© 2011. The Authors. Licensee: OpenJournals Publishing. This work is licensed under the Creative Commons Attribution License. This paper reviews the experience gained in three South African national parks (Kruger, Table Mountain and Bontebok) with regard to the adaptive management of fire for the conservation of biodiversity. In the Kruger National Park, adaptive approaches have evolved over th...

Extracts of adult schistosomes collected from Hippopotamus amphibius in the Kruger National Park gave alpha naphthyl acetate isoenzyme patterns after polyacrylamide gel electrophoresis that did not correspond with those of either Schistosoma mansoni or S. rodhaini.

An evenly convex credal set is a set of probability measures that is evenly convex; that is, a set that is an intersection of open halfspaces. An evenly convex credal set can for instance encode preference judgments through strict and non-strict inequalities such as P (A) > 1/2 and P (A) ≤ 2/3. This paper presents an axiomatization of evenly convex sets from preferences, where we introduce a ne...

Students of the literature on entailment [7], [1] are familiar with the von Wright-Geach definition of entailment [6], [2]: p entails q if, and only if, by means of logic, it is possible to come to know the truth of •"/> D cp without coming to know the falsehood of p or the truth of q. A competitor of the Lewis account of entailment as strict implication, the von Wright-Geach definition has enj...