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Social Networks of Agents Exploiting a Resource

Social Networks of Agents Exploiting a Resource. L.R. Little A.D. McDonald. Outline. Integrated agent-based modelling for evaluating management strategies The Northwest shelf project The importance of realistic modelling of human use Information flow among fishing vessels

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Social Networks of Agents Exploiting a Resource

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  1. Social Networks of Agents Exploiting a Resource L.R. Little A.D. McDonald

  2. Outline • Integrated agent-based modelling for evaluating management strategies • The Northwest shelf project • The importance of realistic modelling of human use • Information flow among fishing vessels • What is the effect of • social structure on resource dynamics • resource dynamics on social structure • toy models

  3. Agent-based models for managing natural resources 1

  4. Agent-based models for managing natural resources 2

  5. Agent-based models for managing natural resources 3

  6. Agent-based models for managing natural resources 4

  7. Agent-based models for managing natural resources 5

  8. Model Use • predicted state of fish biomass • as a consequence 6 different management options (increasing amount of area closed to fishing) Relative Available Biomass • 3 levels of • infringement in the projection period • no infringement • edge infringement • complete infringement We need a realistic behaviour of fishing effort allocation.

  9. Do agents act independently? Information sharing among agents in an ABM Cumulative Effort distribution using past CPUE data Cumulative effort distribution using past CPUE data and other effort distribution of other vessels Cairns 1 Cairns 2 Cooktown

  10. Simple models of agents harvesting a resource • Agent interactions (social dynamics) capture realistic social networks characteristics What effect does the state of the resource have on such social dynamics? What is effect of such social dynamics on the management of a resource? Toy model 1 Toy model 2

  11. Acknowledgements • CSIRO Centre for Complex System Science • NWS team – Keith Sainsbury, Beth Fulton, Randall Gray et al.

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