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Author : David C. Coleman
Publisher : Academic Press
ISBN 13 : 0121797260
Total Pages : 404 pages
Book Rating : 4.1/5 (217 download)
Download or read book Fundamentals of Soil Ecology written by David C. Coleman and published by Academic Press. This book was released on 2004-07-19 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher Description
Author : T.R. Southwood
Publisher : Springer Science & Business Media
ISBN 13 : 9401572917
Total Pages : 548 pages
Book Rating : 4.4/5 (15 download)
Download or read book Ecological Methods written by T.R. Southwood and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: The virtual impossibility of extracting the many different species from a habitat with equal efficiency by a single method (e.g. Nef, 1960). 1.1 Population estimates Population estimates can be classified into a number of different types; the most convenient classification is that adopted by Morris (1955), although he used the terms somewhat differently in a later paper (1960). 1.1.1 Absolute and related estimates The animal numbers may be expressed as a density per unit area of the ground of the habitat. Such estimates are given by nearest neighbour and related techniques (Chapter 2), marking and recapture (Chapter 3), by sampling a known fraction of the habitat (Chapter 4-6) and by removal sampling and random walk techniques (Chapter 7). Absolute population The number of animals per unit area (e.g. hectare, acre). It is almost impossible to construct a budget or to study mortality factors without the conversion of population estimates to absolute figures, for not only do insects often move from the plant to the soil at different developmental stages, but the amount of plant material is itself always changing. The importance of obtaining absolute estimates cannot be overemphasized.
Author : Peter A. Henderson
Publisher : Oxford University Press
ISBN 13 : 0192607030
Total Pages : 624 pages
Book Rating : 4.1/5 (926 download)
Download or read book Southwood's Ecological Methods written by Peter A. Henderson and published by Oxford University Press. This book was released on 2021-04-01 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological Methods by the late T.R. E. Southwood and revised over the years by P. A. Henderson has developed into a classic reference work for the field biologist. It provides a handbook of ecological methods and analytical techniques pertinent to the study of animals, with an emphasis on non-microscopic animals in both terrestrial and aquatic environments. It remains unique in the breadth of the methods presented and in the depth of the literature cited, stretching right back to the earliest days of ecological research. The universal availability of R as an open source package has radically changed the way ecologists analyse their data. In response, Southwood's classic text has been thoroughly revised to be more relevant and useful to a new generation of ecologists, making the vast resource of R packages more readily available to the wider ecological community. By focusing on the use of R for data analysis, supported by worked examples, the book is now more accessible than previous editions to students requiring support and ideas for their projects. Southwood's Ecological Methods provides a crucial resource for both graduate students and research scientists in applied ecology, wildlife ecology, fisheries, agriculture, conservation biology, and habitat ecology. It will also be useful to the many professional ecologists, wildlife biologists, conservation biologists and practitioners requiring an authoritative overview of ecological methodology.
Author : M.R. Carter
Publisher : CRC Press
ISBN 13 : 1420005278
Total Pages : 1264 pages
Book Rating : 4.4/5 (2 download)
Download or read book Soil Sampling and Methods of Analysis written by M.R. Carter and published by CRC Press. This book was released on 2007-08-03 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly updated and revised, this second edition of the bestselling Soil Sampling and Methods of Analysis presents several new chapters in the areas of biological and physical analysis and soil sampling. Reflecting the burgeoning interest in soil ecology, new contributions describe the growing number and assortment of new microbiological
Author : W.H. van Dobben
Publisher : Springer Science & Business Media
ISBN 13 : 9401019541
Total Pages : 297 pages
Book Rating : 4.4/5 (1 download)
Download or read book Unifying Concepts in Ecology written by W.H. van Dobben and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: The complexity of ecosystems forms perhaps the greatest challenge for natural science. Even the first step to comprehensive analysis, namely a survey of the participating species, often forms a major obstacle. This makes it understandable that ecologists try to abstract general principles from the interrelationships of the multitude of species for use in their efforts to investigate ecosystem dynamics. Such 'unifying concepts' were the main theme of the 'First International Congress of Ecology' organized in The Hague in September 1974 by the International Association of Ecology (INTECOL), under the auspices of the Division of Environmental Biology of the International Union of Biological Sciences (IUBS). This book contains the papers presented at the plenary sessions of the Congress and a summary of the discussions engendered by them. At the Congress over 800 ecologists from many countries, representing diverse disciplines such as limnology, botany, zoology, microbiology, agriculture, met together for a week. The study of ecosystem dynamics depends on mutual understanding and close cooperation, and to stimulate an integrated approach a number of main speakers were invited to contribute papers on notions such as energy flow, productivity, diversity, stability and maturity from different points of view. These invited papers were presented at the morning plenary sessions, followed by discussions.
Author : Peter A. Henderson
Publisher : John Wiley & Sons
ISBN 13 : 1118895266
Total Pages : 656 pages
Book Rating : 4.1/5 (188 download)
Download or read book Ecological Methods written by Peter A. Henderson and published by John Wiley & Sons. This book was released on 2016-02-03 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: 4th edition of this classic Ecology text Computational methods have largely been replaced by descriptions of the available software Includes procedure information for R software and other freely available software systems Now includes web references for equipment, software and detailed methodologies
Author : Manjit Singh Dhooria
Publisher : Springer
ISBN 13 : 9811015945
Total Pages : 473 pages
Book Rating : 4.8/5 (11 download)
Download or read book Fundamentals of Applied Acarology written by Manjit Singh Dhooria and published by Springer. This book was released on 2016-12-14 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acarology - the study of mites and ticks, is a subdiscipline of Zoology, and is many times considered in the field of Entomology (the study of insects). Mites and ticks are distributed throughout the world and inhabit almost every ecosystem (both terrestrial and aquatic) including grassland soils. More than 55,000 species of mites and ticks are already described. Mites and ticks directly affects humans as pests of different crops, fruit plants, vegetable crops and field crops; as parasites of human beings, veterinary animals, poultry and pets; pests of stored grains and other products; mushrooms and cheese; and as parasites of honeybees. Mite infestations are responsible for economic losses worth billions of dollars in terms of reduced crop yields and lowered quality of produce. Many species of mites serve as vectors of various plant diseases; some species of ticks cause losses through blood feeding and by transmitting many diseases among man and animals. House-dust mite allergies, and tick bite allergies are also common in many parts of the world.Present Book, "Fundamentals of Applied Acarology," is written keeping in view non-availability of any standard text dealing in different aspects of acarology at one place. Separate chapters in this book are devoted to Importance of Acarology, Historical account, acarine technology, morphology and anatomy of Acari; Feeding, Development and Reproduction. Molecular developments in relation to mites and ticks are also discussed. Role of mites and ticks in Quarantines of plants and animals; forensic/criminal investigations; and importance of accidental acarophagy are discussed in detail. Safe usage of pesticides based on their mode of action (IRAC’s Groups), development of acaricide resistance and measures to mitigate it are discussed. Mite pests of fruit trees, vegetable plants, and floricultural plants; field crops; mite problems in greenhouses/polyhouses; and mite problems encountered under organic cultivation of plants; and their management through minimum usage of pesticides are emphasized. Role of different predaceous mites in controlling plant pests like thrips, aphids and scale insects is elaborately discussed. Biological control of phytophagous mites is discussed in detail. Different animal parasitic mites and ticks are discussed from veterinary and medical point of view.At the end of each chapter, many important references for further reading; and Electronic References (ER) in the form of youtube links and other weblinks are given to understand fully how these tiny creatures look like; behave, feed and reproduce; nature of damage they cause to plants and animals; and measures to mitigate them. Weblinks will stimulate interest in the readers for more information about different mites and ticks. The knowledge contained in the book may prove as best material for "General and Applied Acarology" course for graduate and post-graduate levels, teachers and researchers in entomology, pest control advisors, professional entomologists, pesticide industry managers, policy planners, and others having interest in mites and ticks./div
Author : Emma B. Davis
Publisher : Nova Publishers
ISBN 13 : 9781600210167
Total Pages : 174 pages
Book Rating : 4.2/5 (11 download)
Download or read book Frontiers in Environmental Research written by Emma B. Davis and published by Nova Publishers. This book was released on 2006 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The environment is considered the surroundings in which an organism operates, including air, water, land, natural resources, flora, fauna, humans and their interrelation. It is this environment which is both so valuable, on the one hand, and so endangered on the other. And it is people which are by and large ruining the environment both for themselves and for all other organisms. This book reviews the latest research in this field which is vital for everyone.
Author : Robert J. Whelan
Publisher : Cambridge University Press
ISBN 13 : 0521328721
Total Pages : 364 pages
Book Rating : 4.5/5 (213 download)
Download or read book The Ecology of Fire written by Robert J. Whelan and published by Cambridge University Press. This book was released on 1995-08-10 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wildfires kill many animals, but are populations of animals affected? How do animals survive the passage of fire? Why do some tree species survive and others die in a fire? Do frequent fires cause changes in plant community composition? Answering questions such as these requires an understanding of the ecological effects of fire. Aimed at senior undergraduate students, researchers, foresters and other land managers, Dr Whelan's book examines the changes wrought by fires with reference to general ecological theory. The impacts of fires on individual organisms, populations and communities are examined separately, and emphasis is placed on the importance of fire regime. Each chapter includes a listing of 'outstanding questions' that identify gaps in current knowledge. The book finishes by summarising the major aspects of ecology that are of particular relevance to management of fires - both protection against wildfires and deliberate use of fire.
Author : United States. Forest Service
Publisher :
ISBN 13 :
Total Pages : 516 pages
Book Rating : 4.3/5 (91 download)
Download or read book GTR-WO written by United States. Forest Service and published by . This book was released on 1975 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David B. Finkelstein
Publisher : Newnes
ISBN 13 : 1483292215
Total Pages : 537 pages
Book Rating : 4.4/5 (832 download)
Download or read book Biotechnology of Filamentous Fungi written by David B. Finkelstein and published by Newnes. This book was released on 2013-10-22 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biotechnology of Filamentous Fungi: Technology and Products provides a comprehensive discussion of the molecular biology, genetics, and biochemistry of filamentous fungi. It also deals with general principles of biochemical engineering such as process design and scaleup. The book's main emphasis, however, is on the commercial significance of filamentous fungi. The book highlights the unique aspects of filamentous fungi along with those aspects common to most microorganisms studied in industries that use biotechnology. Filamentous fungi can generate a wide range of industrial products including primary metabolites such as organic acids, secondary metabolites such as ß-lactam antibiotics, nonantibiotic drugs, and enzymes for use in food production. Whole organisms such as mushrooms can be used as well as organisms used as insecticides and herbicides. Filamentous fungi also qualify as potential hosts for the secretion of certain heterogeneous proteins such as mammalian proteins. However, not all things related to fungi are beneficial. Mycotoxins products by fungi can be lethal to humans; there is also a need to develop antifungal agents to destroy fungi that can kill animals and plants. These topics are important aspects of the biotechnology of filamentous fungi and are dealt with in this text.
Author : Tracor Jitco, Inc
Publisher :
ISBN 13 :
Total Pages : 604 pages
Book Rating : 4.3/5 (91 download)
Download or read book Quality Assurance Guidelines for Biological Testing written by Tracor Jitco, Inc and published by . This book was released on 1978 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert T. Coupland
Publisher : Cambridge University Press
ISBN 13 : 9780521218672
Total Pages : 444 pages
Book Rating : 4.2/5 (186 download)
Download or read book Grassland Ecosystems of the World: Analysis of Grasslands and Their Uses written by Robert T. Coupland and published by Cambridge University Press. This book was released on 1979-05-10 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background; The nature of grassland; Problems in studying grassland ecosystems; Natural temperate grasslands; Semi-natural temperate meadows and pastures; Tropical grasslands; Arable grasslands; Croplands.
Author :
Publisher :
ISBN 13 :
Total Pages : 1732 pages
Book Rating : 4.E/5 ( download)
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Felix Müller
Publisher : Springer Science & Business Media
ISBN 13 : 9048187826
Total Pages : 450 pages
Book Rating : 4.0/5 (481 download)
Download or read book Long-Term Ecological Research written by Felix Müller and published by Springer Science & Business Media. This book was released on 2010-06-21 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecosystems change on a multitude of spatial and temporal scales. While analyses of ecosystem dynamics in short timespans have received much attention, the impacts of changes in the long term have, to a great extent, been neglected, provoking a lack of information and methodological know-how in this area. This book fills this gap by focusing on studies dealing with the investigation of complex, long-term ecological processes with regard to global change, the development of early warning systems, and the acquisition of a scientific basis for strategic conservation management and the sustainable use of ecosystems. Within this book, theoretical ecological questions of long-term processes, as well as an international dimension of long-term monitoring, observations and research are brought together. The outcome is an overview on different aspects of long-term ecological research. Aquatic, as well as terrestrial ecosystems are represented.
Author :
Publisher :
ISBN 13 :
Total Pages : 602 pages
Book Rating : 4.E/5 ( download)
Download or read book EPA-600/4 written by and published by . This book was released on 1978-08 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mark Jervis
Publisher : Springer Science & Business Media
ISBN 13 : 1402017340
Total Pages : 755 pages
Book Rating : 4.4/5 (2 download)
Download or read book Insects as Natural Enemies written by Mark Jervis and published by Springer Science & Business Media. This book was released on 2005-05-25 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past three decades there has been a dramatic increase in theoretical and practical studies on insect natural enemies. The appeal of insect predators, and parasitoids in particular, as research animals derives from the relative ease with which many species may be cultured and experimented with in the laboratory, the simple life cycles of most parasitoids, and the increasing demand for biological pest control. There is now a massive literature on insect natural enemies, so there is a great need for a general text that the enquiring student or research worker can use in deciding on approaches and techniques that are appropriate to the study and evaluation of such insects. This book fulfils that demand. A considerably updated and expanded version of a previous best-seller, it is an account of major aspects of the biology of predators and parasitoids, punctuated with information and advice on which experiments or observations to conduct, and how to carry them out. Guidance is provided, where necessary, on the literature that may need to be consulted on particular topics. While researchers can now refer to several books on parasitoids and predators, Insects as Natural Enemies is unique in emphasising practicalities. It is aimed at students and professional working in universities and both government and commercial institutes in the fields of pest management, agriculture, horticulture and forestry.
