Author: Helen Marguerite Webb
Publisher:
ISBN:
Category : Fiddler-crabs
Languages : en
Pages : 86

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Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 1100

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Author: H. Autrum
Publisher: Springer Science & Business Media
ISBN: 3642669999
Category : Science
Languages : en
Pages : 762

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Book Description
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.

Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 756

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Author: L.E. Scheving
Publisher: Springer Science & Business Media
ISBN: 9789028609402
Category : Science
Languages : en
Pages : 614

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Book Description
Proceedings of the NATO Advanced Study Institute, Hannover, Germany, July 13-25, 1979

Author: Talbot Waterman
Publisher: Elsevier
ISBN: 0323163327
Category : Science
Languages : en
Pages : 697

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Book Description
The Physiology of Crustacea, Volume II: Sense Organs, Integration, and Behavior focuses on the three components of self-regulation for crustaceans and examines the behavior that emerges therefrom. This book provides the physiology of the class Crustacea from a comparative point of view. Organized into chapters, this volume starts with an overview of the sensitivity to electromagnetic energy at wavelengths extending from the ultraviolet to the infrared, which is an important adaptive function in crustaceans. This text then explores the innervation of crustacean sensory hairs and describes the sensitivity among crustaceans to external changes in mechanical force by direct contact with solids or by fluid movement. Other chapters consider the two types of pigmentary effectors in crustaceans, namely, the chromatophores and the pigments of the compound eye. The final chapter deals with the four major categories in developing a comparative physiology. Physiologists, biochemists, and researchers will find this book useful.

Author: John Palmer
Publisher: Elsevier
ISBN: 0323152422
Category : Science
Languages : en
Pages : 394

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Book Description
An Introduction to Biological Rhythms provides an introduction to the subject of biological rhythms. The opening chapters present an overview of biological rhythms, their properties, and clock control, followed by a survey of rhythms in plants and animals. The subsequent chapters cover tidal rhythms and human rhythms; sun-compass, star-compass, and moon compass orientation of animals; the clock control of plant and animal photoperiodism; evidence for external timing of biological clocks; and models and mechanisms for endogenous timekeeping. The book also includes biographical sketches of Dr. Frank A. Brown, Jr., Morrison Professor of Biology at Northwestern University; and Dr. Leland N. Edmunds, Jr., Professor and Head of the Division of Biological Sciences at the Stony Brook campus of the State University of New York. This book is meant for the inquiring student seeking an introduction to the subject and for busy biologists in other fields who want to get a ""feel"" for the subject. It can also serve as a basic textbook for the existing biorhythms courses and act as a seed for the inauguration of new courses.

Author: M. Fingerman
Publisher: Elsevier
ISBN: 1483149617
Category : Science
Languages : en
Pages : 195

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Book Description
The Control of Chromatophores focuses on the color changes in animals, particularly among the invertebrates. Cells containing pigment that can disperse or concentrate, thereby changing the tint of the organism in which they lie, are known as chromatophores. Well-developed, functional chromatophore systems are common among cephalopods, crustaceans, and poikilotherm vertebrates. Rare instances are found among other groups such as annelids, echinoderms, and insects. After an introduction to the types, chemistry, and functional significance of chromatophores, this text concentrates on the chromatophores of crustaceans, insects, cephalopods, echinoderms, and vertebrates. This book is recommended for students and biologists conducting work on chromatophores and color changes.

Author: Jole Shackelford
Publisher: University of Pittsburgh Press
ISBN: 0822989050
Category : Science
Languages : en
Pages : 373

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Book Description
In three volumes, historian Jole Shackelford delineates the history of the study of biological rhythms—now widely known as chronobiology—from antiquity into the twentieth century. Perhaps the most well-known biological rhythm is the circadian rhythm, tied to the cycles of day and night and often referred to as the “body clock.” But there are many other biological rhythms, and although scientists and the natural philosophers who preceded them have long known about them, only in the past thirty years have a handful of pioneering scientists begun to study such rhythms in plants and animals seriously. Tracing the intellectual and institutional development of biological rhythm studies, Shackelford offers a meaningful, evidence-based account of a field that today holds great promise for applications in agriculture, health care, and public health. Volume 1 follows early biological observations and research, chiefly on plants; volume 2 turns to animal and human rhythms and the disciplinary contexts for chronobiological investigation; and volume 3 focuses primarily on twentieth-century researchers who modeled biological clocks and sought them out, including three molecular biologists whose work in determining clock mechanisms earned them a Nobel Prize in 2017.

Author: Kenneth Thimann
Publisher: Elsevier
ISBN: 0323159508
Category : Medical
Languages : en
Pages : 237

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Book Description
The Action of Hormones in Plants and Invertebrates focuses on the mechanisms of action of hormones in plants and invertebrates, including auxins, vitamins, steroids, and carotenoids. The book considers plant growth hormones, hormone-like substances in fungi, and hormones in insects and crustaceans. This volume is organized into four chapters and begins with a historical overview of the concept of hormones in plants, and then describes assay methods for auxins, along with auxin chemistry, transport, and role in tropisms. The discussion moves to other plant hormones such as wound hormones, flower-forming hormones, vitamins, steroids, carotenoids, rhizocaline, and caulocaline. The book then methodically explains insect hormones and their sources; the role of hormones in reproduction and postembryonic development; and hormone-induced color change in insects. This volume also offers information on the mode of action and physicochemical properties of insect hormones. The book concludes with a chapter on the biological effects of hormones on Crustacea, from sex characteristics to color change, molting and growth, retinal pigment movements, locomotion, and ovarian development. This book will be of interest to biologists, zoologists, botanists, and endocrinologists.