The Sheperd equation and chaos identification

Robert A.M. Gregson*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review


    An equation created by Sheperd (1982) to model stability in exploited fish populations has been found to have a wider application, and it exhibits complicated internal dynamics, including phases of strict periodicity and of chaos. It may be potentially applicable to other psychophysiological contexts. The problems of determining goodness-of fit, and the comparative performance of alternative models including the Shephed model, are briefly addressed.

    Original languageEnglish
    Pages (from-to)145-149
    Number of pages5
    JournalNonlinear Dynamics, Psychology, and Life Sciences
    Issue number2
    Publication statusPublished - Apr 2010


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