Tree stems from wetland, floodplain and upland forests can produce and emit methane ( CH
4 ). Tree CH 4 stem emissions have high spatial and temporal variability, but there is no …

Tropical forests may be vulnerable to climate change 1 , 2 – 3 if photosynthetic carbon uptake
currently operates near a high temperature limit 4 , 5 – 6 . Predicting tropical forest function …

Severe droughts endanger ecosystem functioning worldwide. We investigated how drought
affects carbon and water fluxes as well as soil-plant-atmosphere interactions by tracing 13 …

A statistically rigorous approach for determining likely errors on estimates of mass and
volume change in metasomatic systems is presented and then used to assess mass transfer …

Amazon forests are potentially globally significant sources or sinks for atmospheric carbon
dioxide. In this study, we characterize the spatial trends in carbon storage and fluxes in both …

Recent field observations indicate that in many forest ecosystems, plants use water that may
be isotopically distinct from soil water that ultimately contributes to streamflow. Such an …

Nutrient accumulation as fertile islands beneath invasive trees and shrubs in grasslands
may provide opportunities for carbon sequestration. In a southwestern USA grassland, our …

Marine ecologists have a wide array of tools with which to study complex and dynamic
systems, but there are cases where neither simple, highly controlled experiments nor largely …

The Tapajós National Forest (FLONA Tapajós) has 600,000 hectares of protected forest,
and is situated 50 km south of the city of Santarém, Pará, Brazil, a port city of 250,000 …

As part of a study of the roles of the sensory subsystem devoted to CO 2 in the nectar-feeding
moth Manduca sexta, we investigated CO 2 release and nectar secretion by flowers of …