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    First-Order Error Analysis for Aquatic Plant Production Estimates

    Published: Jan 1984

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    Variance estimates are rarely reported or rigorously determined for net primary production by higher aquatic plants, yet the variance must be known before production estimates can be compared conclusively. First-order error analysis is used here to derive formulae for estimating the variance of annual net production determined by demographic methods. Demographic methods determine net production of even-aged cohorts by analyzing curves of survivorship versus plant mass (Allen curves). Allen curves may be interpolated linearly or logarithmically. Calculation formulae for both alternatives are derived and compared in a common framework. Logarithmic interpolation is more consistent with observed thinning dynamics of even-aged plant stands.


    aquatic plants, demography, production rate, Allen curve, error propagation, first-order error analysis, macrophytes, self-thinning rule

    Author Information:

    Carpenter, SR
    Professor, University of Notre Dame, Notre Dame, IN

    Committee/Subcommittee: D19.24

    DOI: 10.1520/STP35222S

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