Impact of sea-level and climatic changes on the Amazon coastal wetlands during the late Holocene

Cohen, Marcelo Cancela Lisboa; Behling, Hermann; Lara, Rubén; Smith, Clarisse Beltrão; Matos, Hellen Rosy Soares; Vedel, Vincent

doi:10.1007/s00334-008-0208-0

Cited by 52 publications

(56 citation statements)

References 54 publications

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“…Although the rates are nonlinear between the dated points, they are same magnitude order with the vertical accretion range of 0.1 to 10 mm/yr of mangrove forests reported by other authors (e.g. Behling et al, 2004;Bird, 1980;Cahoon and Lynch, 1997;Cohen et al, 2005aCohen et al, , 2008Cohen et al, , 2009Guimarães et al, 2010;Spenceley, 1982;Vedel et al, 2006).…”

Section: Radiocarbon Date and Sedimentation Ratesmentioning

confidence: 67%

“…This shift is attributed to climate, river discharge and RSL changes (Behling et al, 2004;Cohen et al, 2005aCohen et al, , 2008Cohen et al, , 2009França et al, 2012;Lara and Cohen, 2009;Smith et al, 2011Smith et al, , 2012. However, in southeastern Brazil, the mangrove dynamics are mainly related to RSL changes (Buso Junior, 2010;Buso Junior et al, in press) and sediment transport (Amaral et al, 2006).…”

Section: Introductionmentioning

confidence: 94%

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Mangrove vegetation changes on Holocene terraces of the Doce River, southeastern Brazil

França

Cohen

Pessenda³

et al. 2013

CATENA

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Section: Radiocarbon Date and Sedimentation Ratesmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 94%

Mangrove vegetation changes on Holocene terraces of the Doce River, southeastern Brazil

França

Cohen

Pessenda³

et al. 2013

CATENA

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“…This century-scale ocean-atmosphere coupling was characterized by an intensification of the SASM and increased precipitation in tropical South America, (Vimeux et al, 2009;Bird et al, 2011) and particularly a wetter Amazon Basin (Cohen et al, 2009;Vuille et al, 2012) and the presence of increased moisture along the eastern Cordillera in northern South America, reaching at least as far south as southern Peru (Reuter et al, 2009;Bird et al, 2011). Between 1550 and 1650 AD, the combined effect of a stronger SASM and low ENSO variability (Fig.…”

Section: The Little Ice Agementioning

confidence: 97%

“…1). These conditions led to a northern migration of the ITCZ and a weakened SASM, and resulted in decreased rainfall in the Amazon Basin during the wet season (DJF) (Cohen et al, 2009;Reuter et al, 2009). Our results show that at the elevation of Papallacta, the lack of moisture induced by a weakened SASM was probably counterbalanced by moisture transport induced by high ENSO variability.…”

Section: The Medieval Climate Anomalymentioning

confidence: 99%

The Medieval Climate Anomaly and the Little Ice Age in the eastern Ecuadorian Andes

et al. 2013

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To better characterize the climate variability of the last millennium in the high Andes, we analyzed the pollen content of a 1150-yr-old sediment core collected in a bog located at 3800 m a.s.l. in the páramo in the eastern Cordillera in Ecuador. An upslope convective index based on the ratio between cloud transported pollen from the Andean forest to the bog (T) and Poaceae pollen frequencies, related to the edaphic moisture of the páramo (P), was defined. This index was used to distinguish changes in the atmospheric moisture from the soil moisture content of the páramo and their associated patterns of interdecadal El Niño–Southern Oscillation (ENSO) variability and South American summer monsoon (SASM) activity. Results show that between 850 and 1250 AD, the Medieval Climate Anomaly interval was warm and moist with a high transported pollen/Poaceae pollen (T/P) index linked to high ENSO variability and weak SASM activity. Between 1250 and 1550 AD, a dry climate prevailed, characterized by an abrupt decrease in the T/P index and therefore no upslope cloud convection, related to lower ENSO variability and with significant impact on the floristic composition of the páramo. During the Little Ice Age, two phases were observed: first, a wet phase between 1550 and 1750 AD linked to low ENSO variability in the Pacific and warm south equatorial Atlantic sea surface temperatures (SSTs) favored the return of a wet páramo, and then a cold and dry phase between 1750 and 1800 AD associated with low ENSO variability and weak SASM activity resulted in drying of the páramo. The current warm period marks the beginning of a climate characterized by high convective activity – the highest in the last millennium – and weaker SASM activity modifying the water storage of the páramo. Our results show that the páramo is progressively losing its capacity for water storage and that the interdecadal variability of both tropical Pacific and Atlantic SSTs matter for Andean climate patterns, although many teleconnection mechanisms are still poorly understood

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“…Although the rates are nonlinear between the dated layers, they are the same magnitude order with the vertical accretion range of 0.1 to 10 mm yr − 1 of mangrove forests reported by other authors (e.g. Cahoon and Lynch, 1997;Bird, 1980;Spenceley, 1982;Behling et al, 2004;Cohen et al, 2005aCohen et al, , 2008Cohen et al, , 2009Guimarães et al, 2010;Vedel et al, 2006).…”

Section: Radiocarbon Date and Sedimentation Ratesmentioning

confidence: 61%

Relative sea-level and climatic changes in the Amazon littoral during the last 500 years

Cohen

Alves

França

et al. 2015

CATENA

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Impact of sea-level and climatic changes on the Amazon coastal wetlands during the late Holocene

Cited by 52 publications

References 54 publications

Mangrove vegetation changes on Holocene terraces of the Doce River, southeastern Brazil

Mangrove vegetation changes on Holocene terraces of the Doce River, southeastern Brazil

The Medieval Climate Anomaly and the Little Ice Age in the eastern Ecuadorian Andes

Relative sea-level and climatic changes in the Amazon littoral during the last 500 years

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