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Browsing Ecosystems Center by Title

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Browsing Ecosystems Center by Title

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  • Johnson, Laura T.; Tank, Jennifer L.; Hall, Robert O.; Mulholland, Patrick J.; Hamilton, Stephen K.; Valett, H. Maurice; Webster, Jackson R.; Bernot, Melody J.; McDowell, William H.; Peterson, Bruce J.; Thomas, Suzanne M. (Association for the Sciences of Limnology and Oceanography, 2013-07)
    Most nitrogen (N) assimilation in lake and marine ecosystems is often subsequently released via autochthonous dissolved organic nitrogen (DON) production, but autochthonous DON production has yet to be quantified in flowing ...
  • Zwart, Gabriel; van Hannen, Erik J.; Kamst-van Agterveld, Miranda P.; Van der Gucht, Katleen; Lindstrom, Eva S.; Van Wichelen, Jeroen; Lauridsen, Torben; Crump, Byron C.; Han, Suk-Kyun; Declerck, Steven (American Society for Microbiology, 2003-10)
    The identification of phylogenetic clusters of bacteria that are common in freshwater has provided a basis for probe design to target important freshwater groups. We present a set of 16S ribosomal RNA gene-based oligonucleotide ...
  • McClelland, James W.; Stieglitz, Marc; Pan, Feifei; Holmes, Robert M.; Peterson, Bruce J. (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 ...
  • Chapin, F. Stuart; Woodwell, G. M.; Randerson, James T.; Rastetter, Edward B.; Lovett, G. M.; Baldocchi, Dennis D.; Clark, D. A.; Harmon, Mark E.; Schimel, David S.; Valentini, R.; Wirth, C.; Aber, J. D.; Cole, Jonathan J.; Goulden, Michael L.; Harden, J. W.; Heimann, M.; Howarth, Robert W.; Matson, P. A.; McGuire, A. David; Melillo, Jerry M.; Mooney, H. A.; Neff, Jason C.; Houghton, Richard A.; Pace, Michael L.; Ryan, M. G.; Running, Steven W.; Sala, Osvaldo E.; Schlesinger, William H.; Schulze, E.-D. (2006-01-06)
    Recent patterns and projections of climatic change have focused increased scientific and public attention on patterns of carbon (C) cycling and its controls, particularly the factors that determine whether an ecosystem is ...
  • Rastetter, Edward B.; Yanai, Ruth D.; Thomas, R. Q.; Vadeboncoeur, M. A.; Fahey, Timothy J.; Fisk, M. C.; Kwiatkowski, Bonnie L.; Hamburg, S. P. (Ecological Society of America, 2013-04)
    Nitrogen (N) and phosphorus (P) are tightly cycled in most terrestrial ecosystems, with plant uptake more than 10 times higher than the rate of supply from deposition and weathering. This near-total dependence on recycled ...
  • Harrison, John A.; Maranger, Roxane J.; Alexander, Richard B.; Giblin, Anne E.; Jacinthe, Pierre-Andre; Mayorga, Emilio; Seitzinger, Sybil P.; Sobota, Daniel J.; Wollheim, Wilfred M. (2008-06-25)
    Human activities have greatly increased the transport of biologically available N through watersheds to potentially sensitive coastal ecosystems. Lentic water bodies (lakes and reservoirs) have the potential to act as ...
  • Riskin, Shelby H.; Porder, Stephen; Schipanski, Meagan E.; Bennett, Elena M.; Neill, Christopher (University of California Press, 2013-01)
    Fertilizer-intensive agriculture has been integral to increasing food production over the past half century but has been accompanied by environmental costs. We use case studies of phosphorus fertilizer use in the world’s ...
  • Yang, Xi; Mustard, John F.; Tang, Jianwu; Hong, Xu (American Geophysical Union, 2012-09-14)
    Changes of vegetation phenology in response to climate change in the temperate forests have been well documented recently and have important implications on the regional and global carbon and water cycles. Predicting the ...
  • Wollheim, Wilfred M.; Vorosmarty, Charles J.; Peterson, Bruce J.; Seitzinger, Sybil P.; Hopkinson, Charles S. (American Geophysical Union, 2006-03-30)
    We present a conceptual approach for evaluating the biological and hydrological controls of nutrient removal in different sized rivers within an entire river network. We emphasize a per unit area biological parameter, the ...
  • Algar, Christopher K.; Boudreau, Bernard P.; Barry, Mark A. (American Geophysical Union, 2011-04-20)
    Methane is a strong greenhouse gas, and marine and wetland sediments constitute significant sources to the atmosphere. This flux is dominated by the release of bubbles, and quantitative prediction of this bubble flux has ...
  • Gooseff, Michael N.; Benson, David A.; Briggs, Martin A.; Weaver, Mitchell; Wollheim, Wilfred M.; Peterson, Bruce J.; Hopkinson, Charles S. (American Geophysical Union, 2011-05-11)
    Little is known about the impact of surface transient storage (STS) zones on reach-scale transport and the fate of dissolved nutrients in streams. Exchange with these locations may influence the rates of nutrient cycling ...
  • Bret-Harte, M. Syndonia; Mack, Michelle C.; Shaver, Gaius R.; Huebner, Diane C.; Johnston, Miriam; Mojica, Camilo A.; Pizano, Camila; Reiskind, Julia A. (The Royal Society, 2013-07-08)
    Fire causes dramatic short-term changes in vegetation and ecosystem function, and may promote rapid vegetation change by creating recruitment opportunities. Climate warming likely will increase the frequency of wildfire ...
  • Ducklow, Hugh W.; Myers, Kristen M. S.; Erickson, Matthew; Ghiglione, Jean-Francois; Murray, Alison E. (Inter-Research, 2011-09-20)
    Along the western Antarctic Peninsula, marine bacterioplankton respond to the spring phytoplankton bloom with increases in abundance, production and growth rates, and a seasonal succession in bacterial community composition ...
  • van de Weg, Martine J.; Fetcher, Ned; Shaver, Gaius R. (2012-09)
    Background: In the Arctic region, temperature increases are expected to be greater under anticipated climate change than the global average. Understanding how dark respiration (Rd) of common Arctic plant species acclimates ...
  • Fleeger, John W.; Johnson, David S.; Carman, K. R.; Weisenhorn, P. B.; Gabriele, A.; Thistle, D.; Barry, James P. (2010-01)
    One proposed approach to ameliorate the effects of global warming is sequestration of the greenhouse gas CO2 in the deep sea. To evaluate the environmental impact of this approach, we exposed the sediment-dwelling fauna ...
  • Pascal, Pierre-Yves; Fleeger, John W.; Boschker, Henricus T. S.; Mitwally, Hanan M.; Johnson, David S. (2013-01)
    We examined the responses of biota at or near the base of the benthic food web to nutrient enrichment in salt marsh mudflats in Plum Island estuary (Massachusetts, USA). To simulate eutrophication, nitrate and phosphate ...
  • Sistla, Seeta A.; Rastetter, Edward B.; Schimel, Joshua P. (Ecological Society of America, 2014-02)
    Soils, plants, and microbial communities respond to global change perturbations through coupled, nonlinear interactions. Dynamic ecological responses complicate projecting how global change disturbances will influence ...
  • Neill, Christopher; Patterson, William A.; Crary, David W. (2007-05-09)
    Fire is an important component of the historic disturbance regime of oak and pine forests that occupy sandy soils of the coastal outwash plain of the northeastern U.S. Today prescribed fire is used for fuel reduction and ...
  • Bettez, Neil D.; Marino, Roxanne; Howarth, Robert W.; Davidson, Eric A. (2013-01)
    Mobile sources are the single largest source of nitrogen emissions to the atmosphere in the US. It is likely that a portion of mobile-source emissions are deposited adjacent to roads and thus not measured by traditional ...
  • Balshi, M. S.; McGuire, A. David; Zhuang, Qianlai; Melillo, Jerry M.; Kicklighter, David W.; Kasischke, E.; Wirth, C.; Flannigan, M.; Harden, J. W.; Clein, Joy S.; Burnside, T. J.; McAllister, J.; Kurz, Werner A.; Apps, M.; Shvidenko, A. (American Geophysical Union, 2007-06-20)
    Wildfire is a common occurrence in ecosystems of northern high latitudes, and changes in the fire regime of this region have consequences for carbon feedbacks to the climate system. To improve our understanding of how ...

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