The Ecology of Stress

The Ecology of Stress PDF Author: Stevan E. Hobfoll
Publisher: Taylor & Francis
ISBN: 9780891168454
Category : Psychology
Languages : en
Pages : 388

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Book Description

The Ecology of Stress

The Ecology of Stress PDF Author: Stevan E. Hobfoll
Publisher: Taylor & Francis
ISBN: 9780891168454
Category : Psychology
Languages : en
Pages : 388

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Book Description


Stress Ecology

Stress Ecology PDF Author: Christian E.W. Steinberg
Publisher: Springer Science & Business Media
ISBN: 9789400720725
Category : Science
Languages : en
Pages : 480

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Book Description
Not all stress is stressful; instead, it appears that stress in the environment, below the mutation threshold, is essential for many subtle manifestations of population structures and biodiversity, and has played a substantial role in the evolution of life. Intrigued by the behavior of laboratory animals that contradicted our current understanding of stress, the author and his group studied the beneficial effects of stress on animals and plants. The seemingly “crazy” animals demonstrated that several stress paradigms are outdated and have to be reconsidered. The book describes the general stress responses in microorganisms, plants, and animals to abiotic and biotic, to natural and anthropogenic stressors. These stress responses include the activation of oxygen, the biotransformation system, the stress proteins, and the metal-binding proteins. The potential of stress response lies in the transcription of genes, whereas the actual response is manifested by proteins and metabolites. Yet, not all stress responses are in the genes: micro-RNAs and epigenetics play central roles. Multiple stressors, such as environmental realism, do not always act additively; they may even diminish one another. Furthermore, one stressor often prepares the subject for the next one to come and may produce extended lifespans and increased offspring numbers, thus causing shifts in population structures. This book provides the first comprehensive analysis of the ecological and evolutionary effects of stress.

Plant Performance Under Environmental Stress

Plant Performance Under Environmental Stress PDF Author: Azamal Husen
Publisher: Springer Nature
ISBN: 3030785211
Category : Science
Languages : en
Pages : 604

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Book Description
Global climate change is bound to create a number of abiotic and biotic stresses in the environment, which would affect the overall growth and productivity of plants. Like other living beings, plants have the ability to protect themselves by evolving various mechanisms against stresses, despite being sessile in nature. They manage to withstand extremes of temperature, drought, flooding, salinity, heavy metals, atmospheric pollution, toxic chemicals and a variety of living organisms, especially viruses, bacteria, fungi, nematodes, insects and arachnids and weeds. Incidence of abiotic stresses may alter the plant-pest interactions by enhancing susceptibility of plants to pathogenic organisms. These interactions often change plant response to abiotic stresses. Plant growth regulators modulate plant responses to biotic and abiotic stresses, and regulate their growth and developmental cascades. A number of physiological and molecular processes that act together in a complex regulatory network, further manage these responses. Crosstalk between autophagy and hormones also occurs to develop tolerance in plants towards multiple abiotic stresses. Similarly, biostimulants, in combination with correct agronomic practices, have shown beneficial effects on plant metabolism due to the hormonal activity that stimulates different metabolic pathways. At the same time, they reduce the use of agrochemicals and impart tolerance to biotic and abiotic stress. Further, the use of bio- and nano-fertilizers seem to hold promise to improve the nutrient use efficiency and hence the plant yield under stressful environments. It has also been shown that the seed priming agents impart stress tolerance. Additionally, tolerance or resistance to stress may also be induced by using specific chemical compounds such as polyamines, proline, glycine betaine, hydrogen sulfide, silicon, β-aminobutyric acid, γ-aminobutyric acid and so on. This book discusses the advances in plant performance under stressful conditions. It should be very useful to graduate students, researchers, and scientists in the fields of botanical science, crop science, agriculture, horticulture, ecological and environmental science.

Encyclopedia of Environmental Science

Encyclopedia of Environmental Science PDF Author: D.E. Alexander
Publisher: Springer Science & Business Media
ISBN: 0412740508
Category : Science
Languages : en
Pages : 712

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Book Description
A strongly interdisciplinary and wide-ranging survey of the environment of life on Earth: the most authoritative and comprehensive source on environmental science to be collected together in a single volume. Unique in presenting both a basic overview and detailed information on environmental topics. Entries are arranged in an encyclopedic A-Z format and contain extensive cross-references to related entries, as well as references to primary and secondary literature. Over 370 separate entries prepared by 228 leading experts from 25 countries. Incorporates 25 substantial in-depth treatments of key areas and also includes biographies of leading scientists and environmentalists. Contains a comprehensive subject index and a citation index of all referenced authors. The Encyclopedia of Environmental Science is a multidisciplinary reference work, which crosses many fields of interest and includes a wide variety of scholarly and authoritative articles on mankind's environment. It provides information on the atmosphere, hydrosphere, biosphere and geosphere and is careful to focus on the connections between these realms and the Earth as a whole. Taken as a whole, the Encyclopedia surveys basic environmental science and applied areas of study, and is drawn from the physical sciences, life sciences and social sciences. The 228 authors from 25 different countries, many of whom are the leading authorities in their field, include biologists, ecologists, geographers, geologists, political scientists, soil scientists, hydrologists, climatologists, and representatives of many other disciplines and academic specialties. The work, which is amply referenced and cross-referenced, consists of substantial essays on major topics, medium-sized entries and short definitional entries. The shorter entries include useful biographies of leading scientists and environmentalists. The Encyclopedia will be invaluable to all readers interested in the environment of life on Earth, its past, present and future, and its physical and social dimensions. The text provides a source of well-classified basic information as well as covering the leading theories and important debates in the environmental sciences. In addition, the book also includes assessments of the future prospects for the Earth's environment in the face of pollution, population increases and the accelerating transformation of land, air, water and vegetational systems. The Encyclopedia is unique in presenting both a basic overview and detailed information on environmental topics and is suitable for the general scientific reader and the specialized environmental scientist in academic institutions, research laboratories or private practice.

Environmental Stress

Environmental Stress PDF Author: Gary W. Evans
Publisher: CUP Archive
ISBN: 9780521318594
Category : Medical
Languages : en
Pages : 404

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Book Description
A systematic 1982 on human reactions to five environmental stress factors.

Plants Under Stress

Plants Under Stress PDF Author: Hamlyn G. Jones
Publisher: Cambridge University Press
ISBN: 0521344239
Category : Medical
Languages : en
Pages : 269

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Book Description
The volume identifies how stressful conditions affect plants. Various stresses can have a major impact on plant growth and survival. This book examines some of the more important stresses, shows how they affect the plant and then reviews how new varieties or new species can be selected which are less vulnerable to stress.

Environmental Stress and Amelioration in Livestock Production

Environmental Stress and Amelioration in Livestock Production PDF Author: Veerasamy Sejian
Publisher: Springer Science & Business Media
ISBN: 3642292054
Category : Science
Languages : en
Pages : 577

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Book Description
Given the importance of livestock to the global economy, there is a substantial need for world-class reference material on the sustainable management of livestock in diverse eco-regions. With uncertain climates involving unpredictable extreme events (e.g., heat, drought, infectious disease), environmental stresses are becoming the most crucial factors affecting livestock productivity. By systematically and comprehensively addressing all aspects of environmental stresses and livestock productivity, this volume is a useful tool for understanding the various intricacies of stress physiology. With information and case studies collected and analyzed by professionals working in diversified ecological zones, this book explores the influence of the environment on livestock production across global biomes. The challenges the livestock industry faces in maintaining the delicate balance between animal welfare and production are also highlighted.

Social Adaptation to Food Stress

Social Adaptation to Food Stress PDF Author: Paul E. Minnis
Publisher: University of Chicago Press
ISBN: 0226530248
Category : Social Science
Languages : en
Pages : 257

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Book Description
Combining anthropology, archeology, and evolutionary theory, Paul E. Minnis develops a model of how tribal societies deal with severe food shortages. While focusing on the prehistory of the Rio Mimbres region of New Mexico, he provides comparative data from the Fringe Enga of New Guinea, the Tikopia of Tikopia Island, and the Gwembe Tonga of South Africa. Minnis proposes that, faced with the threat of food shortages, nonstratified societies survive by employing a series of responses that are increasingly effective but also are increasingly costly and demand increasingly larger cooperative efforts. The model Minnis develops allows him to infer, from evidence of such factors as population size, resource productivity, and climate change, the occurrence of food crises in the past. Using the Classic Mimbres society as a test case, he summarizes the regional archeological sequence and analyzes the effects of environmental fluctuations on economic and social organization. He concludes that the responses of the Mimbres people to their burgeoning population were inadequate to prevent the collapse of the society in the late twelfth century. In its illumination of the general issue of responses to food shortages, Social Adaptation to Food Stress will interest not only archeologists but also those concerned with current food shortages in the Third World. Cultural ecologists and human geographers will be able to derive a wealth of ideas, methods, and data from Minnis's work.

Biological Indicators of Aquatic Ecosystem Stress

Biological Indicators of Aquatic Ecosystem Stress PDF Author: S. Marshall Adams
Publisher: C A B International
ISBN: 9780851996301
Category : Nature
Languages : en
Pages : 644

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Book Description
*Comprehensive discussion of environmental stressors affecting aquatic ecosystems and organisms *Contributions from leading scientists in the field *Practical manual for students and researchers on the use of biocriteria *A practical guide to the use of biocriteria for assessment of the effects of environmental stressors on aquatic ecosystems and organisms, especially fish. Written by scientists who are experts in their fields, this book provides helpful information for designing and applying bioindicators in the field to reliably assess the health of aquatic organisms and ecosystems. This volume may be used as a manual for scientists, students, and others, in a variety of disciplines and applications

Water, Radiation, Salt, and Other Stresses

Water, Radiation, Salt, and Other Stresses PDF Author: Jacob Levitt
Publisher: Academic Press
ISBN:
Category : Science
Languages : en
Pages : 632

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Book Description
Conteúdo: Water, radiation, salt, and other stresses.