Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1119312
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dc.contributor.authorDANTAS, A. R.eng
dc.contributor.authorPIEDADE, M. T. F.eng
dc.contributor.authorGUEDES, M. C.eng
dc.contributor.authorLIRA-GUEDES, A. C.eng
dc.date.accessioned2020-01-24T18:16:57Z-
dc.date.available2020-01-24T18:16:57Z-
dc.date.created2020-01-24
dc.date.issued2019
dc.identifier.citationPesquisa Florestal Brasileira, v. 39, e201902043, p. 328, 2019. Edição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba.eng
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1119312-
dc.descriptionThe 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.eng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titlePopulation structure of Pentaclethra macroloba (Willd.) Kuntze in high and low floodplains of the Amazonian estuary.eng
dc.typeResumo em anais e proceedingseng
dc.date.updated2020-01-27T11:11:11Z
dc.subject.thesagroPracaxieng
dc.subject.thesagroDinâmica Populacionaleng
riaa.ainfo.id1119312eng
riaa.ainfo.lastupdate2020-01-27 -02:00:00
dc.contributor.institutionADELSON ROCHA DANTAS, PPG EM ECOLOGIA, INPA; MARIA TERESA FERNANDEZ PIEDADE, INPA; MARCELINO CARNEIRO GUEDES, CPAF-AP; ANA CLAUDIA LIRA GUEDES, CPAF-AP.eng
Appears in Collections:Resumo em anais de congresso (CPAF-AP)

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