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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Vertebrates > General

Comparative Hemostasis in Vertebrates (Hardcover, 1996 ed.): James H. Lewis Comparative Hemostasis in Vertebrates (Hardcover, 1996 ed.)
James H. Lewis
R5,393 Discovery Miles 53 930 Ships in 18 - 22 working days

The author examines hemostasis in animals from all seven major vertebrate classes. Her research provides unique insights into the phylogenetic development of the various phases and components of hemostasis. This monograph is a valuable reference for students, researchers, and teachers of biology, zoology, veterinary science, and human medicine.

The Vertebrate Organizer (Hardcover, 2004 ed.): Horst Grunz The Vertebrate Organizer (Hardcover, 2004 ed.)
Horst Grunz
R5,228 Discovery Miles 52 280 Ships in 18 - 22 working days

The organizer area plays a central role in the formation of the embryonic axis and the central nervous system of all vertebrates including the human fetus. In The Vertebrate Organizer, outstanding molecular development biologists and embryologists report their latest approaches in this fascinating research area using different vertebrate model organisms. The presented data is of central importance for the understanding of early human embryogenesis.

Predation in Vertebrate Communities - The Bialowieza Primeval Forest as a Case Study (Hardcover, 1998 ed.): Bogumila... Predation in Vertebrate Communities - The Bialowieza Primeval Forest as a Case Study (Hardcover, 1998 ed.)
Bogumila Jedrzejewska, Wlodzimierz Jedrzejewski
R5,393 Discovery Miles 53 930 Ships in 18 - 22 working days

Predation, one of the most dramatic interactions in animals' lives, has long fascinated ecologists.
This volume presents carnivores, raptors and their prey in the complicated net of interrelationships, and shows them against the background of their biotic and abiotic settings. It is based on long-term research conducted in the best preserved woodland of Europe's temperate zone. The role of predation, whether limiting or regulating prey (ungulate, rodent, shrew, bird, and amphibian) populations, is quantified and compared to parts played by other factors: climate, food resources for prey, and availability of other potential resources for predators.

Mammals of the South-West Pacific (Hardcover): Tyrone Lavery, Tim Flannery Mammals of the South-West Pacific (Hardcover)
Tyrone Lavery, Tim Flannery
R3,892 Discovery Miles 38 920 Ships in 9 - 17 working days

Islands are special because they promote unique forms of life, and large proportions of the species they hold are found nowhere else on Earth. The mammals of the South-west Pacific are no exception, with many distributed only across single islands or archipelagos. Mammals of the South-west Pacific details the natural history for more than 180 species of marsupials, bats and rodents from 24 Pacific nations and territories. Species profiles are accompanied by distribution maps, illustrations and photographs – many being the first images ever captured for the species. By combining available knowledge with unpublished data collected over years of field work, Mammals of the South-west Pacific forms a definitive guide to the mammals from this region.

The Biology of Neuropeptide Y and Related Peptides (Hardcover, 1993 ed.): William F. Colmers, Claes Wahlestedt The Biology of Neuropeptide Y and Related Peptides (Hardcover, 1993 ed.)
William F. Colmers, Claes Wahlestedt
R4,338 Discovery Miles 43 380 Ships in 18 - 22 working days

Leading experts critically summarize the state of knowledge concerning the molecular, anatomical, physiological, and behavioral aspects of NPY and its congeners. Each article provides a comprehensive and in-depth survey, an overview of the role of NPY in the discipline covered, a discussion of the likely future direction that the field will take, and an up-to-date bibliography.
Chapters include a treatment of the evolution of the PP family of genes, the structure of the NPY gene, and the distribution of NPY on the cardiovascular system, actions of NPY on the electrophysiological properties of nerve cells, and the effects of NPY on feeding and behavior. The chapters are written in an accessible style and serve both as an introduction to the field and as an extensive and detailed treatment of the current state of knowledge.

My First Book of Frogs of Southern Africa (Paperback): Jeanne Tarrant My First Book of Frogs of Southern Africa (Paperback)
Jeanne Tarrant; Illustrated by Sally MacLarty
R180 R167 Discovery Miles 1 670 Save R13 (7%) Ships in 5 - 10 working days
Organization of the Early Vertebrate Embryo (Hardcover): Nikolas Zagris, Anne Marie Duprat, Antony Durston Organization of the Early Vertebrate Embryo (Hardcover)
Nikolas Zagris, Anne Marie Duprat, Antony Durston
R5,327 Discovery Miles 53 270 Ships in 18 - 22 working days

This book is the product of a NATO Advanced Study Institute of the same name, held at the Anargyrios and Korgialenios School on the island of Spetsai, Greece, in September 1994. The institute considered the molecular mechanisms which generate the body plan during vertebrate embryogenesis. The main topics discussed included: commitment and imprinting during germ cell differentiation; hierarchies of inductive cell interactions; the molecular functioning of Spemann's organizer and formation of embryonic axes; the extracellular matrix and the cytoskeleton in relation to morphogenesis and cell migration; neurogenesis and patterning of the neuraxis; the regulation of pattern formation by Hox genes and other transcription factors. This ASI was marked by a number of special features. An important one was that it brought together three different generations of embryologists: pioneers in classical embryology; scientists who are now leading the present molecular elucidation of vertebrate embryogenesis; and the promising younger ASI participants, some of whom are already making important contributions to this field. This aspect was very important in determining the character of the meeting. It exposed ambiguities in the classical embryological dogma and thus facilitated a subtle application of the recent molecular findings to classical problems. The second shining feature of this ASI was its evolutionary emphasis. The findings presented were obtained in four different vertebrate systems: mammals (the mouse), avians (the chicken), amphibians (Xenopus) and the teleost fishes (zebrafish).

Vertebrate Conservation and Biodiversity (Hardcover, 2007 ed.): David L. Hawksworth, Alan T. Bull Vertebrate Conservation and Biodiversity (Hardcover, 2007 ed.)
David L. Hawksworth, Alan T. Bull
R5,228 Discovery Miles 52 280 Ships in 18 - 22 working days

This book brings together a selection of original studies submitted to Biodiversity and Conservation that address the conservation and biodiversity of vertebrates - particularly those in terrestrial habitats. Vertebrates are, along with plants, the best-known and most intensively studied components of biological diversity on Earth. While studies on vertebrates can be expected to provide models for other groups, they can also pose their own particular problems due to their relative mobility as in some migratory birds. In addition, many mammals & fish are also subject to extensive human exploitation for food or sport. The contributions in this volume are drawn from a wide range of countries - from Australasia, East Africa, Europe, and North, Central and South America. Collectively they provide a snap-shot of the types of studies and actions being taken in vertebrate conservation.

Orientation and Navigation in Vertebrates (Hardcover, 2008 ed.): Andrii Rozhok Orientation and Navigation in Vertebrates (Hardcover, 2008 ed.)
Andrii Rozhok
R4,011 Discovery Miles 40 110 Ships in 18 - 22 working days

This book reviews all major models and hypotheses concerning the mechanisms supposed to underlie the process of navigation in vertebrates.

It covers data on all major model groups of vertebrates studied in the context of animal navigation, such as migratory birds, homing pigeons, sea turtles, subterranean mammals and some migratory fish species. Some other - less studied - groups, e.g., whales, have also been touched.

The first part of the book describes different sources of navigational information, with their specific navigational mechanisms known or supposed to be employed by animals for navigational goals. The second part discusses possible functions of these mechanisms in different vertebrates and in the context of different navigational tasks, ranging from short-range navigation, often performed by animals within as small an area as several square meters, to long-distance global-scale migrations performed by many birds and some sea turtles during their lifespan.

Paleoneurology of Amniotes - New Directions in the Study of Fossil Endocasts (Hardcover, 1st ed. 2023): Maria Teresa Dozo,... Paleoneurology of Amniotes - New Directions in the Study of Fossil Endocasts (Hardcover, 1st ed. 2023)
Maria Teresa Dozo, Ariana Paulina-Carabajal, Thomas E. Macrini, Stig Walsh
R4,701 Discovery Miles 47 010 Ships in 10 - 15 working days

This book presents a detailed examination of the current state of knowledge in the field of paleoneurology in the main amniote groups (reptiles, birds and mammals), and advances resulting from new non-invasive technologies. The study of fossil endocasts is an area of considerable current interest, and has long been central to our understanding of the evolution of the brain, development of senses and behavioral adaptations in diverse vertebrate groups and across vertebrates as a whole. Recent advances in non-invasive imaging have significantly increased the number of fossil taxa for which brain morphology is known, and it may now be possible to quantitatively analyze the relative size of brain regions. Providing a general overview of current perspectives and problems in evolutionary neuroanatomy, this book is intended for a wide range of readers, including undergraduate and graduate students, teachers, and anyone with a special interest in paleoneurology. It is also useful as supplementary reading for courses in digital anatomy, vertebrate comparative anatomy, computed morphometrics, paleontology, neurology and radiology as well as evolution programs

Infectious Diseases of Dromedary Camels - A Concise Guide (Hardcover, 1st ed. 2021): Abdelmalik I. Khalafalla, Mansour F.... Infectious Diseases of Dromedary Camels - A Concise Guide (Hardcover, 1st ed. 2021)
Abdelmalik I. Khalafalla, Mansour F. Hussein
R3,999 Discovery Miles 39 990 Ships in 10 - 15 working days

This book serves as a comprehensive yet concise reference guide reviewing the latest knowledge on bacterial, viral, fungal and parasitic infectious diseases of old world dromedary camels. Pathogen etiology, clinical manifestations and diagnostic techniques are provided for each pathogen and disease prevention and treatment strategies are discussed. Despite a steady increase in camel husbandry worldwide, the pathologies of camel diseases are still relatively under investigated in comparison to other livestock and companion animals. With an ongoing worldwide prevalence increase, infectious diseases are a constant threat to animal and human health. In recent years dromedary camels have become a focus of increasing public health interest since they have been considered the direct source of zoonotic transmission of MERS-CoV to humans. Along these lines, the book covers topics related to zoonotic infections associated with camels. This book offers a valuable source of information for veterinary clinicians, researchers, graduate students, veterinary technicians and interested laymen.

Somites in Developing Embryos (Hardcover, 1986 ed.): Ruth Bellairs Somites in Developing Embryos (Hardcover, 1986 ed.)
Ruth Bellairs
R4,188 Discovery Miles 41 880 Ships in 18 - 22 working days

Somite development is a unique and important topic; unique because somitic mesoderm is the first tissue to become segmented, important because the somites - once established - exert a profound influence on other seg mental structures which form later. Somite development is of interest at a number of levels. In one aspect, demarcation of a specific number of somites and size regulation, it is a particularly intriguing example of embryonic pattern formation, 'especially in vew of its possible relation to homoeobox-controlled segmentation in insects. At another level, somite development has long been studied by compara tive anatomists, but only recently has new light been thrown on such sub jects as segmentation of the head, proposed in the 18th century by Goethe and now a live issue for developmental biologists. Somit es are simple when they first appear, but very complex structures arise from them. These include the vertebrae and the axial and other muscles and consequently there is a wealth of morphogenetic problems to be explored. Sometimes their morphogenesis is disturbed, by genetic or environ mental factors, and there are many clinical conditions which arise as a result."

Vertebrate Myogenesis - Stem Cells and Precursors (Hardcover, 2015 ed.): Beate Brand-Saberi Vertebrate Myogenesis - Stem Cells and Precursors (Hardcover, 2015 ed.)
Beate Brand-Saberi
R4,027 Discovery Miles 40 270 Ships in 18 - 22 working days

This book addresses the differentiation control of skeletal muscle in different locations of the vertebrate body Particular attention is paid to novel regulatory molecules and signals as well as the heterogeneity of origin that have revealed a developmental overlap between skeletal and cardiac muscle. Different functional muscle groups are the product of the evolution of the vertebrate classes, making a phylogenetic comparison worthwhile for understanding the role of muscle stem cells and precursors in myogenesis. New insights into the hierarchy of transcription factors, particularly in the context of these different muscle groups have been gained from detailed investigations of the spatio-temporal and regulatory relationships derived from mouse and zebrafish genetics and avian microsurgery. Importantly, epigenetic mechanisms that have surfaced recently, in particular the role of MyomiRs, are also surveyed. With an eye to the human patient, encouraging results have been generated that identify parallels between embryonic myogenesis and regenerating myofibers due to common regulatory molecules. On the other hand, both processes differ considerably in quality and complexity of the processes employed. Interestingly, the heterogeneity in embryonic sources from which skeletal muscle groups in the vertebrate including the human body take origin is paralleled by differences in their susceptibility to particular muscle dystrophies as well as by the characteristics of the satellite cells involved in regeneration. The progress that has been made in the field of muscle stem cell biology, with special focus on the satellite cells, is outlined in this book by experts in the field. The authors review recent insights of the heterogeneous nature of these satellite cells regarding their gene signatures and regeneration potential. Furthermore, an improved understanding of muscle stem cells seems only possible when we study the impact of the cell environment on efficient stem cell replacement therapies for muscular dystrophies, putting embryological findings from different vertebrate classes and stem cell approaches into context.

Vertebrate Evolution - From Origins to Dinosaurs and Beyond (Paperback): Donald R. Prothero Vertebrate Evolution - From Origins to Dinosaurs and Beyond (Paperback)
Donald R. Prothero
R2,000 Discovery Miles 20 000 Ships in 9 - 17 working days

Provides an up-to-date account of evolution of vertebrates Includes numerous beautiful color reconstructions of prehistoric vertebrates Describes extinct vertebrates and their evolutionary history Discusses and illustrates the first vertebrates, as well as familiar lineages of fishes, amphibians, reptiles, birds, and mammals Reviews mass extinctions and other important events in the diversification of vertebrates

Coding Strategies in Vertebrate Acoustic Communication (Hardcover, 1st ed. 2020): Thierry Aubin, Nicolas Mathevon Coding Strategies in Vertebrate Acoustic Communication (Hardcover, 1st ed. 2020)
Thierry Aubin, Nicolas Mathevon
R4,730 Discovery Miles 47 300 Ships in 18 - 22 working days

Information is a core concept in animal communication: individuals routinely produce, acquire, process and store information, which provides the basis for their social life. This book focuses on how animal acoustic signals code information and how this coding can be shaped by various environmental and social constraints. Taking birds and mammals, including humans, as models, the authors explore such topics as communication strategies for "public" and "private" signaling, static and dynamic signaling, the diversity of coded information and the way information is decoded by the receiver. The book appeals to a wide audience, ranging from bioacousticians, ethologists and ecologists to evolutionary biologists. Intended for students and researchers alike, it promotes the idea that Shannon and Weaver's Mathematical Theory of Communication still represents a strong framework for understanding all aspects of the communication process, including its dynamic dimensions.

A Manual of British Vertebrate Animals - Or, Descriptions of All the Animals Belonging to the Classes Mammalia, Aves, Reptilia,... A Manual of British Vertebrate Animals - Or, Descriptions of All the Animals Belonging to the Classes Mammalia, Aves, Reptilia, Amphibia, and Pisces Which Have Been Hitherto Observed in the British Islands (Paperback)
Leonard Jenyns
R1,538 Discovery Miles 15 380 Ships in 10 - 15 working days

Widely respected by contemporaries for his work in natural history, Leonard Jenyns (1800 93) combined research with his duties as an Anglican clergyman. He published and lectured extensively on zoology and botany. Having recommended Darwin for the Beagle voyage, he later produced a paper, 'On the Variation of Species', which Darwin personally requested to see. This 1835 work catalogues five classes of vertebrates: mammals, birds, reptiles, amphibians and fish. Native, introduced and extinct species of the British Isles are included, with binomial and common names given, along with the dimensions and a description. An improvement on previous works which had overly relied on secondary sources, Jenyns's manual also provides information on location, diet and propagation. The catalogue testifies to the diligent work being carried out in natural history in the era prior to Darwin's revolution. Jenyns's Observations in Natural History (1846) and Observations in Meteorology (1858) are also reissued in this series."

Sex Determination in Vertebrates, Volume 134 (Hardcover): Blanche Capel Sex Determination in Vertebrates, Volume 134 (Hardcover)
Blanche Capel
R4,520 Discovery Miles 45 200 Ships in 10 - 15 working days

Sex Determination, Volume 134, the latest release in the Current Topics in Developmental Biology series, contains current reviews in the field of vertebrate sex determination. It covers molecular pathways of sex determination in genetic and environmental species and encompasses both sex determination of somatic lineages and commitment of germ cells to male or female fate. Chapters in this new release cover, amongst other topics, Mapping the Sox9 Enhancer Elements, Epigenetic Regulation of Sex Determination, Evolution and Management of Sex Chromosomes, Regulation of Germ Cell Sex Identity in Medaka, Control of Sex Determination in Zebrafish, Sexually Dimorphic Germ Cell Identity in Mammals, and more.

The Ecology of Browsing and Grazing II (Hardcover, 1st ed. 2019): Iain J. Gordon, Herbert H.T. Prins The Ecology of Browsing and Grazing II (Hardcover, 1st ed. 2019)
Iain J. Gordon, Herbert H.T. Prins
R2,401 Discovery Miles 24 010 Ships in 10 - 15 working days

Domestic and wild large mammalian herbivores occur on every continent except Antarctica. Through their browsing and grazing, they affect the structure and distribution not only of vegetation, but also of associated fauna. Consequently, the interactions between management practices and herbivore populations influence the biodiversity, structure and dynamics of ecosystems across vast expanses around the globe: signs of human activity that will be detectable for epochs to come. As a follow-up work to The Ecology of Browsing and Grazing, published in 2008, this new volume presents cutting-edge research on the behaviour, distribution, movement, and direct and indirect impacts of domestic and wild herbivores on terrestrial ecosystems. The respective chapters highlight strategic and applied research on cross-cutting issues in palaeontology and ecology, and provide concrete recommendations on the management of large herbivores to integrate production and conservation in terrestrial systems. Given its scope, the book will appeal to students, researchers and anyone interested in understanding these fascinating wild animals and how they shape the natural world.

Vertebrates and Invertebrates of European Cities:Selected Non-Avian Fauna (Hardcover, 1st ed. 2015): John G. Kelcey Vertebrates and Invertebrates of European Cities:Selected Non-Avian Fauna (Hardcover, 1st ed. 2015)
John G. Kelcey
R6,025 Discovery Miles 60 250 Ships in 18 - 22 working days

Vertebrates and Invertebrates of European Cities: Selected Non-Avian Fauna is the first known account of the vertebrate and invertebrate fauna of several cities in Europe and throughout the rest of the world. It excludes birds, which are described in a companion volume. The book contains eleven chapters about nine cities distributed throughout Europe. The chapters start with the history of the cities, which is followed by a description of the abiotic features such as geology, climate, air and water quality and then a brief account of the habitats. The vertebrate chapters describe the fish, amphibians, reptiles and mammals that are known to occur in each city together with their status and the habitats in which they occur, for example housing, industrial areas, parks, transport routes and rivers. The invertebrate chapters contain an account of the presence, status and habitats occupied by 6 - 8 of the major invertebrate groups including butterflies, dragonflies and damselflies, crickets and grasshoppers, beetles, molluscs, spiders, mites and springtails. This volume has been written and edited to be accessible to a wide range of interests and expertise including academic biologists, urban ecologists, landscape architects, planners, urban designers, undergraduates, other students and people with a general interest in natural history (especially cities) - not only in Europe but throughout the world.

Advances in Comparative Immunology (Hardcover, 1st ed. 2018): Edwin L. Cooper Advances in Comparative Immunology (Hardcover, 1st ed. 2018)
Edwin L. Cooper
R7,194 Discovery Miles 71 940 Ships in 18 - 22 working days

Immunologists, perhaps understandably, most often concentrate on the human immune system, an anthropocentric focus that has resulted in a dearth of information about the immune function of all other species within the animal kingdom. However, knowledge of animal immune function could help not only to better understand human immunology, but perhaps more importantly, it could help to treat and avoid the blights that affect animals, which consequently affect humans. Take for example the mass death of honeybees in recent years - their demise, resulting in much less pollination, poses a serious threat to numerous crops, and thus the food supply. There is a similar disappearance of frogs internationally, signaling ecological problems, among them fungal infections. This book aims to fill this void by describing and discussing what is known about non-human immunology. It covers various major animal phyla, its chapters organized in a progression from the simplest unicellular organisms to the most complex vertebrates, mammals. Chapters are written by experts, covering the latest findings and new research being conducted about each phylum. Edwin L. Cooper is a Distinguished Professor in the Laboratory of Comparative Immunology, Department of Neurobiology at UCLA's David Geffen School of Medicine.

The Animals of New Zealand - An Account of the Dominion's Air-Breathing Vertebrates (Paperback): Frederick Wollaston... The Animals of New Zealand - An Account of the Dominion's Air-Breathing Vertebrates (Paperback)
Frederick Wollaston Hutton, James Drummond
R1,181 Discovery Miles 11 810 Ships in 10 - 15 working days

Frederick Wollaston Hutton (1836-1905) was a geologist and a supporter of Darwinian theory. He emigrated to New Zealand in 1866, became Professor of Biology at Canterbury College, and won awards both in Britain and Australasia for his work on the natural history of New Zealand. He published scientific papers on biology and zoology as well as geology and, with James Drummond, wrote two popular works, Nature in New Zealand (1902) and The Animals of New Zealand (1904). The latter was extremely successful. It was revised and expanded the following year, and this fourth edition was published in 1923. The book focuses on native vertebrates, so the bulk of the content relates to birds, of which Hutton had published a catalogue in 1871. It also describes marine mammals, reptiles, and bats, and gives brief coverage to introduced species. There are 154 illustrations, and indexes of Maori, English and scientific names.

Concise Textbook of Large Animal Handling - A Practical Handbook (Hardcover): C. B. Chastain Concise Textbook of Large Animal Handling - A Practical Handbook (Hardcover)
C. B. Chastain
R3,357 Discovery Miles 33 570 Ships in 10 - 15 working days

This concise instructional guide condenses the most important aspects of large animal handling. It provides a portable, durable, beside-the-animal means of learning, as well as a convenient way to refresh on how to strive for safety and efficacy in animal handling techniques. It is ideal for use during veterinary placements in all settings from farm to laboratory, to riding school. The text covers: * Handler safety * Animal safety * Sanitation * Approach and capture * Routine handling and release procedures * Handling for medical procedures * Use and supply sources of restraint equipment. A Companion Website provides additional self-assessment questions and answers to aid learning Important reading for undergraduate veterinary students on EMS rotations, as well as practicing veterinarians, technicians and assistants, the book covers species encountered in farm, equine and laboratory settings.

The Teeth of Non-Mammalian Vertebrates (Hardcover): B. K. B Berkovitz, R. Peter Shellis The Teeth of Non-Mammalian Vertebrates (Hardcover)
B. K. B Berkovitz, R. Peter Shellis
R2,477 Discovery Miles 24 770 Ships in 10 - 15 working days

The Teeth of Non-Mammalian Vertebrates is the first comprehensive publication devoted to the teeth and dentitions of living fishes, amphibians and reptiles. The book presents a comprehensive survey of the amazing variety of tooth forms among non-mammalian vertebrates, based on descriptions of approximately 400 species belonging to about 160 families. The text is lavishly illustrated with more than 600 high-quality color and monochrome photographs of specimens gathered from top museums and research workers from around the world, supplemented by radiographs and micro-CT images. This stimulating work discusses the functional morphology of feeding, the attachment of teeth, and the relationship of tooth form to function, with each chapter accompanied by a comprehensive, up-to-date reference list. Following the descriptions of the teeth and dentitions in each class, four chapters review current topics with considerable research activity: tooth development; tooth replacement; and the structure, formation and evolution of the dental hard tissues. This timely book, authored by internationally recognized teachers and researchers in the field, also reflects the resurgence of interest in the dentitions of non-mammalian vertebrates as experimental systems to help understand genetic changes in evolution of teeth and jaws.

Vertebrate Photoreceptors - Functional Molecular Bases (Hardcover, 2014): Takahisa Furukawa, James B. Hurley, Satoru Kawamura Vertebrate Photoreceptors - Functional Molecular Bases (Hardcover, 2014)
Takahisa Furukawa, James B. Hurley, Satoru Kawamura
R5,125 R4,804 Discovery Miles 48 040 Save R321 (6%) Ships in 10 - 15 working days

This book provides a series of comprehensive views on various important aspects of vertebrate photoreceptors. The vertebrate retina is a tissue that provides unique experimental advantages to neuroscientists. Photoreceptor neurons are abundant in this tissue and they are readily identifiable and easily isolated. These features make them an outstanding model for studying neuronal mechanisms of signal transduction, adaptation, synaptic transmission, development, differentiation, diseases and regeneration. Thanks to recent advances in genetic analysis, it also is possible to link biochemical and physiological investigations to understand the molecular mechanisms of vertebrate photoreceptors within a functioning retina in a living animal.

Photoreceptors are the most deeply studied sensory receptor cells, but readers will find that many important questions remain. We still do not know how photoreceptors, visual pigments and their signaling pathways evolved, how they were generated and how they are maintained. This book will make clear what is known and what is not known. The chapters are selected from fields of studies that have contributed to a broad understanding of the birth, development, structure, function and death of photoreceptor neurons. The underlying common word in all of the chapters that is used to describe these mechanisms is molecule . Only with this word can we understand how these highly specific neurons function and survive. It is challenging for even the foremost researchers to cover all aspects of the subject. Understanding photoreceptors from several different points of view that share a molecular perspective will provide readers with a useful interdisciplinary perspective. "

Aquatic Animal Nutrition - Organic Macro- and Micro-Nutrients (Hardcover, 1st ed. 2022): Christian E.W. Steinberg Aquatic Animal Nutrition - Organic Macro- and Micro-Nutrients (Hardcover, 1st ed. 2022)
Christian E.W. Steinberg
R6,017 Discovery Miles 60 170 Ships in 10 - 15 working days

As sequel to Aquatic Animal Nutrition - A Mechanistic Perspective from Individuals to Generations, the present treatise on organic macro- and micronutrients continues the unique cross fertilization of aquatic ecology/ecophysiology and aquaculture. This treatise considers proteins and their constituents, carbohydrates from mono- to polysaccharides, fatty acids from free acids to fat, and waxes. It becomes obvious that these organic nutrients are more than only simple fuel for the metabolism of animals; rather, their constituents have messenger and controlling function for the actual consuming individual and even for succeeding generations. This aspect will become particularly clear by putting the organisms under consideration back into their ecosystem with their interrelationships and interdependencies. Furthermore, micronutrients, such as vitamins and nucleotides as well as exogenous enzymes, are in the focus of this volume with known and still-to-be-discovered controlling physiological and biomolecular functions. Aquatic Animal Nutrition - Organic Macro and Micro Nutrients addresses se veral gaps in nutritional research and practice. One major gap is the lack of com mon research standards and protocols for nutritional studies so that virtually incomparable approaches have to be compared. This applies also to the studied animals, since most approaches disregard intraspecific variabilities and the existence of epimutations in farmed individuals. Furthermore, recalling the Mechanistic Perspective from Individuals to Generations, dietary benefits and deficiencies have effects on succeeding generations. In most studies, this long-term and sustainable aspect is overruled by pure short-term production aspects. By comparing nutritional behavior and success of fishes and invertebrates, Aqua tic Animal Nutrition points out different metabolic pathways in these animal groups and discusses how, for instance, fishes would benefit when having some successful metabolic pathway of invertebrates. Application of novel ge ne tic techniques will help turn this vision into reality. However, a widely missing link in the current nutritional research is epigenetics regarding transgenerational heritages of acquired morphological and physiological properties. To in crease public acceptance, nutritional optimization of farmed animals based on this mechanism, rather than genetical engineering, appears promising.

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