Download or read book Handbook for Restoring Tidal Wetlands written by Joy B. Zedler and published by CRC Press. This book was released on 2000-08-30 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Efforts to direct the recovery of damaged sites and landscape date back as far as the 1930s. If we fully understood the conditions and controlling variables at restoration sites, we would be better equipped to predict the outcomes of restoration efforts. If there were no constraints, we could merely plant the restoration site and walk away. However

Download or read book Environmental Pollutants and Eggshell Thickness written by Harry M. Ohlendorf and published by . This book was released on 1979 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1972 and 1973 we collected 1,339 clutches of eggs of anhingas (Anhinga anhinga) and 17 species of waders (herons, egrets, bitterns, ibises, and storks). We analyzed the eggs for organochlorine residues and compared shell thickness of these eggs and others collected since 1946 (and now in museum collections) with shell thickness of eggs collected before the widespread use of organochlorine pesticides. Eggshells were significantly thinner in one or more regions for the post-1946 samples of anhinga, great blue heron, black-crowned night heron, and wood stork. We detected no significant change in the other species.

Download or read book Special Scientific Report wildlife written by and published by . This book was released on 1979 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Technical Literature on the American Woodcock 1927 1978 written by Thomas J. Dwyer and published by . This book was released on 1979 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Laws of the United States Relating to the Improvement of Rivers and Harbors from August 11 1790 to March 4 1913 written by United States and published by . This book was released on 1913 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Survey Water supply Paper written by and published by . This book was released on 1964 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of Tide Stations written by and published by . This book was released on 1984 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tracings: 16.20.

Download or read book Second Summary of Data on Chemical Concentrations in Sediments from the National Status and Trends Program written by and published by . This book was released on 1991 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Laws of the United States Relating to the Improvement of Rivers and Harbors written by United States and published by . This book was released on 1907 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Laws of the United States Relating to the Improvement of Rivers and Harbors from August 11 1790 to March 4 1907 1890 1907 written by United States and published by . This book was released on 1907 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Laws of the United States Relating to the Improvement of Rivers and Harbors from August 11 1790 to March 4 1907 1790 1889 written by United States and published by . This book was released on 1907 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Coastal Environmental Quality in the United States 1990 written by Thomas P. O'Connor and published by . This book was released on 1990 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ecology of Barataria Basin Louisiana written by William H. Conner and published by . This book was released on 1987 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Indicators written by Daniel H. McKenzie and published by Springer. This book was released on 2012-12-06 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today environmental problems of unprecedented magnitude confront planet earth. The sobering fact is that a whole range of human activities is affecting our global environment as profoundly as the billions of years of evolution that preceded our tenure on Earth. The pressure on vital natural resources in the developing world and elsewhere is intense, and the destruction of tropical forests, wildlife habitat, and other irreplaceable resources, is alarming. Climate change, ozone depletion, loss of genetic diversity, and marine pollution are critical global environmental concerns. Their cumulative impact threatens to destroy the planet's natural resources. The need to address this situation is urgent. More than at any previous moment in history, nature and ecological systems are in human hands, dependent on human efforts. The earth is an interconnected and interdependent global ecosystem, and change in one part of the system often causes unexpected change in other parts. Atmospheric, oceanic, wetland, terrestrial and other ecological systems have a finite capacity to absorb the environmental degradation caused by human behavior. The need for an environmentally sound, sustainable economy to ease this degradation is evident and urgent. Policies designed to stimulate economic development by foregoing pollution controls both destroy the long-term economy and ravage the environment. Over the years, we have sometimes drawn artificial distinctions between the health of individuals and the health of ecosystems. But in the real world, those distinctions do not exist.

Download or read book Report written by United States. Army. Office of the Chief of Engineers and published by . This book was released on 1923 with total page 2162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Chief of Engineers U S Army written by United States. Army. Corps of Engineers and published by . This book was released on 1923 with total page 2162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes the Report of the Mississippi River Commission, 1881-19 .

Download or read book Annual Report of the Chief of Engineers to the Secretary of War for the Year written by United States. Army. Corps of Engineers and published by . This book was released on 1928 with total page 2136 pages. Available in PDF, EPUB and Kindle. Book excerpt: