Thesis--Lund. / Extra t.p. with thesis statement inserted. Bibliography: p. 194-196.

Thesis (M.A.)--Duquesne University, 2003. / Title from document title page. Abstract included in electronic submission form. Includes bibliographical references (p. 85-94).

Thesis (Ph.D.)--University of Nebraska-Lincoln, 2006. / Title from title screen (viewed Feb. 8, 2007). PDF text: iv, 319 p. UMI publication number: AAT 3218216. Includes bibliographical references. Also available in microfilm and microfiche format.

Inaug. Diss. -- Frankfurt am Main. / Vita. Bibliography: p. 144-146.

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Pragmatics is the branch of linguistics that addresses the relationship between language and its external environment – in particular the communicative context. Social evolution (or sociobiology) is the branch of the biological sciences that studies the social behaviour of organisms, particularly with respect to the ecological and evolutionary forces with which it must interact. These two disciplines thus share a natural epistemic link, one that is concerned with the relationship between behaviour and the environment. There has, however, historically been no dialogue between them. This thesis attempts to fill that void: it examines pragmatics from the perspective of social evolution theory. Chapter 1 gives a brief introduction to the two fields and their key ideas, and also discusses why an evolutionary understanding of pragmatics is crucial to the study of language origins. In chapter 2 the vexed question of the biological function of language is discussed. Responses are given to the claims, common in the evolutionary linguistics literature, that the processes of exaptation, self‑organisation and cultural transmission provide alternatives to natural selection as a source of design in nature. The intuitive conclusion that the function of language is communication is provisionally supported, subject to a proper definition of communication. Chapter 3 reviews previous definitions and consequently argues for an account predicated on the designedness of signals and responses. This definition is then used to argue that an evolutionarily coherent model of language should recognise the pragmatic realities of ostension and inference and reject the code‑like idealisation that is often used in its place. Chapter 4 observes that this fits the argument that the biological function of language is communication and then addresses the key question faced by all evolved communication systems – that of evolutionary stability. The human capacity to record and remember the past behaviour of others is seen to be critical. Chapter 5 uses the definition of communication from chapter 3 to describe a very general model of evolved communication, and then uses the constraints of that model to argue that Relevance Theory, or at least some theory of pragmatics with a very similar logical structure, must be correct. Chapter 6 then applies the theoretical apparatus constructed in chapters 2 to 5 to a crucial and topical issue in evolutionary linguistics: the emergence of learnt, symbolic communication. It introduces the Embodied Communication Game, an experimental tool whose basic structure is significantly informed by both social evolutionary and, in particular, pragmatic theory. The novelty of the game is that participants must find a way to communicate not just the content that they wish to convey, but also the very fact that a given behaviour is communicative in nature, and this constraint is found to fundamentally influence the type of system that emerges. Chapter 7, which concludes the thesis, recounts and clarifies what it tells us about the origins and evolution of language, and suggests a number of possible avenues for future research.

Thesis (Ph. D.)--Florida State University, 2004. / Advisor: Dr. S.E. Gontarski, Florida State University, College of Arts and Sciences, Program in the Humanities. Title and description from dissertation home page (viewed June 16, 2004). Includes bibliographical references.

Female mammals play a central role in determination of social structure and are thus central to understanding the overall fission-fusion grouping pattern characteristic of many delphinid societies. Focusing specifically on female-female relatedness and association patterns, I have analysed more than 17 years of group composition, behavioural data, and genetic information to investigate complex interactions between behavioural ecology and relatedness and to also examine the common social evolutionary theory, that variation in mammalian social systems is typically attributed to five main factors: inclusive fitness, predation pressure, sexual conflict and male harassment, inbreeding avoidance, and resource competition. Overall, I found that female bottlenose dolphin association patterns depend upon the interplay between matrilineal kinship, biparental relatedness and home range overlap, and that female bottlenose dolphins seem to adapt their social strategies to seasonal variation in levels of predation and male harassment. The presence of both high sexual conflict and bisexual philopatry lead me to investigate the extent of inbreeding avoidance. I found that more than 14% of the calves were most likely the product of mating between close relatives, and identified female fitness costs to inbreeding. We were able to show that the effect of inbreeding on females??? fitness occurs via two independent mechanisms: being inbred and having at least one inbred calf. Inbred calves are on average weaned later than non-inbred calves, and a female???s first calf has a higher probability to be an inbred than subsequent calves. Last, I examined whether sociality provides inclusive fitness to female bottlenose dolphins through an investigation of both the additive genetic and social variance components of female calving success using a pedigree-free animal model. I found that variance in calving success of female bottlenose dolphins is best explained by complex genetic and social interactions. Females with high calving success showed both high genetic and social merit; they not only have good genes but also prefer to associate with others of high fitness. This study reveals that both social and heritable genetic variance contribute to fitness trait variance in the wild.