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Books > Earth & environment > The environment > Conservation of the environment > Conservation of wildlife & habitats > General
This book focuses on the use of microorganisms in relation to
agriculture, aquaculture and related fields, ranging from
biofertilizers to poultry production. The latest innovations are
also included to provide insights into the unlimited potentials of
microorganisms in these areas.Individual chapters explore topics
such as probiotics in poultry, biopurification of wastewater,
converting agrowastes into value-added applications and products,
rice cultivation, surfactants and bacteriocin as biopreservatives,
bioplastics, crop productivity, biofloc, and the production of
natural antibiotics. This volume will be of particular interest to
scientists, policymakers and industrial practitioners working in
the fields of agriculture, aquaculture and public health.
This book provides a snapshot of representative modeling analyses
of coastal hypoxia and its effects. Hypoxia refers to conditions in
the water column where dissolved oxygen falls below levels that can
support most metazoan marine life (i.e., 2 mg O2 l-1). The number
of hypoxic zones has been increasing at an exponential rate since
the 1960s; there are currently more than 600 documented hypoxic
zones in the estuarine and coastal waters worldwide. Hypoxia
develops as a synergistic product of many physical and biological
factors that affect the balance of dissolved oxygen in seawater,
including temperature, solar radiation, wind, freshwater discharge,
nutrient supply, and the production and decay of organic matter. A
number of modeling approaches have been increasingly used in
hypoxia research, along with the more traditional observational and
experimental studies. Modeling is necessary because of rapidly
changing coastal circulation and stratification patterns that
affect hypoxia, the large spatial extent over which hypoxia
develops, and limitations on our capabilities to directly measure
hypoxia over large spatial and temporal scales. This book consists
of 15 chapters that are broadly organized around three main topics:
(1) Modeling of the physical controls on hypoxia, (2) Modeling of
biogeochemical controls and feedbacks, and, (3) Modeling of the
ecological effects of hypoxia. The final chapter is a synthesis
chapter that draws generalities from the earlier chapters,
highlights strengths and weaknesses of the current state-of-the-art
modeling, and offers recommendations on future directions.
Fish are one of the most important global food sources, supplying a
significant share of the world's protein consumption. From stocks
of wild Alaskan salmon and North Sea cod to entire fish communities
with myriad species, fisheries require careful management to ensure
that stocks remain productive, and mathematical models are
essential tools for doing so. Fish Ecology, Evolution, and
Exploitation is an authoritative introduction to the modern size-
and trait-based approach to fish populations and communities. Ken
Andersen covers the theoretical foundations, mathematical
formulations, and real-world applications of this powerful new
modeling method, which is grounded in the latest ecological theory
and population biology. He begins with fundamental assumptions on
the level of individuals and goes on to cover population demography
and fisheries impact assessments. He shows how size- and
trait-based models shed new light on familiar fisheries concepts
such as maximum sustainable yield and fisheries
selectivity-insights that classic age-based theory can't
provide-and develops novel evolutionary impacts of fishing.
Andersen extends the theory to entire fish communities and uses it
to support the ecosystem approach to fisheries management, and
forges critical links between trait-based methods and evolutionary
ecology. Accessible to ecologists with a basic quantitative
background, this incisive book unifies the thinking in ecology and
fisheries science and is an indispensable reference for anyone
seeking to apply size- and trait-based models to fish demography,
fisheries impact assessments, and fish evolutionary ecology.
This book summarizes current advances in our understanding of how
infectious disease represents an ecological interaction between a
pathogenic microorganism and the host species in which that microbe
causes illness. The contributing authors explain that pathogenic
microorganisms often also have broader ecological connections,
which can include a natural environmental presence; possible
transmission by vehicles such as air, water, and food; and
interactions with other host species, including vectors for which
the microbe either may or may not be pathogenic. This field of
science has been dubbed disease ecology, and the chapters that
examine it have been grouped into three sections. The first section
introduces both the role of biological community interactions and
the impact of biodiversity on infectious disease. In turn, the
second section considers those diseases directly affecting humans,
with a focus on waterborne and foodborne illnesses, while also
examining the critical aspect of microbial biofilms. Lastly, the
third section presents the ecology of infectious diseases from the
perspective of their impact on mammalian livestock and wildlife as
well as on humans. Given its breadth of coverage, the volume offers
a valuable resource for microbial ecologists and biomedical
scientists alike.
Principles for Management of Fisheries and Wildlife: The Manager as
Decision-maker is a unique introductory text that explains critical
theories and principles of management and how to apply these
successfully to real-world fisheries and wildlife situations and
issues. Readers learn about management paradigms, decision-making
frameworks and skills, planning for success, and ethics - all
taught in the context of fisheries and wildlife issues such as
habitat management, human-wildlife conflict, managing over-abundant
and at-risk species, and harvest regulations. Each chapter includes
guiding outcomes, terms and definitions and critical thinking
questions. Opening problems and closing case studies provide
opportunities for application of both ecological and management
knowledge and skills. Readers also benefit from learning about
international models of wildlife management. Rooted in the belief
that biological and ecological knowledge can only be enhanced by
sound management, planning, and decision-making skills, the book
prepares biologists to be successful managers and leaders.
Principles for Management of Fisheries and Wildlife is an
outstanding textbook for introductory courses in the discipline.
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Walden
(Paperback)
Henry David Thoreau
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R431
Discovery Miles 4 310
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Ships in 10 - 15 working days
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Today, the East African state of Tanzania is renowned for wildlife
preserves such as the Serengeti National Park, the Ngorongoro
Conservation Area, and the Selous Game Reserve. Yet few know that
most of these initiatives emerged from decades of German colonial
rule. This book gives the first full account of Tanzanian wildlife
conservation up until World War I, focusing upon elephant hunting
and the ivory trade as vital factors in a shift from exploitation
to preservation that increasingly excluded indigenous Africans.
Analyzing the formative interactions between colonial governance
and the natural world, The Nature of German Imperialism situates
East African wildlife policies within the global emergence of
conservationist sensibilities around 1900.
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