Download or read book Killer Whales written by Robin W. Baird and published by New Line Books. This book was released on 2002 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Killer whales are the supreme predators in the ocean. This introduction to killer whales, or orcas, pieces together the latest information on their life histories. How they communicate and maintain well-established societies, with intricate family relationships, over long lifespans. We also learn that killer whales must now contend with toxic pollutants, overfishing of their prey and a host of other environmental concerns. Illustrated by the world's best wildlife photographers, this book brings us face to face with these intriguing creatures in their underwater realms.

Download or read book Transients written by John K. B. Ford and published by UBC Press. This book was released on 1999 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Killer whales are found in all oceans of the world, but nowhere are they better known than in the coastal waters of Washington, British Columbia, and Southeastern Alaska, where 25 years of study have yielded many surprising discoveries about their natural history. One of the most remarkable is that two genetically distinct forms of killer whales reside in these waters. The two groups of whales do not associate and each leads a completely different lifestyle. Residents specialize in a diet of salmon and other fish, while transients are hunters of seals, sea lions, porpoises, and even large whales. Enigmatic and elusive, these mammal-hunting whales travel in small groups, often moving unpredictably. Transients contains the latest information on the natural history of transient killer whales, including their feeding habits, social lives, and distribution patterns. It also includes photographs of and notes on over 200 individual whales. Numerous sidebars contain interesting observations on encounters with transients as well as information on how and where to best watch them.

Download or read book Behavioral Biology of Killer Whales written by Barbara C. Kirkevold and published by . This book was released on 1986 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report of the Marine Mammal Commission written by United States. Marine Mammal Commission and published by . This book was released on 1973 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report to Congress written by United States. Marine Mammal Commission and published by . This book was released on 1993 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wired Wilderness written by Etienne Benson and published by JHU Press. This book was released on 2010-12-01 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: American wildlife biologists first began fitting animals with radio transmitters in the 1950s. By the 1980s the practice had proven so useful to scientists and nonscientists alike that it became global. Wired Wilderness is the first book-length study of the origin, evolution, use, and impact of these now-commonplace tracking technologies. Combining approaches from environmental history, the history of science and technology, animal studies, and the cultural and political history of the United States, Etienne Benson traces the radio tracking of wild animals across a wide range of institutions, regions, and species and in a variety of contexts. He explains how hunters, animal-rights activists, and other conservation-minded groups gradually turned tagging from a tool for control into a conduit for connection with wildlife. Drawing on extensive archival research, interviews with wildlife biologists and engineers, and in-depth case studies of specific conservation issues—such as the management of deer, grouse, and other game animals in the upper Midwest and the conservation of tigers and rhinoceroses in Nepal—Benson illuminates telemetry's context-dependent uses and meanings as well as commonalities among tagging practices. Wired Wilderness traces the evolution of the modern wildlife biologist’s field practices and shows how the intense interest of nonscientists at once constrained and benefited the field. Scholars of and researchers involved in wildlife management will find this history both fascinating and revealing.

Download or read book Handbook of Marine Mammals written by Sam H. Ridgway and published by Elsevier. This book was released on 1998-09-23 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twenty-three separate papers, each describing a single species.

Download or read book Marine Mammal Protection Act and Endangered Species Act Implementation Program 1998 written by Anita L. Lopez and published by . This book was released on 1999 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Orca written by Jason Michael Colby and published by Oxford University Press. This book was released on 2018 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing on interviews, official records, private archives, and the author's own family history, this is the definitive story of how the feared and despised "killer" became the beloved "orca", and what that has meant for our relationship with the ocean and its creatures

Download or read book Approaches to Understanding the Cumulative Effects of Stressors on Marine Mammals written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-05-04 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine mammals face a large array of stressors, including loss of habitat, chemical and noise pollution, and bycatch in fishing, which alone kills hundreds of thousands of marine mammals per year globally. To discern the factors contributing to population trends, scientists must consider the full complement of threats faced by marine mammals. Once populations or ecosystems are found to be at risk of adverse impacts, it is critical to decide which combination of stressors to reduce to bring the population or ecosystem into a more favorable state. Assessing all stressors facing a marine mammal population also provides the environmental context for evaluating whether an additional activity could threaten it. Approaches to Understanding the Cumulative Effects of Stressors on Marine Mammals builds upon previous reports to assess current methodologies used for evaluating cumulative effects and identify new approaches that could improve these assessments. This review focuses on ways to quantify exposure-related changes in the behavior, health, or body condition of individual marine mammals and makes recommendations for future research initiatives.

Download or read book Departments of Commerce Justice and State the Judiciary and Related Agencies Appropriations for 1986 Marine Mammal Commission written by United States. Congress. House. Committee on Appropriations. Subcommittee on the Departments of Commerce, Justice, and State, the Judiciary, and Related Agencies and published by . This book was released on 1985 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Departments of Commerce Justice and State the Judiciary and Related Agencies Appropriations for 1986 written by United States. Congress. House. Committee on Appropriations. Subcommittee on the Departments of Commerce, Justice, and State, the Judiciary, and Related Agencies and published by . This book was released on 1985 with total page 1352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Washington State Status Report for the Killer Whale written by Gary J. Wiles and published by . This book was released on 2004 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fishery Bulletin written by and published by . This book was released on 1989 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Primates and Cetaceans written by Juichi Yamagiwa and published by Springer Science & Business Media. This book was released on 2013-11-20 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the editors present a view of the socioecology of primates and cetaceans in a comparative perspective to elucidate the social evolution of highly intellectual mammals in terrestrial and aquatic environments. Despite obvious differences in morphology and eco-physiology, there are many cases of comparable, sometimes strikingly similar patterns of sociobehavioral complexity. A number of long-term field studies have accumulated a substantial amount of data on the life history of various taxa, foraging ecology, social and sexual relationships, demography, and various patterns of behavior: from dynamic fission–fusion to long-term stable societies; from male-bonded to bisexually bonded to matrilineal groups. Primatologists and cetologists have come together to provide four evolutionary themes: (1) social complexity and behavioral plasticity, (2) life history strategies and social evolution, (3) the interface between behavior, demography, and conservation, and (4) selected topics in comparative behavior. These comparisons of taxa that are evolutionarily distant but live in comparable complex sociocognitive environments boost our appreciation of their sophisticated mammalian societies and can advance our understanding of the ecological factors that have shaped their social evolution. This knowledge also facilitates a better understanding of the day-to-day challenges these animals face in the human-dominated world and may improve the capacity and effectiveness of our conservation efforts.

Download or read book Recovering a Lost River written by Steven Hawley and published by Beacon Press. This book was released on 2011-03-15 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: A powerful argument for why dam removal makes good scientific, economic, and environmental sense—and requires our urgent attention The Snake River, flowing through the Northwest, was once one of the world's greatest salmon rivers. As recently as a hundred years ago, it retained some of its historic bounty with seven million fish coming home to spawn there. Now, due to damming for hydroelectricity over the past fifty years, the salmon population has dropped close to extinction. Efforts at salmon recovery, through fish ladders, hatcheries, and even trucking them over the dams, have failed. Hawley argues that the solution for the Snake River lies in dam removal, pitting the power authority and Army Corps of Engineers against a collection of conservationists, farmers, commercial and recreational fishermen, and the Nez Perce tribe. He also demonstrates the interconnectedness of the river's health to Orca whales in Puget Sound, local economies, fresh water rights, and energy independence. This regional battle has garnered national interest, and is part of a widespread river-restoration movement that stretches from Maine's Kennebec to California's Klamath. In one instance, Butte Creek salmon rebounded from a paltry fourteen fish to twenty thousand within just a few years of rewilding their river, showing the incredible resiliency of nature when given the slightest chance. In this timely book, Hawley shows how river restoration, with dam removal as its centerpiece, is not only virtuous ecological practice, but a growing social and economic enterprise.

Download or read book Final Environmental Impact Statement written by United States. Minerals Management Service. Pacific OCS Region and published by . This book was released on 1983 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: