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Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues > Ecological science, the Biosphere

The Ocean of Tomorrow - Investment Assessment of Multi-Use Offshore Platforms: Methodology and Applications - Volume 1... The Ocean of Tomorrow - Investment Assessment of Multi-Use Offshore Platforms: Methodology and Applications - Volume 1 (Hardcover, 1st ed. 2017)
Phoebe Koundouri
R3,090 R2,721 Discovery Miles 27 210 Save R369 (12%) Shipped within 7 - 12 working days

This book develops and applies an integrated socio-economic assessment of multi-use offshore platforms in European marine locations. The sites assessed regard infrastructures in the North Sea, the Baltic Sea, the Mediterranean Sea and the Atlantic coast. The assessment uses the results from the natural and engineering sciences as inputs, boundaries and constraints to the socio-economic analysis. The content of the book develops in a step-by-step, coherent and integrated manner. The presentation and the discussion on the methodology are followed by the detailed assessment of specific multi-use offshore platforms. A detailed risk analysis follows in which the results of the socio-economic assessment are integrated. This is complemented with sensitivity analysis. The book, offers insights that result from a multi-disciplinary approach which combines a broad range of expertise in hydraulics, wind engineering, aquaculture, renewable energy, marine environment, project management, socio-economics and governance. The analysis follows views and assessment of world experts from all relevant disciplines from academia, big companies and potential investors that have joined forces in the MERMAID project (vliz.be/projects/mermaidproject). The book is a valuable reading for academics, technicians, policy-makers and relevant stakeholders.

Research Methodology: A  Guide for Researchers In Agricultural Science, Social Science and Other Related Fields (Hardcover,... Research Methodology: A Guide for Researchers In Agricultural Science, Social Science and Other Related Fields (Hardcover, 2013 ed.)
Pradip Kumar Sahu
R4,867 R3,935 Discovery Miles 39 350 Save R932 (19%) Shipped within 7 - 12 working days

This book is the outcome of more than 20 years of experience of the author in teaching and research field. The wider scope and coverage of the book will help not only the students/ researchers/professionals in the field of agriculture and allied disciplines, but also the researchers and practitioners in other fields. Written in simple and lucid language, the book would appeal to all those who are meant to be benefitted out of it. All efforts have been made to present "RESEARCH", its meaning, intention and usefulness. The book reflects current methodological techniques used in interdisciplinary research, as illustrated with many relevant worked out examples. Designing of research programme, selection of variables, collection of data and their analysis to interpret the data are discussed extensively. Statistical tools are complemented with real-life examples, making the otherwise complicated subject like statistics seem simpler. Attempts have been made to demonstrate how a user can solve the problems using simple computer-oriented programme. Emphasis is placed not only on solving the problems in various fields but also on drawing inferences from the problems. The importance of instruments and computers in research processes and statistical analyses along with their misuse/incorrect use is also discussed to make the user aware about the correct use of specific technique. In all the chapters, theories are combined with examples, and steps are enumerated to follow the correct use of the available packages like MSEXCELL, SPSS, SPAR1, SAS etc. Utmost care has been taken to present varied range of research problems along with their solutions in agriculture and allied fields which would be of immense use to readers.

Population Parameters - Estimation for Ecological Models (Paperback): Hamish Mccallum Population Parameters - Estimation for Ecological Models (Paperback)
Hamish Mccallum
R2,230 R1,573 Discovery Miles 15 730 Save R657 (29%) Shipped within 7 - 13 working days

Ecologists and environmental managers rely on mathematical models, both to understand ecological systems and to predict future system behavior. In turn, models rely on appropriate estimates of their parameters.

This book brings together a diverse and scattered literature, to provide clear guidance on how to estimate parameters for models of animal populations. It is not a recipe book of statistical procedures. Instead, it concentrates on how to select the best approach to parameter estimation for a particular problem, and how to ensure that the quality estimated is the appropriate one for the specific purpose of the modelling exercise.

Commencing with a toolbox of useful generic approaches to parameter estimation, the book deals with methods for estimating parameters for single populations. These parameters include population size, birth and death rates, and the population growth rate. For such parameters, rigorous statistical theory has been developed, and software is readily available. The problem is to select the optimal sampling design and method of analysis. The second part of the book deals with parameters that describe spatial dynamics, and ecological interactions such as competition, predation and parasitism. Here the principle problems are designing appropriate experiments and ensuring that the quantities measured by the experiments are relevant to the ecological models in which they will be used.

This book will be essential reading for ecological researchers, postgraduate students and environmental managers who need to address an ecological problem through a population model. It is accessible to anyone with an understanding of basic statistical methods and population ecology.
Unique in concentrating on parameter estimation within modelling.
Fills a glaring gap in the literature.
Not too technical, so suitable for the statistically inept.
Methods explained in algebra, but also in worked examples using commonly available computer packages (SAS, GLIM, and some more specialised packages where relvant). Some spreadsheet based examples also included.

Mycorrhizal Symbiosis in Mediterranean Environment - Importance in Ecosystem Stability & in Soil Rehabilitation Strategies... Mycorrhizal Symbiosis in Mediterranean Environment - Importance in Ecosystem Stability & in Soil Rehabilitation Strategies (Hardcover)
Mohamed Hafidi, Robin Duponnois
R3,159 R2,389 Discovery Miles 23 890 Save R770 (24%) Shipped within 7 - 12 working days

The role of mycorrhizal symbiosis has been usually related to its impact on the plant mineral nutrition and consequently on the development of the plant species. However, it has been demonstrated that this symbiotic process has a key role in ecosystem stability. Numerous recent studies have outlined the major role of mycorrhizal symbioses in ecosystem functioning and the necessity to manage this soil microbial component in order ensure the productivity of plant ecosystems and to maintain plant diversity. The main objectives of this book are to present recent results showing the expected benefits in managing the mycorrhizal symbiosis in order to ensure the conservation of endemic plant diversity and to rehabilitate degraded soils in Mediterranean areas.

Fish Population Dynamics, Monitoring, and Management - Sustainable Fisheries in the Eternal Ocean (Hardcover, 1st ed. 2018):... Fish Population Dynamics, Monitoring, and Management - Sustainable Fisheries in the Eternal Ocean (Hardcover, 1st ed. 2018)
Ichiro Aoki, Takashi Yamakawa, Akinori Takasuka
R2,443 R2,181 Discovery Miles 21 810 Save R262 (11%) Shipped within 7 - 12 working days

This book explores how we can solve the urgent problem of optimizing the use of variable, uncertain but finite fisheries resources while maintaining sustainability from a marine-ecosystem conservation perspective. It offers readers a broad understanding of the current methods and theory for sustainable exploitation of fisheries resources, and introduces recent findings and technological developments. The book is divided into three parts: Part I discusses fish stock dynamics, and illustrates how ecological processes affecting life cycles and biological interactions in marine environments lead to fish stock variability in space and time in major fish groups; small pelagic fish, demersal fish and large predatory fish. These insights shed light on the mechanisms underlying the variability in fish stocks and form the essential biological basis for fisheries management. Part II addresses the technologies and systems that monitor changes in fisheries resources and marine ecosystems using two approaches: fishery-dependent and fishery-independent data. It also describes acoustic surveys and biological sampling, as well as stock assessment methods. Part III examines management models for effectively assessing the natural variability in fisheries resources. The authors explore ways of determining the allowable catch in response to changes in stock abundance and how to incorporate ecological processes and monitoring procedures into management models. This book offers readers a broad understanding of sustainable exploitation as well as insights into fisheries management for the next generation.

Aeroecology (Hardcover, 1st ed. 2017): Phillip B. Chilson, Winifred F. Frick, Jeffrey F. Kelly, Felix Liechti Aeroecology (Hardcover, 1st ed. 2017)
Phillip B. Chilson, Winifred F. Frick, Jeffrey F. Kelly, Felix Liechti
R2,022 R1,801 Discovery Miles 18 010 Save R221 (11%) Shipped within 7 - 11 working days

This book consists of a diverse collection of chapters that seeks to broaden our fundamental understanding of the ecological function and biological importance of the Earth's lower atmosphere, which provides a huge living space for billions of animals moving within and across continents. Their migration, dispersal and foraging activities connect water and land habitats within and across continents. Drawing upon the wide-ranging experience of the authors, the book takes an inherently interdisciplinary approach that serves to introduce the reader to the topic of aeroecology, frame some of the basic biological questions that can be addressed within the context of aeroecology, and highlight several existing and emerging technologies that are being used to promote aeroecological studies. The book begins with several background chapters, that provide introduction into such topics as atmospheric science, the concept of the habitat, animal physiology, and methods of navigation. It then continues with a broad discussion of observational methods available to and used by aeroecologists. Finally, several targeted examples of aeroecological studies are presented. Following the development of the chapters, the reader is provided with a unifying framework for investigating how the dynamic properties of meteorological conditions at local, regional, and global scales affect the organisms that depend on the air for foraging and movement. Material presented in the book should be of interest to anyone wishing to gain a comprehensive understanding of the aerosphere itself and the myriad airborne organisms that inhabit and depend upon this environment for their existence. The material should be accessible to a diverse set of readers at all stages of training and across a range of research expertise.

Ecosystems and Living Resources of the Baltic Sea - Their assessment and management (Hardcover, 1st ed. 2017): Evald Ojaveer Ecosystems and Living Resources of the Baltic Sea - Their assessment and management (Hardcover, 1st ed. 2017)
Evald Ojaveer
R3,871 R3,406 Discovery Miles 34 060 Save R465 (12%) Shipped within 7 - 12 working days

This volume presents a reconstruction of the formation of the environmental conditions and biota in the present-day Baltic Sea area during the last glacial cycle and thereafter under the influence of extra-terrestrial, climatic and geological factors. Abiotic conditions in the contemporary Baltic Sea (water salinity, temperature, oxygen and light conditions, currents and other water movements) are characterized and in this background the natural regional system of the sea has been generated. Important issues are considered such as life forms in the Baltic and their dependence on the natural environment (both in the conditions of the relative stable environment and during the regime shifts), as well as anthropogenic influences and the basic differences between the areas of the World Ocean and the brackish Baltic Sea. This book also equips readers with basic principles of assessments and management of ecosystems and fish resources (including the long-term assessment and forecast on ecosystems and fish resources) and provides information on the structures of international collaboration developed in the Baltic Sea.

Spatial Ecology and Conservation Modeling - Applications with R (Hardcover, 1st ed. 2018): Robert Fletcher, Marie-Josee Fortin Spatial Ecology and Conservation Modeling - Applications with R (Hardcover, 1st ed. 2018)
Robert Fletcher, Marie-Josee Fortin
R2,694 R2,297 Discovery Miles 22 970 Save R397 (15%) Shipped within 7 - 12 working days

This book provides a foundation for modern applied ecology. Much of current ecology research and conservation addresses problems across landscapes and regions, focusing on spatial patterns and processes. This book is aimed at teaching fundamental concepts and focuses on learning-by-doing through the use of examples with the software R. It is intended to provide an entry-level, easily accessible foundation for students and practitioners interested in spatial ecology and conservation.

Olfactory Concepts of Insect Control - Alternative to insecticides - Volume 2 (Hardcover, 1st ed. 2019): Jean-Francois Picimbon Olfactory Concepts of Insect Control - Alternative to insecticides - Volume 2 (Hardcover, 1st ed. 2019)
Jean-Francois Picimbon
R3,979 R3,150 Discovery Miles 31 500 Save R829 (21%) Shipped within 7 - 12 working days

Evolution gave rise to a prominent insect diversity at every level of ecological niche. Since then, hordes of insects have threatened human and cattle health as well as most of all green lands and agricultural crops. Now, the insect problem expands from many mutant forms of yellow dengue fever mosquitoes to highly-resistant larvae of most all various phytophageous species. The tremendous expansion of insects is due not only to an increasing resistance capacity to insecticides, but also to a strong capacity for adapting to different climate and environmental changes, including global warming. Obviously insects display a number of rudimentary systems to build an extremely efficient organism to survive in a changing world. In many species, one pheromone molecule is enough to trigger mating behavior. Therefore, insects have become crucial models not only for evolutionary studies, but also for understanding specific mechanisms underlying sensory-based behaviors. Most of insect species such as ants, beetles, cockroaches, locusts, moths and mosquitoes largely rely on olfactory cues to explore the environment and find con-specifics or food sources. A conglomerate of renowned international scientific experts is gathered to expose the insect problem on the various continents of the planet and propose an alternative to the use of toxic insecticides. Sex pheromones, specific chemical signals necessary for reproduction, and pheromone detection in insects are described with full details of the olfactory mechanisms in the antennae and higher centers in the brain. Thus, new synthetic pheromones and/or plant odors with specific molecular target sites in the insect olfactory system are proposed for sustainable development in agricultural and entomological industries. Disrupting insect pheromone channels and plant odor detection mechanisms is solemnly envisioned as a unique way to control invasive insect pest species while preserving human and environment safety.

Behaviors of Trace Metals in Environment - The Pollution in Regional and Metropolis Areas (Hardcover, 1st ed. 2020): Hui Zhang Behaviors of Trace Metals in Environment - The Pollution in Regional and Metropolis Areas (Hardcover, 1st ed. 2020)
Hui Zhang
R2,447 R1,993 Discovery Miles 19 930 Save R454 (19%) Shipped within 7 - 12 working days

This book focuses on the behavior and impact of trace metals in the environment by studying typical cases from China such as the Hetao Area of the Yellow River, Shanghai, and Nanjing. Based on samples and experiments on the behavior of pollutants, it systematically discusses the regulation of trace metals' distribution, accumulation, and migration, associated with the cause of formation demonstration. The author subsequently uses the acquired data to review the evolving trend of trace metal behaviors in natural systems (river or lake water, sediments, and soils), develops suggestions for the prevention of their negative effects, and devise treatments. Moreover, he proposes solutions to difficult research issues such as trace metal speciation extraction, and an analysis, along with operational procedures. Given its scope, the book will provide a valuable guide for researchers and engineers in relevant disciplines of the environmental sciences and engineering, and for environmental policymakers to consult in practices.

Essentials of Ecology (Paperback, 4th Edition): Michael Begon, Robert Warren Howarth Essentials of Ecology (Paperback, 4th Edition)
Michael Begon, Robert Warren Howarth
R4,639 R599 Discovery Miles 5 990 Save R4,040 (87%) Shipped within 7 - 13 working days

Essentials of Ecology, 4th Edition presents introductory ecology in an accessible, state-of-the-art format designed to cultivate the novice student's understanding of, and fascination with, the natural world. This new edition has been updated throughout, with new, full-color illustrations, and comes with an accompanying website with downloadable illustrations, multiple-choice questions, and interactive models.

Ecological Reviews - Trait-Mediated Indirect Interactions: Ecological and Evolutionary Perspectives (Hardcover, New): Takayuki... Ecological Reviews - Trait-Mediated Indirect Interactions: Ecological and Evolutionary Perspectives (Hardcover, New)
Takayuki Ohgushi, Oswald J. Schmitz, Robert D Holt
R1,758 R1,651 Discovery Miles 16 510 Save R107 (6%) Shipped within 7 - 12 working days

There is increasing evidence that the structure and functioning of ecological communities and ecosystems are strongly influenced by flexible traits of individuals within species. A deep understanding of how trait flexibility alters direct and indirect species interactions is crucial for addressing key issues in basic and applied ecology. This book provides an integrated perspective on the ecological and evolutionary consequences of interactions mediated by flexible species traits across a wide range of systems. It is the first volume synthesizing the rapidly expanding research field of trait-mediated indirect effects and highlights how the conceptual framework of these effects can aid the understanding of evolutionary processes, population dynamics, community structure and stability, and ecosystem function. It not only brings out the importance of this emerging field for basic ecological questions, but also explores the implications of trait-mediated interactions for the conservation of biodiversity and the response of ecosystems to anthropogenic environmental changes.

How to be a Quantitative Ecologist - The 'A to R' of Green Mathematics and Statistics (Paperback, New): Jason... How to be a Quantitative Ecologist - The 'A to R' of Green Mathematics and Statistics (Paperback, New)
Jason Matthiopoulos
R969 R706 Discovery Miles 7 060 Save R263 (27%) Shipped within 7 - 13 working days

Ecological research is becoming increasingly quantitative, yet students often opt out of courses in mathematics and statistics, unwittingly limiting their ability to carry out research in the future. This textbook provides a practical introduction to quantitative ecology for students and practitioners who have realised that they need this opportunity.

The text is addressed to readers who haven't used mathematics since school, who were perhaps more confused than enlightened by their undergraduate lectures in statistics and who have never used a computer for much more than word processing and data entry. From this starting point, it slowly but surely instils an understanding of mathematics, statistics and programming, sufficient for initiating research in ecology. The book's practical value is enhanced by extensive use of biological examples and the computer language R for graphics, programming and data analysis.

Key Features: Provides a complete introduction to mathematics statistics and computing for ecologists.Presents a wealth of ecological examples demonstrating the applied relevance of abstract mathematical concepts, showing how a little technique can go a long way in answering interesting ecological questions.Covers elementary topics, including the rules of algebra, logarithms, geometry, calculus, descriptive statistics, probability, hypothesis testing and linear regression.Explores more advanced topics including fractals, non-linear dynamical systems, likelihood and Bayesian estimation, generalised linear, mixed and additive models, and multivariate statistics.R boxes provide step-by-step recipes for implementing the graphical and numerical techniques outlined in each section.

"How to be a Quantitative Ecologist" provides a comprehensive introduction to mathematics, statistics and computing and is the ideal textbook for late undergraduate and postgraduate courses in environmental biology.

"With a book like this, there is no excuse for people to be afraid of maths, and to be ignorant of what it can do."
--Professor Tim Benton, Faculty of Biological Sciences, University of Leeds, UK

Ecological Reviews - Conflicts in Conservation: Navigating Towards Solutions (Hardcover): Stephen M. Redpath, R. J. Gutierrez,... Ecological Reviews - Conflicts in Conservation: Navigating Towards Solutions (Hardcover)
Stephen M. Redpath, R. J. Gutierrez, Kevin A. Wood, Juliette C. Young
R1,709 R1,604 Discovery Miles 16 040 Save R105 (6%) Shipped within 7 - 12 working days

Conflicts over the conservation of biodiversity are increasing and are serious obstacles to wildlife conservation efforts worldwide. Changing patterns in land use, over-exploitation, pollution, climate change and the threat posed by invasive species all challenge the way we currently maintain and protect biodiversity - from the local management of single species to the international management of resources. Integrating approaches from different academic disciplines, policy makers and practitioners, this volume offers a radically new, cross-disciplinary, multi-scale approach to deal with conflicts. Groundbreaking strategies for conservation are analysed and a large section of the book is devoted to exploring case studies of conflict from around the world. Aimed primarily at academics, researchers and students from disciplines relating to conservation, ecology, natural resources management and environmental governance, this book will be equally valuable to conservation NGOs and practitioners, and the policy community at national and international levels.

Trade-offs in Conservation - Deciding What to Save (Paperback, New): Nigel Leader-Williams, William M. Adams, Robert J. Smith Trade-offs in Conservation - Deciding What to Save (Paperback, New)
Nigel Leader-Williams, William M. Adams, Robert J. Smith
R1,305 R937 Discovery Miles 9 370 Save R368 (28%) Shipped within 7 - 13 working days

This book demonstrates that trade-offs can be very important for conservationists. Its various chapters show how and why trade-offs are made, and why conservationists need to think very hard about what, if anything, to do about them. The book argues that conservationists must carefully weigh up, and be explicit about, the trade-offs that they make every day in deciding what to save.

Key Features: Discusses the wider non-biological issues that surround making decisions about which species and biogeographic areas to prioritise for conservationFocuses on questions such as: What are these wider issues that are influencing the decisions we make? What factors need to be included in our assessment of trade-offs? What package of information and issues do managers need to consider in making a rational decision? Who should make such decisions?Part of the "Conservation Science and Practice" book series

This volume is of interest to policy-makers, researchers, practitioners and postgraduate students who are concerned about making decisions that include recognition of trade-offs in conservation planning.

Austral Ark - The State of Wildlife in Australia and New Zealand (Hardcover): Adam Stow, Norman Maclean, Gregory I. Holwell Austral Ark - The State of Wildlife in Australia and New Zealand (Hardcover)
Adam Stow, Norman Maclean, Gregory I. Holwell
R1,029 Discovery Miles 10 290 Shipped within 7 - 12 working days

Australia and New Zealand are home to a remarkable and unique assemblage of flora and fauna. Sadly though, by virtue of their long isolation, and a naive and vulnerable biota, both countries have suffered substantial losses to biodiversity since European contact. Bringing together the contributions of leading conservation biologists, Austral Ark presents the special features and historical context of Austral biota, and explains what is being conserved and why. The threatening processes occurring worldwide are discussed, along with the unique conservation problems faced at regional level. At the same time, the book highlights many examples of conservation success resulting from the innovative solutions that have been developed to safeguard native species and habitats in both New Zealand and Australia. Austral Ark fills an important gap regarding wildlife gains and declines, and how best to take conservation forward to keep this extraordinary area of the world thriving."

Ecological Reviews - Trophic Ecology: Bottom-Up and Top-Down Interactions across Aquatic and Terrestrial Systems (Paperback):... Ecological Reviews - Trophic Ecology: Bottom-Up and Top-Down Interactions across Aquatic and Terrestrial Systems (Paperback)
Torrance C. Hanley, Kimberly J. La Pierre
R840 Discovery Miles 8 400 Shipped within 7 - 12 working days

As researchers try to predict the effects of human modification at all trophic levels and mediate the impact of rapid environmental change, it has become clear it is no longer a matter of agreeing that both bottom-up and top-down forces play important roles in diverse ecosystems. Rather, the question is: how do these forces interact across aquatic and terrestrial systems? Written by leading experts in the field, this book presents a unique synthesis of trophic relationships within and across ecosystems that is a valuable foundation for the development of cross-system, multidisciplinary research. It also provides new insights into population biology and community ecology and examines the interactive effects of bottom-up and top-down forces on biodiversity at each trophic level. A one-stop resource for learning about bottom-up and top-down interactions, this book encourages discussion and collaboration among researchers to identify similarities and differences in trophic interactions across aquatic and terrestrial systems.

Air Pollution Impacts on Plants in East Asia (Hardcover, 1st ed. 2017): Takeshi Izuta Air Pollution Impacts on Plants in East Asia (Hardcover, 1st ed. 2017)
Takeshi Izuta
R3,243 R2,878 Discovery Miles 28 780 Save R365 (11%) Shipped within 7 - 12 working days

This is the only book to offer an up-to-date overview of air pollution in East Asia and the effects of air pollutants such as ozone, acid deposition and aerosols on Asian crops and trees. It is unique in that it discusses the fundamentals of environmental plant science and research advances in the area at the plant ecophysiology level. It addresses various topics, including gaseous air pollutants such as ozone; soil acidification and atmospheric nitrogen deposition due to acid deposition; PM2.5 and the effects of air pollutants on growth, yield and physiological functions such as photosynthesis of crops and trees in East Asia. It is a valuable resource for environmental scientists, plant scientists, government officials, industrialists, environmentalists, undergraduate and graduate students and anyone interested in the application of the latest findings to agricultural production and protection of forest ecosystems in Asia. It also provides useful information for professionals involved in research, development, production, processing and marketing of agricultural products, including those in developing countries who are interested in advanced environmental science in this field.

The New Ecology - Rethinking a Science for the Anthropocene (Hardcover): Oswald J. Schmitz The New Ecology - Rethinking a Science for the Anthropocene (Hardcover)
Oswald J. Schmitz
R617 R476 Discovery Miles 4 760 Save R141 (23%) Shipped within 7 - 12 working days

Our species has transitioned from being one among millions on Earth to the species that is single-handedly transforming the entire planet to suit its own needs. In order to meet the daunting challenges of environmental sustainability in this epoch of human domination--known as the Anthropocene--ecologists have begun to think differently about the interdependencies between humans and the natural world. This concise and accessible book provides the best available introduction to what this new ecology is all about--and why it matters more than ever before. Oswald Schmitz describes how the science of ecology is evolving to provide a better understanding of how human agency is shaping the natural world, often in never-before-seen ways. The new ecology emphasizes the importance of conserving species diversity, because it can offer a portfolio of options to keep our ecosystems resilient in the face of environmental change. It envisions humans taking on new roles as thoughtful stewards of the environment to ensure that ecosystems have the enduring capacity to supply the environmental services on which our economic well-being--and our very existence--depend. It offers the ecological know-how to maintain and enhance our planet's environmental performance and ecosystem production for the benefit of current and future generations. Informative and engaging, The New Ecology shows how today's ecology can provide the insights we need to appreciate the crucial role we play in this era of unprecedented global environmental transition.

Cave Ecology (Hardcover, 1st ed. 2018): Oana Teodora Moldovan, Lubomir Kovac, Stuart Halse Cave Ecology (Hardcover, 1st ed. 2018)
Oana Teodora Moldovan, Lubomir Kovac, Stuart Halse
R4,007 R3,484 Discovery Miles 34 840 Save R523 (13%) Shipped within 7 - 12 working days

Cave organisms are the `monsters' of the underground world and studying them invariably raises interesting questions about the ways evolution has equipped them to survive in permanent darkness and low-energy environments. Undertaking ecological studies in caves and other subterranean habitats is not only challenging because they are difficult to access, but also because the domain is so different from what we know from the surface, with no plants at the base of food chains and with a nearly constant microclimate year-round. The research presented here answers key questions such as how a constant environment can produce the enormous biodiversity seen below ground, what adaptations and peculiarities allow subterranean organisms to thrive, and how they are affected by the constraints of their environment. This book is divided into six main parts, which address: the habitats of cave animals; their complex diversity; the environmental factors that support that diversity; individual case studies of cave ecosystems; and of the conservation challenges they face; all of which culminate in proposals for future research directions. Given its breadth of coverage, it offers an essential reference guide for graduate students and established researchers alike.

The Theory of Island Biogeography (Paperback, Revised edition): Robert Helmer MacArthur, Edward O. Wilson The Theory of Island Biogeography (Paperback, Revised edition)
Robert Helmer MacArthur, Edward O. Wilson; Preface by Edward O. Wilson
R1,262 R936 Discovery Miles 9 360 Save R326 (26%) Shipped within 7 - 12 working days

Biogeography was stuck in a "natural history phase" dominated by the collection of data, the young Princeton biologists Robert H. MacArthur and Edward O. Wilson argued in 1967. In this book, the authors developed a general theory to explain the facts of island biogeography. The theory builds on the first principles of population ecology and genetics to explain how distance and area combine to regulate the balance between immigration and extinction in island populations. The authors then test the theory against data. "The Theory of Island Biogeography" was never intended as the last word on the subject. Instead, MacArthur and Wilson sought to stimulate new forms of theoretical and empirical studies, which will lead in turn to a stronger general theory. Even a third of a century since its publication, the book continues to serve that purpose well. From popular books like David Quammen's "Song of the Dodo" to arguments in the professional literature, "The Theory of Island Biogeography" remains at the center of discussions about the geographic distribution of species. In a new preface, Edward O. Wilson reviews the origins and consequences of this classic book.

Ecological Reviews - Island Colonization: The Origin and Development of Island Communities (Paperback, New): Ian Thornton Ecological Reviews - Island Colonization: The Origin and Development of Island Communities (Paperback, New)
Ian Thornton; Edited by Tim R. New; Series edited by Nigel R. Webb, T. Hefin Jones, James H. Brown, …
R887 Discovery Miles 8 870 Shipped within 7 - 12 working days

New or recently sterilized islands (for example through volcanic activity), provide ecologists with natural experiments in which to study colonization, development and establishment of new biological communities. Studies carried out on islands like this have provided answers to fundamental questions as to what general principles are involved in the ecology of communities and what processes underlie and maintain the basic structure of ecosystems. These studies are vital for conservation biology, especially when evolutionary processes need to be maintained in systems in order to maintain biodiversity. The major themes are how animal and plant communities establish, particularly on 'new land' or following extirpations by volcanic activity. This book comprises a broad review of island colonization, bringing together succession models and general principles, case studies with which Professor Ian Thornton was intimately involved, and a synthesis of ideas, concluding with a look to the future for similar studies.

Principles of Terrestrial Ecosystem Ecology (Paperback, 2nd ed. 2012): F.Stuart Chapin, Pamela A Matson, Peter M. Vitousek Principles of Terrestrial Ecosystem Ecology (Paperback, 2nd ed. 2012)
F.Stuart Chapin, Pamela A Matson, Peter M. Vitousek; Illustrated by M.C. Chapin
R1,262 R1,142 Discovery Miles 11 420 Save R120 (10%) Shipped within 7 - 12 working days

Ecosystem ecology sees living organisms, including people and the elements of their environment, as part of a single integrated system. The comprehensive coverage in this textbook examines the central processes at work, including their freshwater components. Features review questions at the end of each chapter; Includes suggestions for recommended reading; Provides a glossary of ecological terms; Has a wide audience as a textbook for advanced undergraduate students, graduate students and as a reference for practicing scientists from a wide array of disciplines

What Should a Clever Moose Eat? - Natural History, Ecology, and the North Woods (Paperback): John Pastor What Should a Clever Moose Eat? - Natural History, Ecology, and the North Woods (Paperback)
John Pastor
R530 R467 Discovery Miles 4 670 Save R63 (12%) Shipped within 7 - 12 working days

How long should a leaf live? When should blueberries ripen? And what should a clever moose eat? Questions like these may seem simple or downright strange, yet they form the backbone of natural history, a discipline that fostered some of our most important scientific theories, from natural selection to glaciation. Through careful, patient observations of the organisms that live in an area, their distributions, and how they interact with other species, we gain a more complete picture of the world around us, and our place in it. In What Should a Clever Moose Eat?, John Pastor explores the natural history of the North Woods, an immense and complex forest that stretches from the western shore of Lake Superior to the far coast of Newfoundland. The North Woods is one of the most ecologically and geologically interesting places on the planet, with a host of natural history questions arising from each spruce or sugar maple. From the geological history of the region to the shapes of leaves and the relationship between aspens, caterpillars, and predators, Pastor delves into a captivating range of topics as diverse as the North Woods themselves. Through his meticulous observations of the natural world, scientists and non-scientists alike learn to ask natural history questions and form their own theories, gaining a greater understanding of and love for the North Woods, and other natural places precious to them. In the tradition of Charles Darwin and Henry David Thoreau, John Pastor is a joyful observer of nature who makes sharp connections and moves deftly from observation to theory. Take a walk in John Pastor's North Woods, you'll come away with a new appreciation for details, for the game trails, beaver ponds, and patterns of growth around you, and won't look at the natural world in the same way again.

Olfactory Concepts of Insect Control - Alternative to insecticides - Volume 1 (Hardcover, 1st ed. 2019): Jean-Francois Picimbon Olfactory Concepts of Insect Control - Alternative to insecticides - Volume 1 (Hardcover, 1st ed. 2019)
Jean-Francois Picimbon
R3,093 R2,368 Discovery Miles 23 680 Save R725 (23%) Shipped within 7 - 12 working days

Evolution gave rise to a prominent insect diversity at every level of ecological niche. Since then, hordes of insects have threatened human and cattle health as well as most of all green lands and agricultural crops. Now, the insect problem expands from many mutant forms of yellow dengue fever mosquitoes to highly-resistant larvae of most all various phytophageous species. The tremendous expansion of insects is due not only to an increasing resistance capacity to insecticides, but also to a strong capacity for adapting to different climate and environmental changes, including global warming. Obviously insects display a number of rudimentary systems to build an extremely efficient organism to survive in a changing world. In many species, one pheromone molecule is enough to trigger mating behavior. Therefore, insects have become crucial models not only for evolutionary studies, but also for understanding specific mechanisms underlying sensory-based behaviors. Most of insect species such as ants, beetles, cockroaches, locusts, moths and mosquitoes largely rely on olfactory cues to explore the environment and find con-specifics or food sources. A conglomerate of renowned international scientific experts is gathered to expose the insect problem on the various continents of the planet and propose an alternative to the use of toxic insecticides. Sex pheromones, specific chemical signals necessary for reproduction, and pheromone detection in insects are described with full details of the olfactory mechanisms in the antennae and higher centers in the brain. Thus, new synthetic pheromones and/or plant odors with specific molecular target sites in the insect olfactory system are proposed for sustainable development in agricultural and entomological industries. Disrupting insect pheromone channels and plant odor detection mechanisms is solemnly envisioned as a unique way to control invasive insect pest species while preserving human and environment safety.

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