Echinoderm Morphological Disparity Methods Patterns And Possibilities
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Echinoderm Morphological Disparity Methods Patterns And Possibilities
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Author : Bradley Deline
language : en
Publisher: Cambridge University Press
Release Date : 2021-02-11
Echinoderm Morphological Disparity Methods Patterns And Possibilities written by Bradley Deline and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-11 with Science categories.
The quantification of morphology through time is a vital tool in elucidating macroevolutionary patterns. Studies of disparity require intense effort but can provide insights beyond those gained using other methodologies. Over the last several decades, studies of disparity have proliferated, often using echinoderms as a model organism. Echinoderms have been used to study the methodology of disparity analyses and potential biases as well as documenting the morphological patterns observed in clades through time. Combining morphological studies with phylogenetic analyses or other disparate data sets allows for the testing of detailed and far-reaching evolutionary hypotheses.
Molecular Paleobiology Of The Echinoderm Skeleton
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Author : Jeffrey R. Thompson
language : en
Publisher: Cambridge University Press
Release Date : 2022-12-01
Molecular Paleobiology Of The Echinoderm Skeleton written by Jeffrey R. Thompson and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-12-01 with Science categories.
The echinoderms are an ideal group to understand evolution from a holistic, interdisciplinary framework. The genetic regulatory networks underpinning development in echinoderms are some of the best known for any model group. Additionally, the echinoderms have an excellent fossil record, elucidating in in detail the evolutionary changes underpinning morphological evolution. In this Element, the echinoderms are discussed as a model group for molecular palaeobiological studies, integrating what is known of their development, genomes, and fossil record. Together, these insights shed light on the molecular and morphological evolution underpinning the vast biodiversity of echinoderms, and the animal kingdom more generally.
A Review And Evaluation Of Homology Hypotheses In Echinoderm Paleobiology
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Author : Colin D. Sumrall
language : en
Publisher: Cambridge University Press
Release Date : 2023-04-13
A Review And Evaluation Of Homology Hypotheses In Echinoderm Paleobiology written by Colin D. Sumrall and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-04-13 with Science categories.
The extraxial-axial theory (EAT) and universal elemental homology (UEH) are often portrayed as mutually exclusive hypotheses of homology within pentaradiate Echinodermata. EAT describes homology upon the echinoderm bauplan, interpreted through early post-metamorphic growth and growth zones, dividing it into axial regions generally associated with elements of the ambulacral system and extraxial regions that are not. UEH describes the detailed construction of the axial skeleton, dividing it into homologous plates and plate series based on symmetry, early growth, and function. These hypotheses are not in conflict; the latter is rooted in refinement of the former. Some interpretive differences arise because many of the morphologies described from eleutherozoan development are difficult to reconcile with Paleozoic forms. Conversely, many elements described for Paleozoic taxa by UEH, such as the peristomial border plates, are absent in eleutherozoans. This Element recommends these two hypotheses be used together to generate a better understanding of homology across Echinodermata.
Elements Of Paleontology Crinoid Feeding Strategies New Insights From Subsea Video And Time Lapse
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Author : Meyer, David L.
language : en
Publisher:
Release Date :
Elements Of Paleontology Crinoid Feeding Strategies New Insights From Subsea Video And Time Lapse written by Meyer, David L. and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Echinoderms Munchen
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Author : Thomas Heinzeller
language : en
Publisher: Taylor & Francis
Release Date : 2004-12-15
Echinoderms Munchen written by Thomas Heinzeller and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-12-15 with Science categories.
Since 1972, scientists from all over the world working on fundamental questions of echinoderm biology and palaeontology have conferred every three years to exchange current views and results. The 11th International Echinoderm Conference held at the University of Munich, Germany, from 6-10 October 2003,continued this tradition. This volume
Echinoderms In A Changing World
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Author : Craig Johnson
language : en
Publisher: CRC Press
Release Date : 2012-10-30
Echinoderms In A Changing World written by Craig Johnson and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-30 with Science categories.
Echinoderms are an ancient and diverse group of marine animals with a rich fossil record. They occur abundantly in all modern oceans and at all depths, where they contribute importantly to patterns in biodiversity and to the structure and functioning of marine systems. It is therefore vital to understand how they will respond to a rapidly cha
Fossils Phylogeny And Form
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Author : Jonathan M. Adrain
language : en
Publisher: Springer Science & Business Media
Release Date : 2002-01-31
Fossils Phylogeny And Form written by Jonathan M. Adrain and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-01-31 with Science categories.
Phylogenetic analysis and morphometrics have been developed by biologists into rigorous analytic tools for testing hypotheses about the relationships between groups of species. This book applies these tools to paleontological data. The fossil record is our one true chronicle of the history of life, preserving a set of macroevolutionary patterns; thus various hypotheses about evolutionary processes can be tested in the fossil record using phylogentic analysis and morphometrics. The first book of its type, Fossils, Phylogeny, and Form will be useful in evolutionary biology, paleontology, systematics, evolutionary development, theoretical biology, biogeography, and zoology. It will also provide a practical, researcher-friendly gateway into computer-based phylogenetics and morphometrics.
Virtual Paleontology
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Author : Jennifer E. Bauer
language : en
Publisher: Cambridge University Press
Release Date : 2021-09-30
Virtual Paleontology written by Jennifer E. Bauer and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-30 with Science categories.
Imaging and visualizing fossils in three dimensions with tomography is a powerful approach in paleontology. Here, the authors introduce select destructive and non-destructive tomographic techniques that are routinely applied to fossils and review how this work has improved our understanding of the anatomy, function, taphonomy, and phylogeny of fossil echinoderms. Building on this, this Element discusses how new imaging and computational methods have great promise for addressing long-standing paleobiological questions. Future efforts to improve the accessibility of the data underlying this work will be key for realizing the potential of this virtual world of paleontology.
Evolutionary Developmental Biology Of Invertebrates 6
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Author : Andreas Wanninger
language : en
Publisher: Springer
Release Date : 2015-08-11
Evolutionary Developmental Biology Of Invertebrates 6 written by Andreas Wanninger and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-08-11 with Science categories.
This multi-author, six-volume work summarizes our current knowledge on the developmental biology of all major invertebrate animal phyla. The main aspects of cleavage, embryogenesis, organogenesis and gene expression are discussed in an evolutionary framework. Each chapter presents an in-depth yet concise overview of both classical and recent literature, supplemented by numerous color illustrations and micrographs of a given animal group. The largely taxon-based chapters are supplemented by essays on topical aspects relevant to modern-day EvoDevo research such as regeneration, embryos in the fossil record, homology in the age of genomics and the role of EvoDevo in the context of reconstructing evolutionary and phylogenetic scenarios. A list of open questions at the end of each chapter may serve as a source of inspiration for the next generation of EvoDevo scientists. Evolutionary Developmental Biology of Invertebrates is a must-have for any scientist, teacher or student interested in developmental and evolutionary biology as well as in general invertebrate zoology. This chapter is dedicated to the Deuterostomia, comprising the Echinodermata and Hemichordata (usually grouped together as the Ambulacraria) as well as the Cephalochordata and the Tunicata.
From Assessing To Conserving Biodiversity
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Author : Elena Casetta
language : en
Publisher: Springer
Release Date : 2019-06-17
From Assessing To Conserving Biodiversity written by Elena Casetta and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-17 with Philosophy categories.
This open access book features essays written by philosophers, biologists, ecologists and conservation scientists facing the current biodiversity crisis. Despite increasing communication, accelerating policy and management responses, and notwithstanding improving ecosystem assessment and endangered species knowledge, conserving biodiversity continues to be more a concern than an accomplished task. Why is it so?The overexploitation of natural resources by our species is a frequently recognised factor, while the short-term economic interests of governments and stakeholders typically clash with the burdens that implementing conservation actions imply. But this is not the whole story. This book develops a different perspective on the problem by exploring the conceptual challenges and practical defiance posed by conserving biodiversity, namely: on the one hand, the difficulties in defining what biodiversity is and characterizing that “thing” to which the word ‘biodiversity’ refers to; on the other hand, the reasons why assessing biodiversity and putting in place effective conservation actions is arduous.