Herbivory and fire shape plant community structure in grass-dominated ecosystems, but these disturbance regimes are being altered around the world. To assess the consequences of such alterations, we excluded large herbivores for seven years from mesic savanna grasslands sites burned at different frequencies in North America (Konza Prairie Biological Station, Kansas, USA) and South Africa (Kruge...

We provide a necessary and sufficient condition for strict local minimisers of differences of convex (DC) functions, as well as related results pertaining to characterisation of (non-strict) local minimisers, and uniqueness of global minimisers.

In 1926, Ernst Mally proposed the first system of deontic logic. His system turned out to be unacceptable. How can it be repaired? We discuss several proposals to reformulate it in terms of strict implication, relevant implication and strict relevant implication.

The untilmodality of temporal logic “A until B” is called strict in its first argument when it does not constrain the value of the first argument A at the instant at which the formula is evaluated. In this paper, we show that linear metric temporal logics with bounded until modalities that are non-strict in the first argument are as expressive as those with strict modalities, when interpreted o...

1 Introduction 2 Defining conditionals 2.1 What is a conditional? 2.2 The marking of conditionals 3 Structural issues 3.1 The position of merger of the if-clause 3.1.1 If-clauses as adverbial clauses 3.1.2 Height of attachment 3.1.3 A source for sentence-initial if-clauses 3.2 Clause-internal syntax of the if-clause 3.2.1 The location of if 3.2.2 The conditional–interrogative link 3.2.3 The abs...

The Kruger National Park is a stronghold for African wild dog Lycaon pictus and cheetah Acinonyx jubatus conservation in South Africa. Tourist photographic surveys have been used to evaluate the minimum number of wild dogs and cheetahs alive over the last two decades. Photographic-based capture-recapture techniques for open populations were used on data collected during a survey done in 2008/9....

Theoretical codes (TC’s) are the abstract models that emerge during the sorting of mature memos in to a potential substantive theory. They conceptualize the integration of substantive codes into hypotheses of a substantive theory. The researcher is challenged to staying open to their emergence and earned relevance rather than their preconceived forcing, which is very strong. They not only bring...

We examine the notion of conditionals and the role of conditionals in inductive logics and arguments. We identify three mistakes commonly made in the study of, or motivation for, non-classical logics. A nonmonotonic consequence relation based on evidential probability is formulated. With respect to this acceptance relation some rules of inference of System P are unsound, and we propose refineme...

In contemporary discussions of the Ramsey Test for conditionals, it is commonly held that (i) supposing the antecedent of a conditional is adopting a potential state of full belief, and (ii) Modus Ponens is a valid rule of inference. I argue on the basis of Thomason Conditionals (such as ‘If Sally is deceiving, I do not believe it’) and Moore’s Paradox that both claims are wrong. I then develop...