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Registro Completo |
Biblioteca(s): |
Embrapa Amapá. |
Data corrente: |
07/11/2023 |
Data da última atualização: |
07/11/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FURTADO, R. N.; GUEDES, M. C.; DANTAS, A. R.; LIRA-GUEDES, A. C.; TOLEDO, J. T. de. |
Afiliação: |
RAFAEL NERI FURTADO, UNIVERSIDADE FEDERAL DO AMAPÁ; MARCELINO CARNEIRO GUEDES, CPAF-AP; ADELSON ROCHA DANTAS; ANA CLAUDIA LIRA GUEDES, CPAF-AP; JOSÉ JÚLIO DE TOLEDO, UNIVERSIDADE FEDERAL DO AMAPÁ. |
Título: |
Effect of climate and flooding on the phenology of Attalea phalerata (Arecaceae) in a white-water floodplain forest of the Amazon River. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Ecological Research, v. 38, n. 4, p. 593-603, 2023. |
DOI: |
https://doi.org/10.1111/1440-1703.12394 |
Idioma: |
Inglês |
Conteúdo: |
Little is known about the effect of the polymodal tide of the Amazon estuary on the phenology of palms. We evaluated the effect of climate/flood and biotic factors on the phenology of 80 Attalea phalerata palms over 1-year period. Bract emission and young leaves percentage were negatively correlated to accumulated rainfall. Inflorescence and leaf production occurred mainly in the dry season. Immature fruit was positively correlated with rainfall, showing that fruit development occurs during the rainy season. The production of flowers, unripe fruit, and young leaves were positively correlated to flooding. The production of infructescence, per palm, varied from 0 to 4 and 18% of the variance was explained by variables of stem diameter, number of new leaves, altitude, and flood amplitude. The number of infructescence increased for large palms and decreased for individuals subjected to high amplitudes of flooding. These findings reveal that phenological patterns of A. phalerata are driven by seasonal variation in rainfall and flooding. Furthermore, infructescence production can be predicted by plant size and this production is sensitive to variations in flood amplitude. Alteration in rainfall and flooding due to climate change may have a negative impact on fruit production if extreme events increase in frequency. |
Palavras-Chave: |
Fruit production; Leaf investment; Plant size; Rainfall. |
Thesagro: |
Clima; Fenologia; Floresta; Várzea. |
Thesaurus Nal: |
Attalea phalerata. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
Marc: |
LEADER 02202naa a2200289 a 4500 001 2157904 005 2023-11-07 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1111/1440-1703.12394$2DOI 100 1 $aFURTADO, R. N. 245 $aEffect of climate and flooding on the phenology of Attalea phalerata (Arecaceae) in a white-water floodplain forest of the Amazon River.$h[electronic resource] 260 $c2023 520 $aLittle is known about the effect of the polymodal tide of the Amazon estuary on the phenology of palms. We evaluated the effect of climate/flood and biotic factors on the phenology of 80 Attalea phalerata palms over 1-year period. Bract emission and young leaves percentage were negatively correlated to accumulated rainfall. Inflorescence and leaf production occurred mainly in the dry season. Immature fruit was positively correlated with rainfall, showing that fruit development occurs during the rainy season. The production of flowers, unripe fruit, and young leaves were positively correlated to flooding. The production of infructescence, per palm, varied from 0 to 4 and 18% of the variance was explained by variables of stem diameter, number of new leaves, altitude, and flood amplitude. The number of infructescence increased for large palms and decreased for individuals subjected to high amplitudes of flooding. These findings reveal that phenological patterns of A. phalerata are driven by seasonal variation in rainfall and flooding. Furthermore, infructescence production can be predicted by plant size and this production is sensitive to variations in flood amplitude. Alteration in rainfall and flooding due to climate change may have a negative impact on fruit production if extreme events increase in frequency. 650 $aAttalea phalerata 650 $aClima 650 $aFenologia 650 $aFloresta 650 $aVárzea 653 $aFruit production 653 $aLeaf investment 653 $aPlant size 653 $aRainfall 700 1 $aGUEDES, M. C. 700 1 $aDANTAS, A. R. 700 1 $aLIRA-GUEDES, A. C. 700 1 $aTOLEDO, J. T. de 773 $tEcological Research$gv. 38, n. 4, p. 593-603, 2023.
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| Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
08/07/2005 |
Data da última atualização: |
02/12/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - A |
Autoria: |
BAKER, T. R.; PHILLIPS, O. L.; MALHI, Y.; ALMEIDA, S.; ARROYO, L.; DI FIORE, A.; ERWIN, T.; HIGUCHI, N.; KILLEEN, T. J.; LAURENCE, S. G.; LAURENCE, W. F.; LEWIS, S. L.; MONTEAGUDO, A.; NEILL, D. A.; NÚNEZ VARGAS, P.; PITMAN, N. C. A.; SILVA, J. N. M.; VÁSQUEZ MARTÍNEZ, R. |
Afiliação: |
Max-Planck-Institut für Biogeochemie / University of Leeds; University of Leeds; University of Edinburgh; MPEG; Museo Noel Kempff Mercado; New York University; Smithsonian Institution; INPA; Center for Applied Biodiversity Science, Conservation International; Smithsonian Tropical Research Institute; Smithsonian Tropical Research Institute; University of Leeds / University of Edinburgh; Universidad Nacional San Antonio Abad del Cusco / Jardin Botanico de Missouri; Missouri Botanical Garden, c/o Herbario Nacional del Ecuador; Universidad Nacional San Antonio Abad del Cusco; Duke University; JOSÉ NATALINO MACÊDO SILVA, Embrapa Amazônia Oriental; Jardin Botanico de Missouri. |
Título: |
Increasing biomass in Amazonian forest plots. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
Philosophical Transactions of the Royal Society of London. B, v. 359, n. 1443, p. 353-365, Mar. 2004. |
Descrição Física: |
il. |
DOI: |
10.1098/rstb.2003.1422 |
Idioma: |
Inglês |
Conteúdo: |
A previous study by Phillips et al. of changes in the biomass of permanent sample plots in Amazonian forests was used to infer the presence of a regional carbon sink. However, these results generated a vigorous debate about sampling and methodological issues. Therefore we present a new analysis of biomass change in old?growth Amazonian forest plots using updated inventory data. We find that across 59 sites, the above?ground dry biomass in trees that are more than 10 cm in diameter (AGB) has increased since plot establishment by 1.22 ± 0.43 Mg per hectare per year (ha?1 yr?1), where 1 ha = 104 m2), or 0.98 ± 0.38 Mg ha?1 yr?1 if individual plot values are weighted by the number of hectare years of monitoring. This significant increase is neither confounded by spatial or temporal variation in wood specific gravity, nor dependent on the allometric equation used to estimate AGB. The conclusion is also robust to uncertainty about diameter measurements for problematic trees: for 34 plots in western Amazon forests a significant increase in AGB is found even with a conservative assumption of zero growth for all trees where diameter measurements were made using optical methods and/or growth rates needed to be estimated following fieldwork. Overall, our results suggest a slightly greater rate of net stand?level change than was reported by Phillips et al. Considering the spatial and temporal scale of sampling and associated studies showing increases in forest growth and stem turnover, the results presented here suggest that the total biomass of these plots has on average increased and that there has been a regional?scale carbon sink in old?growth Amazonian forests during the previous two decades. MenosA previous study by Phillips et al. of changes in the biomass of permanent sample plots in Amazonian forests was used to infer the presence of a regional carbon sink. However, these results generated a vigorous debate about sampling and methodological issues. Therefore we present a new analysis of biomass change in old?growth Amazonian forest plots using updated inventory data. We find that across 59 sites, the above?ground dry biomass in trees that are more than 10 cm in diameter (AGB) has increased since plot establishment by 1.22 ± 0.43 Mg per hectare per year (ha?1 yr?1), where 1 ha = 104 m2), or 0.98 ± 0.38 Mg ha?1 yr?1 if individual plot values are weighted by the number of hectare years of monitoring. This significant increase is neither confounded by spatial or temporal variation in wood specific gravity, nor dependent on the allometric equation used to estimate AGB. The conclusion is also robust to uncertainty about diameter measurements for problematic trees: for 34 plots in western Amazon forests a significant increase in AGB is found even with a conservative assumption of zero growth for all trees where diameter measurements were made using optical methods and/or growth rates needed to be estimated following fieldwork. Overall, our results suggest a slightly greater rate of net stand?level change than was reported by Phillips et al. Considering the spatial and temporal scale of sampling and associated studies showing increases in forest growth and stem turnover, ... Mostrar Tudo |
Thesagro: |
Biomassa; Carbono; Floresta Tropical. |
Thesaurus NAL: |
Amazonia. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02798naa a2200397 a 4500 001 1406997 005 2022-12-02 008 2004 bl uuuu u00u1 u #d 024 7 $a10.1098/rstb.2003.1422$2DOI 100 1 $aBAKER, T. R. 245 $aIncreasing biomass in Amazonian forest plots.$h[electronic resource] 260 $c2004 300 $cil. 520 $aA previous study by Phillips et al. of changes in the biomass of permanent sample plots in Amazonian forests was used to infer the presence of a regional carbon sink. However, these results generated a vigorous debate about sampling and methodological issues. Therefore we present a new analysis of biomass change in old?growth Amazonian forest plots using updated inventory data. We find that across 59 sites, the above?ground dry biomass in trees that are more than 10 cm in diameter (AGB) has increased since plot establishment by 1.22 ± 0.43 Mg per hectare per year (ha?1 yr?1), where 1 ha = 104 m2), or 0.98 ± 0.38 Mg ha?1 yr?1 if individual plot values are weighted by the number of hectare years of monitoring. This significant increase is neither confounded by spatial or temporal variation in wood specific gravity, nor dependent on the allometric equation used to estimate AGB. The conclusion is also robust to uncertainty about diameter measurements for problematic trees: for 34 plots in western Amazon forests a significant increase in AGB is found even with a conservative assumption of zero growth for all trees where diameter measurements were made using optical methods and/or growth rates needed to be estimated following fieldwork. Overall, our results suggest a slightly greater rate of net stand?level change than was reported by Phillips et al. Considering the spatial and temporal scale of sampling and associated studies showing increases in forest growth and stem turnover, the results presented here suggest that the total biomass of these plots has on average increased and that there has been a regional?scale carbon sink in old?growth Amazonian forests during the previous two decades. 650 $aAmazonia 650 $aBiomassa 650 $aCarbono 650 $aFloresta Tropical 700 1 $aPHILLIPS, O. L. 700 1 $aMALHI, Y. 700 1 $aALMEIDA, S. 700 1 $aARROYO, L. 700 1 $aDI FIORE, A. 700 1 $aERWIN, T. 700 1 $aHIGUCHI, N. 700 1 $aKILLEEN, T. J. 700 1 $aLAURENCE, S. G. 700 1 $aLAURENCE, W. F. 700 1 $aLEWIS, S. L. 700 1 $aMONTEAGUDO, A. 700 1 $aNEILL, D. A. 700 1 $aNÚNEZ VARGAS, P. 700 1 $aPITMAN, N. C. A. 700 1 $aSILVA, J. N. M. 700 1 $aVÁSQUEZ MARTÍNEZ, R. 773 $tPhilosophical Transactions of the Royal Society of London. B$gv. 359, n. 1443, p. 353-365, Mar. 2004.
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