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

Education for Animal Welfare (Paperback, 2011 ed.): Edward N. Eadie Education for Animal Welfare (Paperback, 2011 ed.)
Edward N. Eadie
R3,961 Discovery Miles 39 610 Ships in 18 - 22 working days

This book deals with the role of education in improving animal welfare and reducing animal suffering inflicted by humans. It embraces situations in which humans have direct control over animals or interfere directly with them, but it considers also indirect animal suffering resulting from human activities. Education is regarded in the broad sense of creating awareness and facilitating change. First, consideration is given to a number of specific themes in which education can make an important contribution towards reducing animal suffering, and subsequently an examination is made of a number of interrelated contexts in which education can address the various themes. The considered educational themes are: * animal suffering and sentience that have both scientific and moral aspects * human discrimination against animals known as speciesism and the need for attitudinal change by humans * role and existing limitations of legislation in providing protection to animals * matter of enforcement of animal protection legislation * achievement of reform to improve animal protection by legislative and other means * training of professionals, carers, and users involved with animals to provide better protection* the scope for science to contribute to improved animal protection * animal protection as a regional and international issue

Monograph of the Gonostomatidae and Kahliellidae (Ciliophora, Hypotricha) (Paperback, 2011 ed.): Helmut Berger Monograph of the Gonostomatidae and Kahliellidae (Ciliophora, Hypotricha) (Paperback, 2011 ed.)
Helmut Berger
R7,758 Discovery Miles 77 580 Ships in 18 - 22 working days

The present monograph is the fourth of six volumes which review the Hypotricha, a major group of the spirotrichs. The book is about the Gonostomatidae, the Kahliellidae, and some taxa of unknown position in the hypotrichs. Gonostomum was previously misclassified in the Oxytrichidae because its type species Gonostomum affine has basically an 18-cirri pattern, which is dominant in the oxytrichids. A new hypothesis, considering also molecular data, postulates that this 18-cirri pattern evolved in the last common ancestor of the hypotrichs and therefore it appears throughout the Hypotricha tree. The simple dorsal kinety pattern, composed of only three bipolar dorsal kineties, and gene sequence analyses strongly suggest that Gonostomum branches off rather early in the phylogenetic tree. Thus, the Gonostomatidae, previously synonymised with the oxytrichids, are reactivated to include the name-bearing type genus and other genera (e.g., Paragonostomum, Wallackia, Cladotricha) which have the characteristic gonostomatid oral apparatus. The Kahliellidae are a rather vague group mainly defined via the preservation of parts of the parental infraciliature. The kahliellids preliminary comprise, besides the name-bearing type genus Kahliella, genera such as Parakahliella and its African pendant Afrokahliella or the monotypic Engelmanniella. In total 68 species distributed in 21 genera and subgenera are revised. As in the previous volumes almost all morphological, morphogenetic, molecular, faunistic, and ecological data, scattered in almost 700 papers, are compiled so that the four volumes (Oxytrichidae, Urostyloidea, Amphisiellidae and Trachelostylidae, Gonostomatidae and Kahliellida) provide a detailed insight into the biology of almost 500 species of hypotrichs. The series is an up-to-date overview about this highly interesting taxon of spirotrichous ciliates mainly addressed to taxonomists, cell biologists, ecologists, molecular biologists, and practitioners.

The Little Owl - Conservation, Ecology and Behavior of Athene Noctua (Paperback): Dries van Nieuwenhuyse, Jean-Claude Genot,... The Little Owl - Conservation, Ecology and Behavior of Athene Noctua (Paperback)
Dries van Nieuwenhuyse, Jean-Claude Genot, David H. Johnson
R1,990 Discovery Miles 19 900 Ships in 10 - 15 working days

Our understanding of the basic biology of owls is poor compared to that of other bird species. The Little Owl, Athene noctua, has become one of the best models for biological and conservation research, due to its commonness and the fact that it occupies nest-boxes very easily. In this unique book the authors synthesise the substantial literature, and detail current information regarding the Little Owl. They discuss its wide-ranging ecology, genetics and subspecies and population status by country. In addition, they outline a strategy and monitoring program for its conservation. The book features an outstanding bibliography of literature on the Little Owl, listing publications dated from 1769 to 2007, in many languages, including Russian, English, French, German, Spanish, Portuguese, Italian and Dutch. Whilst being an invaluable resource for academic researchers, its straightforward style holds undoubted appeal for amateurs and enthusiasts.

Ungulate Management in Europe - Problems and Practices (Hardcover): Rory Putman, Marco Apollonio, Reidar Andersen Ungulate Management in Europe - Problems and Practices (Hardcover)
Rory Putman, Marco Apollonio, Reidar Andersen
R3,878 Discovery Miles 38 780 Ships in 10 - 15 working days

This book considers a number of problems posed by ungulates and their management in Europe. Through a synthesis of the underlying biology and a comparison of the management techniques adopted in different countries, the book explores which management approaches seem effective and in which circumstances. Experts in a number of different areas of applied wildlife biology review various management problems and alternative solutions, including the impact of large ungulates on agriculture, forestry and conservation habitats, the impact of disease and predation on ungulate populations and the involvement of ungulates in road traffic accidents and possible measures for mitigation. This book is directed at practising wildlife managers, those involved in research to improve methods of wildlife management, and policy-makers in local, regional and national administrations.

Meat Animals - Growth and Productivity (Paperback, Softcover reprint of the original 1st ed. 1976): D. Lister Meat Animals - Growth and Productivity (Paperback, Softcover reprint of the original 1st ed. 1976)
D. Lister
R1,497 Discovery Miles 14 970 Ships in 18 - 22 working days

Dramatic shortfalls in crop production in various regions of the world have led some people to question the relatively inefficient use of cereal grains for feeding meat animals instead of their direct use for human food. There is no doubt, however, that meat offers a nutritionally valuable, attractive and widely accepted food, the world demand for which increases daily. Thus it is not enough simply to condemn the consumption of meat as an irresponsible extravagance; rather it is preferable to examine how the demand for meat can be met most efficiently and effectively, which requires a fundamental enquiry into how meat is 'grown'. The importance of fat, for instance, both to the growing animal and to the consumer, needs to be established in view of the 'expense' involved in its deposition by the animal and the extent to which it is discarded at many points in the chain from the slaughterhouse to the consumer. We were aware that there existed a wealth of information on the physiology of growth which, because of its having been collected as part of investigations in many other disciplines and the inevitable communication gap, had not been incorporated into the science of animal production. Similarly there were principles and teChniques of animal husbandry which, if known in other disciplines, might enable more pertinent questions to be asked. The biochemical and physiological pathways by which animals utilise feed to produce body protein, fat and other components are intriguing problems which are receiving considerable attention.

The Evolution of Mammalian Sociality in an Ecological Perspective (Paperback, 2014 ed.): Clara B Jones The Evolution of Mammalian Sociality in an Ecological Perspective (Paperback, 2014 ed.)
Clara B Jones
R1,698 Discovery Miles 16 980 Ships in 18 - 22 working days

This brief discusses factors associated with group formation, group maintenance, group population structure, and other events and processes (e.g., physiology, behavior) related to mammalian social evolution. Within- and between-lineages, features of prehistoric and extant social mammals, patterns and linkages are discussed as components of a possible social tool-kit . "Top-down (predators to nutrients), as well as bottom-up (nutrients to predators) effects are assessed. The present synthesis also emphasizes outcomes of Hebbian (synaptic) decisions on Malthusian parameters (growth rates of populations) and their consequences for (shifting) mean fitnesses of populations. Ecology and evolution (EcoEvo) are connected "via" the organism s norms of reaction (genotype x environment interactions; life-history tradeoffs of reproduction, survival, and growth) exposed to selection, with the success of genotypes influenced by intensities of selection as well as neutral (e.g. mutation rates) and stochastic effects. At every turn, life history trajectories are assumed to arise from decisions made by types responding to competition for limiting resources constrained by Hamilton s rule (inclusive fitness operations)."

Mosquito Vectors of Japanese Encephalitis Virus from Northern India - Role of BPD hop cage method (Paperback, 2013 ed.): Bina... Mosquito Vectors of Japanese Encephalitis Virus from Northern India - Role of BPD hop cage method (Paperback, 2013 ed.)
Bina Pani Das
R1,804 Discovery Miles 18 040 Ships in 18 - 22 working days

Japanese Encephalitis (JE), a mosquito borne disease, is the leading cause of viral encephalitis in 14 Asian countries due to its epidemic potential, high case fatality rate and increased possibility of lifelong disability in patients who recover from this dreadful disease. In spite of seriousness of the disease, still only few books are available for ready reference. Hence, this book will be useful for students, entomologists, paramedical staff and vector control managers in public health. The objective of the book is to disseminate the knowledge gained by the author from ecological studies on JE vectors undertaken in 2 endemic and 2 non endemic areas of Northern India over a period of last 15 years (1998-2012) of research in the field of ecology of mosquito vectors of JE virus initially at National Institute of Communicable Diseases (Ministry of Health & Family Welfare, Government of India), Delhi and later at Jamia Millia Islamia, a Central University, Delhi, to anyone who wishes to curtail death of children due to this dreaded disease. Of the thousand suspected JE deaths in India annually, more than 75% is contributed by Northern India wherein disease transmission failed to be explained based on entomological evidence due to inadequate mosquito surveillance tool used in determining JE vector density. In order to overcome the above problem, Dr Bina Pani Das, the author of this book, developed "BPD hop cage method", a simple, cost effective, and operationally feasible surveillance tool specially designed to capture predominantly day resting adult Cx. tritaeniorhynchus mosquitoes, the principal JE vector species in the country from land and aquatic vegetation.

Biodiversity - Threats and Conservation (Hardcover): R.C. Sobti Biodiversity - Threats and Conservation (Hardcover)
R.C. Sobti
R5,098 Discovery Miles 50 980 Ships in 10 - 15 working days

The following important aspects have been addressed: Importance of biodiversity in maintaining ecosystem balance for sustainability. Emerging role of biodiversity as source of important materials, pharmaceuticals, food etc. as such or through genetic manipulations to meet the contemporary and futuristic challenges. Impact of environment degradation on biodiversity and conservation in a changing environment. Conventional and emerging biotechnological techniques to conserve biodiversity.

Genomic, Proteomics, and Biotechnology (Hardcover): R.C. Sobti, Manishi Mukesh, Aastha Sobti Genomic, Proteomics, and Biotechnology (Hardcover)
R.C. Sobti, Manishi Mukesh, Aastha Sobti
R4,664 Discovery Miles 46 640 Ships in 10 - 15 working days

The volume thus focusses on OMICS (Genomics, proteomics, transcriptomics, metabolonomics) technologies in identifying, characterizing biodiversity Role of molecular techniques for improvement of domestic and non-domestic organisms Animal and alternative model systems (using stem cells, tissue engineering, cell free systems, 3D platforms etc.) for studying life phenomena Genetically Modified Organisms as factories for the products

The Evolutionary Ecology of Ant-Plant Mutualisms (Paperback): Andrew James Beattie The Evolutionary Ecology of Ant-Plant Mutualisms (Paperback)
Andrew James Beattie
R993 Discovery Miles 9 930 Ships in 10 - 15 working days

Mutualistic interactions between ants and plants involve rewards offered by plants and services performed by ants in a mutually advantageous relationship. The rewards are principally food and/or nest sites, and ants in turn perform a number of services for plants: they disperse and plant seeds; they protect foliage, buds, and reproductive structures from enemies such as herbivores and seed predators; they fertilize plants with essential nutrients; and they may sometimes function as pollinators. In this book, initially published in 1985, Professor Beattie reviews the fascinating natural history of ant-plant interactions, discusses the scientific evidence for the mutualistic nature of these relationships, and reaches some conclusions about the ecological and evolutionary processes that mold them. This important work explores the natural history, experimental approach, and integration with contemporary evolutionary and ecological literature of the time will appeal to a wide variety of biologists.

Fish Swimming (Paperback, Softcover reprint of the original 1st ed. 1993): J. J. Videler Fish Swimming (Paperback, Softcover reprint of the original 1st ed. 1993)
J. J. Videler
R4,008 Discovery Miles 40 080 Ships in 18 - 22 working days

Among the fishes, a remarkably wide range of biological adaptations to diverse habitats has evolved. As well as living in the conventional habitats of lakes, ponds, rivers, rock pools and the open sea, fish have solved the problems of life in deserts, in the deep sea, in the cold antarctic, and in warm waters of high alkalinity or of low oxygen. Along with these adaptations, we find the most impressive specializations of morphology, physiology and behaviour. For example we can marvel at the high-speed swimming of the marlins, sailfish and warm-blooded tunas, air-breathing in catfish and lung fish, parental care in the mouth-brooding cichlids and viviparity in many sharks and toothcarps. Moreover, fish are of considerable importance to the survival of the human species in the form of nutritious, delicious and diverse food. Rational exploitation and management of our global stocks of fishes must rely upon a detailed and precise insight of their biology. The Chapman & Hall Fish and Fisheries Series aims to present timely volumes reviewing important aspects of fish biology. Most volumes will be of interest to research workers in biology, zoology, ecology and physiology but an additional aim is for the books to be accessible to a wide spectrum of non-specialist readers ranging from undergraduates and postgraduates to those with an intrerest in industrial and commercial aspects of fish and fisheries."

The Behaviour of Pinnipeds (Paperback, Softcover reprint of the original 1st ed. 1991): D. Renouf The Behaviour of Pinnipeds (Paperback, Softcover reprint of the original 1st ed. 1991)
D. Renouf
R7,671 Discovery Miles 76 710 Ships in 18 - 22 working days

We teach our students of behavioural science that one first defines a research problem, and then the most appropriate animal is selected to investigate hypotheses. The reverse order of events is improper: a particular class of animals should not be studied for its own sake. In the case of the Pinnipeds (seals, sea lions, fur seals and walruses) the organism and the problem are essentially the same. The research questions presented in this volume in one way or another relate to survival in two worlds, the ocean for foraging, and the terrain at its edge or frozen above it for breeding. The evolution of Pinniped behaviour and the mechanisms which underlie it are a consequence of having to cope with two seemingly incompatible sets of environmental constraints. The physiological adaptations for concomitant functioning in two media with very different physical characteristics have produced correlated behav ioural modifications. The energetic demands of reproduction and foraging are idiosyncratic because each activity occurs on opposite sides of the air/water interface. As a result, the mating system must reconcile aquatic design for such functions as locomotion and thermoregulation, with the terrestrial requirements for successful pupping. Similarly, the ecology of this dual habitat prescribes the rules governing the behaviour of the neonate and its interactions with its mother."

Primate Responses to Environmental Change (Paperback, Softcover reprint of the original 1st ed. 1991): H.O. Box Primate Responses to Environmental Change (Paperback, Softcover reprint of the original 1st ed. 1991)
H.O. Box
R1,454 Discovery Miles 14 540 Ships in 18 - 22 working days

This book concerns the various ways that primates respond to environmental change. By studying these patterns of responsiveness we not only gain useful knowledge about the structural, physiological and behavioural propensities of different species, but also acquire important information relating to issues of contemporary concern, such as conservation and the management of animals in the wild as well as in various forms of captivity. For example, there is growing concern among biologists and conser vationists about the influence of habitat destruction, such as logging, on the fitness and survival of wild primates. There is also increased awareness of the need to improve the care of primates in zoos and laboratories, including the enrichment of captive environments. Further, because an increasing number of primate species are becom ing endangered, knowledge of their responsiveness to new environ ments is an essential requirement for effective breeding programmes in captivity, and for the translocation and rehabilitation of species in the wild. In theory, studies of many closely related species are required in order to consider relevant evolutionary processes, as well as to develop functional hypotheses about the adaptive significance of various biological propensities and their interrelationships in the short and longer terms."

Insect Learning - Ecology and Evolutinary Perspectives (Paperback, Softcover reprint of the original 1st ed. 1993): Daniel R.... Insect Learning - Ecology and Evolutinary Perspectives (Paperback, Softcover reprint of the original 1st ed. 1993)
Daniel R. Papaj, Alcinda C. Lewis
R5,176 Discovery Miles 51 760 Ships in 18 - 22 working days

Insect Learning is a comprehensive review of a new field. Until recently, insects were viewed as rigidly programmed automatons; now, however, it is recognized that they can learn and that their behavior is plastic. This fundamental change in viewpoint is causing a re-examination of all aspects of the relationship between insects and their environment. This change in perspective is occurring at a time of heightened interest in brain function in both vertebrates and invertebrates. Insects potentially play a major role in this expanding area. Because of their experimental tractability and genetic diversity, they provide unique opportunities for testing hypotheses on the ecology and evolution of learning. As organisms of economic importance, they are perennial objects of research by both basic and applied scientists. Insect Learning covers both social and non-social insects from multiple perspectives. The book covers mechanisms; syntheses of work on physiology, behavior, and ecology; and micro- and macroevolution. The concluding section discusses future directions for research, including applications to pest management.

The Chimpanzees of Bossou and Nimba (Paperback, 2011.): Tetsuro Matsuzawa, Tatyana Humle, Yukimaru Sugiyama The Chimpanzees of Bossou and Nimba (Paperback, 2011.)
Tetsuro Matsuzawa, Tatyana Humle, Yukimaru Sugiyama
R5,218 Discovery Miles 52 180 Ships in 18 - 22 working days

The chimpanzees of Bossou in Guinea, West Africa, form a unique community which displays an exceptional array of tool use behaviors and behavioral adaptations to coexistence with humans. This community of "Pan troglodytes verus "has contributed more than three decades of data to the field of cultural primatology, especially chimpanzees flexible use of stones to crack open nuts and of perishable tools during foraging activities. The book highlights the special contribution of the long-term research at Bossou and more recent studies in surrounding areas, particularly in the Nimba Mountains and the forest of Diecke, to our understanding of wild chimpanzees tool use, cognitive development, lithic technology and culture. This compilation of research principally strives to uncover the complexity of the mind and behavioral flexibility of our closest living relatives. This work also reveals the necessity for ongoing efforts to conserve chimpanzees in the region. Chimpanzees have shed more light on our evolutionary origins than any other extant species in the world, yet their numbers in the wild are rapidly declining. In that sense, the Bossou chimpanzees and their neighbors clearly embody an invaluable cultural heritage for humanity as a whole.

Readers can enjoy video clips illustrating unique behaviors of Bossou chimpanzees, in an exclusive DVD accompanying the hardcover or at a dedicated website described in the softcover. "

The Ecology of Freshwater Molluscs (Paperback): Robert T. Dillon The Ecology of Freshwater Molluscs (Paperback)
Robert T. Dillon
R1,676 Discovery Miles 16 760 Ships in 10 - 15 working days

This book provides a comprehensive review of the ecology of freshwater bivalves and gastropods worldwide. It deals with the ecology of these species in its broadest sense, including diet, habitat and reproductive biology, emphasising in particular the tremendous diversity of these freshwater invertebrates. Following on from these introductory themes, the author develops a life history model that unifies them, and serves as a basis for reviews of their population and community ecology, including treatments of competition, predation, parasitism and biogeography. Extensively referenced and providing a synthesis of work from the nineteenth century onwards, this book includes original analyses that seek to unify previous work into a coherent whole. It will appeal primarily to professional ecologists and evolutionary biologists, as well as to parasitologists.

Food from dry lands - An integrated approach to planning of agricultural development (Paperback, Softcover reprint of the... Food from dry lands - An integrated approach to planning of agricultural development (Paperback, Softcover reprint of the original 1st ed. 1992)
Th. Alberda, H. Van Keulen, N.G. Seligman, C.T. de Wit
R1,391 Discovery Miles 13 910 Ships in 18 - 22 working days

In the early seventies, scientists in Israel and The Netherlands started a cooperative project on actual and potential production under semi-arid conditions. In Israel research concentrated on primary production of natural pastures and small grain crops, and on the associated secondary production of small ruminants. Most of the experimental work was carried out at the Migda Experimental Farm in the semi-desert of the northern Negev where the long term average annual rainfall is 250 mm. In The Netherlands existing facilities in Wageningen were used for measuring growth, photosynthesis and transpiration of Negev pasture plants and small grains under controlled conditions, both as individual plants and as simulated swards and crops. The joint research program was initiated by the late N.H. Tadmor and A. Dovrat from Israel and by C.T. de Wit and Th. Alberda from The Netherlands and conducted by various scientists from both countries, some of whom are among the authors of this book. The experimental results first served as a basis for the development, calibration and validation of simulation models of the growth and water use of pasture and crops. Subsequently, additional models were developed, allowing incorporation of socio-economic considerations, both at the farm and regional level, so harnessing the research results for analysis of regional development possibilities."

Mismanagement of Marine Fisheries (Hardcover): Alan Longhurst Mismanagement of Marine Fisheries (Hardcover)
Alan Longhurst
R3,208 Discovery Miles 32 080 Ships in 10 - 15 working days

Longhurst examines the proposition, central to fisheries science, that a fishery creates its own natural resource by the compensatory growth it induces in the fish, and that this is sustainable. His novel analysis of the reproductive ecology of bony fish of cooler seas offers some support for this, but a review of fisheries past and present confirms that sustainability is rarely achieved. The relatively open structure and strong variability of marine ecosystems is discussed in relation to the reliability of resources used by the industrial-level fishing that became globalised during the 20th century. This was associated with an extraordinary lack of regulation in most seas, and a widespread avoidance of regulation where it did exist. Sustained fisheries can only be expected where social conditions permit strict regulation and where politicians have no personal interest in outcomes despite current enthusiasm for ecosystem-based approaches or for transferable property rights.

Animal Homing (Paperback, Softcover reprint of the original 1st ed. 1992): F. Papi Animal Homing (Paperback, Softcover reprint of the original 1st ed. 1992)
F. Papi
R5,242 Discovery Miles 52 420 Ships in 18 - 22 working days

Homing phenomena must be considered an important aspect of animal behaviour on account of their frequent occurrence, their survival value, and the variety of the mechanisms involved. Many species regularly rely on their ability to home or reach other familiar sites, but how they manage to do this is often uncertain. In many cases the goal is attained in the absence of any sensory contact, by mechanisms of indirect orientation whose complexity and sophistication have for a long time challenged the skill and patience of many researchers. A series of problems of increasing difficulty have to be overcome; researchers have to discover the nature of orienting cues, the sensory windows involved, the role of inherited and acquired information, and, eventually, how the central mechanisms process information and control motory responses. Naturally, this book emphasizes targets achieved rather than areas unexplored and mysteries unsolved. Even so, the reader will quickly realize that our knowledge of phenomena and mechanisms has progressed to different degrees in different animal groups, ranging from the mere description of homing behaviour to a satisfactory insight into some underlying mechanisms. In the last few dacades there have been promising developments in the study of animal homing, since new approaches have been tried out, and new species and groups have been investigated. Despite this, homing phenomena have not recently been the object of exhaustive reviews and there is a tendency for them to be neglected in general treatises on animal behaviour.

Ecology of Butterflies in Europe (Paperback): Josef Settele, Tim Shreeve, Martin Konvicka, Hans van Dyck Ecology of Butterflies in Europe (Paperback)
Josef Settele, Tim Shreeve, Martin Konvicka, Hans van Dyck
R1,705 Discovery Miles 17 050 Ships in 10 - 15 working days

Due to the attractiveness of butterflies, and their usefulness as model systems for biological questions, there has been a considerable amount of material written on butterfly biology, largely in Europe. This book synthesizes all relevant and recent knowledge in the field, which is a must for those making use of this taxonomic group as a model system. It is divided into five major parts which deal with habitat use, population ecology and genetics, evolutionary ecology, distribution and phylogeny, and global change and conservation. There are growing numbers of scientific projects and networks in Europe in which the use of butterflies as tools and targets for conservation is central, and application of knowledge is closely related to European cultural landscapes. However, the chapters can also be applied to a wide geographic scope. Written by an international team of experts, this timely book is suitable for students, researchers and enthusiasts.

Egg Parasitoids in Agroecosystems with Emphasis on Trichogramma (Paperback, 2010 ed.): Fernando L. Consoli, Jose R. P. Parra,... Egg Parasitoids in Agroecosystems with Emphasis on Trichogramma (Paperback, 2010 ed.)
Fernando L. Consoli, Jose R. P. Parra, Roberto A. Zucchi
R5,196 Discovery Miles 51 960 Ships in 18 - 22 working days

Egg Parasitoids in Agroecosystems with emphasis on Trichogramma was conceived to help in the promotion of biological control through egg parasitoids by providing both basic and applied information. The book has a series of chapters dedicated to the understanding of egg parasitoid taxonomy, development, nutrition and reproduction, host recognition and utilization, and their distribution and host associations. There are also several chapters focusing on the mass production and commercialization of egg parasitoids for biological control, addressing important issues such as parasitoid quality control, the risk assessment of egg parasitoids to non-target species, the use of egg parasitoids in integrated pest management programs and the impact of GMO on these natural enemies. Chapters provide an in depth analysis of the literature available, are richly illustrated, and propose future trends.

Proceedings of the 8th International Symposium on Insect-Plant Relationships (Paperback, Softcover reprint of the original 1st... Proceedings of the 8th International Symposium on Insect-Plant Relationships (Paperback, Softcover reprint of the original 1st ed. 1992)
Steph B. J. Menken, J.H. Visser, Paul Harrewijn
R1,452 Discovery Miles 14 520 Ships in 18 - 22 working days

The papers in this book are organized as follows: insect-plant communities, host-plant selection, genetics and evolution, host-plant resistance and application of transgenic plants, and multitrophic interactions. Besides seven invited papers and a paper with concluding remarks, this volume also contains the short communications of all 115 oral presentations and posters. Included too, are the summaries of four European Science Foundation workshops held over the past two years, where European scientists discussed the state-of-the-art and the future of major topics in insect-plant interactions in order to develop better integrated research programs. The field of insect-plant interactions nowadays includes almost all of biology, as well as parts of chemistry and physics. It takes a central position in biology because insects are the most abundant animal group, half of them are herbivores and they dominate all terrestrial ecosystems. Knowledge of insect-plant interactions is thus fundamental to an understanding of the evolution of life on Earth. Two major topics of worldwide concern give this field an extra dimension. First, large amounts of food crops are still lost due to insect pests. With the increasing concern for environmental pollution and the subsequent plans to drastically reduce pesticides, integrated pest management and development of resistant crops become a major focus in agriculture. The importance of the study of insect-plant relationships is thus continuously augmented. Clearly, successful pest control demands sufficient fundamental knowledge of pest-host interactions. Second, such work can contribute towards stopping or even counterbalancing the threatening biodiversity crisis thanks to an understanding of how the interaction of insects and plants has influenced and still influences the diversification and speciation (evolution) of both groups. These problems should, of course, be approached at a multitrophic level.

Parasites and Pathogens - Effects On Host Hormones and Behavior (Paperback, Softcover reprint of the original 1st ed. 1997):... Parasites and Pathogens - Effects On Host Hormones and Behavior (Paperback, Softcover reprint of the original 1st ed. 1997)
N.E. Beckage
R4,030 Discovery Miles 40 300 Ships in 18 - 22 working days

When Nancy Beckage and I first met in Lynn Riddiford's laboratory at the University of Washington in the mid 1970s, the fields of parasitology, behavior, and endocrinology were thriving and far-flung--disciplines in no serious danger of intersecting. There were rumors that they might have some common ground: Behavioural Aspects of Parasite Transmission (Canning and Wright, 1972) had just emerged, with exciting news not only of the way parasites themselves behave, but also of Machiavellian worms that caused intermediate hosts to shift fundamental responses to light and disturbance, becoming in the process more vulnerable to predation by the next host (Holmes and Bethel, 1972). Meanwhile, biologists such as Miriam Rothschild (see Dedication), G. B. Solomon (1969), and Lynn Riddiford herself (1975) had suggested that the endocrinological rami of parasitism might be subtle and pervasive. In general, however, para fications sites were viewed as aberrant organisms, perhaps good for a few just-so stories prior to turning our attention once again to real animals. In the decade that followed, Pauline Lawrence (1986a, b), Davy Jones (Jones et al., 1986), Nancy Beckage (Beckage, 1985; Beckage and Templeton, 1986), and others, including many in this volume, left no doubt that the host-parasite combination in insect systems was physiologically distinct from its unparasitized counterpart in ways that went beyond gross pathology."

Small Mammals - Their productivity and population dynamics (Paperback): F.B. Golley, K. Petrusewicz, L. Ryszowski Small Mammals - Their productivity and population dynamics (Paperback)
F.B. Golley, K. Petrusewicz, L. Ryszowski
R1,401 Discovery Miles 14 010 Ships in 10 - 15 working days

The ability of small mammals to exploit environmental resources, based upon a rapid adaptation to short-term changes in population and/or the environment, as well as to a variety of local conditions, implies a strong impact upon natural resources. The role played by small mammal consumers in the flow of energy within natural and man-modified ecosystems is therefore of equal importance to that of larger, longer-lived species which have been studied more intensively. This volume, first published in 1975, looks at small mammal populations with emphasis being placed on their ecology and energy dynamics. It discusses the most productive research techniques and research objectives. The second part of the book deals with the roles of small mammals in ecosystems ranging from the tropics to the tundra and special consideration is given to the impact of rodents on man. Research workers in the fields of mammalogy and ecology will find this an essential book and agriculturists, foresters and anyone concerned professionally with the control of small mammals will find much that is of value to their work.

Searching Behaviour - The behavioural ecology of finding resources (Paperback, Softcover reprint of the original 1st ed. 1990):... Searching Behaviour - The behavioural ecology of finding resources (Paperback, Softcover reprint of the original 1st ed. 1990)
W.J. Bell
R5,165 Discovery Miles 51 650 Ships in 18 - 22 working days

This is a book about proximate mechanisms. Although some theoreti cal structure is used to introduce the subject, the intent is to offer a comprehensive view of the mechanistic side of searching (or foraging) so as to balance the current emphasis of books on mathematical and functional models. It seems to me that the pendulum needs to swing back to studies of how animals behave, and that maybe in so doing models will become valuable again in driving experimentation. I have probably included too many examples in this book, and some are even presented in great detail. Hopefully, they provide a complete picture of the kind of animals used, the experimental setup, the kinds of data yielded, and how the data were analysed. I have done this in response to frustrating experiences of reading chapters in behavioural ecobgy books that provide insufficient information with which to evaluate an author's conclusion."

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