What Is An Honest Signal
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Animal Signaling and Function
Author: Duncan J. Irschick
language: en
Publisher: John Wiley & Sons
Release Date: 2015-01-20
The diversity of animal signals has been widely documented, and the generality of animal signals also tantalizingly suggests that there are common mechanisms that have selected for their origin. However, while much progress has been made on some fronts, we still lack a general theory about why the diversity of signaling structures exist. Our compilation will directly address this gap by focusing on an exciting new arena of sexual selection, namely using functional approaches to understand signaling. This approach is rooted in the idea that many signals are designed to transmit important functional imformation that is both important for issues of male quality (and hence male competition), and female choice. The increasing use of technology in sexual selection studies has enabled researchers to test whether signaling is either constrained by, or accurately transmits information about functional capacities. Further, in animals that fight vigorously, functional capacities such as endurance or strength may make the difference between winning and losing. This volume brings together a diverse collection of researchers who are actively investigating how function and signaling are related. These researchers use both a variety of methods and taxa to study animal signaling, and we believe that this integrative view is important to open up fresh vistas for why animal signals have evolved.
The Handbook of Evolutionary Psychology
The foundations of practice and the most recent discoveries intheintriguing newfield of evolutionary psychology Why is the mind designed the way it is? How does input from theenvironment interact with the mind to produce behavior? By takingaim at such questions, the science of evolutionary psychology hasemerged as a vibrant new discipline producing groundbreakinginsights. In The Handbook of Evolutionary Psychology,leading contributors discuss the foundations of the field as wellas recent discoveries currently shaping this burgeoning area ofpsychology. Guided by an editorial board made up of such luminaries as LedaCosmides, John Tooby, Don Symons, Steve Pinker, Martin Daly, MargoWilson, and Helena Cronin, the text's chapters delve into acomprehensive range of topics, covering the full range of thediscipline: Foundations of evolutionary psychology Survival Mating Parenting and kinship Group living Interfaces with traditional disciplines of evolutionarypsychology And interfaces across disciplines. In addition to an in-depth survey of the theory and practice ofevolutionary psychology, the text also features an enlighteningdiscussion of this discipline in the context of the law, medicine,and culture. An Afterword by Richard Dawkins provides some finalthoughts from the renowned writer and exponent of evolutionarytheory. Designed to set the standard for handbooks in the field,The Handbook of Evolutionary Psychology is an indispensablereference tool for every evolutionary psychologist and student.
Animal Signals
Author: John Maynard Smith
language: en
Publisher: Oxford University Press
Release Date: 2003-11-06
Why are animal signals reliable? This is the central problem for evolutionary biologists interested in signals. Of course, not all signals are reliable; but most are, otherwise receivers of signals would ignore them. A number of theoretical answers have been proposed and empirical studies made, but there still remains a considerable amount of confusion. The authors, one a theoretician the other a fieldworker, introduce a sense of order to this chaos. A significant cause of confusion has been the tendency for different researchers to use either the same term with different meanings, or different terms with the same meaning. The authors attempt to clarify these differences. A second cause of confusion has arisen because many biologists continue to assume that there is only one correct explanation for signal reliability. The authors argue that the reliability of signals is maintained in several ways, relevant in different circumstances, and that biologists must learn to distinguish between them. In this book they explain the different theories, give examples of signalling systems to which one or another theory applies, and point to the many areas where further work, both theoretical and empirical, is required.