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Resolving systematic errors in estimates of net ecosystem exchange of CO2 and ecosystem respiration in a tropical forest biome
(Elsevier, 2008)
The controls on uptake and release of CO<sub>2</sub> by tropical rainforests, and the responses to a changing climate, are major uncertainties in global climate change models. Eddy-covariance measurements potentially provide ...
Seasonal Controls on the Exchange of Carbon and Water in an Amazonian Rain Forest
(American Geophysical Union, 2007)
The long-term resilience of Amazonian forests to climate changes and the fate of their large stores of organic carbon depend on the ecosystem response to climate and weather. This study presents 4 years of eddy covariance ...
High sensitivity of peat decomposition to climate change through water-table feedback
(Nature Publishing Group, 2008)
Historically, northern peatlands have functioned as a carbon sink, sequestering large amounts of soil organic carbon, mainly due to low decomposition in cold, largely waterlogged soils. The water table, an essential ...
Large Spinose Microfossils in Ediacaran Rocks as Resting Stages of Early Animals
(National Academy of Sciences, 2009)
Large (> 100 mu m), profusely ornamented microfossils comprise a distinctive paleontological component of sedimentary rocks deposited during the Ediacaran Period (635-542 million years ago). Smaller spinose fossils in ...
Estimation of Net Ecosystem Carbon Exchange for the Conterminous United States by Combining MODIS and AmeriFlux Data
(Elsevier, 2008)
Eddy covariance flux towers provide continuous measurements of net ecosystem carbon exchange (NEE) for a wide range of climate and biome types. However, these measurements only represent the carbon fluxes at the scale of ...
Patterns of Water and Heat Flux Across a Biome Gradient From Tropical Forest to Savanna in Brazil
(American Geophysical Union, 2009)
We investigated the seasonal patterns of water vapor and sensible heat flux along a tropical biome gradient from forest to savanna. We analyzed data from a network of flux towers in Brazil that were operated within the ...
The Pattern and Timing of Biotic Recovery from the End-Permian Extinction on the Great Bank of Guizhou, Guizhou Province, China
(Society for Sedimentary Geology, 2006)
Microfacies analysis and point Counts of thin sections from 608 hand samples were used to track changes in the abundance and diversity of fossil grains through the extended recovery interval following end-Permian mass ...
Environmental and Biological Controls on the Initiation and Growth of a Middle Triassic (Anisian) Reef Complex on the Great Bank of Guizhou, Guizhou Province, China
(SEPM (Society for Sedimentary Geology), 2006)
The Great Bank of Guizhou (GBG) is an isolated Late Permian to Late Triassic carbonate platform in the Nanpanjiang Basin of Guizhou Province, southwest China. A faulted syncline exposes a cross section of the platform ...
Evolutionary Trajectories and Biogeochemical Impacts of Marine Eukaryotic Phytoplankton
(Annual Reviews, Inc., 2004)
The evolutionary succession of marine photoautotrophs began with the origin of photosynthesis in the Archean Eon, perhaps as early as 3.8 billion years ago. Since that time, Earth's atmosphere, continents, and oceans have ...
Reinforcement versus Fluidization in Cytoskeletal Mechanoresponsiveness
(Public Library of Science, 2009)
Every adherent eukaryotic cell exerts appreciable traction forces upon its substrate. Moreover, every resident cell within the heart, great vessels, bladder, gut or lung routinely experiences large periodic stretches. As ...