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    Marsh macrophyte responses to inundation anticipate impacts of sea-level rise and indicate ongoing drowning of North Carolina marshes

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    Author
    Voss, Christine M.; Christian, Robert R. (Robert Raymond), 1947-; Morris, James T.
    Abstract
    In situ persistence of coastal marsh habitat as sea level rises depends on whether macrophytes induce compensatory accretion of the marsh surface. Experimental planters in two North Carolina marshes served to expose two dominant macrophyte species to six different elevations spanning 0.75 m (inundation durations 0.4–99 %). Spartina alterniflora and Juncus roemerianus exhibited similar responses—with production in planters suggesting initial increases and then demonstrating subsequent steep declines with increasing inundation, conforming to a segment of the ecophysiological parabola. Projecting inundation levels experienced by macrophytes in the planters onto adjacent marsh platforms revealed that neither species occupied elevations associated with increasing production. Declining macrophyte production with rising seas reduces both bioaccumulation of roots below-ground and baffle-induced sedimentation above-ground. By occupying only descending portions of the parabola, macrophytes in central North Carolina marshes are responding to rising water levels by progressive declines in production, ultimately leading to marsh drowning.
    URI
    http://hdl.handle.net/10342/5547
    Date
    2012-10
    Citation:
    APA:
    Voss, Christine M., & Christian, Robert R. (Robert Raymond), 1947-, & Morris, James T.. (October 2012). Marsh macrophyte responses to inundation anticipate impacts of sea-level rise and indicate ongoing drowning of North Carolina marshes. Marine Biology, 160(1), 181- 194. Retrieved from http://hdl.handle.net/10342/5547

    Display/Hide MLA, Chicago and APA citation formats.

    MLA:
    Voss, Christine M., and Christian, Robert R. (Robert Raymond), 1947-, and Morris, James T.. "Marsh macrophyte responses to inundation anticipate impacts of sea-level rise and indicate ongoing drowning of North Carolina marshes". Marine Biology. 160:1. (181-194), October 2012. September 27, 2023. http://hdl.handle.net/10342/5547.
    Chicago:
    Voss, Christine M. and Christian, Robert R. (Robert Raymond), 1947- and Morris, James T., "Marsh macrophyte responses to inundation anticipate impacts of sea-level rise and indicate ongoing drowning of North Carolina marshes," Marine Biology 160, no. 1 (October 2012), http://hdl.handle.net/10342/5547 (accessed September 27, 2023).
    AMA:
    Voss, Christine M., Christian, Robert R. (Robert Raymond), 1947-, Morris, James T.. Marsh macrophyte responses to inundation anticipate impacts of sea-level rise and indicate ongoing drowning of North Carolina marshes. Marine Biology. October 2012; 160(1): 181-194. http://hdl.handle.net/10342/5547. Accessed September 27, 2023.
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