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Age And Sex Ratios Of Sea Ducks Wintering In The Strait Of Georgia British Columbia Canada 2003 2004 2008 2014 2015
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Book Synopsis Sex and Age-Specific Distributions of Sea Ducks Wintering in the Strait of Georgia, British Columbia by : Samuel A. Iverson
Download or read book Sex and Age-Specific Distributions of Sea Ducks Wintering in the Strait of Georgia, British Columbia written by Samuel A. Iverson and published by . This book was released on 2006-01-01 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study uses sex and age ratios calculated from direct visual counts to assess the demographic structure of the nine most common sea duck species wintering in the Strait of Georgia, British Columbia. It concludes that winter sex and age ratio surveys are a reliable, inexpensive means of gathering important demographic data.
Book Synopsis Ducks, Geese, and Swans of the World by : Paul A. Johnsgard
Download or read book Ducks, Geese, and Swans of the World written by Paul A. Johnsgard and published by . This book was released on 1978 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of this book is to provide information on each of the species of the waterfowl family in a standardized format and easily accessible manner.
Book Synopsis Birds of the Chukchi Peninsula and Wrangel Island by : Leonid Aleksandrovich Portenko
Download or read book Birds of the Chukchi Peninsula and Wrangel Island written by Leonid Aleksandrovich Portenko and published by . This book was released on 1989 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Marine Anthropogenic Litter by : Melanie Bergmann
Download or read book Marine Anthropogenic Litter written by Melanie Bergmann and published by Springer. This book was released on 2015-06-01 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes how man-made litter, primarily plastic, has spread into the remotest parts of the oceans and covers all aspects of this pollution problem from the impacts on wildlife and human health to socio-economic and political issues. Marine litter is a prime threat to marine wildlife, habitats and food webs worldwide. The book illustrates how advanced technologies from deep-sea research, microbiology and mathematic modelling as well as classic beach litter counts by volunteers contributed to the broad awareness of marine litter as a problem of global significance. The authors summarise more than five decades of marine litter research, which receives growing attention after the recent discovery of great oceanic garbage patches and the ubiquity of microscopic plastic particles in marine organisms and habitats. In 16 chapters, authors from all over the world have created a universal view on the diverse field of marine litter pollution, the biological impacts, dedicated research activities, and the various national and international legislative efforts to combat this environmental problem. They recommend future research directions necessary for a comprehensive understanding of this environmental issue and the development of efficient management strategies. This book addresses scientists, and it provides a solid knowledge base for policy makers, NGOs, and the broader public.
Book Synopsis Current Ornithology Volume 17 by : Charles F. Thompson
Download or read book Current Ornithology Volume 17 written by Charles F. Thompson and published by Springer Science & Business Media. This book was released on 2010-09-09 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current Ornithology publishes authoritative, up-to-date, scholarly reviews of topics selected from the full range of current research in avian biology. Topics cover the spectrum from the molecular level of organization to population biology and community ecology. The series seeks especially to review (1) fields in which an abundant recent literature will benefit from synthesis and organization, or (2) newly emerging fields that are gaining recognition as the result of recent discoveries or shifts in perspective, or (3) fields in which students of vertebrates may benefit from comparisons of birds with other classes. All chapters are invited, and authors are chosen for their leadership in the subjects under review.
Book Synopsis Arctic Social Indicators by : Joan Nymand Larsen
Download or read book Arctic Social Indicators written by Joan Nymand Larsen and published by Nordic Council of Ministers. This book was released on 2015-02-18 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arctic Social Indicators II (ASI-II) is a follow-up activity to ASI-I (2010) and the first Arctic Human Development Report (AHDR, 2004). The objective of ASI (2010) was to develop a small set of Arctic specific social indicators that as a collective would help facilitate the tracking and monitoring of change in human development in the Arctic. ASI indicators were developed for six domains that are considered prominent aspects of human development in the Arctic by residents in the Arctic: Health and Population; Material Wellbeing; Education; Cultural Wellbeing; Contact with Nature; and Fate Control. The objective of the present volume of ASI is to present and discuss the findings of the work on measuring the set of recommended ASI indicators; to conduct a series of regional case studies to illustrate and test the strength and applicability of these indicators; to identify and describe data challenges for the Arctic region specifically in relation to these Arctic specific indicators and to draw conclusions about the ability of ASI to track changes in human development; and to formulate policy relevant conclusions for the long-term monitoring of Arctic human development. The core content of ASI-II is a set of five carefully selected case studies, which form the basis for drawing conclusions about the applicability of the ASI indicators and for formulating policy relevant conclusions. Case studies are performed for Sakha Republic (Yakutia); the West-Nordic Region; Northwest Territories; Inuit Regions of Alaska; and the Inuit World, with the Survey of Living Conditions in the Arctic (SLiCA) used to augment ASI. Findings on the state and changes in Arctic human development and wellbeing are presented. Based on our analysis and conclusions from the five case studies the framework for an ASI monitoring system is introduced. We argue that the long-term monitoring of human development in the Arctic would be greatly facilitated by the regular and frequent collection and reporting of relevant data, including those required for the proposed small set of ASI indicators.
Book Synopsis Conservation Biology for All by : Navjot S. Sodhi
Download or read book Conservation Biology for All written by Navjot S. Sodhi and published by OUP Oxford. This book was released on 2010-01-08 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conservation Biology for All provides cutting-edge but basic conservation science to a global readership. A series of authoritative chapters have been written by the top names in conservation biology with the principal aim of disseminating cutting-edge conservation knowledge as widely as possible. Important topics such as balancing conversion and human needs, climate change, conservation planning, designing and analyzing conservation research, ecosystem services, endangered species management, extinctions, fire, habitat loss, and invasive species are covered. Numerous textboxes describing additional relevant material or case studies are also included. The global biodiversity crisis is now unstoppable; what can be saved in the developing world will require an educated constituency in both the developing and developed world. Habitat loss is particularly acute in developing countries, which is of special concern because it tends to be these locations where the greatest species diversity and richest centres of endemism are to be found. Sadly, developing world conservation scientists have found it difficult to access an authoritative textbook, which is particularly ironic since it is these countries where the potential benefits of knowledge application are greatest. There is now an urgent need to educate the next generation of scientists in developing countries, so that they are in a better position to protect their natural resources.
Book Synopsis Bird Species by : Dieter Thomas Tietze
Download or read book Bird Species written by Dieter Thomas Tietze and published by Springer. This book was released on 2018-11-19 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: The average person can name more bird species than they think, but do we really know what a bird “species” is? This open access book takes up several fascinating aspects of bird life to elucidate this basic concept in biology. From genetic and physiological basics to the phenomena of bird song and bird migration, it analyzes various interactions of birds – with their environment and other birds. Lastly, it shows imminent threats to birds in the Anthropocene, the era of global human impact. Although it seemed to be easy to define bird species, the advent of modern methods has challenged species definition and led to a multidisciplinary approach to classifying birds. One outstanding new toolbox comes with the more and more reasonably priced acquisition of whole-genome sequences that allow causative analyses of how bird species diversify. Speciation has reached a final stage when daughter species are reproductively isolated, but this stage is not easily detectable from the phenotype we observe. Culturally transmitted traits such as bird song seem to speed up speciation processes, while another behavioral trait, migration, helps birds to find food resources, and also coincides with higher chances of reaching new, inhabitable areas. In general, distribution is a major key to understanding speciation in birds. Examples of ecological speciation can be found in birds, and the constant interaction of birds with their biotic environment also contributes to evolutionary changes. In the Anthropocene, birds are confronted with rapid changes that are highly threatening for some species. Climate change forces birds to move their ranges, but may also disrupt well-established interactions between climate, vegetation, and food sources. This book brings together various disciplines involved in observing bird species come into existence, modify, and vanish. It is a rich resource for bird enthusiasts who want to understand various processes at the cutting edge of current research in more detail. At the same time it offers students the opportunity to see primarily unconnected, but booming big-data approaches such as genomics and biogeography meet in a topic of broad interest. Lastly, the book enables conservationists to better understand the uncertainties surrounding “species” as entities of protection.
Book Synopsis Overview of mitigation measures to reduce the incidental catch of vulnerable species in fisheries by : Sacchi, J.
Download or read book Overview of mitigation measures to reduce the incidental catch of vulnerable species in fisheries written by Sacchi, J. and published by Food & Agriculture Org.. This book was released on 2021-06-23 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Potentially harmful contact between fisheries and marine vulnerable species represents a global conservation issue and efforts to mitigate the negative repercussions of these interactions belong in strategies for ensuring the sustainability of fisheries. This literature review offers a survey of mitigation measures and techniques that have been developed and tested around the world, aiming to address both the incidental catch of highly mobile species – specifically, cetaceans, seabirds, sharks and rays, and sea turtles – and depredation caused by dolphins. Based on research detailed in over 300 documents, including peer-reviewed publications, reports from international organizations and papers available on the internet, most of the mitigation techniques illustrated are still under development, with only a few already adopted through legislation. The selected mitigation measures are grouped by main types of fishing gear – gillnets and trammel nets, longlines and lines, trawls, purse seines, traps and pots – and further subdivided according to which of the four main groups of vulnerable species – cetaceans, seabirds, sharks and rays, or sea turtles – they are designed to protect. Preventive and curative approaches covering both technical measures (gear modifications, strategies, as well as acoustic, visual, magnetic and chemosensory deterrents) and management measures are described.
Book Synopsis A Handbook of Global Freshwater Invasive Species by : Robert A. Francis
Download or read book A Handbook of Global Freshwater Invasive Species written by Robert A. Francis and published by Routledge. This book was released on 2017-08-11 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasive non-native species are a major threat to global biodiversity. Often introduced accidentally through international travel or trade, they invade and colonize new habitats, often with devastating consequences for the local flora and fauna. Their environmental impacts can range from damage to resource production (e.g. agriculture and forestry) and infrastructure (e.g. buildings, road and water supply), to human health. They consequently can have major economic impacts. It is a priority to prevent their introduction and spread, as well as to control them. Freshwater ecosystems are particularly at risk from invasions and are landscape corridors that facilitate the spread of invasives. This book reviews the current state of knowledge of the most notable global invasive freshwater species or groups, based on their severity of economic impact, geographic distribution outside of their native range, extent of research, and recognition of the ecological severity of the impact of the species by the IUCN. As well as some of the very well-known species, the book also covers some invasives that are emerging as serious threats. Examples covered include a range of aquatic and riparian plants, insects, molluscs, crustacea, fish, amphibians, reptiles and mammals, as well as some major pathogens of aquatic organisms. The book also includes overview chapters synthesizing the ecological impact of invasive species in fresh water and summarizing practical implications for the management of rivers and other freshwater habitats.
Author :United States. National Marine Fisheries Service. Office of Protected Resources Publisher : ISBN 13 : Total Pages :325 pages Book Rating :4.:/5 (77 download)
Book Synopsis Recovery plan for the Steller sea lion by : United States. National Marine Fisheries Service. Office of Protected Resources
Download or read book Recovery plan for the Steller sea lion written by United States. National Marine Fisheries Service. Office of Protected Resources and published by . This book was released on 2008 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eutrophication: causes, consequences and control by : Abid A. Ansari
Download or read book Eutrophication: causes, consequences and control written by Abid A. Ansari and published by Springer Science & Business Media. This book was released on 2010-10-17 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eutrophication continues to be a major global challenge to water quality scientists. The global demand on water resources due to population increases, economic development, and emerging energy development schemes has created new environmental challenges to global sustainability. Eutrophication, causes, consequences, and control provides a current account of many important aspects of the processes of natural and accelerated eutrophication in major aquatic ecosystems around the world. The connections between accelerated eutrophication and climate change, chemical contamination of surface waters, and major environmental and ecological impacts on aquatic ecosystems are discussed. Water quality changes typical of eutrophication events in major climate zones including temperate, tropical, subtropical, and arid regions are included along with current approaches to treat and control increased eutrophication around the world. The book provides many useful new insights to address the challenges of global increases in eutrophication and the increasing threats to biodiversity and water quality.
Book Synopsis Global Invader by : Sylvia Behrens Yamada
Download or read book Global Invader written by Sylvia Behrens Yamada and published by . This book was released on 2001 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Writing to educate those concerned with sea life in the Pacific Northwest, Yamada (zoology, Oregon State U., Corvallis) traces the generally devastating impact of the invasive European green crab with reference to research carried out in New England, California, Oregon, South Africa, Australia, and Tasmania. A full description of the biology and life history of the European green crab is provided, along with photos, glossary, list of references, and descriptive table of Pacific Northwest crabs. Annotation copyrighted by Book News, Inc., Portland, OR.
Book Synopsis Handbook on Marine Environment Protection by : Markus Salomon
Download or read book Handbook on Marine Environment Protection written by Markus Salomon and published by Springer. This book was released on 2018-01-31 with total page 1001 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is the first of its kind to provide a clear, accessible, and comprehensive introduction to the most important scientific and management topics in marine environmental protection. Leading experts discuss the latest perspectives and best practices in the field with a particular focus on the functioning of marine ecosystems, natural processes, and anthropogenic pressures. The book familiarizes readers with the intricacies and challenges of managing coasts and oceans more sustainably, and guides them through the maze of concepts and strategies, laws and policies, and the various actors that define our ability to manage marine activities. Providing valuable thematic insights into marine management to inspire thoughtful application and further study, it is essential reading for marine environmental scientists, policy-makers, lawyers, practitioners and anyone interested in the field.
Download or read book Isoscapes written by Jason B. West and published by Springer Science & Business Media. This book was released on 2009-11-25 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stable isotope ratio variation in natural systems reflects the dynamics of Earth systems processes and imparts isotope labels to Earth materials. Carbon isotope ratios of atmospheric CO2 record exchange of carbon between the biosphere and the atmosphere; the incredible journeys of migrating monarchs is documented by hydrogen isotopes in their wings; and water carries an isotopic record of its source and history as it traverses the atmosphere and land surface. Through these and many other examples, improved understanding of spatio-temporal isotopic variation in Earth systems is leading to innovative new approaches to scientific problem-solving. This volume provides a comprehensive overview of the theory, methods, and applications that are enabling new disciplinary and cross-disciplinary advances through the study of "isoscapes": isotopic landscapes. "This impressive new volume shows scientists deciphering and using the natural isotope landscapes that subtly adorn our spaceship Earth.", Brian Fry, Coastal Ecology Institute, Louisiana State University, USA "An excellent timely must read and must-have reference book for anybody interested or engaged in applying stable isotope signatures to questions in e.g. Anthropology, Biogeochemistry, Ecology, or Forensic Science regarding chronological and spatial movement, changes, or distribution relating to animals, humans, plants, or water.", Wolfram Meier-Augenstein, Centre for Anatomy & Human Identification, University of Dundee, UK "Natural resources are being affected by global change, but exactly where, how, and at what pace? Isoscapes provide new and remarkably precise answers.", John Hayes, Woods Hole Oceanographic Institution, USA "This exciting volume is shaping a new landscape in environmental sciences that is utilizing the remarkable advances in isotope research to enhance and extend the capabilities of the field.", Dan Yakir, Weizmann Institute of Science, Israel
Book Synopsis Electric and Hybrid Cars by : Curtis D. Anderson
Download or read book Electric and Hybrid Cars written by Curtis D. Anderson and published by McFarland. This book was released on 2010-03-30 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This illustrated history chronicles electric and hybrid cars from the late 19th century to today's fuel cell and plug-in automobiles. It describes the politics, technology, marketing strategies, and environmental issues that have impacted electric and hybrid cars' research and development. The important marketing shift from a "woman's car" to "going green" is discussed. Milestone projects and technologies such as early batteries, hydrogen and bio-mass fuel cells, the upsurge of hybrid vehicles, and the various regulations and market forces that have shaped the industry are also covered.
Author :National Inquiry into Missing and Murdered Indigenous Women and Girls Publisher : ISBN 13 :9780660292755 Total Pages : pages Book Rating :4.2/5 (927 download)
Book Synopsis Reclaiming Power and Place by : National Inquiry into Missing and Murdered Indigenous Women and Girls
Download or read book Reclaiming Power and Place written by National Inquiry into Missing and Murdered Indigenous Women and Girls and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
