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Evolutionary Change and Heterochrony

Evolutionary Change and Heterochrony PDF Author: Ken McNamara
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 312

Book Description
Recent studies have shown that relative changes in the rates and timing of growth during ontogeny, known as heterochrony, play a significant role in evolution. In this study, biologists, palaeontologists and anthropologists present overviews of current activity in heterochrony in their disciplines.

Evolutionary Change and Heterochrony

Evolutionary Change and Heterochrony PDF Author: Ken McNamara
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 312

Book Description
Recent studies have shown that relative changes in the rates and timing of growth during ontogeny, known as heterochrony, play a significant role in evolution. In this study, biologists, palaeontologists and anthropologists present overviews of current activity in heterochrony in their disciplines.

Shapes of Time

Shapes of Time PDF Author: Ken McNamara
Publisher:
ISBN:
Category : Religion
Languages : en
Pages : 368

Book Description
How did evolution produce specific characteristics, such as the feet of amphibians, or the eye and brain that allow us to read these words? Museum curator Kenneth McNamara delves into the fascinating field of heterochrony to show the errant results when a normal pattern of embryological development is gently nudged off-course. 60 illustrations.

Heterochrony in Evolution

Heterochrony in Evolution PDF Author: Michael L. McKinney
Publisher: Springer Science & Business Media
ISBN: 1489907955
Category : Science
Languages : en
Pages : 353

Book Description
... an adult poet is simply an individual in a state of arrested development-in brief, a sort of moron. Just as all of us, in utero, pass through a stage in which we are tadpoles, ... so all of us pass through a state, in our nonage, when we are poets. A youth of seventeen who is not a poet is simply a donkey: his development has been arrested even anterior to that of the tadpole. But a man of fifty who still writes poetry is either an unfortunate who has never developed, intellectually, beyond his teens, or a conscious buffoon who pretends to be something he isn't-something far younger and juicier than he actually is. -H. 1. Mencken, High and Ghostly Matters, Prejudices: Fourth Series (1924) Where would evolution be, Without this thing, heterochrony? -M. L. McKinney (1987) One of the joys of working in a renascent field is that it is actually possible to keep up with the literature. So it is with mixed emotions that we heterochronists (even larval forms like myself) view the recent "veritable explosion of interest in heterochrony" (in Gould's words in this volume). On the positive side, it is ob viously necessary and desirable to extend and expand the inquiry; but one regrets that already we are beginning to talk past, lose track of, and even ignore each other as we carve out individual interests.

Heterochrony

Heterochrony PDF Author: Michael L. McKinney
Publisher: Springer Science & Business Media
ISBN: 1475707738
Category : Science
Languages : en
Pages : 452

Book Description
The authors outline evolutionary thought from pre-Darwinian biology to current research on the subject. They broadly label the factors of evolution as intrinsic and extrinsic, with Darwin favoring the latter by emphasizing the process of natural selection and later followers of Darwin carrying t

Human Evolution Through Developmental Change

Human Evolution Through Developmental Change PDF Author: Nancy Minugh-Purvis
Publisher: JHU Press
ISBN: 9780801867323
Category : Science
Languages : en
Pages : 536

Book Description
This book reflects two major strands of research in the study of human heterochrony, the change in the timing and rate of development of individuals.

Evolutionary Developmental Biology

Evolutionary Developmental Biology PDF Author: Brian K. Hall
Publisher: Springer Science & Business Media
ISBN: 940113961X
Category : Science
Languages : en
Pages : 485

Book Description
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.

Beyond Heterochrony

Beyond Heterochrony PDF Author: Miriam Zelditch
Publisher: Wiley-Liss
ISBN:
Category : Medical
Languages : en
Pages : 400

Book Description
Heterochrony has been a dominant theme in the explosion of interest of evolution and development. This book explores beyond heterochrony for the links between evolutionary and developmental processes, as well as the origins of morphological diversity.

HETEROCHRONY IN EVOLUTION

HETEROCHRONY IN EVOLUTION PDF Author: MCKINNEY
Publisher:
ISBN: 9781489907967
Category :
Languages : en
Pages : 368

Book Description


The Shape of Life

The Shape of Life PDF Author: Rudolf A. Raff
Publisher: University of Chicago Press
ISBN: 022625657X
Category : Science
Languages : en
Pages : 545

Book Description
Rudolf Raff is recognized as a pioneer in evolutionary developmental biology. In their 1983 book, Embryos, Genes, and Evolution, Raff and co-author Thomas Kaufman proposed a synthesis of developmental and evolutionary biology. In The Shape of Life, Raff analyzes the rise of this new experimental discipline and lays out new research questions, hypotheses, and approaches to guide its development. Raff uses the evolution of animal body plans to exemplify the interplay between developmental mechanisms and evolutionary patterns. Animal body plans emerged half a billion years ago. Evolution within these body plans during this span of time has resulted in the tremendous diversity of living animal forms. Raff argues for an integrated approach to the study of the intertwined roles of development and evolution involving phylogenetic, comparative, and functional biology. This new synthesis will interest not only scientists working in these areas, but also paleontologists, zoologists, morphologists, molecular biologists, and geneticists.

Developmental Plasticity and Evolution

Developmental Plasticity and Evolution PDF Author: Mary Jane West-Eberhard
Publisher: Oxford University Press
ISBN: 0198028563
Category : Science
Languages : en
Pages : 815

Book Description
The first comprehensive synthesis on development and evolution: it applies to all aspects of development, at all levels of organization and in all organisms, taking advantage of modern findings on behavior, genetics, endocrinology, molecular biology, evolutionary theory and phylogenetics to show the connections between developmental mechanisms and evolutionary change. This book solves key problems that have impeded a definitive synthesis in the past. It uses new concepts and specific examples to show how to relate environmentally sensitive development to the genetic theory of adaptive evolution and to explain major patterns of change. In this book development includes not only embryology and the ontogeny of morphology, sometimes portrayed inadequately as governed by "regulatory genes," but also behavioral development and physiological adaptation, where plasticity is mediated by genetically complex mechanisms like hormones and learning. The book shows how the universal qualities of phenotypes--modular organization and plasticity--facilitate both integration and change. Here you will learn why it is wrong to describe organisms as genetically programmed; why environmental induction is likely to be more important in evolution than random mutation; and why it is crucial to consider both selection and developmental mechanism in explanations of adaptive evolution. This book satisfies the need for a truly general book on development, plasticity and evolution that applies to living organisms in all of their life stages and environments. Using an immense compendium of examples on many kinds of organisms, from viruses and bacteria to higher plants and animals, it shows how the phenotype is reorganized during evolution to produce novelties, and how alternative phenotypes occupy a pivotal role as a phase of evolution that fosters diversification and speeds change. The arguments of this book call for a new view of the major themes of evolutionary biology, as shown in chapters on gradualism, homology, environmental induction, speciation, radiation, macroevolution, punctuation, and the maintenance of sex. No other treatment of development and evolution since Darwin's offers such a comprehensive and critical discussion of the relevant issues. Developmental Plasticity and Evolution is designed for biologists interested in the development and evolution of behavior, life-history patterns, ecology, physiology, morphology and speciation. It will also appeal to evolutionary paleontologists, anthropologists, psychologists, and teachers of general biology.