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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
10/10/2007 |
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Data da última atualização: |
28/07/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KLIMAS, C. A.; KAINER, K. A.; WADT, L. H. de O. |
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Afiliação: |
Christie A. Klimas, University of Florida; Karen A. Kainer, University of Florida; LUCIA HELENA DE OLIVEIRA WADT, CPAF-AC. |
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Título: |
Population structure of Carapa guianensis in two forest types in the southwestern Brazilian Amazon. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Forest Ecology and Management, Amsterdam, n. 250, p. 256-265, 2007. |
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ISSN: |
0378-1127 (impresso) |
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DOI: |
10.1016/j.foreco.2007.05.025. |
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Idioma: |
Inglês |
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Conteúdo: |
Carapa guianensis Aublet. is a tropical tree with strong multiple-use characteristics, and is valued for both the high quality oil extracted from its seeds and as a timber resource. This study compares the population structure of this economically important rainforest tree in two contrasting forest types: occasionally inundated and terra firme forests. Main study objectives were (a) to assess the density, spatial distribution, and size class structure of C. guianensis in these two forest types and (b) to use patterns of abundance, distribution and demographic structure to help infer key demographic stages or ecological variables that merit special focus for management. Four 400 m × 400 m plots, two in each forest type, were established to determine distribution and density patterns of C. guianensis ?10 cm diameter at breast height (dbh) at the landscape level, and 32 10 m × 10 m subplots were randomly nested within each of the larger plots to measure individuals <10 cm dbh. Larger individuals (>10 cm dbh) were found at higher densities in occasionally inundated forest than in terra firme forest: 25.7 trees ha?1 and 14.6 trees ha?1, respectively. Mean density of C. guianensis individuals <10 cm dbh was also higher in occasionally inundated forests, but variation of regeneration density among the subplots was high. Spatial distribution methods revealed a tendency toward clumping in both forest types, and both had similar size class structures, suggesting that both environments are suitable for C. guianensis. This new finding illustrates the potential for C. guianensis management in terra firme forests. High densities and clumped distributions in both forest types are also indices favorable for sustainable species management. Finally, several ecological variables (tree density and reproductive potential) were sufficiently different between terra firme and occasionally inundated forests to recommend stratification by forest type when conducting further studies on key ecological and management variables of C. guianensis. MenosCarapa guianensis Aublet. is a tropical tree with strong multiple-use characteristics, and is valued for both the high quality oil extracted from its seeds and as a timber resource. This study compares the population structure of this economically important rainforest tree in two contrasting forest types: occasionally inundated and terra firme forests. Main study objectives were (a) to assess the density, spatial distribution, and size class structure of C. guianensis in these two forest types and (b) to use patterns of abundance, distribution and demographic structure to help infer key demographic stages or ecological variables that merit special focus for management. Four 400 m × 400 m plots, two in each forest type, were established to determine distribution and density patterns of C. guianensis ?10 cm diameter at breast height (dbh) at the landscape level, and 32 10 m × 10 m subplots were randomly nested within each of the larger plots to measure individuals <10 cm dbh. Larger individuals (>10 cm dbh) were found at higher densities in occasionally inundated forest than in terra firme forest: 25.7 trees ha?1 and 14.6 trees ha?1, respectively. Mean density of C. guianensis individuals <10 cm dbh was also higher in occasionally inundated forests, but variation of regeneration density among the subplots was high. Spatial distribution methods revealed a tendency toward clumping in both forest types, and both had similar size class structures, suggesting that both environments... Mostrar Tudo |
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Palavras-Chave: |
Carapa guianenis; Distribución espacial; Espécie florestal; Estrutura populacional; Floresta de terra firme; Floresta ocasionalmente inundada; Productos forestales no madereros; Produto florestal não madeireiro (PFNM); Sudoeste da Amazônia brasileira. |
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Thesagro: |
Andiroba; Características Agronômicas; Floresta tropical. |
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Thesaurus Nal: |
Agronomic traits; Nontimber forest products; Spatial distribution. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 03232naa a2200349 a 4500
001 1507220
005 2021-07-28
008 2007 bl uuuu u00u1 u #d
022 $a0378-1127 (impresso)
024 7 $a10.1016/j.foreco.2007.05.025.$2DOI
100 1 $aKLIMAS, C. A.
245 $aPopulation structure of Carapa guianensis in two forest types in the southwestern Brazilian Amazon.$h[electronic resource]
260 $c2007
520 $aCarapa guianensis Aublet. is a tropical tree with strong multiple-use characteristics, and is valued for both the high quality oil extracted from its seeds and as a timber resource. This study compares the population structure of this economically important rainforest tree in two contrasting forest types: occasionally inundated and terra firme forests. Main study objectives were (a) to assess the density, spatial distribution, and size class structure of C. guianensis in these two forest types and (b) to use patterns of abundance, distribution and demographic structure to help infer key demographic stages or ecological variables that merit special focus for management. Four 400 m × 400 m plots, two in each forest type, were established to determine distribution and density patterns of C. guianensis ?10 cm diameter at breast height (dbh) at the landscape level, and 32 10 m × 10 m subplots were randomly nested within each of the larger plots to measure individuals <10 cm dbh. Larger individuals (>10 cm dbh) were found at higher densities in occasionally inundated forest than in terra firme forest: 25.7 trees ha?1 and 14.6 trees ha?1, respectively. Mean density of C. guianensis individuals <10 cm dbh was also higher in occasionally inundated forests, but variation of regeneration density among the subplots was high. Spatial distribution methods revealed a tendency toward clumping in both forest types, and both had similar size class structures, suggesting that both environments are suitable for C. guianensis. This new finding illustrates the potential for C. guianensis management in terra firme forests. High densities and clumped distributions in both forest types are also indices favorable for sustainable species management. Finally, several ecological variables (tree density and reproductive potential) were sufficiently different between terra firme and occasionally inundated forests to recommend stratification by forest type when conducting further studies on key ecological and management variables of C. guianensis.
650 $aAgronomic traits
650 $aNontimber forest products
650 $aSpatial distribution
650 $aAndiroba
650 $aCaracterísticas Agronômicas
650 $aFloresta tropical
653 $aCarapa guianenis
653 $aDistribución espacial
653 $aEspécie florestal
653 $aEstrutura populacional
653 $aFloresta de terra firme
653 $aFloresta ocasionalmente inundada
653 $aProductos forestales no madereros
653 $aProduto florestal não madeireiro (PFNM)
653 $aSudoeste da Amazônia brasileira
700 1 $aKAINER, K. A.
700 1 $aWADT, L. H. de O.
773 $tForest Ecology and Management, Amsterdam$gn. 250, p. 256-265, 2007.
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| 14. |  | ALVARENGA, R. C.; GONTIJO NETO, M. M.; KLUTHCOUSKI, J. O milho na integração lavoura-pecuária. In: CRUZ, J. C.; MAGALHAES, P. C.; PEREIRA FILHO, I. A.; MOREIRA, J. A. A. (Ed.). Milho: o produtor pergunta, a Embrapa responde. Brasília, DF: Embrapa Informação Tecnológica; Sete Lagoas: Embrapa Milho e Sorgo, 2011. cap. 17, p. 269-278. (Coleção 500 perguntas, 500 respostas).| Tipo: Capítulo em Livro Técnico-Científico |
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| 16. | | ALVARENGA, R. C.; BORGHI, E.; GONTIJO NETO, M. M. Integração lavoura-pecuária-floresta. In: PEREIRA FILHO, I. A.; RODRIGUES, J. A. S. (Ed.). Sorgo: o produtor pergunta, a Embrapa responde. Brasília, DF: Embrapa, 2015. cap. 16, p. 267-279. (Coleção 500 perguntas, 500 respostas).| Tipo: Capítulo em Livro Técnico-Científico |
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