the character concept in evolutionary biology

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The Character Concept In Evolutionary Biology

Author : Günter P. Wagner
ISBN : 9780080528908
Genre : Science
File Size : 33. 28 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
ISBN : 0521498880
Genre : Philosophy
File Size : 51. 37 MB
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This collection of Professor Brandon's recent essays covers all the traditional topics in the philosophy of evolutionary biology.

Homology Genes And Evolutionary Innovation

Author : Günter P. Wagner
ISBN : 9781400851461
Genre : Science
File Size : 46. 25 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.

Classification Evolution And The Nature Of Biology

Author : Alec L. Panchen
ISBN : 0521315786
Genre : Science
File Size : 63. 24 MB
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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.

Modularity

Author : Werner Callebaut
ISBN : 0262033267
Genre : Science
File Size : 42. 3 MB
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Experts from diverse fields, including artificial life, cognitive science, economics, developmental and evolutionary biology, and the arts, discuss modularity.

Historisches W Rterbuch Der Biologie

Author : Georg Toepfer
ISBN : 9783476004390
Genre : Social Science
File Size : 55. 67 MB
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Das Wörterbuch präsentiert die Grundbegriffe der Biologie in Form einer ausführlichen Wort- und Begriffsgeschichte. 112 Haupt- und 1.760 Nebeneinträge, von der Prägung der Begriffe bis zu den heute dominanten Bedeutungen, umreißen die Geschichte der biologischen Ideen, Konzepte und Theorien. Dafür wurden die seit Kurzem digital verfügbaren großen Datenbanken naturwissenschaftlicher Texte systematisch ausgewertet. Eine unschätzbare Informationsquelle nicht nur für Biologen und Wissenschaftshistoriker, sondern auch für Philosophen, Sprach-, Kultur- und Literaturwissenschaftler.

The Adaptive Landscape In Evolutionary Biology

Author : Erik Svensson
ISBN : 9780199595372
Genre : Science
File Size : 79. 14 MB
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The 'Adaptive Landscape' has been a central concept in population genetics and evolutionary biology since this powerful metaphor was first formulated in 1932. This volume brings together historians of science, philosophers, ecologists, and evolutionary biologists, to discuss the state of the art from several different perspectives.

Philosophy Of Evolutionary Biology

Author : Stefan Linquist
ISBN : 9781351911351
Genre : Science
File Size : 86. 18 MB
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The impact of evolutionary theory on the philosophy of science has been no less profound than its impact on the science of biology itself. Advances in this theory provide a rich set of examples for thinking about the nature of scientific explanation and the structure of science. Many of the developments in our understanding of evolution resulted from contributions by both philosophers and biologists engaging over theoretical questions of mutual interest. This volume traces some of the most influential exchanges in this field over the last few decades. Focal topics include the nature of biological functions, adaptationism as an explanatory and methodological doctrine, the levels of selection debate, the concepts of fitness and drift, and the relationship of evolutionary to developmental biology.

Keywords And Concepts In Evolutionary Developmental Biology

Author :
ISBN : 8183562566
Genre :
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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.

Evolutionary Developmental Biology

Author : Brian K. Hall
ISBN : 0412785900
Genre : Science
File Size : 23. 17 MB
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Although evolutionary developmental biology is a new field, its origins lie in the last century; the search for connections between embryonic development (ontogeny) and evolutionary change (phylogeny) has been a long one. Evolutionary developmental biology is however more than just a fusion of the fields of developmental and evolutionary biology. It forges a unification of genomic, developmental, organismal, population and natural selection approaches to evolutionary change. It is concerned with how developmental processes evolve; how evolution produces novel structures, functions and behaviours; and how development, evolution and ecology are integrated to bring about and stabilize evolutionary change. The previous edition of this title, published in 1992, defined the terms and laid out the field for evolutionary developmental biology. This field is now one of the most active and fast growing within biology and this is reflected in this second edition, which is more than twice the length of the original and brought completely up to date. There are new chapters on major transitions in animal evolution, expanded coverage of comparative embryonic development and the inclusion of recent advances in genetics and molecular biology. The book is divided into eight parts which: place evolutionary developmental biology in the historical context of the search for relationships between development and evolution; detail the historical background leading to evolutionary embryology; explore embryos in development and embryos in evolution; discuss the relationship between embryos, evolution, environment and ecology; discuss the dilemma for homology of the fact that development evolves; deal with the importance of understanding how embryos measure time and place both through development and evolutionarily through heterochrony and heterotrophy; and set out the principles and processes that underlie evolutionary developmental biology. With over one hundred illustrations and photographs, extensive cross-referencing between chapters and boxes for ancillary material, this latest edition will be of immense interest to graduate and advanced undergraduate students in cell, developmental and molecular biology, and in zoology, evolution, ecology and entomology; in fact anyone with an interest in this new and increasingly important and interdisciplinary field which unifies biology.

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