Mapping ecological risks with a portfolio-based technique: incorporating uncertainty and decision-making preferences

Denys Yemshanov; Frank H. Koch; Mark Ducey; Klaus Koehler

Mapping ecological risks with a portfolio-based technique: incorporating uncertainty and decision-making preferences

Formally Refereed

Authors:	Denys Yemshanov, Frank H. Koch, Mark Ducey, Klaus Koehler
Year:	2013
Type:	Scientific Journal
Station:	Southern Research Station
Source:	Diversity and Distributions 19:567–579

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Abstract

Geographic mapping of risks is a useful analytical step in ecological risk assessments and in particular, in analyses aimed to estimate risks associated with introductions of invasive organisms. In this paper, we approach invasive species risk mapping as a portfolio allocation problem and apply techniques from decision theory to build an invasion risk map that combines risk and uncertainty in a single map product.

Keywords

Epistemic uncertainty, human-assisted spread, invasibility, mean-variance frontier, road network, stochastic dominance

Citation

Yemshanov, Denys; Koch, Frank H.; Ducey, Mark; Koehler, Klaus. 2013. Mapping ecological risks with a portfolio-based technique: incorporating uncertainty and decision-making preferences. Diversity and Distributions 19:567 579.