Comparative Physiology And Evolution Of Vision In Invertebrates
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Comparative Physiology And Evolution Of Vision In Invertebrates
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Author : H. Autrum
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Comparative Physiology And Evolution Of Vision In Invertebrates written by H. Autrum 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 2012-12-06 with Science categories.
In the comparative physiology of photoreception by the Protista and the invertebrates two aspects are emphasized: (1) the diversity of visual processes in these groups and (2) their bearing upon general mechanisms of photoreception. Invertebrates have evolved a far greater variety of adaptations than vertebrates modifications aiding survival in the remarkably different biotopes they occupy. The number of species in itself suggests this multiformity; each of them has peculiarities of its own, in morphology as well as in physiology and behavior. But these special adaptations are variations on a few great themes. Although the catalogue of invertebrate species is immense, the literature concerning them nearly rivals it in extent-even if one considers only that fraction dealing with visual physiology. Taxonomy proceeds by grouping the species, categorizing them in genera, families, orders, and progressively larger units. Similarly, comparative physiology aims at an analogous, more or less compre hensive, classification. This Part A of Volume VII/6, like Part B that follows it, emphasizes the broad questions that concern groups larger than the individual species; in some cases these questions have general applicability. The middle course between approaches that are too specialized and those that are too general is often elusive, but here we attempt to follow it. The vast number of special adaptations-probably, as we have said, as large as the number of species-is beyond the range even of a handbook.
Comparative Physiology And Evolution Of Vision In Invertebrates
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Author : Hansjochem Autrum
language : en
Publisher: Springer
Release Date : 1979
Comparative Physiology And Evolution Of Vision In Invertebrates written by Hansjochem Autrum and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Science categories.
Comparative Physiology And Evolution Of Vision In Invertebrates
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Author : M.F. Land
language : en
Publisher: Springer
Release Date : 1980-11-01
Comparative Physiology And Evolution Of Vision In Invertebrates written by M.F. Land and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980-11-01 with Medical categories.
Morphology and physiology are two fields which cannot be separated. This statement needs to be amplified: purely factual results of a morphological or physiological nature only have real value when they are gained in the context of certain guiding, embracing questions. By themselves they are mostly of little value, because only a guiding hypothesis or theory is of any importance. Equally, a physiological question will always raise questions as to the morphological substrate, and vice versa. Thus, Wiedemann's discovery, for instance, that the visual cells in each ommatidium of the dipterans have differing fields of vision has revived the question as to what the optical properties of individual visual cells, and the complete ommatidium, might be and how neighboring ommatidia interact. These questions in turn led to that of the morphological, neuronal wiring diagram of the visual cells in the optical ganglia. Within the realm of invertebrates, the morphological and physiological problems of visual perception have been resolved in very different ways on various levels, from the photo receptor to higher centers; despite many investigations, however, there remain unsolved problems. The first chapter of Vol. VII/6B deals with the neuroarchitecture in the visual system of two groups: crustaceans and insects. These systems are best known through recent investigations. The second chapter is devoted to the neural principles in the visual system of insects. It could not have been written without parallel research into morphology.
Comparative Physiology And Evolution Of Vision In Invertebrates
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Author : Hansjochem Autrum
language : en
Publisher:
Release Date : 1979
Comparative Physiology And Evolution Of Vision In Invertebrates written by Hansjochem Autrum and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Evolution (Biology) categories.
In the comparative physiology of photoreception by the Protista and the invertebrates two aspects are emphasized: (1) the diversity of visual processes in these groups and (2) their bearing upon general mechanisms of photoreception. Invertebrates have evolved a far greater variety of adaptations than vertebrates modifications aiding survival in the remarkably different biotopes they occupy. The number of species in itself suggests this multiformity; each of them has peculiarities of its own, in morphology as well as in physiology and behavior. But these special adaptations are variations on a few great themes. Although the catalogue of invertebrate species is immense, the literature concerning them nearly rivals it in extent-even if one considers only that fraction dealing with visual physiology. Taxonomy proceeds by grouping the species, categorizing them in genera, families, orders, and progressively larger units. Similarly, comparative physiology aims at an analogous, more or less compre hensive, classification. This Part A of Volume VII/6, like Part B that follows it, emphasizes the broad questions that concern groups larger than the individual species; in some cases these questions have general applicability. The middle course between approaches that are too specialized and those that are too general is often elusive, but here we attempt to follow it. The vast number of special adaptations-probably, as we have said, as large as the number of species-is beyond the range even of a handbook.
Comparative Physiology And Evolution Of Vision In Invertebrates
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Author : M.F. Land
language : en
Publisher: Springer
Release Date : 2012-08-14
Comparative Physiology And Evolution Of Vision In Invertebrates written by M.F. Land and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-08-14 with Medical categories.
Morphology and physiology are two fields which cannot be separated. This statement needs to be amplified: purely factual results of a morphological or physiological nature only have real value when they are gained in the context of certain guiding, embracing questions. By themselves they are mostly of little value, because only a guiding hypothesis or theory is of any importance. Equally, a physiological question will always raise questions as to the morphological substrate, and vice versa. Thus, Wiedemann's discovery, for instance, that the visual cells in each ommatidium of the dipterans have differing fields of vision has revived the question as to what the optical properties of individual visual cells, and the complete ommatidium, might be and how neighboring ommatidia interact. These questions in turn led to that of the morphological, neuronal wiring diagram of the visual cells in the optical ganglia. Within the realm of invertebrates, the morphological and physiological problems of visual perception have been resolved in very different ways on various levels, from the photo receptor to higher centers; despite many investigations, however, there remain unsolved problems. The first chapter of Vol. VII/6B deals with the neuroarchitecture in the visual system of two groups: crustaceans and insects. These systems are best known through recent investigations. The second chapter is devoted to the neural principles in the visual system of insects. It could not have been written without parallel research into morphology.
Comparative Physiology And Evolution Of Vision In Invertebrates
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Author : M.F. Land
language : en
Publisher: Springer
Release Date : 2012-02-12
Comparative Physiology And Evolution Of Vision In Invertebrates written by M.F. Land and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-02-12 with Medical categories.
Morphology and physiology are two fields which cannot be separated. This statement needs to be amplified: purely factual results of a morphological or physiological nature only have real value when they are gained in the context of certain guiding, embracing questions. By themselves they are mostly of little value, because only a guiding hypothesis or theory is of any importance. Equally, a physiological question will always raise questions as to the morphological substrate, and vice versa. Thus, Wiedemann's discovery, for instance, that the visual cells in each ommatidium of the dipterans have differing fields of vision has revived the question as to what the optical properties of individual visual cells, and the complete ommatidium, might be and how neighboring ommatidia interact. These questions in turn led to that of the morphological, neuronal wiring diagram of the visual cells in the optical ganglia. Within the realm of invertebrates, the morphological and physiological problems of visual perception have been resolved in very different ways on various levels, from the photo receptor to higher centers; despite many investigations, however, there remain unsolved problems. The first chapter of Vol. VII/6B deals with the neuroarchitecture in the visual system of two groups: crustaceans and insects. These systems are best known through recent investigations. The second chapter is devoted to the neural principles in the visual system of insects. It could not have been written without parallel research into morphology.
Comparative Physiology And Evolution Of Vision In Invertebrates
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Author : H. Autrum
language : en
Publisher: Springer
Release Date : 1981-08-01
Comparative Physiology And Evolution Of Vision In Invertebrates written by H. Autrum and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981-08-01 with Medical categories.
Volume VII, Part 6 brings to a conclusion the Handbook of Sensory Physiology, the publication of which has spanned 9 years. In the General Preface of Volume I it was stated that: "The purpose of this handbook is not encyclopedic completeness, nor the sort of brief summaries provided by periodic annual reviews. " The Editorial Board and the editors hope that this golden mean has been achieved: An absorbing, thorough, but nevertheless exemplary presentation should, with the aid of relevant examples, enable the reader to become accustomed with the numerous facets of the sensory system without sacrificing an overview of the subject. The main issues of sensory physiology were formulated in the nineteenth and early twentieth centuries by JOHANNES MULLER, H. VON HELMHOLTZ, E. HERING, S. EXNER, 1. VON KRIES, W. TRENDELENBURG, and E. D. ADRIAN, to name but a few. Modern development in the field has been characterized by interdisciplinary cooperation, the foundation for which was laid in the second half of the nineteenth century by VON HELMHOLTZ, EXNER, MAXWELL, and others. Progress made in bio chemistry, physics, mathematics, and information theory has not only made pos sible unanticipated refinement of methods of measurement; it has above all per mitted the transformation of mere hypotheses into established, accepted theories as well as revealing new problems. However, at the same time such development has, in recent decades, resulted in the literature becoming dispersed in specialist journals; consequently, it has grown increasingly difficult to survey.
Animal Eyes
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Author : Michael F. Land
language : en
Publisher: Oxford University Press, USA
Release Date : 2012-03
Animal Eyes written by Michael F. Land and has been published by Oxford University Press, USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-03 with Medical categories.
This book covers the way that all known types of eyes work, from their optics to the behaviour they guide. The ways that eyes sample the world in space and time are considered, and the evolutionary origins of eyes are discussed. This new edition incorporates discoveries made since the first edition published in 2001.
The Visual System In Vertebrates
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Author : F. Crescitelli
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-12-11
The Visual System In Vertebrates written by F. Crescitelli 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 2013-12-11 with Medical categories.
The vertebrate eye has been, and continues to be, an object of interest and of inquiry for biologists, physicists, chemists, psychologists, and others. Quite apart from its important role in the development of ophthalmology and related medical disciplines, the vertebrate eye is an exemplar of the ingenuity of living systems in adapting to the diverse and changing environments in which vertebrates have evolved. The wonder is not so much that the visual system, like other body systems, has been able to adapt in this way, but rather that these adaptations have taken such a variety of forms. In a previous volume in this series (VII/I) Eakin expressed admiration for the diversity of invertebrate photoreceptors. A comparable situation exists for the vertebrate eye as a whole and one object of this volume is to present to the reader the nature of this diversity. One result of this diversification of ocular structures and properties is that the experimental biologist has available a number of systems for study that are unique or especially favorable for the investigation of particular questions in visual science or neurobiology. This volume includes some examples of progress made by the use of such specially selected vertebrate systems. It is our hope that this comparative approach will continue to reveal new and useful preparations for the examination of important questions.
Invertebrate Photoreceptors
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Author : Jerome J. Wolken
language : en
Publisher: Academic Press
Release Date : 2013-10-22
Invertebrate Photoreceptors written by Jerome J. Wolken and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Science categories.
Invertebrate Photoreceptors: A Comparative Analysis covers the structure and pigment chemistry of invertebrate photoreceptors. The book discusses the photobehavior and photoreceptor systems of invertebrate animals; the protozoan photoreceptor; and the compound eye. The text also describes the crustacean and mollusc eyes; the vertebrate retinal photoreceptors; and the invertebrate eye and its visual pigments. The book concludes with discussions on primitive photoreceptors; spectral sensitivity, pigments, and color vision; and polarized light analysis. Biologists and people involved in the study of invertebrate photobiology will find the text invaluable.