Download or read book Parasitic Diseases of Wild Birds written by Carter T. Atkinson and published by John Wiley & Sons. This book was released on 2009-03-20 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parasitic Diseases of Wild Birds provides thorough coverage of major parasite groups affecting wild bird species. Broken into four sections covering protozoa, helminths, leeches, and arthropod parasites, this volume provides reviews of the history, disease, epizootiology, pathology, and population impacts caused by parasitic disease. Taking a unique approach that focuses on the effects of the parasites on the host, Parasitic Diseases of Wild Birds fills a unique niche in animal health literature.

Download or read book The Progressive Fish culturist written by and published by . This book was released on 1994 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Progressive Fish Culturist written by U.S. Fish and Wildlife Service and published by . This book was released on 1995 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trophic Relationships in Inland Waters written by P. Biro and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Symposium on Trophic Relationships in Inland Waters, held from 1st-4th September 1987, at the Balaton Limnological Research Institute of the Hungarian Academy of Sciences, Tihany (Hungary), was intended to give an insight into current research on limnology of inland waters. The meeting was organized on the occasion of the 60th anniversary of the Institute in order to promote the exchange of ideas and discussion of new results. Papers presented during the Symposium dealt with four main topics: (1) Interactions of inorganic nutrients, primary producers and bacteria, (2) Interactions between primary and secondary producers, (3) Trophic relationships between plankton and fish, (4) Studies on complex trophic systems. Participants from 18 countries presented 40 oral lectures and 15 posters, that reviewed the structure and functioning of inland water ecosystems from different aspects. Since in such functioning nutrients are main forcing factors, the pathways of nutrients., as well as trophic connections, are widely studied nowadays. The IX papers of these proceedings thus present a series of different approaches to the main results of current limnological research in this very important field. The structure of these proceedings was somewhat altered when papers were ranked into three main groups: (1) Long-term changes, (2) Annual and seasonal cycles and (3) Short-term changes and pilot scale operations. The sequence of papers within these groups follows the four main subjects discussed during the Symposium.

Download or read book Aquatic Birds in the Trophic Web of Lakes written by Joseph J. Kerekes and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Birds are an integral part of most freshwater ecosystems (lakes, rivers, wetlands) but their role in the trophic dynamics of these water bodies has often been overlooked. As a conspicuous part of the biota of water bodies, aquatic birds are indicators of their trophic state both in terms of species composition (quality) as well as occupancy and breeding (quantity). Birds may also influence the trophic state of a water body by importing nutrients (.e.g. resident or migrating birds feeding on adjacent watersheds or the sea). Because of anthropogenic activities, predation or their mobility, birds may not utilize otherwise suitable aquatic habitat. These factors complicate the relationship between aquatic bird production and the trophic status of habitats. As a consequence, the role of aquatic birds in freshwater ecosystems has usually been ignored. This volume contains a wide range of papers selected from those presented at the symposium and reviewed.

Download or read book South Bay Salt Pond Restoration Project written by and published by . This book was released on 2007 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mammals and Birds as Bioindicators of Trace Element Contaminations in Terrestrial Environments written by Elżbieta Kalisińska and published by Springer. This book was released on 2019-03-01 with total page 707 pages. Available in PDF, EPUB and Kindle. Book excerpt: The population explosion that began in the 1960s has been accompanied by a decrease in the quality of the natural environment, e.g. pollution of the air, water and soil with essential and toxic trace elements. Numerous poisonings of people and animals with highly toxic anthropogenic Hg and Cd in the 20th century prompted the creation of the abiotic environment, mainly in developed countries. However, the system is insufficient for long-term exposure to low concentrations of various substances that are mainly ingested through food and water. This problem could be addressed by the monitoring of sentinels – organisms that accumulate trace elements and as such reflect the rate and degree of environmental pollution. Usually these are long-lived vertebrates – herbivorous, omnivorous and carnivorous birds and mammals, especially game species. This book describes the responses of the sentinels most commonly used in ecotoxicological studies to 17 trace elements.

Download or read book Feasibility Study for Navigation Improvements Humboldt Harbor and Bay Deepening Channels Humboldt County written by and published by . This book was released on 1995 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Library of Congress Subject Headings written by Library of Congress and published by . This book was released on 2013 with total page 1624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Final Environmental Impact Report environmental Impact Statement written by and published by . This book was released on 2002 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Imperial Irrigation District Water Conservation and Transfer Project and Draft Habitat Conservation Plan written by and published by . This book was released on 2002 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Final Environmental Impact Report Environmental Impact Statement Imperial Irrigation District Water Conservation and Transfer Project written by and published by . This book was released on 2002 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Remediation of the Moab Uranium Mill Tailings Grand and San Juan Counties Utah written by and published by . This book was released on 2005 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Anadromous Fish Agreements and Habitat Conservation Plans for Wells Rocky Reach and Rock Island Hydroelectric Projects written by and published by . This book was released on 2002 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Birds of Africa Volume I written by and published by Bloomsbury Publishing. This book was released on 2020-06-25 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Universally recognised as by far the most authoritative work ever published on the subject, The Birds of Africa is a superb multi-contributor reference work, with encyclopaedic species texts, stunning paintings of all species and numerous subspecies, hundreds of informative line drawings, detailed range maps, and extensive bibliographies. Each volume contains an Introduction that brings the reader up to date with the latest developments in African ornithology, including the evolution and biogeography of African birds. Diagnoses of the families and genera, often with superspecies maps, are followed by the comprehensive species accounts themselves. These include descriptions of range and status, field characters, voice, general habits, food, and breeding habits. Full bibliographies, acoustic references, and indexes complete this scholarly work of reference. This first volume in the series deals comprehensively with Ostrich, albatrosses, petrels and shearwaters, storm-petrels, penguins, divers, grebes, tropicbirds, boobies, cormorants, darter, pelicans, frigatebirds, herons, Hamerkop, storks, Shoebill, ibises and spoonbills, flamingos, swans, geese and ducks, and diurnal birds of prey. The editors and artists have worked closely with other authors - all acknowledged experts in their field - to produce a superb reference in which comprehensive texts on every species are complemented by accurate and detailed paintings and drawings of the birds themselves.

Download or read book Mercury study report to Congress Vol 6 written by and published by DIANE Publishing. This book was released on with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Parasites of Homo sapiens written by Richard Ashford and published by CRC Press. This book was released on 2003-02-06 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Homo sapiens rank among the most parasitized of all animals. In part this is because we know so much about all aspects of the biology of our species, but in addition, our varied habitat and diet and our global distribution exposes us to more infections than any other species. Whereas some familiar parasitic infections are responsible for much human