Results 101 to 110 of about 107,478 (303)

Coupling the PLANKTOM5.0 marine ecosystem model to the OCCAM 1º ocean general circulation model for investigation of the sensitivity of global biogeochemical cycles to variations in ecosystem complexity and physical environment [PDF]

, 2008
The earliest marine ecosystem models consisted of a simple representation of the main features of marine ecosystems, including, typically, variables for phytoplankton, zooplankton, nutrient and detritus (NPZD models).
Anderson, T.R., Sinha, B.
core  

Peatlands and the carbon cycle: from local processes to global implications - a synthesis [PDF]

, 2008
Peatlands cover only 3% of the Earth's land surface but boreal and subarctic peatlands store about 15-30% of the world's soil carbon ( C) as peat. Despite their potential for large positive feedbacks to the climate system through sequestration and ...
Berendse, F., Blodau, C., Canadell, J.G., Freeman, C., Holden, J., Limpens, J., Roulet, N., Rydin, H., Schaepman-Strub, G.   +8 more
core   +4 more sources

Deep Dark Futures: Foresighting Human Impacts on Mesopelagic Ecosystem Services

Fish and Fisheries, EarlyView.
This study uses foresighting to explore four plausible future scenarios of human activity affecting mesopelagic ecosystem services; provisioning, regulating, supporting and cultural. Using participatory scenario development, qualitative network modelling and indicator design, we assess systemic risks and early warning signals linked to harvest, climate
Ben Scoulding, Alistair J. Hobday, Rowan Trebilco, Heidi Pethybridge, Ingrid van Putten, Katherine Baker, Karen Evans, David Green, Eriko Hoshino, Haris Kunnath, Clothilde Langlais, Tim P. Lynch, Javier Porobic, Tyler Rohr, Elizabeth H. Shadwick, Caroline A. Sutton, Jodie Van de Kamp, Briannyn Woods, Bowen Zhang   +18 more
wiley   +1 more source

Viruses in aquatic ecosystems: important advancements of the last 20 years and prospects for the future in the field of microbial oceanography and limnology

Advances in Oceanography and Limnology, 2010
Over the last two decades, viruses in aquatic systems have been observed to modify, influence and control aquatic systems. Since the determination decades ago that viruses were abundant in aquatic ecosystems, researchers have demonstrated that viruses ...
Stéphan Jacquet, Takeshi Miki, Rachel Noble, Peter Peduzzi, Steven Wilhelm   +4 more
doaj   +1 more source

Old carbon contributes to aquatic emissions of carbon dioxide in the Amazon [PDF]

, 2014
Knowing the rate at which carbon is cycled is crucial to understanding the dynamics of carbon transfer pathways. Recent technical developments now support measurement of the ¹⁴C age of evaded CO₂ from fluvial
Garnett, M.H., Newton, J., Vihermaa, L.E., Waldron, S.   +3 more
core   +2 more sources

Biogeochemistry, An Introduction [PDF]

, 2011
The concept of biogeochemistry is about one hundred years old. It was first defined by the Russian scientist Vernadsky in 1926. At the beginning of the twentieth century, scientific disciplines divided themselves into many subdisciplines: specialization was the credo.
Laane, R.W.P.M., Middelburg, J.J.
openaire   +2 more sources

Stage‐Specific Indicators of Northern Yellowtail Rockfish (Sebastes flavidus) Recruitment in the California Current Ecosystem

Fisheries Oceanography, EarlyView.
ABSTRACT Oceanographic and ecological conditions can be used to inform forecasts and decision‐making for marine resources, but the dominant drivers of recruitment variability remain poorly understood for many fish stocks. We developed a conceptual life‐history model of the oceanographic and ecological variables that influence the recruitment of ...
Megan L. Feddern, Amanda Darby, Kiva Oken, Nick Tolimieri   +3 more
wiley   +1 more source

Imaging Point Source Groundwater Discharges in a Confined Coastal Aquifer Using Electrical Resistivity

Groundwater, EarlyView.
Marine electrical resistivity tomography (ERT) is applied to characterize point‐source submarine groundwater discharge (PSGD) along NW Yucatán. ERT observations and forward modeling constrain conduit detectability under varying hydrogeological conditions.
Mariana Gómez‐Nicolás, Armando Huitzilt‐Rodriguez, Enrique Iñiguez, Roger Pacheco‐Castro, Marco Pérez‐Flores, Paulo Salles, Fiona Whitaker   +6 more
wiley   +1 more source

Landscape challenges to ecosystem thinking: Creative flood and drought in the American Southwest

Scientia Marina, 2001
Stream ecology is undergoing a transition from ecosystem to landscape science. This change is reflected in many studies; work at Sycamore Creek in Arizona will be used to illustrate the challenges of this transition and several applications.
Stuart G. Fisher, Jill Welter, John Schade, Julia Henry   +3 more
doaj   +1 more source

Fine‐scale patterns of genetic structure in three species of forest birds reveal dynamic Pleistocene history within an Amazonian interfluve

Ibis, EarlyView.
Phylogeographical studies of Amazonian birds have revealed large intraspecific diversity, even within recognized areas of endemism. To understand the origin and organization of Amazonian diversity, including the influence of current and historical landscapes, we need to evaluate fine‐scale patterns of genetic diversity in relation to detailed ...
Affonso Henrique Nascimento de Souza, Camila Duarte Ritter, João Marcos Guimarães Capurucho, Juliana Menger, Camila Cherem Ribas   +4 more
wiley   +1 more source