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The Character Concept In Evolutionary Biology

Author: Günter P. Wagner
Publisher: Elsevier
ISBN: 0080528902
Size: 38.92 MB
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Almost all evolutionary biologists, indeed all biologists, use particular features to study life. These characteristics or features used by evolutionary biologists are used in a particular way to unravel a tangled evolutionary history, document the rate of evolutionary change, or as evidence of biodiversity. "Characters" are the "data" of evolutionary biology and they can be employed differently in research providing both opportunities and limitations. The Character Concept in Evolutionary Biology is about characters, their use, how different sorts of characters are limited, and what are appropriate methods for character analysis. Leading evolutionary biologists from around the world are contributors to this authoritative review of the "character concept." Because characters and the conception of characters are central to all studies of evolution, and because evolution is the central organizing principle of biology, this book will appeal to a wide cross-section of biologists. Focuses upon "characters" -- fundamental data for evolutionary biology Covers the myriad ways in which characters are defined, described, and distinguished Includes historical, morphological, molecular, behavioral, and philosophical perspectives

Concepts And Methods In Evolutionary Biology

Author: Robert N. Brandon
Publisher: Cambridge University Press
ISBN: 9780521498883
Size: 56.76 MB
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This collection of Professor Brandon's recent essays covers all the traditional topics in the philosophy of evolutionary biology.

Modularity In Development And Evolution

Author: Gerhard Schlosser
Publisher: University of Chicago Press
ISBN: 9780226738536
Size: 76.95 MB
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Modularity in Development and Evolution offers the first sustained exploration of modules from developmental and evolutionary perspectives. Contributors discuss what modularity is, how it can be identified and modeled, how it originated and evolved, and its biological significance. Covering modules at levels ranging from genes to colonies, the book focuses on their roles not just in structures but also in processes such as gene regulation. Among many exciting findings, the contributors demonstrate how modules can highlight key constraints on evolutionary processes. A timely synthesis of a crucial topic, Modularity in Development and Evolution shows the invaluable insights modules can give into both developmental complexities and their evolutionary origins.

Homology Genes And Evolutionary Innovation

Author: Günter P. Wagner
Publisher: Princeton University Press
ISBN: 1400851467
Size: 57.95 MB
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Homology—a similar trait shared by different species and derived from common ancestry, such as a seal's fin and a bird’s wing—is one of the most fundamental yet challenging concepts in evolutionary biology. This groundbreaking book provides the first mechanistically based theory of what homology is and how it arises in evolution. Günter Wagner, one of the preeminent researchers in the field, argues that homology, or character identity, can be explained through the historical continuity of character identity networks—that is, the gene regulatory networks that enable differential gene expression. He shows how character identity is independent of the form and function of the character itself because the same network can activate different effector genes and thus control the development of different shapes, sizes, and qualities of the character. Demonstrating how this theoretical model can provide a foundation for understanding the evolutionary origin of novel characters, Wagner applies it to the origin and evolution of specific systems, such as cell types; skin, hair, and feathers; limbs and digits; and flowers. The first major synthesis of homology to be published in decades, Homology, Genes, and Evolutionary Innovation reveals how a mechanistically based theory can serve as a unifying concept for any branch of science concerned with the structure and development of organisms, and how it can help explain major transitions in evolution and broad patterns of biological diversity.

Keywords And Concepts In Evolutionary Developmental Biology

Author:
Publisher: Discovery Publishing House
ISBN: 9788183562560
Size: 20.86 MB
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Contents: Sting Journalism: Introduction, Forms and Features, Sting Journalism: Ethics, Methods and Hidden Cameras, Sting Operations: Current Perspective, Famous Investigative Journalists and Scandals, Sting Operations in Indian Perspectives.

Monad To Man

Author: Michael Ruse
Publisher: Harvard University Press
ISBN: 0674042999
Size: 16.78 MB
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In interviews with today's major figures in evolutionary biology--including Stephen Jay Gould, E. O. Wilson, Ernst Mayr, and John Maynard Smith--Ruse offers an unparalleled account of evolutionary theory, from popular books to museums to the most complex theorizing, at a time when its status as science is under greater scrutiny than ever before.

Classification Evolution And The Nature Of Biology

Author: Alec L. Panchen
Publisher: Cambridge University Press
ISBN: 9780521315784
Size: 40.31 MB
Format: PDF
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Historically, naturalists who proposed theories of evolution, including Darwin and Wallace, did so in order to explain the apparent relationship of natural classification. This book begins by exploring the intimate historical relationship between patterns of classification and patterns of phylogeny. However, it is a circular argument to use the data for classification. Alec Panchen presents other evidence for evolution in the form of a historically based but rigorously logical argument. This is followed by a history of methods of classification and phylogeny reconstruction including current mathematical and molecular techniques. The author makes the important claim that if the hierarchical pattern of classification is a real phenomenon, then biology is unique as a science in making taxonomic statements. This conclusion is reached by way of historical reviews of theories of evolutionary mechanism and the philosophy of science as applied to biology. The book is addressed to biologists, particularly taxonomists, concerned with the history and philosophy of their subject, and to philosophers of science concerned with biology. It is also an important source book on methods of classification and the logic of evolutionary theory for students, professional biologists, and paleontologists.

Metaphysics And The Origin Of Species

Author: Michael T. Ghiselin
Publisher: SUNY Press
ISBN: 9780791434673
Size: 16.32 MB
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In explaining his individuality thesis, Michael T. Ghiselin provides extended discussions of such philosophical topics as definition, the reality of various kinds of groups, and how we classify traits and processes. He develops and applies the implications for general biology and other sciences and makes the case that a better understanding of species and of classification in general puts biologists and paleontologists in a much better position to understand nature in general, and such processes as extinction in particular.

The Origin Of Animal Body Plans

Author: Wallace Arthur
Publisher: Cambridge University Press
ISBN: 9780521779289
Size: 49.16 MB
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This book examines both the origin of body plans in particular and the evolution of animal development in general.