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Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues > Ecological science, the Biosphere
This book focuses on the spatial distribution of landslide hazards
of the Darjeeling Himalayas. Knowledge driven methods and
statistical techniques such as frequency ratio model (FRM),
information value model (IVM), logistic regression model (LRM),
index overlay model (IOM), certainty factor model (CFM), analytical
hierarchy process (AHP), artificial neural network model (ANN), and
fuzzy logic have been adopted to identify landslide susceptibility.
In addition, a comparison between various statistical models were
made using success rate cure (SRC) and it was found that artificial
neural network model (ANN), certainty factor model (CFM) and
frequency ratio based fuzzy logic approach are the most reliable
statistical techniques in the assessment and prediction of
landslide susceptibility in the Darjeeling Himalayas. The study
identified very high, high, moderate, low and very low landslide
susceptibility locations to take site-specific management options
as well as to ensure developmental activities in theDarjeeling
Himalayas. Particular attention is given to the assessment of
various geomorphic, geotectonic and geohydrologic attributes that
help to understand the role of different factors and corresponding
classes in landslides, to apply different models, and to monitor
and predict landslides. The use of various statistical and physical
models to estimate landslide susceptibility is also discussed. The
causes, mechanisms and types of landslides and their destructive
character are elaborated in the book. Researchers interested in
applying statistical tools for hazard zonation purposes will find
the book appealing.
The purpose of this book is to present a range of cases and
comparison of the issues, insights and cases emerging from the
Sustainable Energy Mix Summit in the Galapagos that offer a better
understanding of energy mix in fragile environments from a variety
of International locations and contexts including the Galapagos.
Even before the myth of Prometheus, fire played a crucial
ecological role around the world. Numerous plant communities depend
on fire to generate species diversity in both time and space.
Without fire such ecosystems would become sterile monocultures.
Recent efforts to prohibit fire in fire dependent communities have
contributed to more intense and more damaging fires. For these
reasons, foresters, ecologists, land managers, geographers, and
environmental scientists are interested in the behavior and
ecological effects of fires. This book will be the first to focus
on the chemistry and physics of fire as it relates to the ways in
which fire behaves and the impacts it has on ecosystem function.
Leading international contributors have been recruited by the
editors to prepare a didactic text/reference that will appeal to
both advanced students and practicing professionals.
This book gives a comprehensive overview on the various aspects of
Trichoderma, a filamentous fungus ubiquitously present in soil.
Topics addressed are the biology, diversity, taxonomy, ecology,
biotechnology and cultivation of Trichoderma, to just name a few.
Basic as well as applied aspects are covered and a special focus is
given on use of Trichoderma in agriculture and beyond. Trichoderma
species are widely distributed throughout the world in soil,
rotting plant material, and wood. Although they are often
considered as a contaminants, Trichoderma species are also known
for their ability to act as biocontrol agents against various plant
pathogens and plant diseases, and also as biostimulants promoting
plant growth. The contents of this book will be of particular
interest to, agricultural scientists, biotechnologists, plant
pathologists, mycologists, and microbiologists, students, extension
workers, policy makers and other stakeholders.
The lake charr Salvelinus namaycush is a ubiquitous member of
cold-water lake ecosystems in previously glaciated regions of
northern continental U.S., Alaska, and Canada that often support
important commercial, recreational, and subsistence fisheries. The
lake charr differs from other charrs by its large size, longevity,
iteroparity, top-predator specialization, reduced sexual
dimorphism, prevalence of lacustrine spawning, and use of deepwater
habitat. The species is remarkably variable in phenotype,
physiology, and life history, some of which is reflected in its
ecology and genetics, with as many as four morphs or ecotypes
co-occurring in a single lake. The lake charr is often the top
predator in these systems, but is highly adaptable trophically, and
is frequently planktivorous in small lakes. The lake charr by their
name highlights their common habitat, lakes both large and small,
but often frequents rivers and occasionally moves into the Arctic
Ocean. Movement and behaviour of lake charr are motivated by access
to cool, well-oxygenated water, foraging opportunities, predator
avoidance, and reproduction. Owing to their broad distribution and
trophic level, the lake charr serves as a sentinel of anthropogenic
change. This volume will provide an up-to-date summary of what is
currently known about lake charr from distribution to genetics to
physiology to ecology. The book provides a compilation and
synthesis of available information on the lake charr, beginning
with an updated distribution and a revised treatment of the
paleoecology of the species. Understanding of ecological and
genetic diversity and movement and behaviour of the species has
advanced remarkably since the last major synthesis on the species
over 40 years ago. Mid-sections of the book provide detailed
accounts of the biology and life history of the species, and later
sections are devoted to threats to conservation and fishery
management practices used to ensure sustainability. A new standard
lake charr-specific terminology is also presented. The book will be
a valuable reference text for biologists around the world,
ecologists, and fishery managers, and of interest to the angling
public.
This book highlights various designs for urban green spaces and
their functions. It provides an interesting meeting point between
Asian, European and North America specialists (researchers,
planners, landscape architects) studying urban biodiversity; urban
biodiversity and green space; relations between people and
biodiversity. The most important feature of this book is the unique
point of view from each contributor towards "the relationship
between nature and people in urban areas", in the context of the
ecosystem and biodiversity in urban areas and how to manage them.
All chapters explore and consider the relationship between humans
and nature in cities, a subject which is taking on increasing
importance as new cities are conceptualized and planned. These
discussion and examples would be useful for urban ecology
researchers, biologists, city planners, government staff working in
city planning, architects, landscape architects, and university
instructors. This book can also be used as a textbook for
undergraduate and postgraduate city planning, architecture or
landscape architecture courses.
This book gathers the latest findings on the microbial ecology of
saline habitats, plant-microbe interactions under saline
conditions, and saline soil reclamation for agricultural use. The
content is divided into four main parts: Part I outlines the
definition of salinity, its genesis and impacts, and microbial
diversity in saline habitats. Part II deals with impact of salinity
on microbial and plant life/health. Part III highlights plant -
microbe interactions in saline environments, and Part IV describes
strategies for mitigation and reclamation of saline soils. The
salinization of arable land is steadily increasing in many parts of
the world. An excessive concentration of soluble salts (salinity)
in soils or irrigation water adversely affects plant growth and
survival. This problem is exacerbated in arid and semiarid areas
due to their low precipitation and high evaporation rates. In turn,
poor management practices and policies for using river water for
the irrigation of agriculture crops often lead to the secondary
salinization of soils. Considering the growing demands of a
constantly expanding population, understanding the microbial
ecology and interactions under saline conditions and their
implications for sustainable agriculture is of utmost importance.
Providing both an essential review of the status quo and a future
outlook, this book represents a valuable asset for researchers,
environmentalists and students working in microbiology and
agriculture. .
As part of its efforts to improve fertilizer use and efficiency in
West Africa, and following the recent adoption of the West African
fertilizer recommendation action plan (RAP) by ECOWAS, this volume
focuses on IFDC's technical lead with key partner institutions and
experts to build on previous and current fertilizer recommendations
for various crops and countries in West Africa for wider uptake by
public policy makers and fertilizer industry actors.
As part of its efforts to improve fertilizer use and efficiency in
West Africa, and following the recent adoption of the West African
fertilizer recommendation action plan (RAP) by ECOWAS, this volume
focuses on IFDC's technical lead with key partner institutions and
experts to build on previous and current fertilizer recommendations
for various crops and countries in West Africa for wider uptake by
public policy makers and fertilizer industry actors.
By combining the analysis of biotic and abiotic components of
terrestrial ecosystems, this book synthesizes material on arid and
semiarid landscapes, which was previously scattered among various
books and journal articles. It focuses on water-limited ecosystems,
which are highly sensitive to fluctuations in hydrologic conditions
and, in turn, play an important role in affecting the regional
water cycle. Intended as a tool for scientists working in the area
of the earth and environmental sciences, this book presents the
basic principles of eco-hydrology as well as a broad spectrum of
topics and advances in this research field. Written by authors with
diverse areas of expertise who work in arid areas around the world,
the contributions describe the various interactions between the
biological and physical dynamics in dryland ecosystems, ranging
from basic processes in the soil-vegetation-climate system, to
landscape-scale hydrologic and geomorphic processes, ecohydrologic
controls on soil nutrient dynamics, and multiscale analyses of
disturbances and patterns
This book describes the latest advances in systems biology in four
plant-based marine ecosystems: seaweeds, seagrasses, microalgae,
and corals. Marine organisms that inhabit the oceanic environment
experience a diverse range of environmental fluctuations,
anthropogenic stress, and threats from invasive species and
pathogens. System biology integrates physiology, genomics,
transcriptomics, proteomics, and metabolomics into numerical models
and is emerging as an important approach to elucidate the
functional adaptations of marine organisms to adverse environmental
conditions. This book focuses on how ecophysiology, omics
platforms, their integration (a systems biology perspective), and
next generation sequencing tools are being used to address the
stress response of marine seaweeds, seagrasses, corals, marine
microbe diversity, and micro-and macroalgae/corals-bacterial
interactions to global climate change and anthropogenic activities.
The contents of the book are of special interest to graduate and
postgraduate marine biology students and marine biology
researchers, particularly those interested in marine ecology,
stress physiology of marine macrophytes/corals/phytoplankton, and
environmental microbiology. This book would also be of interest to
marine engineers engaged in the management and conservation of our
valuable marine resources.
This book discusses how aquatic microbial communities develop
interactive metabolic coordination both within and between species
to optimize their energetics. It explains that microbial community
structuration often includes functional stratification among a
multitude of organisms that variously exist either suspended in the
water, lodged in sediments, or bound to one another as biofilms on
solid surfaces. The authors describe techniques that can be used
for preparing and distributing microbiologically safe drinking
water, which presents the challenge of successfully removing the
pathogenic members of the aquatic microbial community and then
safely delivering that water to consumers. Drinking water
distribution systems have their own microbial ecology, which we
must both understand and control in order to maintain the safety of
the water supply. Since studying aquatic microorganisms often
entails identifying them, the book also discusses techniques for
successfully isolating and cultivating bacteria. As such, it
appeals to microbiologists, microbial ecologists and water quality
scientists.
This second edition textbook offers an expanded conceptual
synthesis of microbial ecology with plant and animal ecology.
Drawing on examples from the biology of microorganisms and
macroorganisms, this textbook provides a much-needed
interdisciplinary approach to ecology. The focus is the individual
organism and comparisons are made along six axes: genetic
variation, nutritional mode, size, growth, life cycle, and
influence of the environment. When it was published in 1991, the
first edition of Comparative Ecology of Microorganisms and
Macroorganisms was unique in its attempt to clearly compare
fundamental ecology across the gamut of size. The explosion of
molecular biology and the application of its techniques to
microbiology and organismal biology have particularly demonstrated
the need for interdisciplinary understanding. This updated and
expanded edition remains unique. It treats the same topics at
greater depth and includes an exhaustive compilation of both the
most recent relevant literature in microbial ecology and
plant/animal ecology, as well as the early research papers that
shaped the concepts and theories discussed. Among the completely
updated topics in the book are phylogenetic systematics, search
algorithms and optimal foraging theory, comparative metabolism, the
origins of life and evolution of multicellularity, and the
evolution of life cycles. From Reviews of the First Edition: "John
Andrews has succeeded admirably in building a bridge that is
accessible to all ecologists." -Ecology "I recommend this book to
all ecologists. It is a thoughtful attempt to integrate ideas from,
and develop common themes for, two fields of ecology that should
not have become fragmented." -American Scientist "Such a synthesis
is long past due, and it is shameful that ecologists (both big and
little) have been so parochial." -The Quarterly Review of Biology
Bioassays: Advanced Methods and Applications provides a thorough
understanding of the applications of bioassays in monitoring
toxicity in aquatic ecosystems. It reviews the newest tests and
applications in discovering compounds and toxins in the
environment, covering all suitable organisms, from bacteria, to
microorganisms, to higher plants, including invertebrates and
vertebrates. By learning about newer tests, water pollution control
testing can be less time and labor consuming, and less expensive.
This book will be helpful for anyone working in aquatic
environments or those who need an introduction to ecotoxicology or
bioassays, from investigators, to technicians and students.
Birds catch the public imagination like no other group of animals;
in addition, birders are perhaps the largest non-professional
naturalist community. Genomics and associated bioinformatics have
revolutionised daily life in just a few decades. At the same time,
this development has facilitated the application of genomics
technology to ecological and evolutionary studies, including
biodiversity and conservation at all levels. This book reveals how
the exciting toolbox of genomics offers new opportunities in all
areas of avian biology. It presents contributions from prominent
experts at the intersection of avian biology and genomics, and
offers an ideal introduction to the world of genomics for students,
biologists and bird enthusiasts alike. The book begins with a
historical perspective on how genomic technology was adopted by
bird ecology and evolution research groups. This led, as the book
explains, to a revised understanding of avian evolution, with
exciting consequences for biodiversity research as a whole. Lastly,
these impacts are illustrated using seminal examples and the latest
discoveries from avian biology laboratories around the world.
This book is a treatise on microbial ecotoxicology, discussing the
effect of pollutants on microbial ecosystems and the role of
microorganisms in ecosystems services. Emphasizing the microbial
responses to pollution at different biological levels, it focuses
on metabolic pathways, genetic adaptation and response at the
whole-microbial community level. It also addresses the ecological
indicators of ecosystem recovery, as well as microbial biomarkers
and biosensors as tools for microbial ecotoxicology.
This volume addresses major evolutionary changes that took place
during the Ediacaran and the Paleozoic. These include discussions
on the nature of Ediacaran ecosystems, as well as the ichnologic
signature of evolutionary radiations, such as the Cambrian
explosion and the Great Ordovician biodiversification event, the
invasion of the land, and the end-Permian mass extinction. This
volume set provides innovative reviews of the major evolutionary
events in the history of life from an ichnologic perspective.
Because the long temporal range of trace fossils has been commonly
emphasized, biogenic structures have been traditionally overlooked
in macroevolution. However, comparisons of ichnofaunas through
geologic time do reveal the changing ecology of organism-substrate
interactions. The use of trace fossils in evolutionary paleoecology
represents a new trend that is opening a window for our
understanding of major evolutionary radiations and mass
extinctions. Trace fossils provide crucial evidence for the
recognition of spatial and temporal patterns and processes
associated with paleoecologic breakthroughs.
Myxomycetes: Biology, Systematics, Biogeography, and Ecology is a
comprehensive overview of the body of accumulated knowledge that
now exists on myxomycetes. Its broad scope takes an integrated
approach to the knowledge of this organismal group, considering a
number of important aspects of their genetics and molecular
phylogeny. It also treats myxomycetes as a distinct group from
fungi, and includes molecular information that discusses the
systematics and evolutionary pathways of the group. Additionally,
biomedical and engineering applicability is discussed, thus
expanding the audience and use of the book in a multidisciplinary
context. The book provides an authoritative resource for students,
researchers and educators interested in the fields of protistology,
microbial ecology, molecular microbiology, biogeography, mycology,
biodiversity, and evolutionary biology, and will also interest the
amateur naturalist and biologist.
This book examines comprehensively for the first time, the scope
and accuracy of indigenous environmental knowledge. It shows that
in some spheres, including agriculture, house design, fuel and
water manipulation, the high reputation of local observers is well
deserved and often sufficiently insightful to warrant wider
imitation. However it also reveals that in certain matters, notably
some aspects of health care and wild-species population management,
local knowledge systems are conspicuously unsound. Not all the
difficulties are of the communities own making, some stem from
external factors outside their control. However in either case,
remedial measures can be suggested and this book describes,
especially for the benefit of practitioners, what steps might be
taken in rural communities to improve the quality of life. The
possibility of useful transfers of information from local settings
to Western ones is not ignored and forms the subject of the book's
final chapter.
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