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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Animal ecology

Forest Pest and Disease Management in Latin America - Modern Perspectives in Natural Forests and Exotic Plantations (Hardcover,... Forest Pest and Disease Management in Latin America - Modern Perspectives in Natural Forests and Exotic Plantations (Hardcover, 1st ed. 2020)
Sergio A. Estay
R4,368 Discovery Miles 43 680 Ships in 10 - 15 working days

By providing multiple economic goods and ecosystem services, Latin American forests play a key role in the environmental, social and economic welfare of the region's countries. From the tropical forests of Central America to the Mediterranean and temperate vegetation of the southern cone, these forests face a myriad of phytosanitary problems that negatively impact on both conservation efforts and forest industry. This book brings together the perspectives of several Latin American researchers on pest and disease management. Each chapter provides modern views of the status and management alternatives to problems as serious as the impact of introduced exotic insects and diseases on Pinus and Eucalyptus plantations throughout the continent, and the emergence of novel insect outbreaks in tropical and temperate native forests associated with global warming. It is a valuable guide for researchers and practitioners working on forest health in Latin America and around the world.

Neotropical Insect Galls (Hardcover, 2014): Geraldo Wilson Fernandes, Jean Carlos Santos Neotropical Insect Galls (Hardcover, 2014)
Geraldo Wilson Fernandes, Jean Carlos Santos
R4,471 Discovery Miles 44 710 Ships in 10 - 15 working days

The book brings to light the most recent findings on the biogeography, biodiversity, host plant induction and natural history of gall inducing insects in the Neotropical region.We attempt to summarize the work done so far in the region, promote several syntheses on many aspects such as host induction, host specialization, distribution among the several vegetation types and zones, the origin of super hosts and the mechanisms leading to geographical patterns in their distribution.Furthermore, the book constructs new perspectives for deeper understanding of galling insect evolutionary ecology and biogeopgraphy in the region."

The Ecology of Playful Childhood - The Diversity and Resilience of Caregiver-Child Interactions  among the San of Southern... The Ecology of Playful Childhood - The Diversity and Resilience of Caregiver-Child Interactions among the San of Southern Africa (Hardcover, 1st ed. 2020)
Akira Takada
R2,879 Discovery Miles 28 790 Ships in 10 - 15 working days

While studies of San children have attained the peculiar status of having delineated the prototype for hunter-gatherer childhood, relatively few serious ethnographic studies of San children have been conducted since an initial flurry of research in the 1960s and 1970s. Based on the author's long-term field research among several San groups of Southern Africa, this book reconsiders hunter-gatherer childhood using "play" as a key concept. Playfulness pervades the intricate practices of caregiver-child interactions among the San: immediately after birth, mothers have extremely close contact with their babies. In addition to the mother's attentions, other people around the babies actively facilitate gymnastic behavior to soothe them. These distinctive caregiving behaviors indicate a loving, indulgent attitude towards infants. This also holds true for several language genres of the San that are used in early vocal communication. Children gradually become involved in various playful activities in groups of children of multiple ages, which is the major locus of their attachment after weaning; these playful activities show important similarities to the household and subsistence activities carried out by adults. Rejuvenating studies of San children and hunter-gatherer childhood and childrearing practices, this book aims to examine these issues in detail, ultimately providing a new perspective for the understanding of human sociality.

Ethnoprimatology - Primate Conservation in the 21st Century (Hardcover, 1st ed. 2016): Michel T. Waller Ethnoprimatology - Primate Conservation in the 21st Century (Hardcover, 1st ed. 2016)
Michel T. Waller
R6,167 Discovery Miles 61 670 Ships in 12 - 19 working days

The list of challenges facing nonhuman primates in the 21st century is a long one. The expansion of palm oil plantations to feed a growing consumer class is eating away at ape and monkey habitats in Southeast Asia and Central Africa. Lemurs are hunted for food in the poorest parts of Madagascar while monkeys are used as medicine in Brazil. Traditional cultural beliefs are maintaining demand for animal body parts in West African markets while viral YouTube videos of "cute" and "cuddly" lorises have increased their market value as pets and endangered their populations. These and other issues are addressed in this book by leading researchers in the field of ethnoprimatology, the study of human/nonhuman primate interactions that combines traditional primatological methodologies with cultural anthropology in an effort to better understand the nuances of our economic, ritualistic, and ecologic relationships.

Spider Ecophysiology (Hardcover): Wolfgang Nentwig Spider Ecophysiology (Hardcover)
Wolfgang Nentwig
R5,679 Discovery Miles 56 790 Ships in 10 - 15 working days

With over 43,000 species, spiders are the largest predacious arthropod group. They have developed key characteristics such as multi-purpose silk types, venoms consisting of hundreds of components, locomotion driven by muscles and hydraulic pressure, a highly evolved key-lock mechanism between the complex genital structures, and many more unique features. After 300 million years of evolutionary refinement, spiders are present in all land habitats and represent one of the most successful groups of terrestrial organisms. Ecophysiology combines functional and evolutionary aspects of morphology, physiology, biochemistry and molecular biology with ecology. Cutting-edge science in spiders focuses on the circulatory and respiratory system, locomotion and dispersal abilities, the immune system, endosymbionts and pathogens, chemical communication, gland secretions, venom components, silk structure, structure and perception of colours as well as nutritional requirements. Spiders are valuable indicator species in agroecosystems and for conservation biology. Modern transfer and application technologies research spiders and their products with respect to their value for biomimetics, material sciences, and the agrochemical and pharmaceutical industries.

The Ecology of Large Herbivores in South and Southeast Asia (Hardcover, 1st ed. 2016): Farshid Ahrestani, Mahesh Sankaran The Ecology of Large Herbivores in South and Southeast Asia (Hardcover, 1st ed. 2016)
Farshid Ahrestani, Mahesh Sankaran
R4,950 Discovery Miles 49 500 Ships in 12 - 19 working days

Large terrestrial mammalian herbivores play critical roles in ecosystems by acting as regulators of energy and nutrient cycles, modulators of plant community composition and grassland-woodland transitions, agents of seed dispersal, and as prey for large carnivores. Though large herbivores represent a prominent component of mammalian assemblages throughout South and Southeast Asia, little is known about their roles in ecosystems in the region. This volume presents, for the first time, a collection of studies on the ecology of the rich and diverse large herbivore assemblages of South and Southeast Asia. Prepared by experts on herbivores of the region, it covers a comprehensive range of topics, including their evolutionary history, behavioural, nutritional, and population ecology, patterns of diversity across environmental gradients, roles as seed dispersers and regulators of plant growth, community compositions, and their conservation in the face of hunting and global change.

Life in the Dark - Illuminating Biodiversity in the Shadowy Haunts of Planet Earth (Hardcover): Dante Fenolio Life in the Dark - Illuminating Biodiversity in the Shadowy Haunts of Planet Earth (Hardcover)
Dante Fenolio
R1,045 Discovery Miles 10 450 Ships in 12 - 19 working days

Deep inside caves, at the bottoms of oceans and lakes, beneath the ground: these concealed habitats are absent of sunlight. This strange and fascinating world of complete darkness is not a solitary place-it is inhabited by millions of life forms. Yet most humans-creatures of daylight-have never seen any of them. Until now. In this fascinating-sometimes eerie-book, extreme wildlife photographer and scientist Dante Fenolio brings the denizens of these shadowy haunts into focus. Life in the Dark shows us the many ways in which life forms have adapted to lightless environments, including refinements of senses, evolution of unique body parts, and illumination using "biological flashlights." With more than 200 mesmerizing color photographs, Life in the Dark unveils bizarre creatures like the firefly squid, the giant Amazonian catfish, the Chinese cavefish, and even the human bot fly, which lives in the darkness beneath its host's skin. Fenolio's rich and vibrant images shed new light on the world's fascinating creatures of darkness.

Ecological Modelling Applied to Entomology (Hardcover, 2014): Claudia P. Ferreira, Wesley A. C. Godoy Ecological Modelling Applied to Entomology (Hardcover, 2014)
Claudia P. Ferreira, Wesley A. C. Godoy
R4,189 R3,620 Discovery Miles 36 200 Save R569 (14%) Ships in 12 - 19 working days

Insects, when studied from the ecological perspective, provide a great opportunity for scientific studies emphasizing population theory. The simple fact of being successful organisms for their ability to colonize different habitats or even for their high reproductive potential, increases the interest of ecologists in conducting studies focused on population and community level. Mathematical models are powerful tools that can capture the essence of many biological systems and investigate ecological patterns associated to ecological stability dependent on endogenous and exogenous factors. This proposal comes from the idea of adding experiences of researchers interested in working at the interface between mathematical and computation theory and problems centered on entomology, showing how mathematical modelling can be an important tool for understanding population dynamics, behavior, pest management, spatial structure and conservation.

Spatial Dynamics and Ecology of Large Ungulate Populations in Tropical Forests of India (Hardcover, 1st ed. 2021): N. Samba... Spatial Dynamics and Ecology of Large Ungulate Populations in Tropical Forests of India (Hardcover, 1st ed. 2021)
N. Samba Kumar, K. Ullas Karanth, James D. Nichols, Srinivas Vaidyanathan, Beth Gardner, …
R2,884 Discovery Miles 28 840 Ships in 10 - 15 working days

Large ungulates in tropical forests are among the most threatened taxa of mammals. Excessive hunting, degradation of and encroachments on their natural habitats by humans have contributed to drastic reductions in wild ungulate populations in recent decades. As such, reliable assessments of ungulate-habitat relationships and the spatial dynamics of their populations are urgently needed to provide a scientific basis for conservation efforts. However, such rigorous assessments are methodologically complex and logistically difficult, and consequently many commonly used ungulate population survey methods do not address key problems. As a result of such deficiencies, key parameters related to population distribution, abundance, habitat ecology and management of tropical forest ungulates remain poorly understood. This book addresses this critical knowledge gap by examining how population abundance patterns in five threatened species of large ungulates vary across space in the tropical forests of the Nagarahole-Bandipur reserves in southwestern India. It also explains the development and application of an innovative methodology - spatially explicit line transect sampling - based on an advanced hierarchical modelling under the Bayesian inferential framework, which overcomes common methodological deficiencies in current ungulate surveys. The methods and results presented provide valuable reference material for researchers and professionals involved in studying and managing wild ungulate populations around the globe.

Avian Malaria and Related Parasites in the Tropics - Ecology, Evolution and Systematics (Hardcover, 1st ed. 2020): Diego... Avian Malaria and Related Parasites in the Tropics - Ecology, Evolution and Systematics (Hardcover, 1st ed. 2020)
Diego Santiago-Alarcon, Alfonso Marzal
R2,990 Discovery Miles 29 900 Ships in 10 - 15 working days

The Tropics are home to the greatest biodiversity in the world, but tropical species are at risk due to anthropogenic activities, mainly land use change, habitat loss, invasive species, and pathogens. Over the past 20 years, the avian malaria and related parasites (Order: Haemosporida) systems have received increased attention in the tropical regions from a diverse array of research perspectives. However, to date no attempts have been made to synthesize the available information and to propose new lines of research. This book provides such a synthesis by not only focusing on the antagonistic interactions, but also by providing conceptual chapters on topics going from avian haemosporidians life cycles and study techniques, to chapters addressing current concepts on ecology and evolution. For example, a chapter synthesizing basic biogeography and ecological niche model concepts is presented, followed by one on the island biogeography of avian haemosporidians. Accordingly, researchers and professionals interested in these antagonistic interaction systems will find both an overview of the field with special emphasis on the tropics, and access to the necessary conceptual framework for various topics in ecology, evolution and systematics. Given its conceptual perspective, the book will appeal not only to readers interested in avian haemosporidians, but also to those more generally interested in the ecology, evolution and systematics of host-parasite interactions.

Global Diversity and Ecological Function of Parasites of Euphausiids (Hardcover, 1st ed. 2017): Jaime Gomez-Gutierrez, So... Global Diversity and Ecological Function of Parasites of Euphausiids (Hardcover, 1st ed. 2017)
Jaime Gomez-Gutierrez, So Kawaguchi, Jose Raul Morales-Avila
R4,899 Discovery Miles 48 990 Ships in 12 - 19 working days

This volume critically reviews all previously published work of parasites that interact with krill (order Euphausiacea) updating misconceptions and summarizing the diversity of epibionts, ectoparasites, mesoparasites and endoparasites that interact with these crustaceans. As far as we know, there is a lack of books about parasites of marine crustaceans not targeted to fisheries and aquaculture. Thus, this would be the most complete and integrative monograph of parasites of marine zooplankton and micro nektonic organisms worldwide. Krill form immense aggregations and serve as food for multiple planktonic and nektonic predators playing a crucial role in pelagic food web. Besides, several species are also used for human consumption. For these reasons there is a growing concern about the health issues that krill parasites may impose on other species, including us. This book provides a comprehensive review of parasites of a crustacean order that can extrapolate to potential parasites in other crustacean taxa worldwide.

Mathematical Models in Population Biology and Epidemiology (Hardcover, 2nd ed. 2012): Fred Brauer, Carlos Castillo-Chavez Mathematical Models in Population Biology and Epidemiology (Hardcover, 2nd ed. 2012)
Fred Brauer, Carlos Castillo-Chavez
R2,726 Discovery Miles 27 260 Ships in 10 - 15 working days

The goal of this book is to search for a balance between simple and analyzable models and unsolvable models which are capable of addressing important questions on population biology. Part I focusses on single species simple models including those which have been used to predict the growth of human and animal population in the past. Single population models are, in some sense, the building blocks of more realistic models -- the subject of Part II. Their role is fundamental to the study of ecological and demographic processes including the role of population structure and spatial heterogeneity -- the subject of Part III. This book, which will include both examples and exercises, is of use to practitioners, graduate students, and scientists working in the field.

Campylobacter Ecology and Evolution (Hardcover, New): Samuel K. Sheppard, Guillaume Meric Campylobacter Ecology and Evolution (Hardcover, New)
Samuel K. Sheppard, Guillaume Meric
R5,804 Discovery Miles 58 040 Ships in 10 - 15 working days

Members of the genus Campylobacter are commonly found in the gastrointestinal tract of mammals and birds, and can be commensal or pathogenic in nature. In this book, internationally recognized experts critically review and provide novel insights into important aspects Campylobacter research.

Problematic Wildlife II - New Conservation and Management Challenges in the Human-Wildlife Interactions (Hardcover, 1st ed.... Problematic Wildlife II - New Conservation and Management Challenges in the Human-Wildlife Interactions (Hardcover, 1st ed. 2020)
Francesco Maria Angelici, Lorenzo Rossi
R5,660 Discovery Miles 56 600 Ships in 12 - 19 working days

In a world where habitats are constantly changing and the impact of anthropization on the environment is increasingly intense, interactions between human and wildlife are becoming more and more complex. Some species pose problems for human activities while many others need to be helped in order to continue to exist. This book follows the first volume called 'Problematic Wildlife', edited by F.M. Angelici and published by Springer in 2016, which has had considerable success with readers and critics. The volume includes 21 chapters divided into 7 parts devoted specific topics which are approached in a multidisciplinary way. There are both review chapters and specific cases, always bearing in mind the interest for an international audience. The book is useful both for scientists, wildlife specialists, conservationists, zoologists, ecologists, university students, nature managers, and for those who live in contact with wildlife and its problems, such as farmers, shepherds, hunters, urban planners, and staff of parks and nature reserves. Its ultimate goal is to offer scientific and pragmatic approaches to manage each categories of problematic species.

Ecological and Environmental Physiology of Birds (Hardcover, New): J. Eduardo P. W Bicudo, William A. Buttemer, Mark A.... Ecological and Environmental Physiology of Birds (Hardcover, New)
J. Eduardo P. W Bicudo, William A. Buttemer, Mark A. Chappell, James T. Pearson, Claus Bech
R4,091 Discovery Miles 40 910 Ships in 12 - 19 working days

Birds have colonized almost every terrestrial habitat on the planet - from the poles to the tropics, and from deserts to high mountain tops. Ecological and Environmental Physiology of Birds focuses on our current understanding of the unique physiological characteristics of birds that are of particular interest to ornithologists, but also have a wider biological relevance.
An introductory chapter covers the basic avian body plan and their still-enigmatic evolutionary history. The focus then shifts to a consideration of the essential components of that most fundamental of avian attributes: the ability to fly. The emphasis here is on feather evolution and development, flight energetics and aerodynamics, migration, and as a counterpoint, the curious secondary evolution of flightlessness that has occurred in several lineages. This sets the stage for subsequent chapters, which present specific physiological topics within a strongly ecological and environmental framework. These include gas exchange, thermal and osmotic balance, 'classical' life history parameters (male and female reproductive costs, parental care and investment in offspring, and fecundity versus longevity tradeoffs), feeding and digestive physiology, adaptations to challenging environments (high altitude, deserts, marine habitats, cold), and neural specializations (notably those important in foraging, long-distance navigation, and song production).
Throughout the book classical studies are integrated with the latest research findings. Numerous important and intriguing questions await further work, and the book concludes with a discussion of methods (emphasizing cutting-edge technology), approaches, and future research directions.

The Smallest Anthropoids - The Marmoset/Callimico Radiation (Hardcover, 2009 ed.): Susan M. Ford, Leila M. Porter, Lesa C. Davis The Smallest Anthropoids - The Marmoset/Callimico Radiation (Hardcover, 2009 ed.)
Susan M. Ford, Leila M. Porter, Lesa C. Davis
R5,688 Discovery Miles 56 880 Ships in 10 - 15 working days

This volume represents a comprehensive examination of the newly recognized callimico/marmoset clade, which includes the smallest anthropoid primates on earth. It will explore these diminutive primates in their entirety, with sections on phylogeny, taxonomy and functional anatomy, behavioral ecology, reproductive physiology, as well as address critical conservation issues and the need for conservation action. The topics specifically selected for this volume are pivotal for understanding the evolutionary adaptations and divergence of any primate group, and especially one as diverse and curious as this. The discoveries of new taxa over the last fifteen years along with new genetic data have transformed this group from three genera (one with only a distant relationship to the others) and five recognized species, to five closely related genera, comprising at least 22 species. This volume will be the first to synthesize data on these newly recognized taxa.

This volume is an international endeavor, bringing together primary callimico and marmoset researchers from around the globe, including Brazil and the United States as well as Greece, Italy, Switzerland, and Germany. One of the merits of this volume is that it will serve as a readily accessible work that includes the major findings of several key international researchers whose work has not been easily available to English-speaking scholars. In addition, it draws together lab and field researchers, geneticists, anatomists, and behaviorists in an integrated volume that will provide the most detailed and thorough work on either callimicos or marmosets to date. This volume will also provide a timely forum for identifying future avenues of action necessary for more fully understanding and protecting this intriguing primate radiation.

Birds of Prey - Biology and conservation in the XXI century (Hardcover, 1st ed. 2018): Jose Hernan Sarasola, Juan Manuel... Birds of Prey - Biology and conservation in the XXI century (Hardcover, 1st ed. 2018)
Jose Hernan Sarasola, Juan Manuel Grande, Juan Jose Negro
R7,552 Discovery Miles 75 520 Ships in 12 - 19 working days

This book will provide the state-of-the-art on most of the topics involved in the ecology and conservation of birds of prey. With chapters authored by the most recognized and prestigious researchers on each of the fields, this book will become an authorized reference volume for raptor biologists and researchers around the world.

Understanding Animal Welfare - An Integrated Approach (Hardcover, 2012 ed.): Edward N. Eadie Understanding Animal Welfare - An Integrated Approach (Hardcover, 2012 ed.)
Edward N. Eadie
R4,571 Discovery Miles 45 710 Ships in 12 - 19 working days

This book examines the contents, influence, and potential of a personal selection of modern books published over the last fifty years that have been relevant to improving welfare. The works selected comprise three earlier classics that mainly deal with animal experimentation and intensive farming, as well as five that concentrate on specific subject areas, namely history, science, applied ethics, politics and law, that are important to protecting the welfare of animals against suffering inflicted by humans. The books are arranged in the order of their publication date, and for each one a few related works are also mentioned or discussed. This collection provides a broad understanding of animal protection issues, and provides the necessary basis for an informed and comprehensive approach to improving the welfare of animals. The books selected have been influential and they have the potential to improve animal welfare in the future.

Spawning Migration of the European Eel - Reproduction index, a useful tool for conservation management (Hardcover, 2009 ed.):... Spawning Migration of the European Eel - Reproduction index, a useful tool for conservation management (Hardcover, 2009 ed.)
Guido Van Den Thillart, Sylvie Dufour, J. Cliff Rankin
R5,682 Discovery Miles 56 820 Ships in 10 - 15 working days

Freshwater eels are almost infinitely improbable creatures. They spawn and die in the middle of the ocean, often associated with undersea mountains. Their tra- parent, leaf-like larvae move with ocean currents for months or years until they approach the mouths of freshwater rivers. Then they undergo a dramatic transf- mation in morphology, physiology and behavior. They move from their planktonic oceanic environment, migrate upstream and live for several years as apex fre- water predators. Then, almost impossibly, as they become sexually mature, they reverse their migration downstream to the ocean and back to spawning grounds to complete their life cycle. The dramatic changes in their life cycles are incredible. The efforts to unravel the details of their life history have been truly daunting. Much of the past research was the work of dedicated individuals who devoted their lifetime research to these fishes. Freshwater eels merit a separate chapter in almost any textbook dealing with ichthyology, marine biology or animal migration. We know a great deal about some aspects of the biology of freshwater eels. However, our understanding of their bi- ogy still resembles a work of art as much as a work of science. To some it appears like the sweeping brush strokes of a Japanese Zen landscape, to others it resembles the work of a French impressionist, and to still others it appears as magic realism.

Insect Behavior (Hardcover, 2nd ed. 2010): Robert W. Matthews, Janice R. Matthews Insect Behavior (Hardcover, 2nd ed. 2010)
Robert W. Matthews, Janice R. Matthews
R3,936 Discovery Miles 39 360 Ships in 12 - 19 working days

"Insect Behavior" is the second edition of the text that for thirty years served as the fundamental introduction to a field of study that has been growing enormously. Today, new technologies and understandings are allowing questions to be shaped and answered in ways that once could not have been envisioned. However, massive new information also can overwhelm and obscure the broader perspectives needed to put new discoveries into context. Thus, the times fairly demand that students and non-specialists seek a wider understanding of diverse proximate and ultimate forces that cause animals to behave as they do.

This book provides that opportunity. The authors strike a balance between modern developments and historical insights, between new examples and old, between empirical work and theory, and between pertinent conclusions and the dynamic field and laboratory experiences from which such discoveries arise. Considerably updated and expanded, this edition includes 26 case studies, as well as 45 new color plates and 173 figures (over 40% of them new) with detailed legends that add richness to the well-written, accessible text.

Like the course that originally inspired it, "Insect Behavior" will find utility at the graduate and senior undergraduate level for college and university students. However, although some background in entomology or animal behavior is helpful, an in-depth knowledge is not a prerequisite. Thus, the book also invites comparative psychologists, science educators, and all others with an interest in the physically small but inestimably important creatures that comprise three-quarters of all animal life on our planet. "

Nonverbal Vocal Communication - Comparative and Developmental Approaches (Hardcover, New): H. Papousek, U. Jurgens Nonverbal Vocal Communication - Comparative and Developmental Approaches (Hardcover, New)
H. Papousek, U. Jurgens
R3,001 Discovery Miles 30 010 Ships in 12 - 19 working days

Speech, verbally mediated consciousness, and culture most evidently differentiate people from animals. Moreover, verbal communication has historically been viewed as a human attribute. Yet, the biological precursors to verbal communication exist in animal communication: obvious links have been found between human and animal nonverbal vocal communication. Knowledge of these links contribute to our understanding of three major theoretical and clinical issues: the evolution of vocal communication; the process of speech acquisition during infancy; and the pathways of disorders in communicative development. In Nonverbal Vocal Communication specialists from several disciplines review the present knowledge on neural substrates of vocal communication, on primate vocal communication, and on precursors and prerequisites of human speech. Among other points, the book illustrates that animal vocal signals, particularly in primates, appear to be much more complex than mere expressions of effective states. The nonverbal communication data is complemented by comparative and developmental research of the preverbal period of human vocal communication. Studies of speech acquisition, biological adaptation and environmental support to speech yield a complex picture of interrelations between biogenetic and environmental factors. The new evidence that parents--without knowing--are well-fitted for supporting infant communicative development is astonishing. Their capacities represent a primary, biological model of didactic educational support.

The Ecology of Large Mammals in Central Yellowstone, Volume 3 - Sixteen Years of Integrated Field Studies (Hardcover): Robert... The Ecology of Large Mammals in Central Yellowstone, Volume 3 - Sixteen Years of Integrated Field Studies (Hardcover)
Robert A. Garrott, Patrick J. White, Fred G.R. Watson
R2,529 Discovery Miles 25 290 Ships in 12 - 19 working days

This book represents the results of a comprehensive study of the ecological processes of the central Yellowstone ecosystem carried out over the past 15 years by an integrated team of scientists and graduate students. It provides an authoritative work on the mechanisms underlying the spatial and temporal dynamics of large mammal predator-prey systems in natural ecosystems, and is directed to the scientific community, resource managers, policy makers and the interested public alike.
This area includes the range of one of the largest migratory populations of elk in North America and for the past century it has been at the heart of public debates over population regulation of large herbivores and ungulates and their impact on ecological processes. Since the reintroduction of wolves into the system a decade ago the scientific and public controversy has shifted to debates about the impacts of large predators on their ungulate prey and potential predator-induced trophic cascades.
A part of central Yellowstone comprises the range of the large (2000-3500) migratory bison herd that summers in the high-elevation valleys in east-central Yellowstone, and winters along the headwaters of the Madison River to the west. This unique and diverse area of the Park and the opportunity it presents for studying ecological processes in a large pristine landscape has previously been largely ignored until this study.
The Editors vision is to build an integrated and multidisciplinary research program dedicated to: (1) producing objective science with the goal of advancing our knowledge of the central Yellowstone ecosystem; (2) supporting sound natural resource management, and (3) communicating theirknowledge and discoveries to the visiting public to enhance their experience and enjoyment of the Park. They have developed a small and tight-knit team of scientists with complementary skills and expertise.
Although there is ever-increasing discussion within the ecological community on the need to develop long-term, integrated and interdisciplinary research programs examples of such programs are relatively rare. The proposed book, synthesizing numerous projects will have very broad appeal not only to academic ecologists, but also to natural resource managers, policy makers, biologists, and administrators.
* Unrivalled description of a classic and world famous ecosystem, involving information from a 15 year integrated and multidisciplinary study by numerous scientists.
* Detailed analysis and comparison of two charismatic North American herbivore species - Elk and Bison
* Detailed description of the reintroduction of wolves into Yellowstone Park - and their ecology and impact on the herbivores and ecosystem in general.
* A whole ecosystem view, putting the biology, ecology, management and human dimensions into context.
* Numerous colour photographs

Water in Biomechanical and Related Systems (Hardcover, 1st ed. 2021): Adam Gadomski Water in Biomechanical and Related Systems (Hardcover, 1st ed. 2021)
Adam Gadomski
R5,131 Discovery Miles 51 310 Ships in 10 - 15 working days

The contributed volume puts emphasis on a superior role of water in (bio)systems exposed to a mechanical stimulus. It is well known that water plays an extraordinary role in our life. It feeds mammalian or other organism after distributing over its whole volume to support certain physiological and locomotive (friction-adhesion) processes to mention but two of them, both of extreme relevance. Water content, not only in the mammalian organism but also in other biosystems such as whether those of soil which is equipped with microbiome or the ones pertinent to plants, having their own natural network of water vessels, is always subjected to a force field.The decisive force field applied to the biosystems makes them biomechanically agitated irrespective of whether they are subjected to external or internal force-field conditions. It ought to be noted that the decisive mechanical factor shows up in a close relation with the space-and-time scale in which it is causing certain specific phenomena to occur.The scale problem, emphasizing the range of action of gravitational force, thus the millimeter or bigger force vs. distance scale, is supposed to enter the so-called macroscale approach to water transportation through soil or plants' roots system. It is merely related to a percolation problem, which assumes to properly inspect the random network architecture assigned to the biosystems invoked. The capillarity conditions turn out to be of prior importance, and the porous-medium effect has to be treated, and solved in a fairly approximate way.The deeper the scale is penetrated by a force-exerting and hydrated agent the more non-gravitational force fields manifest. This can be envisaged in terms of the corresponding thermodynamic (non-Newtonian) forces, and the phenomena of interest are mostly attributed to suitable changes of the osmotic pressure. In low Reynolds number conditions, thus in the (sub)micrometer distance-scale zone, they are related with the corresponding viscosity changes of the aqueous, e.g. cytoplasmatic solutions, of semi-diluted and concentrated (but also electrolytic) characteristics. For example, they can be observed in articulating systems of mammals, in their skin, and to some extent, in other living beings, such as lizards, geckos or even insects. Through their articulating devices an external mechanical stimulus is transmitted from macro- to nanoscale, wherein the corresponding osmotic-pressure conditions apply. The content of the proposed work can be distributed twofold. First, the biomechanical mammalian-type (or, similar) systems with extraordinary relevance of water for their functioning will be presented, also including a presentation of water itself as a key physicochemical system/medium. Second, the suitably chosen related systems, mainly of soil and plant addressing provenience, will be examined thoroughly. As a common denominator of all of them, it is proposed to look at their hydrophobic and/or (de)hydration effects, and how do they impact on their basic mechanical (and related, such as chemo-mechanical or piezoelectric, etc.) properties. An additional tacit assumption employed throughout the monograph concerns statistical scalability of the presented biosystems which is equivalent to take for granted a certain similarity between local and global system's properties, mostly those of mechanical nature. The presented work's chapters also focus on biodiversity and ecological aspects in the world of animals and plants, and the related systems. The chapters' contents underscore the bioinspiration as the key landmark of the proposed monograph.

Fisheries Resources Economics (Hardcover, 1st ed. 2021): Xinjun Chen Fisheries Resources Economics (Hardcover, 1st ed. 2021)
Xinjun Chen
R4,948 Discovery Miles 49 480 Ships in 12 - 19 working days

Fisheries resources are an important component of natural resources. It is an important source of high-quality animal protein and food for humans, which provides employment, economic benefits and social welfare for people engaged in fishing activities. It also has played an important role in food safety, economic development, and foreign trade. Fisheries resources economics is an important branch of both applied economics and resource economics. Its research object is fishery resources and its economic problems. The economics of fishery resources is to focus on the relationship between the demand for human economic activities and the supply of fishery resources, as well as between fishery resources and its development. This book expounds the reasons for the economic problems of fishery resources and the theoretical principles for solving them, so as to reveal the objective rules of the allocation of fishery resources in different regions and at different times, to coordinate the relationship between the utilization of fishery resources and economic development, and to realize the sustainable development of fishery economy. This book will also provide learning materials for undergraduates, graduate students and practitioners engaged in fishery resources development and scientific management.

Bioclimatology and Biogeography of Africa (Hardcover, 2009 ed.): Henry N. Houerou Bioclimatology and Biogeography of Africa (Hardcover, 2009 ed.)
Henry N. Houerou
R2,893 Discovery Miles 28 930 Ships in 10 - 15 working days

Covering an area of over 130 million km2 spanning the Mediterranean, equator and tropics, the African continent features a spectacular geographic diversity. Consequently, it is characterised by extremely variable climatic, edaphic and ecological conditions, associated with a wide range of natural vegetation and wildlife, as well as human population density, crops and livestock.

In this book, Henry Le Houerou presents his bioclimatic and biogeographic classification of Africa. The extensive data provide the basis for comparisons between various African regions, and with regions on other continents such as Latin America or the Indian subcontinent. The results constitute a rational basis for national, regional and sub-regional rural development planning, and for agricultural research dealing with aspects such as plant and animal introductions, the extrapolation or interpolation of experimental or developmental findings, and ecosystems dynamics. Possible problems of applications are also examined."

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