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Two statistical methods for the detection of environmental thresholds

Publication ,  Journal Article
Qian, SS; King, RS; Richardson, CJ
Published in: Ecological Modelling
August 1, 2003

A nonparametric method and a Bayesian hierarchical modeling method are proposed in this paper for the detection of environmental thresholds. The nonparametric method is based on the reduction of deviance, while the Bayesian method is based on the change in the response variable distribution parameters. Both methods are tested using macroinvertebrate composition data from a mesocosm experiment conducted in the Everglades wetlands, where phosphorus is the limiting nutrient. Using the percent of phosphorus tolerant species and a dissimilarity index as the response variables, both methods resulted in a similar and well-defined TP concentration threshold, with a distribution function that can be used to determine the probability of exceeding the threshold. © 2003 Elsevier B.V. All rights reserved.

Duke Scholars

Published In

Ecological Modelling

DOI

ISSN

0304-3800

Publication Date

August 1, 2003

Volume

166

Issue

1-2

Start / End Page

87 / 97

Related Subject Headings

  • Ecology
 

Citation

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ICMJE
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Qian, S. S., King, R. S., & Richardson, C. J. (2003). Two statistical methods for the detection of environmental thresholds. Ecological Modelling, 166(1–2), 87–97. https://doi.org/10.1016/S0304-3800(03)00097-8
Qian, S. S., R. S. King, and C. J. Richardson. “Two statistical methods for the detection of environmental thresholds.” Ecological Modelling 166, no. 1–2 (August 1, 2003): 87–97. https://doi.org/10.1016/S0304-3800(03)00097-8.
Qian SS, King RS, Richardson CJ. Two statistical methods for the detection of environmental thresholds. Ecological Modelling. 2003 Aug 1;166(1–2):87–97.
Qian, S. S., et al. “Two statistical methods for the detection of environmental thresholds.” Ecological Modelling, vol. 166, no. 1–2, Aug. 2003, pp. 87–97. Scopus, doi:10.1016/S0304-3800(03)00097-8.
Qian SS, King RS, Richardson CJ. Two statistical methods for the detection of environmental thresholds. Ecological Modelling. 2003 Aug 1;166(1–2):87–97.
Journal cover image

Published In

Ecological Modelling

DOI

ISSN

0304-3800

Publication Date

August 1, 2003

Volume

166

Issue

1-2

Start / End Page

87 / 97

Related Subject Headings

  • Ecology