The Origins of Larvae

The Origins of Larvae PDF

Author: D. Williamson

Publisher: Springer Science & Business Media

Published: 2013-04-17

Total Pages: 271

ISBN-13: 9401703574

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Many biological facts are irreconcilable with the assumption that larvae and adults evolved from the same genetic stock. The author of this book draws attention to these, and presents his alternative hypothesis that larvae have been transferred from one taxon to another. In his previous book (Larvae and Evolution, 1992), the author used larval transfer to explain developmental anomalies in eight animal phyla. In the present book, he claims that the basic forms of all larvae and all embryos have been transferred from foreign taxa. This leads to a new, comprehensive theory on the origin of embryos and larvae, replacing the discredited 'recapitulation' theory of Haeckel (1866). Metamorphosis, previously unexplained, represents a change in taxon during development.

The Origin and Evolution of Larval Forms

The Origin and Evolution of Larval Forms PDF

Author: Brian K. Hall

Publisher: Gulf Professional Publishing

Published: 1999-01-12

Total Pages: 466

ISBN-13: 9780127309354

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A classic problem in evolutionary biology is the origin of larvae - how and why did they occur? Indeed, it has often been suggested that many entirely unique body plans first originated as retained larvae of ancestral organisms. But what of the larvae themselves? What developmental and evolutionary forces shape and constrain them? These questions and others are dealt with by this international team of leading zoologists and developmental biologists. Intended to contribute to a continuing dialectic, this book presents diverse opinions as well as manifold conclusions. Certain to challenge and intrique, The Origin and Evolution of Larval Forms should be a part of the library of every evolutionary and developmental biologist interested in larvae and their significance.

Larvae and Evolution

Larvae and Evolution PDF

Author: D. Williamson

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 235

ISBN-13: 9401580774

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Many biological facts are irreconcilable with the assumption that larvae and adults evolved from the same genetic stock. The author of this book draws attention to these, and presents his alternative hypothesis that larvae have been transferred from one taxon to another. In his previous book (Larvae and Evolution, 1992), the author used larval transfer to explain developmental anomalies in eight animal phyla. In the present book, he claims that the basic forms of all larvae and all embryos have been transferred from foreign taxa. This leads to a new, comprehensive theory on the origin of embryos and larvae, replacing the discredited 'recapitulation' theory of Haeckel (1866). Metamorphosis, previously unexplained, represents a change in taxon during development.

Larvae and Evolution

Larvae and Evolution PDF

Author: Donald Williamson

Publisher: Springer

Published: 2014-10-05

Total Pages: 223

ISBN-13: 9789401580786

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Many biological facts are irreconcilable with the assumption that larvae and adults evolved from the same genetic stock. The author of this book draws attention to these, and presents his alternative hypothesis that larvae have been transferred from one taxon to another. In his previous book (Larvae and Evolution, 1992), the author used larval transfer to explain developmental anomalies in eight animal phyla. In the present book, he claims that the basic forms of all larvae and all embryos have been transferred from foreign taxa. This leads to a new, comprehensive theory on the origin of embryos and larvae, replacing the discredited 'recapitulation' theory of Haeckel (1866). Metamorphosis, previously unexplained, represents a change in taxon during development.

Evolutionary Ecology of Marine Invertebrate Larvae

Evolutionary Ecology of Marine Invertebrate Larvae PDF

Author: Tyler J. Carrier

Publisher: Oxford University Press

Published: 2018

Total Pages: 365

ISBN-13: 0198786964

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"More than seventy percent of the earth's surface is covered by the ocean which is home to a staggering and sometimes overwhelming diversity of organisms, the majority of which reside in pelagic form. Marine invertebrate larvae are an integral component of this pelagic diversity and have stimulated the curiosity of researchers for centuries. This accessible, upper-level text provides an important and timely update on the topic of larval evolution and ecology, representing the first major synthesis of this interdisciplinary field for more than 20 years. The content is structured around four major areas: evolutionary origins and transitions in developmental mode; functional morphology and ecology of larval forms; larval transport, settlement, and metamorphosis; larval ecology in extreme and changing environments. This novel synthesis integrates traditional larval ecology with life history theory, evolutionary developmental biology, and modern genomics research to provide a research and teaching tool for decades to come." -- from the rear cover.

Developmental Biology and Larval Ecology

Developmental Biology and Larval Ecology PDF

Author: Klaus Anger

Publisher: Oxford University Press

Published: 2020-04-22

Total Pages: 489

ISBN-13: 0190094982

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This is the seventh volume of a ten-volume series on The Natural History of the Crustacea. Chapters in this volume synthesize our current understanding of early crustacean development from the egg through the embryonic and larval phase. The first part of this book focuses on the elemental aspects of crustacean embryonic development. The second part of the book provides an account of the larval phase of crustaceans and describes processes that influence the development from hatching to an adult-like juvenile. The third and final part of the book explores ecological interactions during the planktonic phase and how crustacean larvae manage to find food, navigate the dynamic water column, and avoid predators in a medium that offers few refuges.

Evolutionary Ecology of Marine Invertebrate Larvae

Evolutionary Ecology of Marine Invertebrate Larvae PDF

Author: Tyler Carrier

Publisher: Oxford University Press

Published: 2017-11-28

Total Pages: 368

ISBN-13: 0191090662

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More than seventy percent of the earth's surface is covered by ocean - the home to a staggering and sometimes overwhelming diversity of organisms, a majority of which reside in pelagic form. Marine invertebrate larvae are an integral part of this pelagic diversity and have stimulated the curiosity of researchers for centuries. This book will provide an important, modern update on the topic of larval ecology, representing the first major synthesis of this interdisciplinary field for more than 20 years. The content will be structured around four major areas: evolutionary origins and transitions in developmental mode; functional morphology and ecology of larval forms; larval transport, settlement, and metamorphosis; climate change and larval ecology at the extremes. This novel synthesis will integrate traditional larval ecology with life history theory, evolutionary developmental biology, and modern genomics research.

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