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Registro Completo |
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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
24/01/2020 |
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Data da última atualização: |
27/01/2020 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
DANTAS, A. R.; PIEDADE, M. T. F.; GUEDES, M. C.; LIRA-GUEDES, A. C. |
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Afiliação: |
ADELSON ROCHA DANTAS, PPG EM ECOLOGIA, INPA; MARIA TERESA FERNANDEZ PIEDADE, INPA; MARCELINO CARNEIRO GUEDES, CPAF-AP; ANA CLAUDIA LIRA GUEDES, CPAF-AP. |
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Título: |
Population structure of Pentaclethra macroloba (Willd.) Kuntze in high and low floodplains of the Amazonian estuary. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Pesquisa Florestal Brasileira, v. 39, e201902043, p. 328, 2019. Edição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba. |
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Idioma: |
Inglês |
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Conteúdo: |
The flood cycle of floodplain forests and topographic variations are important factors of diversification and morphological and ecophysiological adaptations of the plant community. Pentaclethra macroloba is a hyperdominant species adapted to flood variations. The objective of this study was to characterize the P. macroloba population structure between environments with high topography, flooded only during the rainy season and peak flood of the river, (high várzea-HV) and low topography with daily flood (low várzea-LV). The study was carried in the Mazagão Experimental Field, Brazil. Four plots of 1 ha were installed in each environment. All individuals with DBH ≥ 5 cm were measured and georeferenced. ANOVA test, 0.05% probability, was applied to verify the structural differences between two environments. The HV had higher population density (51.2 individuals.ha-1) compared to the LV (36.7 individuals.ha-1), although without significance. Basal area was higher in the HV (10.42 m²) in comparison with LV (5.90 m²), with significant difference (F = 7.13, p = 0.00795). The maximum DAP of HV was 67 cm with mean of 24 cm. The LV presented maximum DBH of 42 cm with mean of 21 cm, showing structural difference between the two environments (F = 6.22, p = 0.0131). The aggregation index showed high aggregation in the LV (R = 0.89) than in the HV (R = 0.79), differing significantly between the two environments (F = 11.31, p = 0.0008). Frequency and time of flooding are ecological drives that structure the population of pracaxizeiro causing morphological and ecophysiological adaptations to the individual. MenosThe flood cycle of floodplain forests and topographic variations are important factors of diversification and morphological and ecophysiological adaptations of the plant community. Pentaclethra macroloba is a hyperdominant species adapted to flood variations. The objective of this study was to characterize the P. macroloba population structure between environments with high topography, flooded only during the rainy season and peak flood of the river, (high várzea-HV) and low topography with daily flood (low várzea-LV). The study was carried in the Mazagão Experimental Field, Brazil. Four plots of 1 ha were installed in each environment. All individuals with DBH ≥ 5 cm were measured and georeferenced. ANOVA test, 0.05% probability, was applied to verify the structural differences between two environments. The HV had higher population density (51.2 individuals.ha-1) compared to the LV (36.7 individuals.ha-1), although without significance. Basal area was higher in the HV (10.42 m²) in comparison with LV (5.90 m²), with significant difference (F = 7.13, p = 0.00795). The maximum DAP of HV was 67 cm with mean of 24 cm. The LV presented maximum DBH of 42 cm with mean of 21 cm, showing structural difference between the two environments (F = 6.22, p = 0.0131). The aggregation index showed high aggregation in the LV (R = 0.89) than in the HV (R = 0.79), differing significantly between the two environments (F = 11.31, p = 0.0008). Frequency and time of flooding are ecological d... Mostrar Tudo |
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Thesagro: |
Dinâmica Populacional; Pracaxi. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/209566/1/CPAF-AP-2019-Population-structure-Pentaclethra-macroloba.pdf
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Marc: |
LEADER 02278nam a2200169 a 4500
001 2119312
005 2020-01-27
008 2019 bl uuuu u00u1 u #d
100 1 $aDANTAS, A. R.
245 $aPopulation structure of Pentaclethra macroloba (Willd.) Kuntze in high and low floodplains of the Amazonian estuary.$h[electronic resource]
260 $aPesquisa Florestal Brasileira, v. 39, e201902043, p. 328, 2019. Edição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba.$c2019
520 $aThe flood cycle of floodplain forests and topographic variations are important factors of diversification and morphological and ecophysiological adaptations of the plant community. Pentaclethra macroloba is a hyperdominant species adapted to flood variations. The objective of this study was to characterize the P. macroloba population structure between environments with high topography, flooded only during the rainy season and peak flood of the river, (high várzea-HV) and low topography with daily flood (low várzea-LV). The study was carried in the Mazagão Experimental Field, Brazil. Four plots of 1 ha were installed in each environment. All individuals with DBH ≥ 5 cm were measured and georeferenced. ANOVA test, 0.05% probability, was applied to verify the structural differences between two environments. The HV had higher population density (51.2 individuals.ha-1) compared to the LV (36.7 individuals.ha-1), although without significance. Basal area was higher in the HV (10.42 m²) in comparison with LV (5.90 m²), with significant difference (F = 7.13, p = 0.00795). The maximum DAP of HV was 67 cm with mean of 24 cm. The LV presented maximum DBH of 42 cm with mean of 21 cm, showing structural difference between the two environments (F = 6.22, p = 0.0131). The aggregation index showed high aggregation in the LV (R = 0.89) than in the HV (R = 0.79), differing significantly between the two environments (F = 11.31, p = 0.0008). Frequency and time of flooding are ecological drives that structure the population of pracaxizeiro causing morphological and ecophysiological adaptations to the individual.
650 $aDinâmica Populacional
650 $aPracaxi
700 1 $aPIEDADE, M. T. F.
700 1 $aGUEDES, M. C.
700 1 $aLIRA-GUEDES, A. C.
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Registro original: |
Embrapa Amapá (CPAF-AP) |
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| Registros recuperados : 318 | |
| 81. |  | WADT, L. H. de O.; MAROCCOLO, J. F.; GUEDES, M. C.; SILVA, K. E. da. Histórico da descrição botânica e características gerais. In: WADT, L. H. de O.; MAROCCOLO, J. F.; GUEDES, M. C.; SILVA, K. E. da (ed.). Castanha-da-amazônia: estudos sobre a espécie e sua cadeia de valor. Brasília, DF: Embrapa, 2023. cap. 1, p. 21-32. V. 1: Aspectos sociais, econômicos e organizacionais. ODS 2, ODS 3, ODS 8, ODS 11, ODS 12, ODS 13, ODS 17.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Rondônia. |
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| 84. | | PICANÇO. A. E. de L.; NEVES, E. de S.; EULER, A. M. C.; GUEDES, M. C. Estrutura populacional, produção e biometria de frutos e sementes de Castanha-do-brasil (Berthollétia excelsa Bonpl.) na RESEX Rio Cajarí no sul do Estado do Amapá. In: CONGRESSO AMAPAENSE DE INICIAÇÃO CIENTÍFICA, 1.; MOSTRA DE TCC's, 5.; EXPOSIÇÃO DE PESQUISA CIENTÍFICA, 1., Macapá, 2010. Livro de resumos... Macapá: SETEC; Embrapa Amapá; UEAP, 2010. p. 45. Resumo simples.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amapá. |
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| 85. | | KOORNDIJK, M.; SILVA JÚNIOR, J. N. N.; KROSS, R.; LIRA-GUEDES, A. C.; GUEDES, M. C. Estrutura de populações de andirobeiras em floresta de várzea de Apura, Suriname e Amapá, Brasil. In: JORNADA CIENTÍFICA DA EMBRAPA AMAPÁ, 2., 2016, Macapá. Resumos... Macapá: Embrapa Amapá, 2016. p. 49.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amapá. |
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| 88. | | LEMOS, L. M. de; GUEDES, M. C.; COSTA, J. B. P.; NEVES, E. de S. Estudo da regeneração natural de Bertholhetia excelsa, Bonpl em castanhais na RESEX Cajari, Sul do Amapá. In: CONGRESSO AMAPAENSE DE INICIAÇÃO CIENTÍFICA, 2.; MOSTRA DE TCC's, 6.; EXPOSIÇÃO DE PESQUISA CIENTÍFICA, 2., 2010, Macapá. Livro de resumos... Macapá: SETEC: Embrapa Amapá: UEAP, 2011. p. 46.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amapá. |
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| 95. | | GUEDES, M. C.; TONINI, H.; WADT, L. H. de O.; SILVA, K. E. da. Instalação e medição de parcelas permanentes para estudos com produtos florestais não madeireiros. In: WADT, L. H. de O.; SANTOS, L. M. H.; BENTES, M. P. de M.; OLIVEIRA, V. B. V. (Ed.). Produtos florestais não madeireiros: guia metodológico da Rede Kamukaia. Brasília, DF: Embrapa, 2017. p. 13-32.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Agrossilvipastoril; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Rondônia. |
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| Registros recuperados : 318 | |
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