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    A post-classical economics approach to ecosystem management

    Hearnshaw, Edward J. S.
    Abstract
    A principal purpose of this thesis is to present an economic evaluation of ecosystems. The concept of ecosystem health is adopted to ascertain the status of ecosystems. Ecosystem health is considered in part an economic concept and defined as a function of utility through the ecosystem services that satisfy various needs, subject to preserving the integrity of the adaptive cycle. In order to quantify the utility supplied by ecosystem services the novel utility index Ecosystem Outcome Protection Year (ECOPY) is developed. By forming this index, an evaluation can be performed using cost utility analysis, which avoids monetizing these benefits. An attempt is made to ascertain an appropriate approach for ecosystem management. It is reasoned that expert intuition can determine some kind of macro-regularities in ecosystems despite their complex dynamics. Hence, these inferences could be used for ecosystem management. Adaptive co-management is introduced as a means to bring about the collaboration of experts as resource co-managers. The concept of informed intuition is developed to bring about a systematic approach to learning and evaluation where the mental models of experts are transcribed using fuzzy cognitive mapping. However, it is argued that ecosystems as complex adaptive systems are non-ergodic and full of surprises. Accordingly, abduction, the logic of creative conjecture is systematically developed, for the purposes of maintaining mental model flexibility. This systematic application of abduction with an informed intuition forms the proposed abductive process of research, which is grounded in Shacklean potential surprise, a non-probabilistic function. To demonstrate this novel research process, a post-classical economic evaluation of Te Waihora lake ecosystem is undertaken, which employs the ECOPY index and potential surprise method. This empirical case study reveals various cost-effective management actions for improving lake health, which went beyond the intuitions of resource co-managers. This indicated the potential of the approach, which is considered a significant contribution for the methodological development of ecosystem management.... [Show full abstract]
    Keywords
    abduction; complex adaptive systems; cost utility analysis; adaptive co-management
    Date
    2009
    Type
    Thesis
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    • Department of Financial and Business Systems [526]
    • Doctoral (PhD) Theses [959]
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