Download or read book Breeding and Foraging Ecology of Caspian Terns Sterna Caspia in the Mid Columbia River written by Michelle Antolos and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: I investigated Caspian terns (Sterna caspia) breeding at colonies on the Columbia Plateau (southeastern Washington and northeastern Oregon), with emphasis on the breeding and foraging ecology of Caspian terns nesting at colonies in the mid-Columbia River. I focused research at colonies where Caspian terns foraged on juvenile salmonids (Oncorhynchus spp.) because of potential impacts to stocks listed under the U.S. Endangered Species Act. Caspian tern colony size on the Columbia Plateau ranged from tens of breeding pairs to nearly 700 pairs at Crescent Island in the mid-Columbia River; total population size in the study area was about 1,000 pairs and appeared to be stable. The size and number of Caspian tern colonies in the Columbia Plateau region are likely constrained by the availability of suitable nesting habitat near abundant prey, a resource that appears limited within the study area. Productivity of Caspian terns was not affected by nest density at Crescent Island, information that may be helpful for resource managers deciding minimum area requirements for breeding Caspian terns at managed colony sites. At colonies on the mid- Columbia River, the majority of Caspian tern prey items consisted of juvenile salmonids. I estimated that Caspian terns nesting at Crescent Island in the mid- Columbia River consumed 382,000-547,000 and 533,000-825,000 juvenile salmonids during the breeding season in 2000 and 2001, respectively. Total salmonid predation by Crescent Island Caspian terns was less than that reported for some other predators in the Columbia River that have been managed to reduce predation rates on juvenile salmonids. The results of this research will be used by state, federal, and tribal resource managers to decide whether Caspian tern management is warranted at Crescent Island.
Download or read book Caspian Tern Management to Reduce Predation of Juvenile Salmonids in the Columbia River Estuary written by U.S. Fish and Wildlife Service and published by . This book was released on 2005 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology of Breeding Caspian Terns Sterna Caspia in Elkhorn Slough California written by Jennifer Lee Parkin and published by . This book was released on 1998 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Northwest Science written by and published by . This book was released on 2004 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pacific Seabirds written by Pacific Seabird Group and published by . This book was released on 2004 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology of Marine Birds written by E. A. Schreiber and published by CRC Press. This book was released on 2001-08-16 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Marine Birds provides the only complete summary of information about marine birds ever published. It analyzes their breeding biology, ecology, taxonomy, evolution, fossil history, physiology, energetics, and conservation. The book covers four orders of marine birds in detail and includes two summary chapters that address the biology of shorebirds and wading birds and their lives in the marine environment. Summary tables give detailed information on various aspects of their life histories, breeding biology, physiology and energetics, and demography. It provides a guide to ornithologists and students for research projects.
Download or read book Alaska Seabird Information Series ASIS written by and published by . This book was released on 2006 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Compilation of seabird species accounts for all seabirds breeding in Alaska and five important nonbreeders. Conservation status, life history, distribution, population size and trends, conservation concerns, and recommended management actions are included in the accounts"--Leaf i.
Download or read book Rocky Mountain Birds written by Paul Johnsgard and published by Lulu.com. This book was released on 2011-11-04 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Part I outlines the habitats, ecology, and bird geography of the Rocky Mountains north of the New Mexico-Colorado border, including recent changes in the ecology and avifauna of the region. It provides detailed lists of major birding locations and guidance about where to search for specific Rocky Mountain birds. Part 2 considers all 328 regional species individually, with information on their status, habitats and ecology, suggested viewing locations, and population."--Back cover
Download or read book The Common Tern written by Joanna Burger and published by iUniverse. This book was released on 1991 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than twenty years the authors studied the complex breeding and social behavior of colonies of terns. A significant dynamic of their social behavior is their “mobbing” behavior when they aggressively defend their nests against predators and will attack intruders, including human beings. Analysis of this and other behaviors as they affect breeding and population provide fascinating insights in the study of birds.
Download or read book Birds of Aruba Curacao and Bonaire written by Bart de Boer and published by Helm. This book was released on 2020-03-09 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Netherlands Antilles comprises three main islands off the coast ofnorthern Venezuela. These are Aruba, Curacao and Bonaire . They aremajor tourist destinations, especially popular with divers, and alsoattract many visitors from Holland and elsewhere. The colour plates are based on the bestselling Birds of Northern South America, but many new images have been painted specially for this book. The authoritative text highlights the key features needed to identify each species in the field, and the plates illustrate every distinct plumage and race. This will be the first evercomprehensive field guide dedicated to the birds of the region.
Download or read book Marine Birds of the Southeastern United States and Gulf of Mexico Charadrillformes written by Roger B. Clapp and published by . This book was released on 1982 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phenology An Integrative Environmental Science written by Mark D. Schwartz and published by Springer Science & Business Media. This book was released on 2011-04-28 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phenology is the study of plant and animal life cycle events, which are triggered by environmental changes, especially temperature. Wide ranges of phenomena are included, from first openings of leaf and flower buds, to insect hatchings and return of birds. Each one gives a ready measure of the environment as viewed by the associated organism. Thus, phenological events are ideal indicators of the impact of local and global changes in weather and climate on the earth's biosphere. Assessing our changing world is a complex task that requires close cooperation from experts in biology, climatology, ecology, geography, oceanography, remote sensing and other areas. This book is a synthesis of current phenological knowledge, designed as a primer on the field for global change and general scientists, students and interested members of the public. With contributions from a diverse group of over fifty phenological experts, covering data collection, current research, methods and applications, it demonstrates the accomplishments and potential of phenology as an integrative environmental science.
Download or read book Ecological Assessment of Selenium in the Aquatic Environment written by Peter M. Chapman and published by CRC Press. This book was released on 2010-05-06 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the work and contributions of 46 scientists, managers, and policymakers, Ecological Assessment of Selenium in the Aquatic Environment documents the state of the science and explores how to use this information when assessing and managing the environmental effects of Se. A focused discussion on the fate and effects of Se in aquatic ecosyste
Download or read book Animal Biomarkers as Pollution Indicators written by David B. Peakall and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecotoxicology is a relatively new scientific discipline. Indeed, it might be argued that it is only during the last 5-10 years that it has come to merit being regarded as a true science, rather than a collection of procedures for protecting the environment through management and monitoring of pollutant discharges into the environment. The term 'ecotoxicology' was first coined in the late sixties by Prof. Truhaut, a toxicologist who had the vision to recognize the importance of investigating the fate and effects of chemicals in ecosystems. At that time, ecotoxicology was considered a sub-discipline of medical toxicology. Subsequently, several attempts have been made to portray ecotoxicology in a more realistic light. Notably, both F. Moriarty (1988) and F. Ramade (1987) emphasized in their books the broad basis of ecotoxicology, encompassing chemical and radiation effects on all components of ecosystems. In doing so, they and others have shifted concern from direct chemical toxicity to man, to the far more subtle effects that pollutant chemicals exert on natural biota. Such effects potentially threaten the existence of all life on Earth. Although I have identified the sixties as the era when ecotoxicology was first conceived as a coherent subject area, it is important to acknowledge that studies that would now be regarded as ecotoxicological are much older. Wherever people's ingenuity has led them to change the face of nature significantly, it has not escaped them that a number of biological con sequences, often unfavourable, ensue.
Download or read book Birds in Boreal Canada written by Anthony J. Erskine and published by Ottawa: Fisheries and Environment Canada. This book was released on 1977 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: An 8 year study to assemble baseline data on the compostion and density of the bird communities.
Download or read book Mangrove Ecosystems of Asia written by I. Faridah-Hanum and published by Springer Science & Business Media. This book was released on 2013-11-01 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides an up-to-date account of mangrove forests from Asia, together with restoration techniques, and the management requirements of these ecosystems to ensure their sustainability and conservation. All aspects of mangroves and their conservation are critically re-examined. The book is divided into three sections presenting the distribution and status of mangrove ecosystems in Asia, the challenges they are facing, their issues and opportunities, and the management strategies for their conservation.
Download or read book Marine Birds of the Eastern United States and the Bay of Fundy written by Ian C. T. Nisbet and published by . This book was released on 2013 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph reviews the distribution and numbers of 83 marine species (31 breeding species) that occur regularly along the east coast of the US, in the Bay of Fundy, or in waters of the continental shelf. It assesses trends in numbers since 1970, threats, and research and conservation needs. It compiles data from many published and unpublished sources and has a bibliography of more than 600 entries, which should make it an invaluable reference work. Pelagic birds.
