Download or read book Earthworms written by Sajal Ray and published by . This book was released on 2018 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthworms The Ecological Engineers of Soil written by Sajal Ray and published by . This book was released on 2018 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book in two sections represents the current trend of research in ecology and biology of earthworms. In section ""Ecology and Diversity"" the authors reported the ecological and geographical uniqueness and diversity of earthworms in different environmental terrains of Siberia and Mexico. Functional interaction between earthworms and soil nematodes was elucidated with reference to vermicomposting and agricultural systems. Importance of digital library was highlighted for inventorization and taxonomical identification of earthworms. In section ""Vermicomposting"" the importance of maintaining pure cultures was discussed from the viewpoint of growth rate and the reproduction of composting species. This section includes article describing the management-related issues like roles of physicochemical parameters of soil and feed mixture on growth and reproduction of commercially important species of earthworm.
Download or read book Biology of Earthworms written by Ayten Karaca and published by Springer Science & Business Media. This book was released on 2010-11-09 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthworms, which belong to the order Oligochaeta, comprise roughly 3,000 species grouped into five families. Earthworms have been called ‘ecosystem engineers’; much like human engineers, they change the structure of their environments. Earthworms are very versatile and are found in nearly all terrestrial ecosystems. They play an important role in forest and agricultural ecosystems. This Soil Biology volume describes the various facets of earthworms, such as their role in soil improvement, soil structure, and the biocontrol of soil-borne plant fungal diseases. Reviews discuss earthworms’ innate immune system, molecular markers to address various issues of earthworm ecology, earthworm population dynamics, and the influences of organic farming systems and tillage. Further topics include the characteristics of vermicompost, relationships between soil earthworms and enzymes, the role of spermathecae, copulatory behavior, and adjustment of the donated sperm volume.
Download or read book Earthworms written by Kenneth Ernest Lee and published by . This book was released on 1985 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthworms and their environment; The physical environment; Phenology; Populations and association; Ecological energetics; Predators, parasites and pathogens; Dispersal; Altitudinal zonation; Physical effects on soils; chemical effects on soils; Earthworms and pedogenesis; Earthworms and plant growth; Earthworms and land use practices; Use of earthworms for waste disposal; Earthworms; as a protein source.
Download or read book Biology and Ecology of Earthworms written by Clive A. Edwards and published by Springer Science & Business Media. This book was released on 1996 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes earthworm community ecology, interactions between earthworms and microorganisms and the importance of earthworms in environmental management
Download or read book Earthworm Ecology and Biogeography in North America written by Paul F. Hendrix and published by CRC Press. This book was released on 1995-02-22 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is generally recognized that where earthworms are abundant they can exert significant influence on the structure and function of soils. Compared to other biogeographic regions of Earth, however, surprisingly little is known about the earthworm fauna of the western hemisphere and their role in soil processes. This book is the first comprehensive review and analysis of the state of understanding of earthworm biogeography and ecology in North America. Topics of in-depth discussion include earthworm systematics, biogeography and ecology, influences on soil structure and ecosystem nutrient dynamics, and implications for ecosystem management. Each chapter provides a general review and statement of current understanding, an assessment of current research problems, recent developments and advances, and priorities for future research and applications. This book is a must for researchers and students studying the soil-related facets of terrestrial ecology.
Download or read book Earthworms and Their Ecological Significance written by Adarsh Pal Vig and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The earthworm has been known since ancient times for its valuable services to soil fertility management and litter nutrient cycling. The Greek philosopher Aristotle named earthworm "the guts of the soil" because of its direct role in soil formation through gut fragmentation of large soil particles, forming fine soil aggregates rich in organic matter. The famous natural scientist Charles Darwin also described the importance of earthworms in the natural world and he wrote the document entitled "The Formation of Vegetable Mould Through the Action of Worms with Observation on Their Habits" in 1881, observing that "worms have played a more important part in the history of the world than most persons would at first suppose". During the last 30-40 years, earthworms have been studied intensively in the various disciplines of animal ecology, pedology, waste recycling, agriculture science, soil biology and chemistry, ecotoxicology, and pharmaceutical sciences. Because of their importance in soil and below-ground ecology, earthworms have been designated as "ecosystem engineers". Soil fertility maintenance, soil litter decomposition, soil microbial communities and other detritus community structures and their function are directly or indirectly affected by earthworms' presence in soils. Apart from that, earthworms have appeared as a promising tool to recycle nutrients from various kinds of organic waste substances and stabilization of industrial sledges. Vermicomposting could be a valuable and low-cost technique for farmers for onsite waste management and nutrient-rich manure production. Scientists are always looking for new species for solid waste management. Thus, scientists around the world are working on earthworm biodiversity assessment and evaluation of their ecosystem services and value addition in other environmental management sectors. Efforts have been made in this edited volume to compile recent advancements in earthworm biology and their promising services in different fields of environmental management and resource conservations. This book contains three sub-sections: earthworm ecology, vermicomposting, and earthworm ecotoxicology. A total of 17 chapters are included in this edited volume. In the first section two chapters cover phylogeny and distribution of earthworm, and distribution of earthworm in Canadian ecozones; in the second section a total of seven chapters are included describing the role of vermitechnology in bioremediation of agriculture waste, pharmaceutical waste substances, industrial sludge stabilizations, and soil nutrient supply; and the third section includes eight chapters describing the effect of various hazardous substances like pesticides, microplastics, heavy metals, and neonicotinoids on earthworm growth, survival, reproduction and toxicity. In the end, we acknowledge the people and family members who are directly or indirectly associated with the compilation of this book. Without their moral and technical support, this book would not see the light of day.
Download or read book Earthworm Ecology written by Clive A. Edwards and published by CRC Press. This book was released on 2004-03-29 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthworm Ecology, Second Edition updates the most comprehensive work available on earthworm ecology with extensive revisions of the original chapters. New chapters analyze the history of earthworm research, the importance of earthworms as representatives of soil fauna and how they affect plant growth, the effects of the invasion of exotic earthworms into North America and other regions, and vermiculture and vermicomposting in Europe.This well-illustrated, expansive study examines the important and often overlooked impact earthworms have on the environment. It discusses the impact of climate, soil properties, predation, disease and parasitism, and competition upon earthworm ecology.
Download or read book Earthworms and Ecological Processes written by Yahya Kooch and published by Springer. This book was released on 2024-09-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthworms are the most important members of the soil detritivore community and function as soil engineers because of their effects on soil properties and their influence on the availability of resources for other organisms, including microorganisms and plants. Soil productivity and plant growth are strongly affected by biological activities of earthworms. They act on soil structures through creation of burrows which facilitate water and gas transport, incorporation of litter into soil, mixing of soil minerals, organic materials and breaking down of soil organic matter, ejection of surface and or subsurface casts. Earthworms have positive effects on the soil fabric and on the decomposition and mineralization of litter by breaking down organic matter and producing large amounts of feaces, thereby mixing litter with the mineral soil. Therefore, they play an important part humus form changes according to the patterns of plant communities succession. Consequently, they are also good bio-indicators for soil and site quality, and are thus useful when planning ecosystem function improvements. Earthworm's populations are indicators in degraded regions and in soil reclamations. Aristole called them "intestines of the earth" and the eminent nineteenth century biologist, Charles Darwin, spent many years observing their major influence on humus formation and soil transport . However, the links between their impacts on the soil environment and the resulting modification of natural selection pressures on engineers as well as on other organisms have received little attention. Based on papers recently published in the Science journal, Phillips et al. (2019) document an impressive group effort by 141 researchers from 35 countries to develop a global-scale atlas of earthworms. In addition, Fierer (2019) described the earthworms’ place on earth. So, Darwin’s legacy continues. Despite the vast increase in scientific literature on earthworms in recent years, much remains to be known of their basic biology, ecology and functioning. In this book we summarized the current knowledge in relation to ecological processes involved with earthworms in croplands, rangelands, forests and urban soils.
Download or read book Earthworm Ecology written by J. Satchell and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'Darwin cleared: official' This 1982 Times (7 January) head line of a first leader, reporting the astonishing case brought in Arkansas against compulsory teaching of a biblical account of creation, hopefully set at rest doubts about Darwin in the minds of a public confused by media presentations of such unfamiliar concepts as punctuated equilibria, cladism and phenetics. Mud sticks, but Darwin's perturbed ghost may have found some consolation in the concurrent celebrations at Grange-over-Sands, a modest township in Cumbria, UK, of the centenary of the publication of his less controversial book The Formation of Vegetable Mould through the Action of Worms. In the form of a symposium on earthworm ecology, this attracted some 150 participants, predominantly adrenalin-charged research workers in the full heat of peer-group interaction. This book comprises a selection of the more ecologically oriented papers contributed to the symposium, brutally edited in the interests of brevity and thematic continuity. The book opens with an appraisal of Darwin's earthworm work in its historical and philosophical context and relates his views on 'vegetable mould' to current concepts of humus formation. Thereafter, quotations from Darwin made out of piety have been rigorously excluded. Subsequent sections each comprise a review chapter and two or three 'case studies' presenting new data on a related topic.
Download or read book Hydrogeology Chemical Weathering and Soil Formation written by Allen Hunt and published by John Wiley & Sons. This book was released on 2021-04-06 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores soil as a nexus for water, chemicals, and biologically coupled nutrient cycling Soil is a narrow but critically important zone on Earth's surface. It is the interface for water and carbon recycling from above and part of the cycling of sediment and rock from below. Hydrogeology, Chemical Weathering, and Soil Formation places chemical weathering and soil formation in its geological, climatological, biological and hydrological perspective. Volume highlights include: The evolution of soils over 3.25 billion years Basic processes contributing to soil formation How chemical weathering and soil formation relate to water and energy fluxes The role of pedogenesis in geomorphology Relationships between climate soils and biota Soils, aeolian deposits, and crusts as geologic dating tools Impacts of land-use change on soils The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals. Find out more about this book from this Q&A with the Editors
Download or read book Earthworms for Ecology and Profit written by Ronald E. Gaddie and published by Bookworm Publishing Company, Incorporated. This book was released on 1976 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rediscovering Earthworms written by C.S.K. Mishra and published by Cambridge Scholars Publishing. This book was released on 2021-01-04 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a concise and well-illustrated treatment of the conventional knowledge and modern utilities of earthworms. The first two chapters deal with earthworm morphology, food relationship, behavior, functional role, interaction with soil biota, and the influence of environmental factors. Earthworms found in the tropics and sub-tropics are also discussed in this section. The third chapter provides a good account of utilizing species of worms to produce high value manure through vermitechnology and its application in agriculture. The nutritional and medicinal values of earthworms are illustrated in the fourth chapter, while the fifth c provides information on how earthworms are used successfully as indicators of ecological perturbations, soil quality and for remediation of contaminated soils. The book will immensely benefit students, faculty and researchers in biological, agricultural and environmental sciences. It is also a source of information for anyone interested in knowing more about earthworms.
Download or read book Biology of Earthworms written by C.A. Edwards and published by Springer. This book was released on 2013-12-01 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abiotic Stress in Plants written by Arun Shanker and published by BoD – Books on Demand. This book was released on 2011-09-22 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: World population is growing at an alarming rate and is anticipated to reach about six billion by the end of year 2050. On the other hand, agricultural productivity is not increasing at a required rate to keep up with the food demand. The reasons for this are water shortages, depleting soil fertility and mainly various abiotic stresses. The fast pace at which developments and novel findings that are recently taking place in the cutting edge areas of molecular biology and basic genetics, have reinforced and augmented the efficiency of science outputs in dealing with plant abiotic stresses. In depth understanding of the stresses and their effects on plants is of paramount importance to evolve effective strategies to counter them. This book is broadly dived into sections on the stresses, their mechanisms and tolerance, genetics and adaptation, and focuses on the mechanic aspects in addition to touching some adaptation features. The chief objective of the book hence is to deliver state of the art information for comprehending the nature of abiotic stress in plants. We attempted here to present a judicious mixture of outlooks in order to interest workers in all areas of plant sciences.
Download or read book Earthworms written by Clayton G. Horton and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthworms are often recognised as key organisms in soil ecosystems. In Chapter One, the authors propose endozoochory (seed dispersal through ingestion) as a missing mechanism of Oligochaeta dispersal and put forward the fusion-orthogonalisation model for the diversification and speciation of the Oligochaeta populations. Chapter Two discusses the biodiversity of earthworms in Madhya Pradesh, a central part of India. Earthworm diversity in some parts of India is still poorly explored, but findings suggest that the Madhya Pradesh region is rich in biodiversity of earthworms. In Chapter Three, a predation pressure is presented as an important variable which can be viewed as another type of pressure on the earthworm population, such as pollution, environmental stress or land management, causing additional or extrinsic mortality to earthworm population. Chapter Four covers the key role played by earthworms as ecosystem engineers through their bioturbation activities involving soil mixing, their influence on the decomposition and mineralisation of litter by breaking down organic matter, and their influence on the gas and water exchange or nutrient transfer in the soil. Chapter Five reviews recent research regarding the assessment of various pollutants on earthworms with emphasis on the possible improvement of the investigation in soil pollution monitoring using these organisms.
Download or read book Earthworms written by Clayton G. Horton and published by Nova Science Publishers. This book was released on 2017 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthworms are often recognized as key organisms in soil ecosystems. In Chapter One, the authors propose endozoochory (seed dispersal through ingestion) as a missing mechanism of Oligochaeta dispersal and put forward the fusion-orthogonalization model for the diversification and speciation of the Oligochaeta populations. Chapter Two discusses the biodiversity of earthworms in Madhya Pradesh, a central part of India. Earthworm diversity in some parts of India is still poorly explored, but findings suggest that the Madhya Pradesh region is rich in biodiversity of earthworms. In Chapter Three, a predation pressure is presented as an important variable which can be viewed as another type of pressure on the earthworm population, such as pollution, environmental stress or land management, causing additional or extrinsic mortality to earthworm population. Chapter Four covers the key role played by earthworms as ecosystem engineers through their bioturbation activities involving soil mixing, their influence on the decomposition and mineralization of litter by breaking down organic matter, and their influence on the gas and water exchange or nutrient transfer in the soil. Chapter Five reviews recent research regarding the assessment of various pollutants on earthworms with emphasis on the possible improvement of the investigation in soil pollution monitoring using these organisms.
