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How2QnD: Design and Construction of a Game-Style, Environmental Simulation Engine and Interface Using UML, XML, and Java

In: Advances in Modeling Agricultural Systems

Author

Listed:
  • Gregory A. Kiker

    (University of Florida)

  • Rohit Thummalapalli

Abstract

Within wicked environmental challenges, problems that exist in the nexus of environmental science and environmental values, neatly and elegantly optimized solutions are difficult to find and rarely accepted by stakeholders. Different role players must explore the challenge adaptively and through viewpoints to contribute to their understanding of the situation and to learn about the dynamics and values of other relevant stakeholders. The Questions and Decisions (QnD) system (Kiker, G.A., et al., Springer Science, 2006, 11, 151–186) was created to provide an effective and efficient tool to integrate ecosystem, management, economics, and sociopolitical factors into a user-friendly game/model framework. QnD is written in object-oriented Java and can be deployed in stand-alone or Web-based (browser-accessed) modes. The QnD model links spatial components within geographic information system (GIS) files to the abiotic (climatic) and biotic interactions that exist in an environmental system. QnD can be used in a rigorous modeling role to mimic system elements obtained from scientific data or it can be used to create a “cartoon” style depiction of the system to promote greater learning and discussion from decision participants. Elephant and vegetation dynamics in Africa provide an excellent example of a wicked environmental challenge as conservation objectives and societal values (both local and international) often have conflicting goals concerning appropriate elephant densities and population control options in protected areas. In attempting to capture many dynamic aspects of elephant–vegetation relationships, previous models depicting the savanna ecosystem of the Kruger National Park (KNP), South Africa, can become quite complex and demanding in terms of detailed parameter inputs. Therefore, the purpose of this modeling project was to create a simplified, management-focused, visual simulation of the KNP in order to chart future elephant, tree, and grass scenarios. QnD:EleSim has been designed to spatially simulate elephant–vegetation dynamics in 195 areas at 10-km resolution at a monthly time-step. As the effects of elephant populations on the tree–grass equilibrium of the savanna are documented, future management decisions can be advised after analysis of potential scenarios.

Suggested Citation

  • Gregory A. Kiker & Rohit Thummalapalli, 2009. "How2QnD: Design and Construction of a Game-Style, Environmental Simulation Engine and Interface Using UML, XML, and Java," Springer Optimization and Its Applications, in: Panos M. Pardalos & Petraq J. Papajorgji (ed.), Advances in Modeling Agricultural Systems, pages 103-129, Springer.
    • Handle: RePEc:spr:spochp:978-0-387-75181-8_6
    DOI: 10.1007/978-0-387-75181-8_6
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    Cited by:

    1. Kanapaux, William & Kiker, Gregory A., 2013. "Development and testing of an object-oriented model for adaptively managing human disturbance of least tern (Sternula antillarum) nesting habitat," Ecological Modelling, Elsevier, vol. 268(C), pages 64-77.

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