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Browsing Ecosystems Center by Title

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Browsing Ecosystems Center by Title

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  • Reilly, John M.; Paltsev, S.; Felzer, Benjamin S.; Wang, X.; Kicklighter, David W.; Melillo, Jerry M.; Prinn, Ronald G.; Sarofim, Marcus C.; Sokolov, Andrei P.; Wang, C. (2006-01)
    Multiple environmental changes will have consequences for global vegetation. To the extent that crop yields and pasture and forest productivity are affected there can be important economic consequences. We examine the ...
  • Wollheim, Wilfred M.; Vorosmarty, Charles J.; Bouwman, A. F.; Green, Pamela; Harrison, John A.; Linder, Ernst; Peterson, Bruce J.; Seitzinger, Sybil P.; Syvitski, James P. M. (American Geophysical Union, 2008-06-20)
    We explored the role of aquatic systems in the global N cycle using a spatially distributed, within-basin, aquatic nitrogen (N) removal model, implemented within the Framework for Aquatic Modeling in the Earth System ...
  • Cardon, Zoe G.; Gray, Dennis W.; Lewis, Louise A. (American Institute of Biological Sciences, 2008-02)
    Microscopic, unicellular, free-living green algae are found in desert microbiotic crusts worldwide. Although morphologically simple, green algae in desert crusts have recently been found to be extraordinarily diverse, with ...
  • Cao, Shixiong; Sun, Ge; Zhang, Zhiqiang; Chen, Liding; Feng, Qi; Fu, Bojie; McNulty, Steve; Shankman, David; Tang, Jianwu; Wang, Yanhui; Wei, Xiaohua (2011-04)
    China leads the world in afforestation, and is one of the few countries whose forested area is increasing. However, this massive ‘‘greening’’ effort has been less effective than expected; afforestation has sometimes produced ...
  • Harmon, Mark E.; Bond-Lamberty, Ben; Tang, Jianwu; Vargas, Rodrigo (American Geophysical Union, 2011-05-14)
    Heterotrophic respiration (RH) is a major process releasing carbon to the atmosphere and is essential to understanding carbon dynamics in terrestrial ecosystems. Here we review what is known about this flux as related to ...
  • Buesseler, Ken O.; McDonnell, Andrew M. P.; Schofield, Oscar M. E.; Steinberg, Deborah K.; Ducklow, Hugh W. (American Geophysical Union, 2010-11-24)
    Drifting cylindrical traps and the flux proxy 234Th indicate more than an order of magnitude higher sinking fluxes of particulate carbon and 234Th in January 2009 than measured by a time-series conical trap used regularly ...
  • Eby, Michael; Weaver, Andrew J.; Alexander, K.; Zickfeld, K.; Abe-Ouchi, A.; Cimatoribus, A. A.; Crespin, E.; Drijfhout, S. S.; Edwards, N. R.; Eliseev, A. V.; Feulner, G.; Fichefet, T.; Forest, C. E.; Goosse, H.; Holden, P. B.; Joos, Fortunat; Kawamiya, M.; Kicklighter, David W.; Kienert, H.; Matsumoto, K.; Mokhov, I. I.; Monier, Erwan; Olsen, S. M.; Pedersen, J. O. P.; Perrette, M.; Philippon-Berthier, G.; Ridgwell, Andy; Schlosser, A.; Schneider von Deimling, T.; Shaffer, G.; Smith, R. S.; Spahni, R.; Sokolov, Andrei P.; Steinacher, M.; Tachiiri, K.; Tokos, K.; Yoshimori, M.; Zeng, N.; Zhao, F. (Copernicus Publications on behalf of the European Geosciences Union, 2013-05-16)
    Both historical and idealized climate model experiments are performed with a variety of Earth system models of intermediate complexity (EMICs) as part of a community contribution to the Intergovernmental Panel on Climate ...
  • Galford, Gillian L.; Melillo, Jerry M.; Kicklighter, David W.; Mustard, John F.; Cronin, Timothy W.; Cerri, Carlos E. P.; Cerri, Carlos C. (Ecological Society of America, 2011-04)
    Tropical ecosystems play a large and complex role in the global carbon cycle. Clearing of natural ecosystems for agriculture leads to large pulses of CO2 to the atmosphere from terrestrial biomass. Concurrently, the remaining ...
  • Bennington, Cynthia C.; Fetcher, Ned; Vavrek, Milan C.; Shaver, Gaius R.; Cummings, Kelli J.; McGraw, James B. (2012-03-30)
    Reciprocal transplant experiments designed to quantify genetic and environmental effects on phenotype are powerful tools for the study of local adaptation. For long-lived species, especially those in habitats with short ...
  • Bokhorst, Stef; Bjerke, Jarle W.; Melillo, Jerry M.; Callaghan, Terry V.; Phoenix, Gareth K. (2009-12-17)
    Arctic climate change is expected to lead to a greater frequency of extreme winter warming events. During these events, temperatures rapidly increase to well above 0ºC for a number of days, which can lead to snow melt ...
  • Felzer, Benjamin S.; Cronin, Timothy W.; Reilly, John M.; Melillo, Jerry M.; Wang, Xiaodong (2007-07-05)
    In this review article, we explore how surface-level ozone affects trees and crops with special emphasis on consequences for productivity and carbon sequestration. Vegetation exposure to ozone reduces photosynthesis, ...
  • Felzer, Benjamin S.; Cronin, Timothy W.; Melillo, Jerry M.; Kicklighter, David W.; Schlosser, C. Adam (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 ...
  • Giblin, Anne E.; Tobias, Craig R.; Song, Bongkeun; Weston, Nathaniel; Banta, Gary T.; Rivera-Monroy, Victor H. (The Oceanography Society, 2013-09)
    Until recently, it was believed that biological assimilation and gaseous nitrogen (N) loss through denitrification were the two major fates of nitrate entering or produced within most coastal ecosystems. Denitrification ...
  • Euskirchen, E. S.; McGuire, A. David; Kicklighter, David W.; Zhuang, Qianlai; Clein, Joy S.; Dargaville, R. J.; Dye, D. G.; Kimball, John S.; McDonald, Kyle C.; Melillo, Jerry M.; Romanovsky, V. E.; Smith, N. V. (2005-10-07)
    In terrestrial high-latitude regions, observations indicate recent changes in snow cover, permafrost, and soil freeze-thaw transitions due to climate change. These modifications may result in temporal shifts in the growing ...
  • Street, Lorna E.; Shaver, Gaius R.; Rastetter, Edward B.; van Wijk, Mark T.; Kaye, Brooke A.; Williams, Mathew (2012-01)
    Arctic vegetation is characterized by high spatial variability in plant functional type (PFT) composition and gross primary productivity (P). Despite this variability, the two main drivers of P in sub-Arctic tundra are ...
  • Moran, Xose Anxelu G.; Lopez-Urrutia, Angel; Calvo-Diaz, Alejandra; Li, William K. W. (2009-03-19)
    The macroecological relationships between marine phytoplankton total cell density, community size structure and temperature have lacked a theoretical explanation. The tiniest members of this planktonic group comprise ...
  • McClelland, James W.; Holmes, Robert M.; Peterson, Bruce J.; Stieglitz, Marc (American Geophysical Union, 2004-09-17)
    Discharge from Eurasian rivers to the Arctic Ocean has increased significantly in recent decades, but the reason for this trend remains unclear. Increased net atmospheric moisture transport from lower to higher latitudes ...
  • Melillo, Jerry M. (IAMSLIC, 2000)
  • Algar, Christopher K.; Boudreau, Bernard P.; Barry, Mark A. (American Geophysical Union, 2011-04-14)
    An understanding of the mechanics of bubble rise in sediments is essential because of the role of bubbles in releasing methane to the atmosphere and the formation and melting of gas hydrates. Past models to describe and ...
  • Kicklighter, David W.; Hayes, Daniel J.; McClelland, James W.; Peterson, Bruce J.; McGuire, A. David; Melillo, Jerry M. (Ecological Society of America, 2013-12)
    Terrestrial carbon dynamics influence the contribution of dissolved organic carbon (DOC) to river networks in addition to hydrology. In this study, we use a biogeochemical process model to simulate the lateral transfer of ...

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