Author: Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 310
Book Description
Spada Lake Biological Assessment and Sport Fishery Evaluation
Author: Bibliography of Agriculture with Subject Index
Author: Selected Water Resources Abstracts
Author: World Atlas of Seagrasses
Author: Frederick T. ShortPublisher: Univ of California Press
ISBN: 9780520240476
Category : Nature
Languages : en
Pages : 336
Book Description
Seagrasses are a vital and widespread but often overlooked coastal marine habitat. This volume provides a global survey of their distribution and conservation status.
Selected Water Resources Abstracts
Author: Compensating for Wetland Losses Under the Clean Water Act
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309074320
Category : Political Science
Languages : en
Pages : 349
Book Description
Recognizing the importance of wetland protection, the Bush administration in 1988 endorsed the goal of "no net loss" of wetlands. Specifically, it directed that filling of wetlands should be avoided, and minimized when it cannot be avoided. When filling is permitted, compensatory mitigation must be undertaken; that is, wetlands must be restored, created, enhanced, and, in exceptional cases, preserved, to replace the permitted loss of wetland area and function, such as water quality improvement within the watershed. After more than a dozen years, the national commitment to "no net loss" of wetlands has been evaluated. This new book explores the adequacy of science and technology for replacing wetland function and the effectiveness of the federal program of compensatory mitigation in accomplishing the nation's goal of clean water. It examines the regulatory framework for permitting wetland filling and requiring mitigation, compares the mitigation institutions that are in use, and addresses the problems that agencies face in ensuring sustainability of mitigated wetlands over the long term. Gleaning lessons from the mixed results of mitigation efforts to date, the book offers 10 practical guidelines for establishing and monitoring mitigated wetlands. It also recommends that federal, state, and local agencies undertake specific institutional reforms. This book will be important to anyone seeking a comprehensive understanding of the "no net loss" issue: policy makers, regulators, environmental scientists, educators, and wetland advocates.
Ecology Abstracts
Author: Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 906
Book Description
Coverage: 1982- current; updated: monthly. This database covers current ecology research across a wide range of disciplines, reflecting recent advances in light of growing evidence regarding global environmental change and destruction. Major ares of subject coverage include: Algae/lichens, Animals, Annelids, Aquatic ecosystems, Arachnids, Arid zones, Birds, Brackish water, Bryophytes/pteridophytes, Coastal ecosystems, Conifers, Conservation, Control, Crustaceans, Ecosyst em studies, Fungi, Grasses, Grasslands, High altitude environments, Human ecology, Insects, Legumes, Mammals, Management, Microorganisms, Molluscs, Nematodes, Paleo-ecology, Plants, Pollution studies, Reptiles, River basins, Soil, TAiga/tundra, Terrestrial ecosystems, Vertebrates, Wetlands, Woodlands.
The Arctic in the Anthropocene
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309301866
Category : Science
Languages : en
Pages : 224
Book Description
Once ice-bound, difficult to access, and largely ignored by the rest of the world, the Arctic is now front and center in the midst of many important questions facing the world today. Our daily weather, what we eat, and coastal flooding are all interconnected with the future of the Arctic. The year 2012 was an astounding year for Arctic change. The summer sea ice volume smashed previous records, losing approximately 75 percent of its value since 1980 and half of its areal coverage. Multiple records were also broken when 97 percent of Greenland's surface experienced melt conditions in 2012, the largest melt extent in the satellite era. Receding ice caps in Arctic Canada are now exposing land surfaces that have been continuously ice covered for more than 40,000 years. What happens in the Arctic has far-reaching implications around the world. Loss of snow and ice exacerbates climate change and is the largest contributor to expected global sea level rise during the next century. Ten percent of the world's fish catches comes from Arctic and sub-Arctic waters. The U.S. Geological Survey estimated that up to 13 percent of the world's remaining oil reserves are in the Arctic. The geologic history of the Arctic may hold vital clues about massive volcanic eruptions and the consequent release of massive amount of coal fly ash that is thought to have caused mass extinctions in the distant past. How will these changes affect the rest of Earth? What research should we invest in to best understand this previously hidden land, manage impacts of change on Arctic communities, and cooperate with researchers from other nations? The Arctic in the Anthropocene reviews research questions previously identified by Arctic researchers, and then highlights the new questions that have emerged in the wake of and expectation of further rapid Arctic change, as well as new capabilities to address them. This report is meant to guide future directions in U.S. Arctic research so that research is targeted on critical scientific and societal questions and conducted as effectively as possible. The Arctic in the Anthropocene identifies both a disciplinary and a cross-cutting research strategy for the next 10 to 20 years, and evaluates infrastructure needs and collaboration opportunities. The climate, biology, and society in the Arctic are changing in rapid, complex, and interactive ways. Understanding the Arctic system has never been more critical; thus, Arctic research has never been more important. This report will be a resource for institutions, funders, policy makers, and students. Written in an engaging style, The Arctic in the Anthropocene paints a picture of one of the last unknown places on this planet, and communicates the excitement and importance of the discoveries and challenges that lie ahead.
Language Assessment
Author: H. Douglas BrownPublisher: Pearson Education ESL
ISBN: 9780134860220
Category : Language acquisition
Languages : en
Pages : 400
Book Description
Language Assessment: Principles and Classroom Practices is designed to offer a comprehensive survey of essential principles and tools for second language assessment. Its first and second editions have been successfully used in teacher-training courses, teacher certification curricula, and TESOL master of arts programs. As the third in a trilogy of teacher education textbooks, it is designed to follow H. Douglas Brown's other two books, Principles of Language Learning and Teaching (sixth edition, Pearson Education, 2014) and Teaching by Principles(fourth edition, Pearson Education, 2015). References to those two books are made throughout the current book. Language Assessment features uncomplicated prose and a systematic, spiraling organization. Concepts are introduced with practical examples, understandable explanations, and succinct references to supportive research. The research literature on language assessment can be quite complex and assume that readers have technical knowledge and experience in testing. By the end of Language Assessment, however, readers will have gained access to this not-so-frightening field. They will have a working knowledge of a number of useful, fundamental principles of assessment and will have applied those principles to practical classroom contexts. They will also have acquired a storehouse of useful tools for evaluating and designing practical, effective assessment techniques for their classrooms.
Invasive Species and Human Health
Author: Giuseppe MazzaPublisher: CABI
ISBN: 1786390981
Category : Nature
Languages : en
Pages : 208
Book Description
Invasive alien plants and animals are known for their disruption of ecosystems and threat to biodiversity. This book highlights their major impact on human health. This includes not only direct effects through contact with the species via bites, wounds and disease, but also indirect effects caused by changes induced in ecosystems by invasive species, such as more water hyacinth increasing mosquito levels and thereby the potential for malaria. Covering a wide range of case studies from different taxa (animals and plants), and giving an overview of the diverse impacts of invasive species on health in developed and developing countries, the book is a significant contribution that will help in prioritizing approaches to controlling invasive species and mitigating their health effects. It covers invasive plants, marine species, spiders and other arachnids, ticks and dust mites, insects, mosquitos and other diptera, freshwater species (invertebrates and fishes), amphibians and reptiles, birds and mammals. The broad spectrum of the analyzed case studies will ensure the appeal of the book to a wide public, including researchers of biological invasions, doctors, policy-makers and managers, and students of invasive species in ecology, animal and plant biology and public health medicine.