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Books > Earth & environment > The environment > Conservation of the environment > Conservation of wildlife & habitats > General

Old-Growth Forests - Function, Fate and Value (Hardcover, 2009 ed.): Christian Wirth, Gerd Gleixner, Martin Heimann Old-Growth Forests - Function, Fate and Value (Hardcover, 2009 ed.)
Christian Wirth, Gerd Gleixner, Martin Heimann
R8,897 Discovery Miles 88 970 Ships in 10 - 15 working days

Many terms often used to describe old-growth forests imply that these forests are less vigorous, less productive and less stable than younger forests. But research in the last two decades has yielded results that challenge the view of old-growth forests being in decline. Given the importance of forests in battling climate change and the fact that old-growth forests are shrinking at a rate of 0.5% per year, these new results have come not a moment too soon.

This book is the first ever to focus on the ecosystem functioning of old-growth forests. It is an exhaustive compendium of information that contains original work conducted by the authors. In addition, it is truly global in scope as it studies boreal forests in Canada, temperate old-growth forests in Europe and the Americas, and global tropical forests. Written in part to affect future policy, this eminently readable book is as useful for the scientist and student as it is for the politician and politically-interested layman.

State of the Wild 2010-2011 - A Global Portrait (Paperback, 2nd Ed.): Eva Fearn State of the Wild 2010-2011 - A Global Portrait (Paperback, 2nd Ed.)
Eva Fearn; Foreword by Ward Woods
R1,245 Discovery Miles 12 450 Ships in 12 - 17 working days

This title come with a special section on 'Wildlife Conservation in a Time of War'. "State of the Wild" is a biennial series that brings together international conservation experts and writers to discuss emerging issues in the conservation of wildlife and wild places. Each volume in the series combines evocative writings with a fascinating tour of conservation news highlights and vital statistics from around the world. One-third of each volume focuses on a topic of particular concern to conservationists. This 2010-2011 edition considers how destabilization and war affect wildlife and wild places. Only recently has the international community begun to appreciate the cost of conflict - simmering tension, war, and reconstruction - on the natural world. This special section examines the role that conservation plays in the context of human conflict considering issues such as, Can the work of saving wildlife and wild places help ameliorate tensions? Can conservation deepen political understanding? Can conservation help in post-conflict situations? The book's twenty essays are intermixed with poetry and beautiful photos that capture our connection to the wild. "State of the Wild's" accessible approach educates a wide range of audiences while at the same time presenting leading-edge scientific overviews of hot topics in conservation. Uniquely structured with magazine like features up front, conservation news in the middle, and essays from eminent authors and experienced scientists throughout, this landmark series is an essential addition to any environmental bookshelf.

America's Natural Places: The Midwest (Hardcover): Jason Ney, Terri Nichols America's Natural Places: The Midwest (Hardcover)
Jason Ney, Terri Nichols; Edited by Stacy S Kowtko
R2,896 Discovery Miles 28 960 Ships in 10 - 15 working days

From Iowa's Decorah Ice Cave to the Kitty Todd Nature Preserve in Ohio, this volume provides a snapshot of the most spectacular and important natural places in the Midwestern United States. America's Natural Places: The Midwest examines over 50 of the most spectacular and important areas of this region, with each entry describing the importance of the area, the flora and fauna that it supports, threats to the survival of the region, and what is being done to protect it. Organized by state within the volume, this work informs readers about the wide variety of natural areas across the Midwest and identifies places near them that demonstrate the importance of preserving such regions.

America's Natural Places - [5 volumes] (Hardcover): Stacy S Kowtko America's Natural Places - [5 volumes] (Hardcover)
Stacy S Kowtko
R11,211 Discovery Miles 112 110 Ships in 12 - 17 working days

This timely set invites readers to celebrate the most beautiful and environmentally important places in the United States. Each of the United States boasts numerous special places that are significant for their biodiversity, ecology, habitats for rare and endangered species, or other qualities that make them unique and worthy of preservation. These sites range from nature preserves to state and national parks, wildlife areas, ecosystems that provide a home to diverse flora and fauna, and even scenic vistas. The five volumes of America's Natural Places examine over 200 of the most spectacular and important of these places, with each entry describing the importance of the area, the flora and fauna that it supports, threats to the survival of the region, and what is being done to protect it. Organized by state within regional volumes, this encyclopedia both informs the reader about the wide variety of natural areas across the country and identifies places nearby that demonstrate that preserving such treasurers is of immediate importance to every U.S. citizen.

America's Natural Places: South and Southeast (Hardcover): Stacy S Kowtko America's Natural Places: South and Southeast (Hardcover)
Stacy S Kowtko; Edited by Stacy S Kowtko
R3,094 Discovery Miles 30 940 Ships in 10 - 15 working days

From the Texas Blackland Prairies to the Middle Atlantic Coastal Plain of the Carolinas, this volume provides a snapshot of the most spectacular and important natural places in the southern United States. America's Natural Places: South and Southeast examines over 50 of the most spectacular and important areas of this region, with each entry describing the importance of the area, the flora and fauna that it supports, threats to the survival of the region, and what is being done to protect it. Organized by state within the volume, this book informs readers about the wide variety of natural areas across the south and southeast and identifies places near them that demonstrate the importance of preserving such regions.

America's Natural Places: East and Northeast (Hardcover): Donelle Nicole Dreese America's Natural Places: East and Northeast (Hardcover)
Donelle Nicole Dreese; Edited by Stacy S Kowtko
R3,094 Discovery Miles 30 940 Ships in 10 - 15 working days

From Maine's Acadia National Park to Kentucky's Natural Bridge State Park Nature Preserve, this volume provides a snapshot of the most spectacular and important natural places in the East and Northeast. America's Natural Places: East and Northeast examines over 50 of the most spectacular and important areas of this region, with each entry describing the importance of the area, the flora and fauna that it supports, threats to the survival of the region, and what is being done to protect it. Organized by state within the volume, this work informs readers about the wide variety of natural areas across the east and northeast and identifies places that may be near them that demonstrate the importance of preserving such regions.

America's Natural Places: Rocky Mountains and Great Plains (Hardcover): Kelly Enright America's Natural Places: Rocky Mountains and Great Plains (Hardcover)
Kelly Enright; Edited by Stacy S Kowtko
R2,896 Discovery Miles 28 960 Ships in 10 - 15 working days

From Rocky Mountain National Park in Colorado to the Tallgrass Prairie National Preserve in Kansas, this volume provides a snapshot of the most spectacular and important natural places in the Great Plains and Rocky Mountains. America's Natural Places: Rocky Mountains and Great Plains examines over 50 of the most spectacular and important areas of this region, with each entry describing the importance of the area, the flora and fauna that it supports, threats to the survival of the region, and what is being done to protect it. Organized by state within the volume, this work informs readers about the wide variety of natural areas across the Rocky Mountains and Great Plains and identifies places that may be near them that demonstrate the importance of preserving such regions.

America's Natural Places: Pacific and West (Hardcover): Methea K Sapp America's Natural Places: Pacific and West (Hardcover)
Methea K Sapp
R3,094 Discovery Miles 30 940 Ships in 10 - 15 working days

From Alaska's Arctic National Wildlife Refuge to the Milnesand Prairie Preserve of New Mexico, this volume provides a snapshot of the most spectacular and important natural places in the western United States. America's Natural Places: Pacific and West examines over 50 of the most spectacular and important areas of this region, with each entry describing the importance of the area, the flora and fauna that it supports, threats to the survival of the region, and what is being done to protect it. Organized by state within the volume, this work informs readers about the wide variety of natural areas across the western part of the United States and identifies places that may be near them that demonstrate the importance of preserving such regions.

Recovery of Gray Wolves in the Great Lakes Region of the United States - An Endangered Species Success Story (Hardcover, 2009... Recovery of Gray Wolves in the Great Lakes Region of the United States - An Endangered Species Success Story (Hardcover, 2009 ed.)
Adrian P. Wydeven, Timothy R. van Deelen, Edward Heske
R3,031 Discovery Miles 30 310 Ships in 10 - 15 working days

In this book, we document and evaluate the recovery of gray wolves (Canis lupus) in the Great Lakes region of the United States. The Great Lakes region is unique in that it was the only portion of the lower 48 states where wolves were never c- pletely extirpated. This region also contains the area where many of the first m- ern concepts of wolf conservation and research where developed. Early proponents of wolf conservation such as Aldo Leopold, Sigurd Olson, and Durward Allen lived and worked in the region. The longest ongoing research on wolf-prey relations (see Vucetich and Peterson, Chap. 3) and the first use of radio telemetry for studying wolves (see Mech, Chap. 2) occurred in the Great Lakes region. The Great Lakes region is the first place in the United States where "Endangered" wolf populations recovered. All three states (Minnesota, Wisconsin, and Michigan) developed ecologically and socially sound wolf conservation plans, and the federal government delisted the population of wolves in these states from the United States list of endangered and threatened species on March 12, 2007 (see Refsnider, Chap. 21). Wolf management reverted to the individual states at that time. Although this delisting has since been challenged, we believe that biological recovery of wolves has occurred and anticipate the delisting will be restored. This will be the first case of wolf conservation reverting from the federal government to the state conser- tion agencies in the United States.

Spawning Migration of the European Eel - Reproduction index, a useful tool for conservation management (Hardcover, 2009 ed.):... Spawning Migration of the European Eel - Reproduction index, a useful tool for conservation management (Hardcover, 2009 ed.)
Guido Van Den Thillart, Sylvie Dufour, J. Cliff Rankin
R5,871 Discovery Miles 58 710 Ships in 10 - 15 working days

Freshwater eels are almost infinitely improbable creatures. They spawn and die in the middle of the ocean, often associated with undersea mountains. Their tra- parent, leaf-like larvae move with ocean currents for months or years until they approach the mouths of freshwater rivers. Then they undergo a dramatic transf- mation in morphology, physiology and behavior. They move from their planktonic oceanic environment, migrate upstream and live for several years as apex fre- water predators. Then, almost impossibly, as they become sexually mature, they reverse their migration downstream to the ocean and back to spawning grounds to complete their life cycle. The dramatic changes in their life cycles are incredible. The efforts to unravel the details of their life history have been truly daunting. Much of the past research was the work of dedicated individuals who devoted their lifetime research to these fishes. Freshwater eels merit a separate chapter in almost any textbook dealing with ichthyology, marine biology or animal migration. We know a great deal about some aspects of the biology of freshwater eels. However, our understanding of their bi- ogy still resembles a work of art as much as a work of science. To some it appears like the sweeping brush strokes of a Japanese Zen landscape, to others it resembles the work of a French impressionist, and to still others it appears as magic realism.

Alien Reptiles and Amphibians - a Scientific Compendium and Analysis (Hardcover, 2009 ed.): Fred Kraus Alien Reptiles and Amphibians - a Scientific Compendium and Analysis (Hardcover, 2009 ed.)
Fred Kraus
R6,665 Discovery Miles 66 650 Ships in 10 - 15 working days

Transportation of species to areas outside their native ranges has been a feature of human culture for millennia. During this time such activities have largely been viewed as beneficial or inconsequential. However, it has become increasingly clear that human-caused introductions of alien biota are an ecological disruption whose consequences rival those of better-known insults like chemical pollution, habitat loss, and climate change. Indeed, the irreversible nature of most alien-species int- ductions makes them less prone to correction than many other ecological problems. Current reshuffling of species ranges is so great that the present era has been referred to by some as the "Homogocene" in an effort to reflect the unique mag- tude of the changes being made. These alien interlopers often cause considerable ecological and economic d- age where introduced. Species extinctions, food-web disruptions, community alte- tions, ecosystem conversion, changes in nutrient cycling, fisheries collapse, watershed degradation, agricultural loss, building damage, and disease epidemics are among the destructive - and frequently unpredictable - ecological and economic effects that invasive alien species can inflict. The magnitude of these damages c- tinues to grow, with virtually all environments heavily used by humans now do- nated by alien species and many "natural" areas becoming increasingly prone to alien invasion as well. Attention to this problem has increased in the past decade or so, and efforts to prevent or limit further harm are gaining wider scientific and political acceptance.

State of the World's Oceans (Hardcover, 2009 ed.): Michelle Allsopp, Stefan E. Pambuccian, Paul Johnston, David Santillo State of the World's Oceans (Hardcover, 2009 ed.)
Michelle Allsopp, Stefan E. Pambuccian, Paul Johnston, David Santillo
R2,994 Discovery Miles 29 940 Ships in 10 - 15 working days

The world's oceans cover 70% of the earth's surface and are home to a myriad of amazing and beautiful creatures. However, the biodiversity of the oceans is incre- ingly coming under serious threat from many human activities including overfi- ing, use of destructive fishing methods, pollution and commercial aquaculture. In addition, climate change is already having an impact on some marine ecosystems. This book discusses some of the major threats facing marine ecosystems by cons- ering a range of topics, under chapters discussing biodiversity (Chapter 1), fisheries (Chapter 2), aquaculture (Chapter 3), pollution (Chapter 4) and the impacts of increasing greenhouse gas emissions (Chapter 5). It goes on to explore solutions to the problems by discussing equitable and sustainable management of the oceans (Chapter 6) and protecting marine ecosystems using marine reserves (Chapter 7). Presently, 76% of the oceans are fully or over-exploited with respect to fishing, and many species have been severely depleted. It is abundantly clear that, in general, current fisheries management regimes are to blame for much of the widespread degradation of the oceans. Many policy-makers and scientists now agree that we must adopt a radical new approach to managing the seas - one that is precautionary in nature and has protection of the whole marine ecosystem as its primary objective. This 'ecosystem-based approach' is vital if we are to ensure the health of our oceans for future generations.

Faunal Ecology and Conservation of the Great Indian Desert (Hardcover, 2009 ed.): C. Sivaperuman, Qaiser H Baqri, G. Ramaswamy,... Faunal Ecology and Conservation of the Great Indian Desert (Hardcover, 2009 ed.)
C. Sivaperuman, Qaiser H Baqri, G. Ramaswamy, M. Naseema
R5,266 Discovery Miles 52 660 Ships in 10 - 15 working days

The Thar Desert, also known as the Great Indian Desert, is a large, arid region in the 2 northwesternpartoftheIndiansubcontinent.Withanextentof280,000km ,itisthe 17th largest desert in the world. It lies mostly in the Indian state of Rajasthan, and extends into the southern portion of Haryana and Punjab and into northern Gujarat. The Thar Desert is bounded in the northwest by the Sutlej River, in the east by the Aravalli Range, in the south by a salt marsh known as the Rann of Kutch, and in the west by the Indus River. In spite of the fact that climatic conditions are very harsh, this extremely hot region of the country exhibits a vivid and spectacular biodiversity. It is an important area biologically, at the con?uence of very different habitats, namely grassland, sand dunes and rocky expanses as well as forested domains. Due to the diversi?ed ha- tats, the vegetation and animal life in this arid region are very rich. Some wildlife species, fast disappearing from other parts of India, are found in large numbers in this desert, such as the Great Indian Bustard, Blackbuck, Indian Gazelle and Indian Wild Ass in the Rann of Kutch. The Desert National Park is an excellent example of theThar Desertecosystem, anditsdiverse fauna.The region isahaven formigratory and resident desert birds.

Biology, Conservation and Sustainable Development of Sturgeons (Hardcover, 2009 ed.): Ramon Carmona, Alberto Domezain, Manuel... Biology, Conservation and Sustainable Development of Sturgeons (Hardcover, 2009 ed.)
Ramon Carmona, Alberto Domezain, Manuel Garcia-Gallego, Jose Antonio Hernando, Fernando Rodriguez, …
R5,870 Discovery Miles 58 700 Ships in 10 - 15 working days

Sturgeons are considered living fossils, sharing many morphological and biological features with ancestral fish. Furthermore, sturgeons are of the utmost interest from an economic perspective, not only for the caviar but for the flesh. However, the wild populations of the majority of the species are at serious risk of extinction all over the world. So, it is urgent to develop strategies for both farming culture and conservation and recovery in natural habitats.

This book provides a comprehensive view of the biology and sustainable development of sturgeons putting emphasis on the Southern Europe autochthonous species such as Acipenser nacarii and Acipenser sturio that share geographical distribution. Other relevant species (such as Huso huso, A. oxyrhinchus, A. ruthenus, A. stellatus) and areas (Germany, Russia, North America) are also considered. The contents are organised in three sections: Taxonomy and Biogeography (including the morphological and genetic analyses that clarify the taxonomy and phylogeny of sturgeons, focused on those from Southern Europe), Biology and Aquaculture (where several aspects of the developmental biology, feeding, and reproduction are considered in relation to the improvement of sturgeon farming), and Recovery and Conservation (that collates and analyses different recovery research actions, the ecology of the rivers for restoration as well as the problems related to the trade of caviar)."

Aquaculture, Innovation and Social Transformation (Hardcover, 2008 ed.): Keith Culver, David Castle Aquaculture, Innovation and Social Transformation (Hardcover, 2008 ed.)
Keith Culver, David Castle
R4,707 Discovery Miles 47 070 Ships in 10 - 15 working days

Keith Culver and David Castle Introduction Aquaculture is at the leading edge of a surprisingly polarized debate about the way we produce our food. According to the United Nations Food and Agriculture Organization, aquaculture production has increased 8. 8% per year since 1970, far surpassing productivity gains in terrestrial meat production at 2. 8% in the same period (FAO 2007). Like the 'green revolution' before it, the 'blue revolution' in aquaculture promises rapidly increased productivity through technology-driven - tensi?cation of aquaculture animal and plant production (Costa-Pierce 2002; The Economist 2003). Proponents of further aquaculture development emphasize aq- culture's ancient origins and potential to contribute to global food security d- ing an unprecedented collapse in global ?sheries (World Fish Center; Meyers and Worm 2003; Worm et al. 2006). For them, technology-driven intensi?cation is an - dinary and unremarkable extension of past practice. Opponents counter with images of marine and freshwater environments devastated by intensive aquaculture pr- tices producing unsustainable and unhealthy food products. They view the promised revolutionasascam, nothingmorethanclever marketingbypro?t-hungry ?shfa- ers looking for ways to distract the public from the real harms done by aquaculture. The stark contrast between proponents and opponents of modern aquaculture recalls decades of disputes about intensive terrestrial plant and animal agriculture, disputes whose vigor shows that the debate is about much more than food production (Ruse and Castle 2002).

Ecological Effects of Water-level Fluctuations in Lakes (Hardcover, 2008 ed.): Karl M. Wantzen, Karl-Otto Rothhaupt, Martin... Ecological Effects of Water-level Fluctuations in Lakes (Hardcover, 2008 ed.)
Karl M. Wantzen, Karl-Otto Rothhaupt, Martin Moertl, Marco Cantonati, Laszlo G.-Toth, …
R5,935 Discovery Miles 59 350 Ships in 10 - 15 working days

Most aquatic ecosystems have variable water levels. These water-level fluctuations (WLF) have multiple effects on the organisms above and below the waterline. Natural WLF patterns in lakes guarantee both productivity and biodiversity, while untimely floods and droughts may have negative effects. Human impacts on WLF have led to a stabilization of the water levels of many lakes by hydraulic regulation, untimely drawdown due to water use, or floods due to water release from hydropower plants in the catchments.

This book provides a first review in this field. It presents selected papers on the ecological effects of WLF in lakes, resulting from a workshop at the University of Konstanz in winter 2005. Issues addressed here include the extent of WLF, and analyses of their effects on different groups of biota from microorganisms to vertebrates. Applied issues include recommendations for the hydrological management of regulated lakes to reduce negative impacts, and a conceptual framework is delivered by an extension of the floodpulse concept for lakes. Current impacts on water use, including increasing demands on drinking and irrigation water, hydropower etc., and climate change effects on WLF make this book an essential resource for aquatic ecologists, engineers, and decision-makers dealing with the management of lake ecosystems and their catchments.

Ski Trails and Wildlife - Toward Snow Country Restoration (Paperback): Eric Burr Ski Trails and Wildlife - Toward Snow Country Restoration (Paperback)
Eric Burr
R518 R456 Discovery Miles 4 560 Save R62 (12%) Ships in 10 - 15 working days

Skiing and wildlife are both victims of misinformation, which produces needless adversity. Ski trails can restore wildlife habitat by facilitating thinning, prescribed fire, and diverting recreation away from wilderness.

Handbook of Alien Species in Europe (Hardcover, 2009 ed.): Delivering Alien Invasive Species Handbook of Alien Species in Europe (Hardcover, 2009 ed.)
Delivering Alien Invasive Species
R5,832 Discovery Miles 58 320 Ships in 10 - 15 working days

Biological invasions by alien (non-native) species are widely recognized as a significant component of human-caused global environmental change and the second most important cause of biodiversity decline. Alien species threaten many European ecosystems and have serious environmental, economic and health impacts. The DAISIE (Delivering Alien Invasive Species Inventories for Europe) project has now brought together all available information on alien species in Europe (terrestrial, aquatic and marine) and from all taxa (fungi, plants, animals). Thus for the first time, an overview and assessment of biological invasions in the Pan-European region is finally possible. The Handbook of Alien Species in Europe summarises the major findings of this groundbreaking research and addresses the invasion trends, pathways, and both economic as well as ecological impact for eight major taxonomic groups. Approximately 11.000 alien species recorded in Europe are listed, and fact sheets for 100 of the most invasive alien species are included, each with a distribution map and colour illustration. The book is complemented by a regularly updated internet database providing free additional information. With its highly interdisciplinary approach, DAISIE and its Handbook will be the basis for future scientific investigations as well as management and control of alien invasive species in Europe.

Heatstroke - Nature in an Age of Global Warming (Hardcover, 3rd Ed.): Anthony D. Barnosky Heatstroke - Nature in an Age of Global Warming (Hardcover, 3rd Ed.)
Anthony D. Barnosky
R950 Discovery Miles 9 500 Ships in 12 - 17 working days

How is wildlife adapting to climate change? In 2006, one of the hottest years on record, a 'pizzly' was discovered near the top of the world. Half polar bear, half grizzly, this never-before-seen animal might be dismissed as a fluke of nature. Anthony Barnosky instead sees it as a harbinger of things to come. In "Heatstroke", the renowned paleoecologist shows how global warming is fundamentally changing the natural world and its creatures. While melting ice may have helped produce the pizzly, climate change is more likely to wipe out species than to create them. Plants and animals that have followed the same rhythms for millennia are suddenly being confronted with a world they're unprepared for - and adaptation usually isn't an option. This is not the first time climate change has dramatically transformed Earth. Barnosky draws connections between the coming centuries and the end of the last ice age, when mass extinctions swept the planet. The differences now are that climate change is faster and hotter than past changes, and for the first time humanity is driving it. Which means this time we can work to stop it. No one knows exactly what nature will come to look like in this new age of global warming. But "Heatstroke" gives us a haunting portrait of what we stand to lose and the vitality of what can be saved.

The Future of Fisheries Science in North America (Hardcover, 2009 ed.): Richard J. Beamish, Brian J. Rothschild The Future of Fisheries Science in North America (Hardcover, 2009 ed.)
Richard J. Beamish, Brian J. Rothschild
R4,663 Discovery Miles 46 630 Ships in 10 - 15 working days

Fisheries science in North America is changing in response to a changing climate, new technologies, an ecosystem approach to management and new thinking about the processes affecting stock and recruitment.

Authors of the 34 chapters review the science in their particular fields and use their experience to develop informed opinions about the future. Everyone associated with fish, fisheries and fisheries management will find material that will stimulate their thinking about the future. Readers will be impressed with the potential for new discoveries, but disturbed by how much needs to be done in fisheries science if we are to sustain North American fisheries in our changing climate. Officials that manage or fund fisheries science will appreciate the urgency for the new information needed for the stewardship of fish populations and their ecosystems. Research organizations may want to keep some extra copies for a future look back into the thoughts of a wide range of fisheries professionals. Fisheries science has been full of surprises with some of the surprises having major economic impacts. It is important to minimize these impacts as the demand for seafood increases and the complexities of fisheries management increase.

Roadless Rules - The Struggle for the Last Wild Forests (Paperback): Tom Turner Roadless Rules - The Struggle for the Last Wild Forests (Paperback)
Tom Turner
R927 Discovery Miles 9 270 Ships in 12 - 17 working days

This title offers an inside look at the most successful campaign in forest conservation history. "Roadless Rules" is a fast-paced and insightful look at one of the most important, wide-ranging, and controversial efforts to protect public forests ever undertaken in the United States. In January 2000, President Clinton submitted to the Federal Register the Roadless Area Conservation Rule, prohibiting road construction and timber harvesting in designated roadless areas. Set to take effect sixty days after Clinton left office, the rule was immediately challenged by nine lawsuits from states, counties, off-road-vehicle users, and timber companies. The Bush administration refused to defend the rule and eventually sought to replace it with a rule that invited governors to suggest management policies for forests in their states. That rule was attacked by four states and twenty environmental groups and declared illegal. "Roadless Rules" offers a fascinating overview of the creation of the Clinton roadless rule and the Bush administration's subsequent replacement rule, the controversy generated, the response of the environmental community, and the legal battles that continue to rage more than seven years later. It explores the value of roadless areas and why the Clinton rule was so important to environmentalists, describes the stakeholder groups involved, and takes readers into courtrooms across the country to hear critical arguments. Author Tom Turner considers the lessons learned from the controversy, arguing that the episode represents an excellent example of how the system can work when all elements of the environmental movement work together - local groups and individuals determined to save favourite places, national organizations that represent local interests but also concern themselves with national policies, members of the executive branch who try to serve the public interest but need support from outside, and national organizations that use the legal system to support progress achieved through legislation or executive action.

Sustainable Aquaculture (Hardcover): JE Bardach Sustainable Aquaculture (Hardcover)
JE Bardach
R7,768 Discovery Miles 77 680 Ships in 12 - 17 working days

Aquaculture is a rapidly growing, successful approach to improving diets by providing more high quality fish and shellfish protein. It is also an industry with major unresolved issues because of its negative impact on the environment. This book is a pioneering effort in the development of environmentally benign aquaculture methods.

Challenges to Marine Ecosystems - Proceedings of the 41st European Marine Biology Symposium (Hardcover, 2008 ed.): John... Challenges to Marine Ecosystems - Proceedings of the 41st European Marine Biology Symposium (Hardcover, 2008 ed.)
John Davenport, Gavin M. Burnell, Tom Cross, Mark Emmerson, Rob McAllen, …
R5,819 Discovery Miles 58 190 Ships in 10 - 15 working days

This volume presents a representative sample of contributions to the 41st European Marine Biology Symposium held in September 2005 in Cork, Ireland. The theme of the symposium was 'Challenges to Marine Ecosystems' and this was divided into four sub themes; Genetics, Marine Protected Areas, Global Climate Change and Marine Ecosystems, Sustainable Fisheries and Agriculture. The world's marine ecosystems face multiple challenges, some natural, but many resulting from humankind's activities. Global climate change, driven by influences of energy usage and industrial practices, is a reality now accepted by most of the world's scientists, media and political establishments. Warming seas and rising sea levels are regarded as threats, while visionaries consider deep ocean carbon disposal as a technological opportunity. Exploitation of the seas continues apace, with repeated concerns over the impact of over-fishing, plus reservations about the environmental effects of marine aquaculture. We need to understand how resilient organisms and ecosystems are to these challenges, while responding by protecting biologically-meaningful areas of the oceans. The subthemes of the 41st European Marine Biology Symposium address all of these matters.

Sika Deer - Biology and Management of Native and Introduced Populations (Hardcover, 2009 ed.): Dale R. McCullough, Seiki... Sika Deer - Biology and Management of Native and Introduced Populations (Hardcover, 2009 ed.)
Dale R. McCullough, Seiki Takatsuki, Koichi Kaji
R11,773 Discovery Miles 117 730 Ships in 10 - 15 working days

Sika deer, the graceful spotted deer of Japanese and Chinese art, originally were native to Asia from far-east Russia to Vietnam to the islands of Japan and Taiwan. They are widely raised in captivity to supply velvet antler for traditional medicine. They also were introduced to Europe, North America, and New Zealand, where they compete or interbreed with native deer. Sika deer typically occupy lowland hardwood forests with low winter snow depths, where they thrive in sites disturbed by fire, storm, or logging. In high numbers they can severely impact vegetation though overgrazing, stripping bark from trees and damaging crop fields and forest plantations. Their numbers are high in many parts of Japan, moderate in Russia, and reduced or extinct in the wild in China, Korea, Vietnam, and Taiwan. This book explores their basic biology, behavior, and ecology, including management for sport hunting, conservation or recovery of threatened populations, and resolution of conflict with humans in native and introduced lands.

Michigan - Our Land, Our Water, Our Heritage (Hardcover): John Ray Knott Michigan - Our Land, Our Water, Our Heritage (Hardcover)
John Ray Knott; As told to Nature Conservancy of Michigan
R982 Discovery Miles 9 820 Ships in 12 - 17 working days

It's hard to imagine how Michigan was once covered with vast, unbroken forests of pine and hemlock mixed with birch and poplar and oak savannahs as far as the eye could see. Yet in the process of settling in the state and exploiting its natural resources we have drained wetlands, dammed rivers, and cut all but a few remnants of the virgin forests.The fact that we are able to enjoy our state today depends on the work of The Nature Conservancy and the various land conservancies and agencies with which it collaborates. The essays in this book illustrate the range of ecosystems that The Nature Conservancy has protected and offer compelling stories. Included are essays by nine acclaimed local authors, numerous quotes from leading figures in Michigan, and hundreds of full-color photos by well-known Michigan photographers of the land, water, and shorelines of the Great Lakes state.It features contributions from: Stephanie Mills, on the story of a Great Lakes coastal marsh on the Keweenaw Peninsula; Howard Myerson, on the Coolbough Natural Are in Newaygo County and the use of fire to restore prairie and savannah habitat; Anne-Marie Domen, who discusses efforts to preserve the quality of the Shiawassee River; Janet Kaufman, focusing on the Erie Marsh Preserve, place that serves as critical flyway for migratory birds; Jerry Dennis, talking about the dunes at Point Betsie and how they are under siege from invasive plant species; Jack Driscoll, who writes about fly fishing along the Two Hearted RiverElizabeth Kostova, on the pleasures of discovering Les Cheneaux and the northern Lake Huron shoreline; Alison Swan, who introduces the mysteries of a prairie and prairie fen in the watershed of the Paw Paw River to her daughter; and, Keith Taylor, visiting the woods in Sharon Hollow for its good birding and its sense of solitude and refuge.

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Rewilding Africa - Restoring The…
Grant Fowlds, Graham Spence Paperback  (2)
R330 R264 Discovery Miles 2 640

 

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