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AKSOE: Arbeitskreis Physik sozio-ökonomischer Systeme

AKSOE 3: Dynamics of Groups and Organizations II

AKSOE 3.2: Vortrag

Montag, 26. März 2007, 14:30–15:00, H8

Spatial Structure Formation and Population Dynamics: What a Landscape Ecologist could learn from a Ferromagnet — •Florian Hartig and Martin Drechsler — Helmholtz Centre for Environmental Research - UFZ, Department of Ecological Modeling, Leipzig, Germany

Transferable development rights (TDRs) have been proposed to allow for market based, self organized landscape management, where agents buy and sell rights for landscape development and ecological goals are incorporated in the trading rules. Unlike in CO2 emissions trading, space is a feature of crucial importance for species and therefore for TDR trading, which makes these markets so interesting from a system theoretical point of view.

We apply ecological-economic simulations to study the effect of an agglomeration bonus on a TDR market. The resulting landscape dynamics exhibit similarities to those of a spin system with a temperature (fluctuation of costs for habitats) and a next neighbor interaction (agglomeration bonus). Subsequently, the impact of the emerging landscape structures on population networks living on the latter is examined, taking species characteristics like population growth and dispersal into account.

We show that in addition to cost fluctuations, information access of the agents has a crucial influence on structure formation and the overall effectiveness of a TDR market. The gained understanding is used to optimize the market rules in terms of costs for species conservation.