Ethology and Behavioral Ecology of Sea Otters and Polar Bears

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Author :
Publisher : Springer Nature
ISBN 13 : 3030667960
Total Pages : 366 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Ethology and Behavioral Ecology of Sea Otters and Polar Bears by : Randall W. Davis

Download or read book Ethology and Behavioral Ecology of Sea Otters and Polar Bears written by Randall W. Davis and published by Springer Nature. This book was released on 2021-07-03 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sea otters and polar bears are carnivorous marine mammals that still resemble their terrestrial ancestors. Compared with Cetacea (whales and dolphins), Sirenia (dugongs and manatees), and Pinnipedia (seals, sea lions, and walrus), they are less adapted for an aquatic life and the most recently evolved among marine mammals. Sea otters are amphibious but seldom come ashore, and polar bears primarily occur on sea ice or along the shore. When at sea, both species spend most of their time swimming at the surface or making short, shallow dives when foraging or pursuing prey. Indeed, polar bears rarely pursue seals in water. Nevertheless, polar bears are powerful swimmers and will stalk seals from the water. As with many other large carnivores, they are solitary hunters. Although sea otters are gregarious and form aggregations at sea called rafts, they are primarily asocial. Except during mating, the principal interaction among sea otters occurs between a female and offspring during the six-month dependency period. In large carnivores (e.g., wolves and lions) that feed on ungulates, sociality and cooperation are favored because of the need to capture large prey and defend carcasses. Polar bears, which are the largest terrestrial carnivore, are solitary hunters of seals and are neither gregarious nor social. Males and females briefly associate during courtship and mating. During this time, males aggressively compete for females. At other times, males generally avoid each other except for aggregations of males that form while summering on land, and females with cubs avoid males, which are known for infanticide. As with sea otters, the interaction of polar bears outside of mating occurs between a female and her offspring during the 2-3 year dependency period. This interaction is critically important when altricial cubs are born in the winter den. This book provides new insight into the ethology and behavioral ecology of sea otters and polar bears. Each chapter reviews the discoveries of previous studies and integrates recent research using new techniques and technology. The authors also address historic and current anthropogenic challenges for their survival as climate change alters entire marine ecosystems.

Effects of Anthropogenic Noise on Animals

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Publisher : Springer
ISBN 13 : 1493985744
Total Pages : 322 pages
Book Rating : 4.4/5 (939 download)

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Book Synopsis Effects of Anthropogenic Noise on Animals by : Hans Slabbekoorn

Download or read book Effects of Anthropogenic Noise on Animals written by Hans Slabbekoorn and published by Springer. This book was released on 2018-08-20 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past several years, many investigators interested in the effects of man-made sounds on animals have come to realize that there is much to gain from studying the broader literature on hearing sound and the effects of sound as well as data from the effects on humans. It has also become clear that knowledge of the effects of sound on one group of animals (e.g., birds or frogs) can guide studies on other groups (e.g., marine mammals or fishes) and that a review of all such studies together would be very useful to get a better understanding of the general principles and underlying cochlear and cognitive mechanisms that explain damage, disturbance, and deterrence across taxa. The purpose of this volume, then, is to provide a comprehensive review of the effects of man-made sounds on animals, with the goal of fulfilling two major needs. First, it was thought to be important to bring together data on sound and bioacoustics that have implications across all taxa (including humans) so that such information is generally available to the community of scholars interested in the effects of sound. This is done in Chaps. 2-5. Second, in Chaps. 6-10, the volume brings together what is known about the effects of sound on diverse vertebrate taxa so that investigators with interests in specific groups can learn from the data and experimental approaches from other species. Put another way, having an overview of the similarities and discrepancies among various animal groups and insight into the “how and why” will benefit the overall conceptual understanding, applications in society, and all future research.

Harvest of Fish and Wildlife

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Author :
Publisher : CRC Press
ISBN 13 : 1000389227
Total Pages : 483 pages
Book Rating : 4.0/5 (3 download)

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Book Synopsis Harvest of Fish and Wildlife by : Kevin L. Pope

Download or read book Harvest of Fish and Wildlife written by Kevin L. Pope and published by CRC Press. This book was released on 2021-06-06 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harvest of Fish and Wildlife: New Paradigms for Sustainable Management unites experts in wildlife and fishery sciences for an interdisciplinary overview of harvest management. This book presents unique insights for embracing the complete social-ecological system to ensure a sustainable future. It educates users on evolutionary and population dynamics; social and political influences; hunter and angler behavior; decision processes; impacts of regulations; and stakeholder involvement. Features: Written by twenty-four teams of leading scientists and managers. Promotes transparent justification for fishing and hunting regulations. Provides examples for integrating decision making into management. Emphasizes creativity in management by integrating art and science. This book appeals to population biologists, evolutionary biologists and social scientists. It is a key resource for on-the-ground managers and research scientists developing harvesting applications. As the book’s contributors explain: “Making decisions that are robust to uncertainty...is a paradigm shift with a lot of potential to improve outcomes for fish and wildlife populations.” –Andrew Tyre and Brigitte Tenhumberg “Temporal shifts in system states...must somehow be anticipated and dealt with to derive harvest policies that remain optimal in the long term.” –Michael Conroy “Proactive, effective management of sportspersons...will be essential in the new paradigm of harvest management.” –Matthew Gruntorad and Christopher Chizinski

King of Fish

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Publisher : Basic Books
ISBN 13 : 0786739932
Total Pages : 306 pages
Book Rating : 4.7/5 (867 download)

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Book Synopsis King of Fish by : David Montgomery

Download or read book King of Fish written by David Montgomery and published by Basic Books. This book was released on 2009-04-28 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: The salmon that symbolize the Pacific Northwest's natural splendor are now threatened with extinction across much of their ancestral range. In studying the natural and human forces that shape the rivers and mountains of that region, geologist David Montgomery has learned to see the evolution and near-extinction of the salmon as a story of changing landscapes. Montgomery shows how a succession of historical experiences -first in the United Kingdom, then in New England, and now in the Pacific Northwest -repeat a disheartening story in which overfishing and sweeping changes to rivers and seas render the world inhospitable to salmon. In King of Fish , Montgomery traces the human impacts on salmon over the last thousand years and examines the implications both for salmon recovery efforts and for the more general problem of human impacts on the natural world. What does it say for the long-term prospects of the world's many endangered species if one of the most prosperous regions of the richest country on earth cannot accommodate its icon species? All too aware of the possible bleak outcome for the salmon, King of Fish concludes with provocative recommendations for reinventing the ways in which we make environmental decisions about land, water, and fish.

Salmon Ranching

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Author :
Publisher :
ISBN 13 :
Total Pages : 462 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Salmon Ranching by : John E. Thorpe

Download or read book Salmon Ranching written by John E. Thorpe and published by . This book was released on 1980 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Writing on the Wall

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Publisher : Universal-Publishers
ISBN 13 : 1581122659
Total Pages : 225 pages
Book Rating : 4.5/5 (811 download)

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Book Synopsis Writing on the Wall by : Philip Van Notten

Download or read book Writing on the Wall written by Philip Van Notten and published by Universal-Publishers. This book was released on 2005 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the significance of '9/11' is subject to debate, it is symbolic of a general sentiment of discontinuity whereby society is vulnerable to undefined and highly disruptive events. Recent catalysts of this sentiment are eye-catching developments such as the SARS (Severe Acute Respiratory Syndrome) and bird flu outbreaks, the Enron and Parmalat scandals, political assassinations in Sweden and the Netherlands, regime changes in Iraq and Afghanistan, and terrorist attacks in Bali, Istanbul, Madrid, and various parts of the Middle East. However, recent discontinuities should not be seen as evidence that discontinuities occur more frequently now than they did before. Looking back in history we see that disruptive processes are common. For example, 25 years ago few Europeans would have predicted the upcoming upheavals on their own continent: the collapse of communism, Berlin as the capital of a reunited Germany, the wars in the former Yugoslavia, the single European currency, and the near doubling of the number of European Union member states. Changes elsewhere have been no less discontinuous and unforeseen: the fall of the Asian tigers, the emergence of the Internet and mobile telecommunication, and the presidency of Nelson Mandela. Societal discontinuity is a relatively new area of concern in policy development. Since the 1970s the consideration of change and discontinuity has gained some ground over predictive forecasting, which tended to reason from continuous developments and linear processes. Rather than making forecasting the future, it has become popular to use scenarios as a manner to consider several possible futures. Scenarios are coherent descriptions of alternative hypothetical futures that reflect different perspectives on past, present, and future developments, which can serve as a basis for action. Scenario development aims to combine analytical knowledge with creative thinking in an effort to capture a wide range of possible future developments in a limited number of outlooks. Scenario development assumes that the future is uncertain and the directions in which current developments might range from the conventional to the revolutionary. In theory, scenario development is a way to consider future discontinuity. However, there are indications that the theoretical promise is not reflected in scenario practice. Research has shown that scenarios do not consider the idea of discontinuity as a matter of course. In our research, we found that a scenario study would benefit from efforts to create and foster a 'culture of curiosity' for exploring the future and the possible discontinuities rather than simply commissioning a scenario study to provide insights about the future. Only then can one read the writing on the wall of future developments.

The Bears of Brooks Falls: Wildlife and Survival on Alaska's Brooks River

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Author :
Publisher : The Countryman Press
ISBN 13 : 168268511X
Total Pages : 279 pages
Book Rating : 4.6/5 (826 download)

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Book Synopsis The Bears of Brooks Falls: Wildlife and Survival on Alaska's Brooks River by : Michael Fitz

Download or read book The Bears of Brooks Falls: Wildlife and Survival on Alaska's Brooks River written by Michael Fitz and published by The Countryman Press. This book was released on 2021-03-09 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: A natural history and celebration of the famous bears and salmon of Brooks River. On the Alaska Peninsula, where exceptional landscapes are commonplace, a small river attracts attention far beyond its scale. Each year, from summer to early fall, brown bears and salmon gather at Brooks River to create one of North America’s greatest wildlife spectacles. As the salmon leap from the cascade, dozens of bears are there to catch them (with as many as forty-three bears sighted in a single day), and thousands of people come to watch in person or on the National Park Service’s popular Brooks Falls Bearcam. The Bears of Brooks Falls tells the story of this region and the bears that made it famous in three parts. The first forms an ecological history of the region, from its dormancy 30,000 years ago to the volcanic events that transformed it into the Valley of Ten Thousand Smokes. The central and longest section is a deep dive into the lives of the wildlife along the Brooks River, especially the bears and salmon. Readers will learn about the bears’ winter hibernation, mating season, hunting rituals, migration patterns, and their relationship with Alaska’s changing environment. Finally, the book explores the human impact, both positive and negative, on this special region and its wild population.

Small-scale Aquaponic Food Production

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Publisher : Fao
ISBN 13 : 9789251085325
Total Pages : 0 pages
Book Rating : 4.0/5 (853 download)

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Book Synopsis Small-scale Aquaponic Food Production by : Christopher Somerville

Download or read book Small-scale Aquaponic Food Production written by Christopher Somerville and published by Fao. This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical paper begins by introducing the concept of aquaponics, including a brief history of its development and its place within the larger category of soil-less culture and modern agriculture. It discusses the main theoretical concepts of aquaponics, including the nitrogen cycle and the nitrification process, the role of bacteria, and the concept of balancing an aquaponic unit. It then moves on to cover important considerations of water quality parameters, water testing, and water sourcing for aquaponics, as well as methods and theories of unit design, including the three main methods of aquaponic systems: media beds, nutrient film technique, and deep water culture. The publication discusses in detail the three groups of living organisms (bacteria, plants and fish) that make up the aquaponic ecosystem. It also presents management strategies and troubleshooting practices, as well as related topics, specifically highlighting local and sustainable sources of aquaponic inputs. The publication also includes nine appendixes that present other key topics: ideal conditions for common plants grown in aquaponics; chemical and biological controls of common pests and diseases including a compatible planting guide; common fish diseases and related symptoms, causes and remedies; tools to calculate the ammonia produced and biofiltration media required for a certain fish stocking density and amount of fish feed added; production of homemade fish feed; guidelines and considerations for establishing aquaponic units; a cost-benefit analysis of a small-scale, media bed aquaponic unit; a comprehensive guide to building small-scale versions of each of the three aquaponic methods; and a brief summary of this publication designed as a supplemental handout for outreach, extension and education.

Marine Recreational Fisheries

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Author :
Publisher :
ISBN 13 :
Total Pages : 376 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Marine Recreational Fisheries by :

Download or read book Marine Recreational Fisheries written by and published by . This book was released on 1989 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Biological Opinion [that Address the Potential Effects on Sacramento River Winter-run Chinook Salmon from the Bureau of Reclamation's Proposed Los Vaqueros Project]

Download Biological Opinion [that Address the Potential Effects on Sacramento River Winter-run Chinook Salmon from the Bureau of Reclamation's Proposed Los Vaqueros Project] PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Biological Opinion [that Address the Potential Effects on Sacramento River Winter-run Chinook Salmon from the Bureau of Reclamation's Proposed Los Vaqueros Project] by :

Download or read book Biological Opinion [that Address the Potential Effects on Sacramento River Winter-run Chinook Salmon from the Bureau of Reclamation's Proposed Los Vaqueros Project] written by and published by . This book was released on 1993 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nature Based Solutions for Wastewater Treatment

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Publisher : IWA Publishing
ISBN 13 : 9781789062250
Total Pages : 344 pages
Book Rating : 4.0/5 (622 download)

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Book Synopsis Nature Based Solutions for Wastewater Treatment by : Katharine Cross

Download or read book Nature Based Solutions for Wastewater Treatment written by Katharine Cross and published by IWA Publishing. This book was released on 2021-08-15 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are 2.4 billion people without improved sanitation and another 2.1 billion with inadequate sanitation (i.e. wastewater drains directly into surface waters), and despite improvements over the past decades, the unsafe management of fecal waste and wastewater continues to present a major risk to public health and the environment (UN, 2016). There is growing interest in low cost sanitation solutions which harness natural systems. However, it can be difficult for wastewater utility managers to understand under what conditions such nature-based solutions (NBS) might be applicable and how best to combine traditional infrastructure, for example an activated sludge treatment plant, with an NBS such as treatment wetlands. There is increasing scientific evidence that treatment systems with designs inspired by nature are highly efficient treatment technologies. The cost-effective design and implementation of ecosystems in wastewater treatment is something that exists and has the potential to be further promoted globally as both a sustainable and practical solution. This book serves as a compilation of technical references, case examples and guidance for applying nature-based solutions for treatment of domestic wastewater, and enables a wide variety of stakeholders to understand the design parameters, removal efficiencies, costs, co-benefits for both people and nature and trade-offs for consideration in their local context. Examples through case studies are from across the globe and provide practical insights into the variety of potentially applicable solutions.

The California State Water Project

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Author :
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The California State Water Project by : California. Dept. of Water Resources

Download or read book The California State Water Project written by California. Dept. of Water Resources and published by . This book was released on 1981 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Washington's Sport of Kings

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Author :
Publisher : Frank Amato Publications
ISBN 13 : 9781571885364
Total Pages : pages
Book Rating : 4.8/5 (853 download)

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Book Synopsis Washington's Sport of Kings by : Frank Haw

Download or read book Washington's Sport of Kings written by Frank Haw and published by Frank Amato Publications. This book was released on 2015-11-10 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Once attracting about as many participants as the combined attendance of Seattle's three major league teams, salmon fishing was Washington's first major league sport. In past years this state's catch exceeded the combined sport salmon catches of California, Oregon, British Columbia and Alaska. Since then, Washington anglers often choose to travel to British Columbia or Alaska to catch salmon many of which originate in Washington! In "Washington's Sport of Kings" the development of salmon angling in Washington's marine waters is documented from its ancient origins, through the Puget Sound resort and boathouse era, heydays on the outer coast, to the present. Early salmon derbies and associated scandals, a knock-down fist fight between a prominent tribal member and a top State fish cop, and a Governor caught using a state-owned boat for his private yacht, are among the many factual vignettes. Many controversial issues impacting salmon angling are addressed in this captivating book, inc

Guidelines for Drinking-water Quality

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Author :
Publisher : World Health Organization
ISBN 13 : 9789241545037
Total Pages : 260 pages
Book Rating : 4.5/5 (45 download)

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Book Synopsis Guidelines for Drinking-water Quality by : World Health Organization

Download or read book Guidelines for Drinking-water Quality written by World Health Organization and published by World Health Organization. This book was released on 1993 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes the methods used in the surveillance of drinking water quality in the light of the special problems of small-community supplies, particularly in developing countries, and outlines the strategies necessary to ensure that surveillance is effective.

Haa Léelk'w Hás Aaní Saax'ú

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Publisher : University of Washington Press
ISBN 13 : 9780295992174
Total Pages : 0 pages
Book Rating : 4.9/5 (921 download)

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Book Synopsis Haa Léelk'w Hás Aaní Saax'ú by : Thomas F. Thornton

Download or read book Haa Léelk'w Hás Aaní Saax'ú written by Thomas F. Thornton and published by University of Washington Press. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Haa Leelk'w Has Aan' Saaxu / Our Grandparents' Names on the Land presents the results of a collaborative project with Native communities of Southeast Alaska to record indigenous geographic names. Documenting and analyzing more than 3,000 Tlingit, Haida, and other Native names on the land, it highlights their descriptive force and cultural significance. With community maps, tables, and photographs, this book will be invaluable for those seeking to understand Alaska Native geographic perspectives. As Tlingits from the Hoonah Indian Association explain in the book: "Long before Russian, French, Spanish, and British explorers mapped and named the mountains and bays of the Huna Tlingit homeland, we identified special places in our own vibrant, descriptive ways. Tlingit place names reflect important natural resources, ancestral stories, sacred places, and major geological and historic events. Our place names describe more than just inanimate locations for we perceive the mountains, glaciers, and streams to be as alive and aware as ourselves. Rather, they capture the history, emotions, and stories of our enduring relationship with a living, evolving landscape." "The new benchmark against which all future work will be measured." -Richard Dauenhauer, author of Russians in Tlingit America "Thomas Thornton and his Tlingit colleagues show how 'grandparents' names on the land' provide exquisite scaffolding for human ecologies in North America's far northwest--a moral universe inhabited by a community of beings in constant communication and exchange. This book will be a resource for the ages." -Julie Cruikshank, author of Do Glaciers Listen? Local Knowledge, Colonial Encounters, and Social Imagination "Restoring Tlingit placenames and their meanings will root our people back in place and decolonize the landscape, and Thornton has provided us with a fundamental tool to do exactly that. Sh t--oghaa xhat ditee--I am grateful." -Lance A. Twitchell, Xh'unei, University of Alaska Southeast Thomas F. Thornton is senior research fellow and director of the Environmental Change and Management Program at the Environmental Change Institute, School of Geography and the Environment, University of Oxford He is the author of Being and Place among the Tlingit.

Beluga Days

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Publisher : The Mountaineers Books
ISBN 13 : 9781594850011
Total Pages : 0 pages
Book Rating : 4.8/5 (5 download)

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Book Synopsis Beluga Days by : Nancy Lord

Download or read book Beluga Days written by Nancy Lord and published by The Mountaineers Books. This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A search for the endangered beluga whales of Cook Inlet, Alaska, becomes a personal journey and an expose of the forces arrayed against this fascinating--and troubled--species.

Molecular Genetics of Marine Mammals

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Publisher :
ISBN 13 :
Total Pages : 404 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Molecular Genetics of Marine Mammals by : Andrew E. Dizon

Download or read book Molecular Genetics of Marine Mammals written by Andrew E. Dizon and published by . This book was released on 1997 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: