Effect of climate and flooding on the phenology of Attalea phalerata (Arecaceae) in a white-water floodplain forest of the Amazon River

Rafael Neri Furtado; Marcelino Carneiro Guedes; Adelson Rocha DantasAna Claudia Lira-GuedesJose Julio de Toledo

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Effect of climate and flooding on the phenology of Attalea phalerata (Arecaceae) in a white-water floodplain forest of the Amazon River

机译：Effect of climate and flooding on the phenology of Attalea phalerata (Arecaceae) in a white-water floodplain forest of the Amazon River

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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.

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《Ecological research》 |2023年第4期|593-603|共11页
作者
Rafael Neri Furtado; Marcelino Carneiro Guedes; Adelson Rocha DantasAna Claudia Lira-GuedesJose Julio de Toledo;
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作者单位

Programa de Pos-Graduacao em Ciencias Ambientais, Universidade Federal do Amapa, 68903-419 Macapa, Amapa, Brazil;

Programa de Pos-Graduacao em Ciencias Ambientais, Universidade Federal do Amapa, 68903-419 Macapa, Amapa, Brazil, Departamento de Recursos Florestais, Empresa Brasileira de Pesquisa Agropecuaria, Embrapa Amapa, 68903-419 Macapa, Amapa, Brazil;

Departamento de Recursos Florestais, Empresa Brasileira de Pesquisa Agropecuaria, Embrapa Amapa, 68903-419 Macapa, Amapa, BrazilPrograma de Pos-Graduacao em Ciencias Ambientais, Universidade Federal do Amapa, 68903-419 Macapa, Amapa, Brazil, Laboratorio de Ecologia, Universidade Federal do Amapa, 68903-419 Macapa, Amapa, Brazil;

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Amazon River; fruit production; leaf investment; plant size; rainfall;

Effect of climate and flooding on the phenology of Attalea phalerata (Arecaceae) in a white-water floodplain forest of the Amazon River

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