proporções de sabugo. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 32, n. 2, p. 201-204, fev. 1997. Título em inglês: Microorganisms in the high-moisture corn grain silage with different proportions of the cob.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 4. | | JOBIM, C. C.; LOMBARDI, L.; MACEDO, F. A. F. de; BRANCO, A. F. Silagens de grãos de milho puro e com adição de grãos de soja, de girassol ou uréia. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 43, n. 5, p. 649-656, maio 2008 Título em inglês: Quality of corn grain silage added with soybean, sunflower or urea.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 5. | | ALCALDE, C. R.; GARCIA, J.; EUCLIDES, V. P. B.; MEDEIROS, S. R. de; ZAMBOM, M. A.; JOBIM, C. C. Suplementação para novilhos em pastagens de "Brachiaria decumbens" no período da seca: cinética de degradação da forragem. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 43., 2006, João Pessoa. Produção animal em biomas tropicais: anais. João Pessoa: Sociedade Brasileira de Zootecnia: UFPB, 2006. 4 p. 1 CD-ROM. CNPGC.| Biblioteca(s): Embrapa Gado de Corte. |
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| 6. | | MODESTO, E. C.; SANTOS, G. T. dos; VIDIGAL FILHO, P. S.; ZAMBOM, M. A.; VILELA, D.; JOBIM, C. C.; FARIA, K. P.; DETMANN, E. Composição química das folhas de cinco cultivares de mandioca (Manihot esculenta Crantz.) em diferentes épocas de colheita. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 38., 2001, Piracicaba. A produção animal na visão dos brasileiros: anais. Piracicaba: Sociedade Brasileira de Zootecnia, 2001.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 7. | | ITAVO, L. C. V.; KOZERSKI, N. D.; ITAVO, C. C. B. F.; DIAS, A. M.; PETIT, H. V.; BENCHAAR, C.; VOLTOLINI, T. V.; JOBIM, C. C.; SANTOS, G. T. dos. Orange juice industry by-product silage can increase fat and protein in Holstein cows milk. Journal of Dairy Reserach, v. 87, p. 400-405, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Semiárido. |
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| Registros recuperados : 7 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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