Download or read book Contaminants of Emerging Concern in Caspian Tern Compared to Herring Gull Eggs from Michigan Colonies in the Great Lakes of North America written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contaminants in Herring Gull Eggs from the Great Lakes written by C. A. Bishop and published by . This book was released on 1997 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 12-page fact sheet which describes changes in the concentration of four selected organochlorine compounds found in herring gull eggs between 1971 and 1995. It also describes some of the biological effects associated with these chemicals which have been observed in both gerring gulls and other fish-eating waterbirds living on the Great Lakes. This fact sheet also explains the reasons for this ongoing monitoring program and how the results reflect the ongoing efforts being made to restore the Great Lakes ecosystem to a healthy state.
Download or read book Caspian Terns on the Great Lakes written by Peter J. Ewins and published by Environment Canada, Canadian Wildlife Service. This book was released on 1994 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Great Lakes of North America are one of the most heavily contaminated freshwater ecosystems in the world, yet they support at least one-third of North America's breeding Caspian tern population. To assess the health of this breeding population in relation to organochlorine contaminant (OC) levels, a study was conducted of 10 colonies (6,800 nests) throughout its Great Lakes range in 1991. The study considered residues in relation to reproductive output, diet, and population trends at individual colonies and examined the suitability of this species as a sensitive indicator of the toxic effects of anthropogenic chemicals.
Download or read book Methodologies for Community Health Assessment in Areas of Concern written by and published by . This book was released on 2001 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Atlas of Contaminants in Eggs of Fish eating Colonial Birds of the Great Lakes 1989 1992 written by and published by . This book was released on 1994 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trends in Levels and Effects of Persistent Toxic Substances in the Great Lakes written by Michael Gilbertson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: `Are the Great Lakes getting better or worse?' This is the question that the public, scientists and managers are asking the International Joint Commission after a quarter-century of cooperative action by the United States and Canadian governments to clean up the Great Lakes. This volume contains papers from the workshop on Environmental Results, hosted in Windsor, Ontario, by the Great Lakes Science Advisory Board of the International Joint Commission, on September 12 and 13, 1996. The Great Lakes have been through almost a century of severe pollution from the manufacture, use and disposal of chemicals. In the 1960s wildlife biologists started to investigate the outbreaks of reproductive failure in fish-eating birds and ranch mink and to link these to exposure to organochlorine compounds. Human health researchers in the 1980s and 1990s linked growth retardation, behavioral anomalies and deficits in cognitive development with maternal consumption of Great Lakes fish prior to pregnancy. The Great Lakes became the laboratory where the theory of endocrine disruptors was first formulated. Now a group of Great Lakes scientists, hosted by the International Joint Commission, has compiled the story of the trends in the concentrations and effects of persistent toxic substances on wildlife and humans. The technical papers review the suitability of various organisms as indicators, and present the results of long-term monitoring of the concentrations and of the incidence of effects. The evidence shows that there was an enormous improvement in the late 1970s, but that in the late 1990s there are still concentrations of some persistent toxic substances that have stubbornly remained at levels that continue to cause toxicological effects.
Download or read book Contaminants in Herring Gull Eggs from the Great Lakes written by Canada. Environment Canada and published by . This book was released on 1990 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Atlas of Breeding Birds of Michigan written by Richard Brewer and published by . This book was released on 1991 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume is based on a five-year survey conducted by the Michigan Breeding Bird Atlas project and the work of more than 1,000 volunteers. Information provided is drawn from a massive, 500,000-record database, which has become a foundation for monitoring bird populations documenting changes, protecting habitats, and preserving Michigan bird species.
Download or read book An Atlas of Contaminants in Eggs of Fish eating Colonial Birds of the Great Lakes 1989 1992 Accounts by location written by Karen E. Pettit and published by . This book was released on 1994 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: "During 1989-1992, Canadian wildlife Service (Ontario) collected a total of 1495 eggs from fish-eating colonial birds from 50 colonies throughout the Great Lakes to measure the levels of 86 chlorinated hydrocarbon compounds, and the lipid concentrations present. These data were generated as part of a monitoring program started in 1970 to understand the temporal and spatial trends in environmental contaminant levels in biota of the Great Lakes"--Executive summary.
Download or read book An Atlas of Contaminants in Eggs of Fish eating Colonial Birds of the Great Lakes 1970 1988 Accounts by species and locations written by Christine Annette Bishop and published by Burlington, Ont. : Canadian Wildlife Service. This book was released on 1992 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Atlas of Contaminants in Eggs of Fish eating Colonial Birds of the Great Lakes 1970 1988 Accounts by chemical written by and published by . This book was released on 1992 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxic Chemicals in the Great Lakes and Associated Effects Effects written by and published by . This book was released on 1991 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Biogeography of the Island Region of Western Lake Erie written by Jerry F. Downhower and published by . This book was released on 1988 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxic Chemicals in the Great Lakes and Associated Effects Effects written by Canada. Environment Canada and published by . This book was released on 1991 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seabird Status and Conservation written by J. P. Croxall and published by International. This book was released on 1991 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published as a supplement to ICBP/BirdLife's Status and Conservation of the World's Seabirds, this book can be used independently. Chapter by chapter, regional and national experts provide status and site information on the seabirds of Canada, Baja California, Brazil and Uruguay, Sri Lanka, Malaysia, Indonesia, the Bering Sea, Sea of Okhotsk and Sea of Japan, and Antarctica. "This excellent volume treats areas which have received little attention in the past" - Ibis.
Download or read book Toxic Chemicals in the Great Lakes and Associated Effects written by Canada. Environment Canada and published by . This book was released on 1991 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes what is currently known about the levels and the effects of toxic chemicals in the water, sediments, fish, wildlife and human residents of the Great Lakes basin. A list of critical pollutants is included. Particular attention is paid to the effects of toxic contaminants on double-crested cormorants, bald eagles, herring gulls, common terns, mink, common snapping turtles, and lake trout.
Download or read book An Atlas of Contaminants in Eggs of Fish eating Colonial Birds of the Great Lakes 1993 1997 written by C. Pekarik and published by Downsview, Ont. : Canadian Wildlife Service. This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Les données de 1993-1997 sont résumées en deux volumes. Le volume 1 contient les données sur les contaminants pour les quatre espèces au complet, résumées par lieu, et les données sur les BPC non-coplanaires pour les oeufs de goélands argentés provenant de 14 colonies à surveillance annuelle. Le volume II renferme les données sur les contaminants de toutes les quatre espèces, résumés par composés. Les deux volumes contiennent les emplacements des échantillons ..." -- p. ii du vol. 1.
