Now showing items 1-10 of 298
A metagenomic assessment of winter and summer bacterioplankton from Antarctica Peninsula coastal surface waters
(Nature Publishing Group, 2012-04-26)
Antarctic surface oceans are well-studied during summer when irradiance levels are high, sea ice is melting and primary productivity is at a maximum. Coincident with this timing, the bacterioplankton respond with significant ...
Fiddler on the roof : a northern range extension for the marsh fiddler crab Uca pugnax
A northern range extension is presented here for the marsh fiddler crab Uca pugnax. In summer 2014, adult crabs were found as far north as Hampton, New Hampshire (42.924428, -70.820517), which is 80 km north of its previously ...
Species compositional differences on different-aged glacial landscapes drive contrasting responses of tundra to nutrient addition
In the northern foothills of the Brooks Range, Alaska, moist non-acidic tundra dominates more recently deglaciated upland landscapes, whereas moist acidic tundra dominates older upland landscapes. In previous studies, ...
The savory swimmer swims north : a northern range extension of the blue crab Callinectes sapidus?
Worldwide, climate-change is shifting species distributions poleward. Here I present recent (2012-2014) observations of the blue crab, Callinectes sapidus, in the Gulf of Maine (GoM), north of its historical range of Cape ...
SeaBase : a multispecies transcriptomic resource and platform for gene network inference
Marine and aquatic animals are extraordinarily useful as models for identifying mechanisms of development and evolution, regeneration, resistance to cancer, longevity and symbiosis, among many other areas of research. ...
Importance of carbon-nitrogen interactions and ozone on ecosystem hydrology during the 21st century
(American Geophysical Union, 2009-03-18)
There is evidence that increasing CO2 concentrations have reduced evapotranspiration and increased runoff through reductions in stomatal conductance during the twentieth century. While this process will continue to counteract ...
Ecosystem biogeochemistry considered as a distributed metabolic network ordered by maximum entropy production
We examine the application of the maximum entropy production principle for describing ecosystem biogeochemistry. Since ecosystems can be functionally stable despite changes in species composition, we utilize a distributed ...
Information technology and libraries
Does elevated CO2 alter silica uptake in trees?
(Frontiers Media, 2015-01-13)
Human activities have greatly altered global carbon (C) and Nitrogen (N) cycling. In fact, atmospheric concentrations of carbon dioxide (CO2) have increased 40% over the last century and the amount of N cycling in the ...
Contributions of long-term research and time-series observations to marine ecology and biogeochemistry
Time-series observations form a critical element of oceanography. New interdisciplinary efforts launched in the past two decades complement the few earlier, longer-running time series in building a better, though still ...