@Article{McGlueSZCPACAETKGR:2012:LaReHo,
author = "McGlue, Michael M. and Silva, Aguinaldo and Zani, Hiran and
Corradini, Fabr{\'{\i}}cio A. and Parolin, Mauro and Abel, Erin
and Cohen, Andrew S. and Assine, Mario Luis and Ellis, Geoffrey S.
and Trees, Mark A. and Kuerten, Sidney and Gradella, Frederico dos
Santos and Rasbold, Giliane Gessica",
affiliation = "{} and {} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Lacustrine records of holocene flood pulse dynamics in the upper
Paraguay River watershed (Pantanal wetlands, Brazil)",
journal = "Quaternary Research",
year = "2012",
volume = "78",
number = "2",
pages = "285--294",
keywords = "Pantanal wetlands, floodplain lakes, flood pulse, paleolimnology,
upper Paraguay river.",
abstract = "The Pantanal is the world's largest tropical wetland and a
biodiversity hotspot, yet its response to Quaternary environmental
change is unclear. To address this problem, sediment cores from
shallow lakes connected to the Upper Paraguay River (PR) were
analyzed and radiocarbon dated to track changes in sedimentary
environments. Stratal relations, detrital particle size, multiple
biogeochemical indicators, and sponge spicules suggest fluctuating
lake-level lowstand conditions between ~11,000 and 5300 cal yr BP,
punctuated by sporadic and in some cases erosive flood flows. A
hiatus has been recorded from ~5300 to 2600 cal yr BP, spurred by
confinement of the PR within its channel during an episode of
profound regional drought. Sustained PR flooding caused a
transgression after ~2600 cal yr BP, with lake-level highstand
conditions appearing during the Little Ice Age. Holocene PR flood
pulse dynamics are best explained by variability in effective
precipitation, likely driven by insolation and tropical
sea-surface temperature gradients. Our results provide novel
support for hypotheses on: (1) stratigraphic discontinuity of
floodplain sedimentary archives; (2) late Holocene methane flux
from Southern Hemisphere wetlands; and (3) pre-colonial indigenous
ceramics traditions in western Brazil.",
doi = "10.1016/j.yqres.2012.05.015",
url = "http://dx.doi.org/10.1016/j.yqres.2012.05.015",
issn = "0033-5894",
label = "lattes: 3368934680028882 3 SilvaZCPACATKGR:2012:LaReHo",
language = "pt",
urlaccessdate = "30 abr. 2024"
}