Download or read book An Estimate of the Western Hudson Bay Beluga Population Size in 2004 written by Pierre R. Richard and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents findings of aerial surveys of belugas that were flown in western & southern Hudson Bay between July 29 and August 6, 2004. A combination of aerial visual line-transect surveys and photographic surveys were used to estimate the numbers of belugas present in that region. These estimates were corrected for availability bias based on a correction factor obtained from a target experiment and beluga surfacing observations conducted in the similarly-silted waters of the St. Lawrence. These aerial surveys have allowed production of a most conservative estimate for this population, represented by the sum of the estimates of the Churchill-Seal and Nelson areas, and rounded to the nearest hundred.
Download or read book An Estimate of the Western Hudson Bay Beluga Population Size in 2004 written by and published by . This book was released on 2005 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents findings of aerial surveys of belugas that were flown in western & southern Hudson Bay between July 29 and August 6, 2004. A combination of aerial visual line-transect surveys and photographic surveys were used to estimate the numbers of belugas present in that region. These estimates were corrected for availability bias based on a correction factor obtained from a target experiment and beluga surfacing observations conducted in the similarly-silted waters of the St. Lawrence. These aerial surveys have allowed production of a most conservative estimate for this population, represented by the sum of the estimates of the Churchill-Seal and Nelson areas, and rounded to the nearest hundred.
Download or read book An Estimate of the Western Hudson Bay Beluga Poulation Size in 2004 written by P. R. Richard and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Estimate of the Western Hudson Bay Beluga Poulation Size in 2004 written by P. R. Richard and published by . This book was released on 2005 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arctic Report Card 2010 written by Jacqueline A. Richter-Menge and published by DIANE Publishing. This book was released on 2011-08 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tracks recent environ. changes throughout the Arctic. In 2010, it is clear that the Arctic is experiencing the impacts of a prolonged and amplified warming trend, highlighted with many record-setting events. The impact of this warming is most evident in the dramatic losses that have been observed in the ice covers that define the region. Since the loss of these ice covers serves to further feed the warming trend, the expectation is that warming will continue. This makes it increasingly unlikely that the Arctic will return to conditions that were considered normal in the later part of the 20th cent. Instead, it is very likely that Arctic climate warming will continue and records will continue to be set in years to come. Charts and tables. This is a print on demand report.
Download or read book A Little Less Arctic written by Steven H. Ferguson and published by Springer Science & Business Media. This book was released on 2010-05-30 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Arctic Canada, Hudson Bay is a site of great exploration history, aboriginal culture, and a vast marine wilderness supporting large populations of marine mammals and birds. These include some of the most iconic Arctic animals like beluga, narwhal, bowhead whales, and polar bears. Due to the challenges of conducting field research in this region, some of the mysteries of where these animals move, and how they are able to survive in such seemingly inhospitable, ice-choked habitats are just now being unlocked. For example, are polar bears being replaced by killer whales? This new information could not be more salient, as the Hudson Bay Region is undergoing rapid environmental change due to global warming, as well as increased pressures from industrial development interests. A Little Less Arctic brings together some of the world’s leading Arctic scientists to present the current state of knowledge on the physical and biological characteristics of Hudson Bay.
Download or read book Nature and Culture written by Sarah Pilgrim and published by Earthscan. This book was released on 2010 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a growing recognition that the diversity of life comprises both biological and cultural diversity. But this division is not universal and, in many cases, has been deepened by the common disciplinary divide between the natural and social sciences and our apparent need to manage and control nature. This book goes beyond divisive definitions and investigates the bridges linking biological and cultural diversity. The international team of authors explore the common drivers of loss, and argue that policy responses should target both forms of diversity in a novel integrative approach to conservation, thus reducing the gap between science, policy and practice. While conserving nature alongside human cultures presents unique challenges, this book forcefully shows that any hope for saving biological diversity is predicated on a concomitant effort to appreciate and protect cultural diversity.
Download or read book State of the Arctic Marine Biodiversity Report written by and published by Government Printing Office. This book was released on 2017 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first report of the Circumpolar Biodiversity Monitoring Program (CBMP) to summarize status and trends in biotic elements in the arctic marine environment. The effort has identified knowledge gaps in circumpolar biodiversity monitoring. CBMP is the cornerstone program of Conservation of Arctic Flora and Fauna (CAFF).
Download or read book Estimated Abundance of the Western Hudson Bay Beluga Stock from the 2015 Visual and Photographic Aerial Survey written by Cory J.D. Matthews and published by . This book was released on 2017 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adventure Tourism written by David Huddart and published by Springer Nature. This book was released on 2019-10-25 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook presents a comprehensive overview of the environmental impacts of various types of adventure tourism and how these can be best managed. This volume follows on from the authors previous textbook – ‘Outdoor Recreation: Environmental Impacts and Management’ and continues the aim of developing a deeper understanding of how tourist numbers impact the environment and to provide practical solutions to these problems. Combining their own first-hand experience and research with extensive literature review the authors' present several popular adventure tourism destinations from across the globe, including the Arctic, the Himalayas, Africa, Australia and Scotland as case studies. Chapters cover the particular challenges faced by each region: including impacts on animals and birds; the spread of invasive plant species and diseases; trail impacts on vegetation; impacts on geological, historical and archaeological sites and pollution and waste issues. A discussion and evaluation of the possible management actions for minimising these impacts and how outdoor recreation tourists can be regulated concludes each chapter. This practical and engaging textbook will be invaluable to students and scholars of adventure tourism and outdoor recreation as well as practitioners and managers working in the field.
Download or read book World Ocean Assessment written by Alan Simcock and published by Cambridge University Press. This book was released on 2017-04-17 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt: This United Nations report examines the current state of knowledge of the world's oceans, for policymakers, and provides a reference for marine science courses.
Download or read book Abundance Indices of Beluga in James Bay and Eastern Hudson Bay in Summer 2004 written by and published by . This book was released on 2005 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes & presents results from aerial systematic line transect surveys of beluga whales, Delphinapterus leucas, conducted in James Bay & eastern Hudson Bay from 7 August to 1 September 2001, and from coastal surveys conducted while in transit to the transect lines. Beluga abundance is estimated using a line transect method. The final section discusses such issues as population trends, limitations of the survey data, and problems in conducting the survey.
Download or read book Calculus for the Life Sciences written by Frederick R. Adler and published by Cengage Learning Canada Inc. This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Journal of Cetacean Research and Management written by and published by . This book was released on 2006 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Beluga Whale Western Hudson Bay Population written by and published by . This book was released on 2005 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distribution of Beluga in Western Hudson Bay with Respect to Estuary Habitat Characteristics and Vessel Traffic written by Emma Ausen and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Western Hudson Bay is undergoing habitat changes associated with increased anthropogenic activities including vessel traffic from shipping and whale watching ecotourism. These river estuaries are habitat for the Western Hudson Bay (WHB) beluga whale, the largest know beluga population. This thesis addresses two important questions, which environmental conditions contribute to critical beluga habitat in the western Hudson Bay, and what is the response of beluga to tourism vessel traffic in the Churchill River estuary. Beluga were identified in nadir imagery from a 2018 summer aerial survey of the Nelson, Churchill and Seal River estuaries, and oblique images taken of the Churchill River estuary in August 2020. The location of beluga within each survey area was modeled with respect to remotely sensed environmental data. Beluga habitat use was found to be associated with rivers as well as the concentration of total suspended sediments, and colored dissolved organic matter. Using environmental characteristics, a previously unidentified important habitat unit for beluga was discovered in the Knife River estuary. Distance measurements between belugas and tourist vessels were obtained from oblique images using trigonometric equations and georeferencing points taken in the Churchill River estuary. Through distance analysis, it was found that beluga showed attraction to kayaks, avoidance to paddleboards, and independence from motorboats and Zodiacs. Results from this thesis should inform management decisions for the WHB beluga population, including the establishment of a National Marine Protected Area which is currently under consideration.
Download or read book Review of Small Cetaceans written by Boris M. Culik and published by United Nations Environment Programme. This book was released on 2004 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication sets out the available information for the 72 species of odontocete cetaceans (toothed whales) which includes whales, dolphins and porpoises. Details are given on the distribution, population, biology and behaviour, migration patterns and risk factors for each species, with colour illustrations, maps and references to further information.
