Within conservation literature increasing attention is on conservation opportunity valuing actual implementation. Previously focus has been on conservation priority among areas with the highest biological value or lowest cost. However, when nature management has to take place on private land...

In a multicriteria decision problem it may happen that the preference of the decision-maker on some criterion is modeled by means of a semiorder structure. If the available information is qualitative, one often needs a numerical representation of the semiorder. We investigate the set of...