Download or read book The Decline of the Southern Resident Population of Killer Whales written by Kelsey Abbott and published by . This book was released on 2004 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Marine Mammal Populations and Ocean Noise written by National Research Council and published by National Academies Press. This book was released on 2005-01-24 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Attention has been drawn to the subject of how ocean noise affects marine mammals by a series of marine mammal strandings, lawsuits, and legislative hearings, and most recently, the report from the U.S. Commission on Ocean Policy. One way to assess the impact of ocean noise is to consider whether it causes changes in animal behavior that are "biologically significant," that is, those that affect an animal's ability to grow, survive, and reproduce. This report offers a conceptual model designed to clarify which marine mammal behaviors are biologically significant for conservation purposes. The report is intended to help scientists and policymakers interpret provisions of the federal Marine Mammal Protection Act.
Download or read book Southern Resident Killer Whales Orcinus Orca written by Deborah A. Giles and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation concerns the southern resident killer whales (Orcinus orca), a genetically isolated population of fish-eating killer whales that frequent the international waters of the Salish Sea between the United States and Canada in the eastern Pacific Ocean. Research was conducted from June 1 to October 31, 2007 and from June 7 to October 31, 2008, between geographic coordinates: 48°12' to 49° N latitude by 122°43' to 123°50° W longitude. The southern resident killer whale population has experienced multiple fluctuations since population surveys were initiated by the Center for Whale Research (CWR) in the mid 1970's. In November 2005, the U.S. National Oceanic and Atmospheric Administration's National Marine Fisheries Service (NMFS), Northwest Regional Office listed the southern resident killer whales as an endangered distinct population segment of the species Orcinus orca under the United States Endangered Species Act (ESA). Several risk factors including reductions in the quantity and quality of prey (salmon), exposure to persistent toxins, and disturbance from vessel presence and associated noise were identified as contributing to the decline of this already small population. With the listing under the ESA, critical habitat was designated in the inland waters around the U.S. San Juan Islands, Washington State and the Canadian Gulf Islands, British Columbia, Canada. Chapter one, Managing Vessel-based Killer Whale Watching: A Critical Assessment of the Evolution from Voluntary Guidelines to Regulations in the Salish Sea, provides background on the southern resident killer whales and the robust international whale watching industry in the region. This chapter also provides a detailed history of local, state, federal and international vessel laws and guidelines for watching whales in the Salish Sea. Chapter two, Non-invasive methods to study southern resident killer whales and vessel compliance with regulations, describes a novel equipment package, consisting of a differential GPS integrated with a digital compass and laser rangefinder that allowed me to collect accurate geo-referenced locations and behavioral data on whales and vessels throughout the whale's critical habitat. To improve both the spatial and temporal data on whale-vessel interactions, the information collected with this equipment was used to assess vessel compliance with local, state and federal laws and the regionally accepted best-practices Be Whale Wise Guidelines. Chapter three, The effects of vessels on group cohesion and behavior of southern resident killer whales (Orcinus orca), discusses research investigating changes in killer whale group cohesion in response to vessel density, distance and mode of operation. Future cetacean studies would benefit from using the equipment and methods presented here, especially in areas that are not conducive to land-based theodolite collected data.
Download or read book The Rights of Nature written by David R. Boyd and published by ECW Press. This book was released on 17-09-05 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important and timely recipe for hope for humans and all forms of life Palila v Hawaii. New ZealandÕs Te Urewera Act. Sierra Club v Disney. These legal phrases hardly sound like the makings of a revolution, but beyond the headlines portending environmental catastrophes, a movement of immense import has been building Ñ in courtrooms, legislatures, and communities across the globe. Cultures and laws are transforming to provide a powerful new approach to protecting the planet and the species with whom we share it. Lawyers from California to New York are fighting to gain legal rights for chimpanzees and killer whales, and lawmakers are ending the era of keeping these intelligent animals in captivity. In Hawaii and India, judges have recognized that endangered species Ñ from birds to lions Ñ have the legal right to exist. Around the world, more and more laws are being passed recognizing that ecosystems Ñ rivers, forests, mountains, and more Ñ have legally enforceable rights. And if nature has rights, then humans have responsibilities. In The Rights of Nature, noted environmental lawyer David Boyd tells this remarkable story, which is, at its heart, one of humans as a species finally growing up. Read this book and your world view will be altered forever.
Download or read book Species in the Spotlight written by and published by . This book was released on 2016 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Southern Resident killer whale DPS was listed as endangered under the Endangered Species Act (ESA) in 2005 following an almost 20% decline in the population. The Southern Residents were chosen as one of the eight most at-risk species because the population has relatively high mortality and low reproduction and they are currently well below the population growth goals identified in the Recovery Plan (NMFS 2008). Unlike other North Pacific killer whale populations, which have generally been increasing since federal protection was initiated in the 1970's, the Southern Resident population remains small and vulnerable and has not had a net increase in abundance since the mid-1980s. The comprehensive recovery program requires engagement from vital partners and long-term support over a large range from California to Alaska"--page 2, paragraph 1.
Download or read book We are Puget Sound written by David L. Workman and published by Braided River. This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Puget Sound is a magnificent and intricate estuary, the very core of life in Western Washington. Yet it's also a place of broader significance: rivers rush from the Cascade and Olympic mountains and Canada's coastal ranges through varied watersheds to feed the Sound, which forms the southern portion of a complex, international ecosystem known as the Salish Sea. A rich, life-sustaining home shared by two countries, as well as 50-plus Native American Tribes and First Nations, the Salish Sea is also a huge economic engine, with outdoor recreation and commercial shellfish harvesting alone worth $10.2 billion. But this spectacular inland sea is suffering. Pollution and habitat loss, human population growth, ocean acidification, climate change, and toxins from wastewater and storm runoff present formidable challenges. We Are Puget Sound amplifies the voices and ideas behind saving Puget Sound, and it will help engage and inspire citizens around the region to join together to preserve its ecosystem and the livelihoods that depend on it.
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 Beneath the Surface written by John Hargrove and published by St. Martin's Press. This book was released on 2015-03-24 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: *Now a New York Times Best Seller* Over the course of two decades, John Hargrove worked with 20 different whales on two continents and at two of SeaWorld's U.S. facilities. For Hargrove, becoming an orca trainer fulfilled a childhood dream. However, as his experience with the whales deepened, Hargrove came to doubt that their needs could ever be met in captivity. When two fellow trainers were killed by orcas in marine parks, Hargrove decided that SeaWorld's wildly popular programs were both detrimental to the whales and ultimately unsafe for trainers. After leaving SeaWorld, Hargrove became one of the stars of the controversial documentary Blackfish. The outcry over the treatment of SeaWorld's orca has now expanded beyond the outlines sketched by the award-winning documentary, with Hargrove contributing his expertise to an advocacy movement that is convincing both federal and state governments to act. In Beneath the Surface, Hargrove paints a compelling portrait of these highly intelligent and social creatures, including his favorite whales Takara and her mother Kasatka, two of the most dominant orcas in SeaWorld. And he includes vibrant descriptions of the lives of orcas in the wild, contrasting their freedom in the ocean with their lives in SeaWorld. Hargrove's journey is one that humanity has just begun to take-toward the realization that the relationship between the human and animal worlds must be radically rethought.
Download or read book NOAA Fisheries Report written by United States. National Marine Fisheries Service and published by . This book was released on 2004 with total page 48 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 Environmental ScienceBites written by Kylienne A. Clark and published by The Ohio State University. This book was released on 2015-09-15 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was written by undergraduate students at The Ohio State University (OSU) who were enrolled in the class Introduction to Environmental Science. The chapters describe some of Earth's major environmental challenges and discuss ways that humans are using cutting-edge science and engineering to provide sustainable solutions to these problems. Topics are as diverse as the students, who represent virtually every department, school and college at OSU. The environmental issue that is described in each chapter is particularly important to the author, who hopes that their story will serve as inspiration to protect Earth for all life.
Download or read book Killer Whale written by Carol Inskipp and published by Capstone Classroom. This book was released on 2005 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to killer whales and the reasons that their numbers have been declining.
Download or read book Population Viability Analysis for the Southern Resident Population of the Killer Whale Orcinus Orca written by Martin Taylor (Ph. D.) and published by . This book was released on 2000 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The killer whale, once abundant in the Pacific Northwest waters, has been declining in population since 1996. This is attributed to the lack of preferred foods, pollution, and disturbance from whale watching boats.
Download or read book Ethology and Behavioral Ecology of Odontocetes written by Bernd Würsig and published by Springer. This book was released on 2019-08-02 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book concentrates on the marine mammalian group of Odontocetes, the toothed whales, dolphins, and porpoises. In 23 chapters, a total of 40 authors describe general patterns of ethological concepts of odontocetes in their natural environments, with a strong bent towards behavioral ecology. Examples are given of particularly well-studied species and species groups for which enough data exist, especially from the past 15 years. The aim is to give a modern flavor of present knowledge of ethology and behavior of generally large-brained behaviorally flexible mammals that have evolved quite separately from social mammals on land. As well, the plight of populations and species due to humans is described in multiple chapters, with the goal that an understanding of behavior can help to solve or alleviate at least some human-made problems.
Download or read book The Breath of a Whale written by Leigh Calvez and published by Sasquatch Books. This book was released on 2019-02-26 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ode to marine life and the natural world, from the New York Times–bestselling author of The Hidden Life of Owls This “intimate and spirited” essay collection “offers us the whale watch most of us can only dream of” as they reveal the elusive lives of whales in the Pacific Ocean—home to orcas, humpbacks, blue, gray, and sperm whales (Sy Montgomery, author of The Soul of an Octopus). Leigh Calvez has spent a dozen years researching, observing, and probing the lives of the giants of the deep. Here, she relates the stories of nature's most remarkable creatures, including the familial orcas in the waters of Washington State and British Columbia; the migratory humpbacks; the ancient, deep-diving blue whales, the largest animals on the planet. The lives of these whales are conveyed through the work of dedicated researchers who have spent decades tracking them along their secretive routes that extend for thousands of miles, gleaning their habits and sounds and distinguishing peculiarities. Calvez author invites the reader onto a small research catamaran maneuvering among 100-foot long blue whales off the coast of California; or to join the task of monitoring patterns of humpback whale movements at the ocean surface: tail throw, flipper slap, fluke up, or blow. To experience whales is breathtaking. To understand their lives deepens our connection with the natural world.
Download or read book Killer Whales written by Michael A. Bigg and published by Phanton Press & Publishers. This book was released on 1987 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
