![]() |
Welcome to Loot.co.za!
Sign in / Register |Wishlists & Gift Vouchers |Help | Advanced search
|
Your cart is empty |
||
|
Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues > Ecological science, the Biosphere
This monograph studies a series of mathematical models of the evolution of a population under mutation and selection. Its starting point is the quasispecies equation, a general non-linear equation which describes the mutation-selection equilibrium in Manfred Eigen's famous quasispecies model. A detailed analysis of this equation is given under the assumptions of finite genotype space, sharp peak landscape, and class-dependent fitness landscapes. Different probabilistic representation formulae are derived for its solution, involving classical combinatorial quantities like Stirling and Euler numbers. It is shown how quasispecies and error threshold phenomena emerge in finite population models, and full mathematical proofs are provided in the case of the Wright-Fisher model. Along the way, exact formulas are obtained for the quasispecies distribution in the long chain regime, on the sharp peak landscape and on class-dependent fitness landscapes. Finally, several other classical population models are analyzed, with a focus on their dynamical behavior and their links to the quasispecies equation. This book will be of interest to mathematicians and theoretical ecologists/biologists working with finite population models.
This book presents the phylogeny, taxonomy and biogeography of freshwater red algae. Its content is divided into five chapters. The first chapter provides a brief history of freshwater red algal research, habits and collecting methods, general biogeographic trends and an overview of the taxonomic/phylogenetic placement of freshwater taxa. The other four chapters are taxonomic treatments of non-marine red algae based on taxonomic levels, i.e. classes within the phylum Rhodophyta, orders within each class, families within each order, and genera within each family. Descriptions, phylogenetic data (including numerous trees), geographic range (maps for most species) and dichotomous keys for identification are presented. Comprehensive data are provided for more than 220 species.
This book looks at the case study of Hachioji as a major transit hub with a world-class public transportation system in Japan. It tracks how Tokyo slowly expands into its suburban, rural or sub-rural districts. It also wants to profile the multiple identities of a city that is simultaneously an ecological asset, a heritage locale in addition to a logistics hub. The volume is probably the first of its kind to analyze the western sector of the largest city in the world.
This book owes a great deal to the outstanding universal value of the natural heritage of Hubei Shennongjia, which offers an outstanding example of the ongoing ecological processes occurring in the development of intact subtropical mixed broad-leaved evergreen and deciduous forests in the northern hemisphere. The book demonstrates the value from the typical example of mountain altitudinal biological zones in the Oriental Deciduous Forest Biogeographical Province, and the vital origin location for global temperate flora, harboring the highest concentration of global temperate genera. Moreover, the heritage value in exceptional biodiversity and key habitat for numerous relic, rare, endangered, endemic, and type specimen species are presented. The richness of deciduous woody species in Shennongjia is the highest in the world.
The Antarctic continent carries the greatest diversity of lake environments on the planet: freshwater and saline lakes, tidal freshwater epishelf lakes, lakes on ice shelves and glacier surfaces, and over three hundred subglacial lakes; extraordinary ecosystems that have been separated from the atmosphere for up to millions of years. This book provides a unique and cutting edge synthesis of Antarctic limnology, drawing together current knowledge on geomorphology, morphometry, chemistry, community structure and function. It emphasises throughout the value of these near-pristine ecosystems as barometers of climate change, showing how responsive and vulnerable they are to the indirect impacts of anthropogenic activity. Antarctic Lakes begins with an introduction to their physical, chemical, and biological characteristics, providing a basis for understanding the subsequent detailed chapters on different lake types, and ends with a chapter considering the application of new technologies to polar limnology as well as identifying future research directions. This accessible text is suitable for both senior undergraduate and graduate students taking courses in Antarctic and polar limnology, and will also be of broad interest to researchers working in the areas of polar science, microbial ecology (and extremophiles), climatology, glaciology, and astrobiology.
The importance of the Neotropics to the world's climate, biogeochemical cycling and biodiversity cannot be questioned. This book suggests that gradients are key to understanding both these issues and Neotropical ecosystem structure, function and dynamics in general. Those gradients are either spatial, temporal or spatio-temporal, where many temporal and spatio-temporal gradients are initiated by disturbances (e.g., tree-fall, landslide, cultivation). And in particular for the Neotropics, three large spatial gradients - latitude, longitude, altitude (elevation) - are of critical importance. The editor has over 30 years of experience investigating Neotropical gradients in Costa Rica, Puerto Rico, Peru and Ecuador, and has published 5 previous books on different aspects of the Neotropics. Once again he has assembled top-shelf Neotropical scientists and researchers, here to focus on gradients: their nature, interactions and how they structure ecosystems.
The proposed book aims to understand the mechanism of survival of microorganisms in response to chemical stress in various ecological niches that suffer direct human intervention, more so the agricultural, domestic and hospital settings. Microbicides (e.g. disinfectants, antiseptics, fungicides, algaecides, insecticides and pesticides) are used rampantly to control undesirable microbes. Insecticides and pesticides are routinely used in agriculture which directly affect the microbial population in farms, orchards and fields. Health care environments are always stressed with disinfectants and antibiotics. It is always probable that microbicide-stressed microorganisms are in a dynamic state, displaced from one niche to the other. Some soil and water borne bacteria or their resistance determinants are also getting prominence in hospital settings after suffering selective pressure from agricides. In order to reveal the survival strategies of microbicidal-resistant microbes, it is of prime importance to know the mode of action of these complete range of microbicides (agricides to antibiotics). The present book intends to address these issues. There will be several chapters dealing with tolerance and cross resistance in microbes and bacteria in particular, dwelling in various niches. Till date, there is no consensus among scientists in theorizing molecular mechanisms to explain bacterial tolerance and their cross resistance to agricides and antibiotics.
The annual cost of medical care in the U niled States is rapidly approaching a trillion dollars. Without doubt, much of the rise in costs is due to our health industry's concentration on high technology remediation and risk avoidance measures. From recent public discussions it is becoming in creasingly evident that to contain the costs and at the same time extend the benefits of health care without national bankruptcy will necessitate much greater attention to preventative medicine. The total cost of waste disposal by our health industry is well over a billion dollars. It is rising rapidly as we increasingly rely on high technol ogy remediation measures. Here, too, in the opinion of the authors of this work, it would be prudent to give much greater attention to preventative approaches. Incineration technology has largely been developed for disposing mu nicipal solid waste (MSW) and hazardous waste (HW). As a result of the multibillion dollar funding for the Resource Conservation and Recovery Act (RCRA), most experts believe that pollution control is the key to minimizing toxic emissions from incinerators. This view is now beginning to take hold in medical waste (MW) incineration as well. However, the authors contributing to this book have concluded that precombustion measures can be most effective in reducing the toxic products of medical waste incineration."
In May 2004, the Alexander Koenig Zoological Research Museum hosted the Fifth International Symposium on Tropical Biology. This series was established at the ZFMK in the early 1980s, and has variably focused on systematics and ecology of tropical organisms, with an emphasis on Africa. Previous volumes are those edited by Schuchmann (1985), Peters and Hutterer (1990), Ulrich (1997), and Rheinwald (2000). The symposium in 2004 was organized by the Entomology Department under the direction of Michael Schmitt. The intention was to focus on Africa rather than on a particular taxon, and to highlight biodiversity at all levels ranging from molecules to ecosystems. This focus was timely partly because of the currently running BIOTA Africa programmes (BIOdiversity Monitoring Transect Analysis in Africa). BIOTA is an interdisciplinary research project focusing on sustainable use and conservation of biodiversity in Africa (http: //www.biote-africa.de). Session titles were Biogeography and Speciation Processes, Phylogenetic Patterns and Systematics, Diversity Declines and Conservation, and Applied Biodiversity Informatics. Each session was opened by an invited speaker, and all together 77 lectures and 59 posters were presented. There were over 200 participants and it was gratifying to us to meet colleagues from 26 nations, including Russia, Ukraine, Japan, USA, and ten African countries. We thank all participants for their valuable contributions
This contributed volume compiles the latest developments in the field of microbial enzymology. It focuses on topics such as distribution of microbial enzymes in natural habitats, microbial enzymes in environmental sustainability, and environmental disturbances on microbial enzymes, which are organized into three parts, respectively. Ranging from micro-scale studies to macro, it covers a huge domain of microbial enzymes and their interplay between the components of the environment. Overall, the book portrays the importance of microbial enzyme technology and its role in solving the problems in modern-day life. The book is a ready reference for practicing students and researchers in environmental engineering, chemical engineering, agricultural engineering, and other allied fields.
A Course in Mathematical and Statistical Ecology
This is the first truly ecosystem-oriented book on peatlands. It adopts an ecosystems approach to understanding the world's boreal peatlands. The focus is on biogeochemical patterns and processes, production, decomposition, and peat accumulation, and it provides additional information on animal and fungal diversity. A recurring theme is the legacy of boreal peatlands as impressive accumulators of carbon as peat over millennia.
This book provides a comprehensive overview of the current state of knowledge on plant-microbiome interactions and associations. It covers all major mechanistic approaches used to investigate microbes' impacts on plant growth promotion, disease control and health. The industrial manufacture of nitrogen currently accounts for roughly 2% of the world's total energy consumption. Microbial products are expected to reduce the need for costly fertilizers, as well as chemical pesticides and fungicides. While beneficial microorganisms are increasingly being used in agriculture, abiotic and biotic stresses such as heat, drought, cold, and salt can quickly kill or render them useless in the field. However, discovering new and better treatments is a lengthy process due to the considerable microbial diversity found in soils. Researchers have now proposed using biotechnological approaches to accelerate the process of microbial technology development. The fact that plant-associated microbes stimulate plant growth and development is well known, as the examples of rhizobia and mycorrhizal fungi show. The mechanisms by which these microorganisms maintain plant growth include the production of phytohormones, fixation of nitrogen, and the mobilization of phosphorus and minerals. The plant microbiome is also involved in pathogen suppression, and especially the root microbiome acts as a protective shield against soil-borne pathogens. A special feature of this book is its multidisciplinary approach, spanning from plant microbiology/biocontrol, fungal and bacterial endophytes, plant physiology, to biochemistry, proteomics and genomics. It is ideally suited for researchers and student of agri-biotechnology, soil biology and fungal biology.
The European Arctic and Alpine regions are experiencing large environmental changes. These changes may have socio-economic effects if the changes affect the bioproduction, which form the basis for the marine and terrestrial food chains. This uniquely multidisciplinary book presents the various aspects of contemporary environmental changes in Arctic and Alpine Regions.
Inland sand dunes are widespread in North America and are found from the North Slope of Alaska to the Sonoran Desert in northern Mexico and from the Delmarva Peninsula in the east to Southern California in the west. In this edited book, we highlight recent research on areas of inland dunes that span a range from those that are actively accumulating in current conditions of climate and sediment supply to those that were formed in past conditions and are now degraded relict systems. This book will be of interest to researchers and scholars of physical geography, geomorphology, environmental sciences, and earth sciences. Contributions include detailed analyses of individual active dune systems at White Sands, New Mexico; Great Sand Dunes, Colorado; and the Laurentian Great Lakes; as well as the vegetation-stabilized dunes of the Nebraska Sand Hills and the Colorado Plateau. Additional chapters discuss the widespread partially vegetated dune systems of the central and southern Great Plains; the relict dunes of the Atlantic Coastal Plain of the eastern USA; and active and stabilized dunes of the Colorado Plateau and the southwestern deserts of the USA and northern Mexico.
Biopesticide: Volume Two, the latest release in the Advances in Bioinoculant series, provides an updated overview on the active substances utilized in current bioinsecticides, along with information on which of them can be used for integrated pest management programs in agro-ecosystems. The book presents a comprehensive look at the development of novel solutions against new targets, also introducing new technologies that enhance the efficacy of already available active substances. Finally, readers will find insights into the advanced molecular studies on insect microbial community diversity that are opening new frontiers in the development of innovative pest management strategies. This book will be valuable to those prioritizing agro biodiversity management to address optimal productizing and enhanced food security.
The Arctic Tundra and adjacent Boreal Forest or Taiga support the most cold-adapted flora and fauna on Earth. The evolutionary capacity of both plants and animals to adapt to these thermally limiting conditions has always attracted biological investigation and is a central theme of this book. How the polar biota will adapt to a warmer world is creating significant and renewed interest in this habitat. The Arctic has always been subject to climatic fluctuation and the polar biota has successfully adapted to these changes throughout its evolutionary history. Whether or not climatic warming will allow the Boreal Forest to advance onto the treeless Tundra is one of the most tantalizing questions that can be asked today in relation to terrestrial polar biology. Tundra-Taiga Biology provides a circum-polar perspective of adaptation to low temperatures and short growing seasons, together with a history of climatic variation as it has affected the evolution of terrestrial life in the Tundra and the adjacent forested Taiga. It will appeal to researchers new to the field and to the many students, professional ecologists and conservation practitioners requiring a concise but authoritative overview of the biome. Its accessibility also makes it suitable for undergraduate and graduate students taking courses in tundra, taiga, and arctic ecology.
This book systematically introduces the knowledge system and research results of fisheries forecasting. It is divided into four parts and seven chapters. The first part is the introduction, which mainly introduces the basic concepts, the nature of the subject, and the research contents, as well as the current status of research. The second part is about the basic knowledge of fisheries forecasting, including overview of the world marine environment, fish shoaling and migration distribution, the relationship between fish behavior and marine environment, and the basic theory of forming fishing ground. The third part is the focus of this book, including the basic principles and methods of fisheries forecasting, as well as the application of new techniques and methods in fisheries forecasting. The fourth part is the comprehensive application of fisheries forecasting, including the general situation of world marine fisheries, the impact of global marine environment changes on fisheries resources and fishing ground, and case studying of fisheries forecasting of important economic species, such as oceanic squid, jack mackerel, anchovy, and skipjack. The study of this book will help everyone to master the basic principles and methods of fisheries forecasting, as well as the application of new technologies and methods in important economic species, and lay a foundation for future work in the field of marine fisheries.
This book collates the latest trends and technological advancements in bioremediation, especially for its monitoring and assessment. Divided into 18 chapters, the book summarizes basic concepts of waste management and bioremediation, describes advancements of the existing technologies, and highlights the role of modern instrumentation and analytical methods, for environmental clean-up and sustainability. The chapters cover topics such as the role of microbial fuel cells in waste management, microbial biosensors for real-time monitoring of bioremediation processes, genetically modified microorganisms for bioremediation, application of immobilized enzyme reactors, spectroscopic techniques, and in-silico approaches in bioremediation monitoring and assessment. The book will be advantageous not only to researchers and scholars interested in bioremediation and sustainability but also to professionals and policymakers.
This volume is a study of human entanglements with Nature as seen through the mode of haunting. As an interruption of the present by the past, haunting can express contemporary anxieties concerning our involvement in the transformation of natural environments and their ecosystems, and our complicity in their collapse. It can also express a much-needed sense of continuity and relationality. The complexity of the question-who and what gets to be called human with respect to the nonhuman-is reflected in these collected chapters, which, in their analysis of cinematic and literary representations of sentient Nature within the traditional gothic trope of haunting, bring together history, race, postcolonialism, and feminism with ecocriticism and media studies. Given the growing demand for narratives expressing our troubled relationship with Nature, it is imperative to analyze this contested ground. "Chapter 6" is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
This book provides a comprehensive overview of recent research on estuaries of the east coast of India, and how changing biogeochemical dynamics as a result of climate change and human activity have impacted estuaries and other open water ecosystems. Though estuaries only cover a very small portion of the earth's hydrosphere, they are some of the most biogeochemically active regions among the global water bodies. As such, this book focuses on estuaries of the east coast of India going all the way to the Bay of Bengal, which is the world's largest freshwater input from perennial rivers and rain-fed estuaries, and is therefore a unique area of study. Through its unique coverage of the Bay of Bengal in particular, the book presents a new perspective not present in the literature on estuary biogeochemistry and ecosystem dynamics. Moreover, the book addresses SDG 13 (Climate Action) and 14 (Life below Water), with a focus on ecosystem services of the natural aquatic system.The book will be useful to researchers, policy makers, coastal managers and marine sustainability scientists and organizations.
This book consists of 10 Chapters in 4 Parts. The first Part is an introduction and contains Chapter 1 to introduce the book chapters to the audiences. The second Part consists of two chapters under the name, Impact of Climate Change on Crop Production and the Physiological and Biochemical Basis for Crops Tolerance. The Chapter 2 focus on critical periods of crop plants to stress conditions and the expected impacts of climate changes mainly on the productivity and quality of field crops. While, Chapter 3 highlights the foundations of crop tolerance to environmental stress and plant traits relevant to stress tolerance. It is devoted to explain and discuss mechanisms of adaptation to environmental stress conditions and addresses various plant traits related to stress environmental tolerance i.e. phenological, morpho-physiological and biochemical traits which could be used as selection criteria for crops improvement. The third Part consists of 5 Chapters under the theme "Improve Crop Adaptability and Stability to Climate Change and Modern Technology". Chapter 4 highlights the most important strategic food grain crop (wheat), Chapter 5 focuses the important staple food crop (rice), while Chapter 6 deals with one of the most important food legume crops (faba bean). Chapter 7 and 8 discuss two important oil crops (sesame and sunflower). However, Chapter 9 focuses on cotton as one of the most important fiber crops. The author addresses these crops under the following headings: genotype x environment interaction and its relation to climatic change on yield production, performance of genotypes in response to environmental changes, adaptability and yield stability to environmental conditions, additive main effects and multiplicative interaction model, gene action, genetic behavior and heritability for traits related to environmental stress tolerance, role of recent approaches, biotechnology and nanotechnology. This is besides how can measure sensitivity of genotypes to environmental stress, and finally the appropriate agricultural practices to mitigate environmental stress on crops under attention. The book ends with Chapter No. 10 where the author presents an update of the book topics, present the most important conclusions and recommendations from all chapters. This book has been prepared and supported by recent references and statistics with coloured tables and illustrations for audiences interested in crop science,environment, plant breeding, genetics and biotechnology, as well as postgraduate students and researchers in universities and research centres.
This edited volume focuses on the use of remote sensing techniques to assess and monitor mountainous ecosystems in Africa, with a focus on tracking changes related to climate change and human activity. The book is timely, as the interaction of mountain environmental dynamics with conservation and sustainability is an under-researched issue. The chapters in this volume use remotely sensed data to study a variety of topics related to mountains and their ecosystems, including but not limited to vegetation, energy systems, environmental hazards, ecosystem services, diseases, climatic shifts, geological formations and geomorphological dynamics. The ability to monitor, assess and analyze mountainous regions is aided by the availability of remote sensing products such as optical and microwave sensors and low-cost unmanned aerial vehicles (UAVs). The works presented here push the frontier of knowledge on mountain studies and will help shape local, national and global assessments and policies, including efforts toward the achievement of the African Agenda 2063. The book will be of interest to researchers and students in remote sensing, geography, ecology and sustainability, as well as to government organizations and conservation specialists.
This book relates one of the most representative species of Patagonian wildlife, the guanaco, to human societies across time, and explores how that relationship has changed over time due to different land uses and productive interests. The book provides information to understand these interactions, and contextualizes the current situation of this species. In some cases, it proposes possible solutions to conflicts, and also shows ongoing activities aimed at sustainable use and conservation. The audience for this book includes researchers, graduate students, policy makers and conservation and rural development professionals. In addition, it will serve as a tool for application authorities and field technicians on the use and conservation of wildlife, to define management actions for this species. |
You may like...
Computational & Experimental Methods in…
S. Hernandez, P. Vorobieff
Hardcover
R3,253
Discovery Miles 32 530
Language and Communication in…
Judit N. Moschkovich, David Wagner, …
Hardcover
R1,434
Discovery Miles 14 340
Sustainability in Engineering Design
Anthony Johnson, Andy Gibson
Paperback
R1,290
Discovery Miles 12 900
Smart Materials for Energy…
Igor A. Luk'yanchuk, Daoud Mezzane
Hardcover
R5,295
Discovery Miles 52 950
|