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

Fish Histology - From Cells to Organs (Hardcover, 2nd edition): Doaa M. Mokhtar Fish Histology - From Cells to Organs (Hardcover, 2nd edition)
Doaa M. Mokhtar
R4,301 Discovery Miles 43 010 Ships in 10 - 15 working days

Fish Histology: From Cells to Organs, 2nd Edition provides up-to-date information that emphasizes the relationships and concepts by which cell and tissue structures of fish are inextricably linked with their function. The book also describes the most recent development in the sciences of fish histology. The first edition of this book was well received, and this updated and improved edition includes five brand new chapters on the skeleton of fishes, gas bladder and gas gland, endocrine system, nervous system, and sensory system. Various staining procedures were used in the second edition to enhance contrasts in samples. As a further aid to learning, many new immunohistochemical and ultrastructural images illustrate the text along with a particular emphasis on tables that summarize the morphologic and functional features of cells, tissues, and organs. The text and images for this edition have been updated with the most current information available at the time of publication. The volume begins with a concise introduction into the histological techniques for fish sampling, followed by an accurate up-to-date description of fish tissues. A chapter is devoted to each organ and organ systems in the fish body as well. In addition, the book includes over 270 diagrams, photos, and illustrations to elucidate the structure of organs and to enhance the usefulness of the text. Key features: Provides valuable information on the histology of many species of teleosts Explores cells at electron microscopic levels Illustrates the characteristics of tissues and organs of fish with over 270 images, most in color Highlights advances, trends, and applications in the modern histological techniques and tissue preparations Focuses on reproductive organs to provide new knowledge on reproductive biology Includes new five chapters, on the Skeleton of Fish, Gas Bladder and Gas Glands, Endocrine System, Nervous System, and Sensory System, for a more complete coverage of Fish Histology. The author has organized the book to present the information in a user-friendly way to facilitate learning and comprehension. The volume is designed for use by students as well as researchers, biologists, ichthyologists, fish farmers, veterinarians working in fisheries and, of course, by comparative histologists who want to learn more about the fish world.

Red Panda - Biology and Conservation of the First Panda (Hardcover, 2nd edition): Angela R Glatston Red Panda - Biology and Conservation of the First Panda (Hardcover, 2nd edition)
Angela R Glatston
R3,064 Discovery Miles 30 640 Ships in 10 - 15 working days

Red Panda: Biology and Conservation of the First Panda, Second Edition, provides the most up-to-date research, data, and conservation solutions for the red pandas, Ailurus species. Since the publication of the previous edition in 2010, the International Union for Conservation of Nature (IUCN) updated the threat level of red pandas, and they are now considered to be endangered. This latest edition is updated to provide an in-depth look at the scientific and conservation-based issues urgently facing the red panda today. Led by one of the world's leading authorities and advocates for red panda conservation, this new edition includes data from the Population and Habitat Viability (PHVA) workshops conducted in three of the species' range states, Nepal, China, and India; these workshops utilized firsthand information on the decrease of red panda populations due to factors including deforestation, illegal pet trade, human population growth, and climate change. This book also includes updated information from the first edition on reproduction, anatomy, veterinary care, zoo management, and fossil history.

Birds, Beasts, and Relatives (Paperback): Gerald Durrell Birds, Beasts, and Relatives (Paperback)
Gerald Durrell
R295 R263 Discovery Miles 2 630 Save R32 (11%) Ships in 5 - 10 working days

‘Another tiger-golden day lay ahead of us. It was as though England had never really existed’

The Durrell clan’s escapades on their Greek island home resume with the second volume of the Corfu Trilogy. Budding zoologist Gerald continues to explore the natural wonders around him, enjoying a night fishing trip, receiving a donkey as a birthday present and accidentally bringing a bear home for tea. Here too are more stories of the eccentric creatures he calls his family, including Margo’s ill-advised foray into spiritualism and what becomes known as ‘Mother’s Great Romance’. Ending as the Second World War is declared, Birds, Beasts and Relatives is an enchanting return to a magical place.

Biology and Ecology of Edible Marine Bivalve Molluscs (Paperback): Ramasamy Santhanam Biology and Ecology of Edible Marine Bivalve Molluscs (Paperback)
Ramasamy Santhanam
R2,492 Discovery Miles 24 920 Ships in 10 - 15 working days

This comprehensive volume provides a plethora of first-hand information on the diversity, biology, and ecology of edible marine bivalve molluscs. It covers the biology of edible marine bivalves; profiles about 180 species, providing information on their habitat, distribution, morphology, food and feeding, reproduction, conservation status, etc.; discusses their nutritional values; examines their pharmaceutical value; and looks at their diseases and parasites. This abundance of knowledge is presented in an easy-to-read style with informative illustrations. Marine bivalve molluscs play important roles in the marine ecosystems by filtering water and serving as habitat and prey for a variety of sea life. This diverse group of species, estimated at around 9,200, inhabits virtually the entire world's oceans, from the balmy tropics to the sub-zero Arctic, and from deep oceans to sandy and rocky shorelines. Among the marine bivalves, a total of 180 species (including mussels, oysters, scallops, cockles, and clams) have long been a part of the diet of coastal human populations. Many species of marine bivalves are also commercially important for other purposes, such as pearls and shells for jewelry and decoration. The volume, part of the Biology and Ecology of Marine Life book series, will be of great use to students and researchers in fisheries science, marine biology, aquatic biology, and zoology.

Animals in Human Histories - The Mirror of Nature and Culture (Hardcover): Mary J. Henninger-Voss Animals in Human Histories - The Mirror of Nature and Culture (Hardcover)
Mary J. Henninger-Voss; Contributions by Andrew Isenberg, Edward I. Steinhart, Harriet Ritvo, Jacqueline Milliet, …
R4,786 Discovery Miles 47 860 Ships in 18 - 22 working days

An exploration of the various ways animals and their relations to humans have been depicted throughout the ages. This volume delves into the realm between representative images and real animals. It is a historical inquiry into human interaction with the animals we eat, pamper, experiment on, and imagine, as they have been variously domesticated, slaughtered, loved, studied, and made into icons of human invention. Common assumptions and experiences with animals have entered into the functioning and conceptualizing of life, yet these are historically and culturally contingent. The essays in this volume unveil the ways in which human-animal relationships reveal the interhuman structures of the cultures in which they are formed. By using animals as a lens, they refocus our awareness of the ways in which humans have allotted resources, gathered knowledge, and structured families. The treatment of animals is often a guide to the treatment of people within a society, while the perceived 'stewardship' of humans over animals has helped shape the broader environment that both human and nonhuman animals share. The authors tackle their subject from a variety of levels -- popular, scientific, and economic. The essays explore the vast borderland between human ideas and physical nature regarding animal representation. Contributors include Richard W. Burkhardt, Jr., Jonathan Burt, Ken C. Erickson, Katherine C. Grier, Richard C. Hoffmann, Andrew C. Isenberg, JacquelineMilliet, John Solomon Otto, Karen A. Rader, Harriet Ritvo, Nigel Rothfels, Kenneth J. Shapiro, and Edward I. Steinhart. Mary Henninger-Voss is an Associate of the Shelby Cullom Davis Center for Historical Studies, Princeton University.

Reproduction and Development in Minor Phyla (Hardcover): T. J Pandian Reproduction and Development in Minor Phyla (Hardcover)
T. J Pandian
R4,086 Discovery Miles 40 860 Ships in 10 - 15 working days

The 26 recognized minor phyla comprise aberrant clades, as most of them terminate as blind offshoots. Untied from the discussion on their phylogenesis of minor phyla, this book is largely devoted, for the first time, to aspects of reproduction and development in minor phyletics. The minor phyla are not as speciose (1,795 species/phylum) as the major phyla (157,066 species/phylum) are. The accumulation of deleterious genes causes inbreeding depression among progenies arising from parthenogenesis, clonal multiplication and selfing hermaphrodites. The reason for the limited species diversity in minor phyla is traced to (i) eutelism in 65.7% of minor phyletics and (ii) existence of 21.6% clonals, (iii) 6.4% parthenogens and (iv) 1.2% selfing hermaphroditism. Gonochorism obligately requires motility to search for a mate. The combination of low motility and gonochorism from Placozoa to hemocoelomatic minor phyla has limited diversity to < 1,000 species. Over 19% of minor phyletics are hermaphrodites. With the need to manifest and maintain dual sexuality, fecundity of hermaphrodites may be reduced to 50% of that in gonochores. Adopting an array of strategies, < 100 hermaphrodites are selfers. In eutelics, mitotic division is ceased in somatic cells after hatching. For the first time, the prevalence of eutelism has been brought to light in numbers of all the six pseudocoelomate phyla and priapulids. Eutelism limits fecundity to 30-300 eggs in free-living pseudocoelomates, priapulids and possibly other hemocoelomates. In them, sperm production is less than that of egg production; as a result, a large fraction of their eggs is sterile. With a high proportion of non-eutelic gametic cells (35%), Nematoda and possibly Nematomorpha and Acanthocephala are more fecund than rotifers, in which the proportion is 15%. Briefly, the reasons for the limited species diversity in minor phyletics are traced to eutelism, parthenogenesis and clonal multiplication. Surprisingly, parthenogenesis and clonal multiplication mutually eliminate each other. This is also true of hermaphroditism and parthenogenesis. However, clonal multiplication is prevalent from structurally simplest Placozoa to the most complex Ascidiacea, except in pseudocoelomates and hemocoelomates. A limited number of cells and cell types, and the consequent structural simplicity facilitate manifestation of parthenogenesis in pseudocoelomates and parasitism in Mesozoa, Myxozoa, 59% of Nematoda, Nematomorpha, Acanthocephala and Pentastomida. Despite hermaphroditism, Bryozoa (5,700 species) and Ascidiacea (3,000 species) are speciose among minor phyla. For the first time, the importance of fusion of fragments or colonies - an event equivalent to gamete fusion at fertilization - is recognized as a source of new gene combination. Besides, the colonies in these minor phyla degenerate and regenerate more or less regularly. Only the fittest degenerated colonies may be rejuvenated and regenerated.

Basics of Wildlife Health Care and Management (Hardcover): Rajesh Jani Basics of Wildlife Health Care and Management (Hardcover)
Rajesh Jani
R3,506 Discovery Miles 35 060 Ships in 10 - 15 working days

The book provides basic understanding of the various topics of wildlife which will be useful for biologist, zoologist, veterinarians working in forest ,zoos or at field level where they use to get wild animals for post mortem or for treatment. It also provides helpful information to the forest officers, zoo managers and protected area managers for critical care management and for doing needful things before approaching a veterinarian to save the life of animal or to collect biological material useful for diagnosis. Note: T&F does not sell or distribute the Hardback in India, Pakistan, Nepal, Bhutan, Bangladesh and Sri Lanka.

Ethology and Behavioral Ecology of Phocids (Hardcover, 1st ed. 2022): Daniel P. Costa, Elizabeth A. Mchuron Ethology and Behavioral Ecology of Phocids (Hardcover, 1st ed. 2022)
Daniel P. Costa, Elizabeth A. Mchuron
R3,390 Discovery Miles 33 900 Ships in 10 - 15 working days

Phocid (or earless or true) seals are ecologically diverse, occupying habitats from the tropics to the poles in marine and freshwater and feeding on anything from tiny zooplankton to other marine mammals. There are 18 species of phocid seals, the smallest species (ringed seal) is more than 20 times smaller than the largest (southern elephant seal), with marked sexual dimorphism present in some species. This book examines the behavior, ecology, and physiology that allow phocid seals to inhabit such a wide range of habitats. The book is composed of 16 chapters written by 37 authors from 8 countries. The book first describes the general patterns of phocid behavior, followed by descriptions of what is known about well-studied species. We have taken a holistic approach, focusing not only on the behaviors themselves but also on the factors that constrain the expression of behavior and the proximate mechanisms driving behavior. In many cases, the chapters represent collaborations between well-established researchers and early-mid career individuals who bring new perspectives to help carry the field of phocid behavioral ecology well into the future.

Enlightenment Travel and British Identities - Thomas Pennant's Tours of Scotland and Wales (Hardcover): Mary-Ann... Enlightenment Travel and British Identities - Thomas Pennant's Tours of Scotland and Wales (Hardcover)
Mary-Ann Constantine, Nigel Leask
R1,948 Discovery Miles 19 480 Ships in 10 - 15 working days
Canine Olfaction Science and Law - Advances in Forensic Science, Medicine, Conservation, and Environmental Remediation... Canine Olfaction Science and Law - Advances in Forensic Science, Medicine, Conservation, and Environmental Remediation (Paperback)
Tadeusz Jezierski, John Ensminger, L. E. Papet
R2,238 Discovery Miles 22 380 Ships in 10 - 15 working days

The value of the canine nose is well-documented, and working dogs are being utilized for their olfactory skills in an increasing number of fields. Not only are dogs used by police, security, and the military, but they are also now used in forensic science, in medical detection of disease, in calculating population trends of endangered species and eradicating invasive species in protected environments, and in identifying infestations and chemical contaminants. Edited and contributed to by eminent scholars, Canine Olfaction Science and Law: Advances in Forensic Science, Medicine, Conservation, and Environmental Remediation takes a systematic scientific approach to canine olfaction. It includes work from scientists working in pure and applied disciplines, trainers and handlers who have trained and deployed detection dogs, and lawyers who have evaluated evidence produced with the aid of detection and scent identification dogs. The book is divided into six sections covering The anatomy, genetics, neurology, and evolution of canine olfaction as well as diseases affecting it The chemistry and aerodynamics of odors Behavior, learning, and training Uses of canine olfaction in forensics and law Uses in conservation and remediation Uses in detection of diseases and medical conditions The various contributors describe cutting edge research, some conclusions of which are the subject of vigorous debates between various laboratories and researchers. The editors have added cross-references so that readers can consider the different perspectives that are currently being advanced and understand where consensus is being built and where more research needs to be done. A useful practical reference, Canine Olfaction Science and Law provides a wealth of information beneficial to a wide range of disciplines. It aids trainers and handlers of detection dogs as well as various professionals in healthcare, law enforcement, forensic science, and environmental conservation to gain a better understanding of the remarkable power of the canine nose while encouraging further advances in applications.

Animals, Anthropomorphism and Mediated Encounters (Paperback): Claire Parkinson Animals, Anthropomorphism and Mediated Encounters (Paperback)
Claire Parkinson
R1,427 Discovery Miles 14 270 Ships in 10 - 15 working days

This book critically investigates the pervasiveness of anthropomorphised animals in popular culture. Anthropomorphism in popular visual media has long been denounced for being unsophisticated or emotionally manipulative. It is often criticised for over-expressing similarities between humans and other animals. This book focuses on everyday encounters with visual representations of anthropomorphised animals and considers how attributing other animals with humanlike qualities speaks to a complex set of power relations. Through a series of case studies, it explores how anthropomorphism is produced and circulated and proposes that it can serve to create both misunderstandings and empathetic connections between humans and other animals. This book will appeal to academics and students interested in visual media, animal studies, sociology and cultural studies.

Biogeography and Evolution in New Zealand (Paperback): Michael Heads Biogeography and Evolution in New Zealand (Paperback)
Michael Heads
R1,717 Discovery Miles 17 170 Ships in 10 - 15 working days

Biogeography and Evolution in New Zealand provides the first in-depth treatment of the biogeography of New Zealand, a region that has been a place of long-enduring interest to ecologists, evolutionary scientists, geographers, geologists, and scientists in related disciplines. It serves as a key addition to the contemporary discussion on regionalization-how is New Zealand different from the rest of the world? With what other areas does it share its geology, history, and biota? Do new molecular phylogenies show that New Zealand may be seen as a biological 'parallel universe' within global evolution?

Human and Nonhuman Bone Identification - A Color Atlas (Paperback): Diane L. France Human and Nonhuman Bone Identification - A Color Atlas (Paperback)
Diane L. France
R4,133 Discovery Miles 41 330 Ships in 9 - 17 working days

When a bone of unknown origin is found at a location, forensic implications arise immediately. Is this bone human, and if so, is it evidence of a murder? Human and Non-Human Bone Identification: A Color Atlas presents a comprehensive handbook of photographs and other information essential for law enforcement and forensic anthropologists when examining skeletal remains and determining species and body parts. Presenting over 3000 color photographs, this atlas is a practical comparative guide to the differences among species for nearly all bones in the body. Useful in either the laboratory or the field, it features images of the types of bones that are most commonly discovered, and provides annotations pointing out salient features. The book begins with a section on general osteology and explains the major anatomical differences between humans and other animals. It compares human and non-human bones, categorized by type of bone, and includes most of the major bones in humans and non-humans. The third section discusses non-human skeletal elements, categorized by species, and explores numerous skeletal elements within those species. This book is also available on a fully searchable DVD: Catalog no. 62964 Includes Bones from the Following Species! Moose Elk Deer Bison Cow Antelope Mountain Sheep Domestic Sheep Llama Horse Bear Wolf Coyote Domestic dog Mountain lion Bobcat Raccoon Badger Skunk River Otter Beaver Porcupine Marmot Prairie dog Rabbit Norway rat Squirrel Armadillo Opossum Vampire bat Seal Written by Diane L. France, one of the most respected forensic anthropologists in the world, this supremely organized atlas helps those tasked with bone identification to quickly and efficiently determine the origin of discovered remains and plan the appropriate course of action.

Dictionnaire Des Sciences Naturelles - Dans Lequel on Traite Methodiquement Des Differens Etres De La Nature, Consideres Soit... Dictionnaire Des Sciences Naturelles - Dans Lequel on Traite Methodiquement Des Differens Etres De La Nature, Consideres Soit En Eux-Memes, D'apres L'etAt Actuel De Nos Connoissances, Soit Relativement A L'utilite Qu'en Peuvent Retirer La Medecine, L'agri (French, Paperback)
Frederic Cuvier
R818 Discovery Miles 8 180 Ships in 10 - 15 working days
Traditional Ecological Knowledge and Global Pandemics - Biodiversity and Planetary Health Beyond Covid-19 (Hardcover): Ngozi... Traditional Ecological Knowledge and Global Pandemics - Biodiversity and Planetary Health Beyond Covid-19 (Hardcover)
Ngozi Finette Unuigbe
R1,649 Discovery Miles 16 490 Ships in 10 - 15 working days

This book demonstrates the importance and potential role of Traditional Ecological Knowledge in foreseeing and curbing future global pandemics. The reduction of species diversity has increased the risk of global pandemics and it is therefore not only imperative to articulate and disseminate knowledge on the linkages between human activities and the transmission of viruses to humans, but also to create policy pathways for operationalizing that knowledge to help solve future problems. Although this book has been prompted by the COVID-19 pandemic, it lays a policy foundation for the effective management or possible prevention of similar pandemics in the future. One effective way of establishing this linkage with a view to promoting planet health is by understanding the traditional ecological knowledge of indigenous peoples with a view to demonstrating the significant impact it has on keeping nature intact. This book argues for the deployment of traditional ecological knowledge for land use management in the preservation of biodiversity as a means for effectively managing the transmission of viruses from animals to humans and ensuring planetary health. The book is not projecting traditional ecological knowledge as a panacea to pandemics but rather accentuating its critical role in the effective mitigation of future pandemics. This book will be of great interest to students and scholars of traditional ecological knowledge, indigenous studies, animal ecology, environmental ethics and environmental studies more broadly.

Handbook of Laboratory Animal Science - Essential Principles and Practices (Hardcover, 4th edition): Jann Hau, Steven J.... Handbook of Laboratory Animal Science - Essential Principles and Practices (Hardcover, 4th edition)
Jann Hau, Steven J. Schapiro
R7,212 Discovery Miles 72 120 Ships in 10 - 15 working days

Building upon the success of previous editions of the bestselling Handbook of Laboratory Animal Science, first published in 1994, this latest revision combines all three volumes in one definitive guide. It covers the essential principles and practices of Laboratory Animal Science as well as selected animal models in scientific disciplines where much progress has been made in recent years. Each individual chapter focuses on an important subdiscipline of laboratory animal science, and the chapters can be read and used as stand-alone texts, with only limited necessity to consult other chapters for information. With new contributors at the forefront of their fields, the book reflects the scientific and technological advances of the past decade. It also responds to advances in our understanding of animal behavior, emphasizing the importance of implementing the three Rs: replacing live animals with alternative methods, reducing the number of animals used, and refining techniques to minimize animal discomfort. This fourth edition will be useful all over the world as a textbook for laboratory animal science courses for postgraduate and undergraduate students and as a handbook for scientists who work with animals in their research, for university veterinarians, and for other specialists in laboratory animal science.

Species - The Evolution of the Idea, Second Edition (Paperback): John S. Wilkins Species - The Evolution of the Idea, Second Edition (Paperback)
John S. Wilkins
R1,675 Discovery Miles 16 750 Ships in 10 - 15 working days

Over time the complex idea of "species" has evolved, yet its meaning is far from resolved. This comprehensive work is a fresh look at an idea central to the field of biology by tracing its history from antiquity to today. Species is a benchmark exploration and clarification of a concept fundamental to the past, present, and future of the natural sciences. In this edition, a section is added on the debate over species since the time of the New Synthesis, and brings the book up to date. A section on recent philosophical debates over species has also been added. This edition is better suited non-specialists in philosophy, so that it will be of greater use for scientists wishing to understand how the notion came to be that living organisms form species. Key Selling Features: Covers the philosophical and historical development of the concept of "species" Documents that variation was recognized by pre-Darwinian scholars Includes a section on the debates since the time of the New Synthesis Better suited to non-philosophers

Some Assembly Required - Decoding Four Billion Years of Life, from Ancient Fossils to DNA (Paperback): Neil Shubin Some Assembly Required - Decoding Four Billion Years of Life, from Ancient Fossils to DNA (Paperback)
Neil Shubin
R309 Discovery Miles 3 090 Ships in 4 - 6 working days

'Intimate and thoughtful... Exciting... [A] sweeping evolutionary history.' Science The author of the bestselling Your Inner Fish gives us a brilliant, up-to-date account of the great transformations in the history of life on Earth. This is a story full of surprises. If you think that feathers arose to help animals fly, or lungs to help them walk on land, you'd be in good company. You'd also be entirely wrong. Neil Shubin delves deep into the mystery of life, the ongoing revolutions in our understanding of how we got here, and brings us closer to answering one of the great questions - was life on earth inevitable...or was it all an accident?

Nociceptin Opioid, Volume 97 (Hardcover): Gerald Litwack Nociceptin Opioid, Volume 97 (Hardcover)
Gerald Litwack
R4,521 Discovery Miles 45 210 Ships in 10 - 15 working days

First published in 1943, Vitamins and Hormones is the longest-running serial published by Academic Press. The Series provides up-to-date information on vitamin and hormone research spanning data from molecular biology to the clinic. A volume can focus on a single molecule or on a disease that is related to vitamins or hormones. A hormone is interpreted broadly so that related substances, such as transmitters, cytokines, growth factors and others can be reviewed. This volume focuses on nociceptin opioid.

Biology of Parrotfishes (Paperback): Andrew S. Hoey, Roberta M. Bonaldo Biology of Parrotfishes (Paperback)
Andrew S. Hoey, Roberta M. Bonaldo
R1,578 Discovery Miles 15 780 Ships in 10 - 15 working days

Parrotfish are found on almost every coral reef in the world. This ubiquity and uniqueness of their feeding action make them one of the most important groups of fishes within coral reef ecosystems. But why, exactly, are parrotfish so important to reefs? Can the evolution of a particular jaw morphology and feeding action really have had such a large impact on the health and functioning of the world's coral reefs? This book introduces the reader to this fascinating group of fishes (Labridae, Scarinae), from the morphological innovation of a jaw that has the power to bite through solid calcium carbonate, to the threats currently faced by parrotfish populations around the world. It contains new insights into their diet and food processing ability, and lifehistories, and concludes with an overview of emerging and future research directions.

Handbook of Australasian Biogeography (Paperback): Malte C. Ebach Handbook of Australasian Biogeography (Paperback)
Malte C. Ebach
R1,574 Discovery Miles 15 740 Ships in 10 - 15 working days

The Handbook of Australasian Biogeography is the most comprehensive overview of the biogeography of Australasian plants, fungi and animal taxa in a single volume. This volume is unique in its coverage of marine, freshwater, terrestrial, and subterranean taxa. It is an essential publication for anyone studying or researching Australasian biogeography. The book contains biogeographic reviews of all major plant, animal and fungal groups in Australasia by experts in the field, including a strong emphasis on invertebrates, algae, fungi and subterranean taxa. It discusses how Australasia is different from the rest of the world and what other areas share its history and biota.

Evolution by Natural Selection - Confidence, Evidence and the Gap (Paperback): Michaelis Michael Evolution by Natural Selection - Confidence, Evidence and the Gap (Paperback)
Michaelis Michael
R1,544 Discovery Miles 15 440 Ships in 10 - 15 working days

A persistent argument among evolutionary biologists and philosophers revolves around the nature of natural selection. Evolution by Natural Selection: Confidence, Evidence and the Gap explores this argument by using a theory of persistence as an intentional foil to examine ways in which similar theories can be misunderstood. It discusses Charles Darwin's theory of natural selection, including what the theory says, what it aims to explain, and how it manages to explain natural selection. Darwin's theory is so familiar today that it feels universally understood. However, the fact that there are so divergent views about the theory means that not everyone who thinks he or she understands it can be right. This book describes the history of evolutionary theory as a sequence of theoretical developments, not all of which can be considered improvements. In particular, it suggests that some attempts to use the theory of natural selection end up reshaping the concepts involved so that they can be applied more easily to the world. As a result, the theory is stripped of some of its explanatory power and becomes detached from the empiricism that good scientific examination requires. With these issues in mind, Evolution by Natural Selection shows there are aspects of the theory of natural selection that are not totally understood. These misunderstandings create problems in uses of the theory. At a time when selectionist explanations are being brought forward to explain an ever-widening range of phenomena, this book analyzes the explanatory structure of Darwin's theory. It takes a much-needed thoughtful look into the working parts of the theory of natural selection to provide better understanding of the theory and its role in contemporary science and life.

Natural Histroy Of West Indian Reptiles And Amphibians (Hardcover): Natural Histroy Of West Indian Reptiles And Amphibians (Hardcover)
R2,255 Discovery Miles 22 550 Ships in 18 - 22 working days

"The reference source that biologists interested in West Indian herpetofauna have been waiting for."--Steven Reichling, curator, Memphis Zoo "A state-of-the-art compendium. The West Indies is one of the hottest of the world's biodiversity hot spots and will continue to be a focus of ecological research, now invigorated by this definitive synthesis."--S. Blair Hedges, Pennsylvania State University The West Indies have become a major focus for biologists and conservationists. Its herpetofauna is considered one of the richest and most vulnerable in the world. These fragile natural environments are home to many unique animals that occur only on these islands. Loss of habitat, development of scenic areas for a burgeoning tourist industry, and the introduction of invasive species have contributed to an already tenuous situation for many of the region's native species. This volume summarizes the natural history of each of the more than seven hundred species of frogs and reptiles that live in the West Indies. Sure to be the starting point for all future research on West Indian amphibians and reptiles, it will be an essential companion to the biologist contemplating or conducting research in the area.

Advances in Microbial Control of Insect Pests (Hardcover, Harper Trophy): Rajeev K. Upadhyay Advances in Microbial Control of Insect Pests (Hardcover, Harper Trophy)
Rajeev K. Upadhyay
R5,413 Discovery Miles 54 130 Ships in 18 - 22 working days

The insect 1 remain in symbiotic associations with a tremendous number of microorganisms, and some of them could be classified as parasitic/pathogenic. Without question, insect pathogens act as natural mortality agents and represent the third leg of the triad of biological control which is an environmentally sound alternative to chemical control. The virulence and pathogenicity of an insect parasite i. e. disease agent are determined by the microbial genome as a result of the coordinated expression of a concert of genes. These genes may be organized as cassettes and be associated with transmissible DNA. The acquisition of these domains or pathogenicity islands, may be sufficient to develop a transgenic virulent pathogen. The insect pathogens are very specific and this property can be exploited in making insects sick. However, rarely have field applications of highly virulent strains of viruses, fungi, bacteria, protozoa resulted in massive insect population reductions or induced widespread, persistent epizootics as the same is also governed by host susceptibility regulated by genetics, age, sex and physiological state of the host. Insect pathogens causing acute or chronic diseases must be able to persist in the environment, to multiply in the host, and to spread to other susceptible hosts. In this book, I have attempted to bring together all recent studies regarding both fundamental and more applied research aspects related to entomopathogens, bacteria, viruses, fungi and nematodes in order to facilitate their development and commercial exploitation.

Lec?Ons Sur Les Animaux Utiles Et Nuisibles - Les Betes Calomniees Et Mal Jugees (French, Paperback): Carl Vogt Lec?Ons Sur Les Animaux Utiles Et Nuisibles - Les Betes Calomniees Et Mal Jugees (French, Paperback)
Carl Vogt
R568 Discovery Miles 5 680 Ships in 10 - 15 working days
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