Now showing items 361-370 of 913
Conversion to soy on the Amazonian agricultural frontier increases streamflow without affecting stormflow dynamics
Large-scale soy agriculture in the southern Brazilian Amazon now rivals deforestation for pasture as the region’s predominant form of land use change. Such landscape level change can have substantial consequences for ...
Net exchanges of CO2, CH4, and N2O between China's terrestrial ecosystems and the atmosphere and their contributions to global climate warming
(American Geophysical Union, 2011-05-13)
China's terrestrial ecosystems have been recognized as an atmospheric CO2 sink; however, it is uncertain whether this sink can alleviate global warming given the fluxes of CH4 and N2O. In this study, we used a process-based ...
Spatial patterns of bacterial richness and evenness in the NW Mediterranean Sea explored by pyrosequencing of the 16S rRNA
Due to analytical limitations, patterns of richness and evenness of microbes are scarce in the current literature. The newest and powerful pyrosequencing technology may solve this issue by sampling thousands of sequences ...
Pseudo-nitzschia physiological ecology, phylogeny, toxicity, monitoring and impacts on ecosystem health
(Elsevier B.V., 2011-11-03)
Over the last decade, our understanding of the environmental controls on Pseudo-nitzschia blooms and domoic acid (DA) production has matured. Pseudo-nitzschia have been found along most of the world's coastlines, while the ...
Plankton reach new heights in effort to avoid predators
The marine environment associated with the air-water interface (neuston) provides an important food source to pelagic organisms where subsurface prey is limited. However, studies on predator-prey interactions within this ...
Understanding calcium waves and sparks in central neurons
All cells use changes in intracellular calcium concentration [Ca2+]i to regulate cell signaling events In neurons, with their elaborate dendritic and axonal arborizations, there are clear examples of both localized and ...
Building research networks to support campus programs [poster]
This poster focuses on the methods, tools and outcomes involved in creating two targeted research networks to support large, long-running research programs in the Woods Hole scientific community.
Adaptive evolution of voltage-gated sodium channels : the first 800 million years
Voltage-gated Na+-permeable (Nav) channels form the basis for electrical excitability in animals. Nav channels evolved from Ca2+ channels and were present in the common ancestor of choanoflagellates and animals although ...
Acoustic detection and quantification of benthic egg beds of the squid Loligo opalescens in Monterey Bay, California
(Acoustical Society of America, 2006-02)
The squid Loligo opalescens is a key species in the nearshore pelagic community of California, supporting the most valuable state marine fishery, yet the stock biomass is unknown. In southern Monterey Bay, extensive beds ...
Recent changes in nitrate and dissolved organic carbon export from the upper Kuparuk River, North Slope, Alaska
(American Geophysical Union, 2007-11-08)
Export of nitrate and dissolved organic carbon (DOC) from the upper Kuparuk River between the late 1970s and early 2000s was evaluated using long-term ecological research (LTER) data in combination with solute flux and ...