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Articles 901 - 930 of 1003

Full-Text Articles in Environmental Health and Protection

External Development: Turning Problems Into Opportunities, T. Destry Jarvis Sep 1986

External Development: Turning Problems Into Opportunities, T. Destry Jarvis

External Development Affecting the National Parks: Preserving "The Best Idea We Ever Had" (September 14-16)

9 pages.


The National Park Idea: Historical Misconceptions And Ecological Realities, Alfred Runte Sep 1986

The National Park Idea: Historical Misconceptions And Ecological Realities, Alfred Runte

External Development Affecting the National Parks: Preserving "The Best Idea We Ever Had" (September 14-16)

17 pages.

Contains references.


Panel: Perspectives On External Threats To The National Parks [Report Of The Subgroup Of The Park Protection Working Group], Stephen A. Gleason Sep 1986

Panel: Perspectives On External Threats To The National Parks [Report Of The Subgroup Of The Park Protection Working Group], Stephen A. Gleason

External Development Affecting the National Parks: Preserving "The Best Idea We Ever Had" (September 14-16)

11 pages.

Contains 1 attachment.


Restoring The Biological Integrity Of Everglades National Park, Estus D. Whitfield Sep 1986

Restoring The Biological Integrity Of Everglades National Park, Estus D. Whitfield

External Development Affecting the National Parks: Preserving "The Best Idea We Ever Had" (September 14-16)

29 pages.

Contains references.


Case Study: The Challenges Of The Greater Yellowstone, Bill Bryan Sep 1986

Case Study: The Challenges Of The Greater Yellowstone, Bill Bryan

External Development Affecting the National Parks: Preserving "The Best Idea We Ever Had" (September 14-16)

4 pages.


Legal Issues Associated With Protecting Park Resources: Air Quality And Related Values, Molly N. Ross Sep 1986

Legal Issues Associated With Protecting Park Resources: Air Quality And Related Values, Molly N. Ross

External Development Affecting the National Parks: Preserving "The Best Idea We Ever Had" (September 14-16)

109 pages.

Contains references.

Contains 5 attachments:

1) United States Department of the Interior Memorandum, September 20, 1985: Protection of National Park System Units from the Adverse Effects of Air Pollution.

2) Library of Congress Congressional Research Service Memorandum, November 19, 1985: Comments on Department of the Interior Memorandum of September 20, 1985 Entitled "Protection of National Park System Units from the Adverse Effects of Air Pollution."

3) United States Department of the Interior Memorandum, May 15, 1986: Legal Authority of the Secretary to Protect the Air Quality and Related Values of NPS Units from Adverse Impacts of Surface Coal …


Protecting National Park Resources: Wildlife, George Cameron Coggins Sep 1986

Protecting National Park Resources: Wildlife, George Cameron Coggins

External Development Affecting the National Parks: Preserving "The Best Idea We Ever Had" (September 14-16)

28 pages.

Contains references.


Agenda: External Development Affecting The National Parks: Preserving "The Best Idea We Ever Had", University Of Colorado Boulder. Natural Resources Law Center Sep 1986

Agenda: External Development Affecting The National Parks: Preserving "The Best Idea We Ever Had", University Of Colorado Boulder. Natural Resources Law Center

External Development Affecting the National Parks: Preserving "The Best Idea We Ever Had" (September 14-16)

Conference organizers and/or faculty included University of Colorado School of Law professors Lawrence J. MacDonnell and Daniel Magraw.

The conference will be held at the Aspen Lodge, adjacent to Rocky Mountain National Park near Estes Park, Colorado.

It was Wallace Stegner who called the national parks "the best idea we ever had." The continuing increases in usage attest to their popularity. National parks are created to preserve areas of special scenic and cultural value for enjoyment and use. Managing the parks in a manner that protects the important values and purposes for which they were created presents important and difficult …


Grazing And Management Of Saltland Shrubs, C V. Malcolm, J. E. Pol Jan 1986

Grazing And Management Of Saltland Shrubs, C V. Malcolm, J. E. Pol

Journal of the Department of Agriculture, Western Australia, Series 4

areas of bare saltland on farms need not be unproductive etesores. Many Western Australian farmers are now successfully growing salt-tolerant or halophytic shrubs such as bluebush (Maireana brevifolia), saltbushes (Atriplex spp.) and samphires (Halosarcia spp.) on these areas.

Department of agriculture trials and farmers' experience indicate that if saltland is planted with recommended shrubs, it can provide two months' valuable grazing for sheep during autumn and early winter, a time when paddock feed is scarce. Research by the Department has also identified a range of salt-tolerant shrubs suited to the various types of saltland.

Grazing trials to …


Biological Control Of Parkinsonia, W M. Woods Jan 1986

Biological Control Of Parkinsonia, W M. Woods

Journal of the Department of Agriculture, Western Australia, Series 4

One of the most troublesome weeds in northern Australia'a lastoral country is Parkinsonia aculeata, commonly called Parkinsonia, Jerusalem Thorn, Palo Verde or Retama. In 983 Western Australia, ueensland and the Northern Territory started a joint biological control programme against this perst by sending the author overseas to search for its natural predators in southern USA, Mexico and Central America. A few insects show promise and one, a bruchid beetle Mimosetes ulkei, is being tested under Quarantine in Queensland.


Quantification Of Indian Rights: Problems Of Proof, Harry R. Sachse Jun 1985

Quantification Of Indian Rights: Problems Of Proof, Harry R. Sachse

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

32 pages.


A Proposal To Fertilize The Overton Arm And Gregg Basin Areas Of Lake Mead, Larry J. Paulson Nov 1984

A Proposal To Fertilize The Overton Arm And Gregg Basin Areas Of Lake Mead, Larry J. Paulson

Publications (WR)

Several limnological studies have been conducted in Lake Mead during the past decade. The recent studies clearly show that most of Lake Mead is deficient in nutrients, especially phosphorus, and very low in productivity. The reservoir-wide average total phosphorus concentration for 1981 - 1982 was only 9 mg/m3. This is below levels found In most oligotrophic lakes and reservoirs. Algal biomass, as measured by chlorophyll-a, averaged only 1.5 mg/m3. That also places Lake Mead in the oligotrophic range. Transparency, as measured by a Secchi disc, averaged 9-5 m in Lake Mead during 1981-1982. That far exceeds …


Wetlands Preservation And The Protection Of Endangered Species As Limits On Western Water Development, A. Dan Tarlock Jun 1984

Wetlands Preservation And The Protection Of Endangered Species As Limits On Western Water Development, A. Dan Tarlock

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

25 pages.


[Section] 404 Panel Discussion, Gregory J. Hobbs, Jr. Jun 1984

[Section] 404 Panel Discussion, Gregory J. Hobbs, Jr.

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

5 pages.

Supplemental materials. Includes proposed bill language for Department of the Interior appropriations bill. Outline of key events and dates in the history of water law.


Panel: Section 404 Of The Clean Water Act And Section 7 Of The Endangered Species Act: Potential Impacts On Water Supplies [Supplemental Materials], Wendy C. Weiss Jun 1984

Panel: Section 404 Of The Clean Water Act And Section 7 Of The Endangered Species Act: Potential Impacts On Water Supplies [Supplemental Materials], Wendy C. Weiss

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

57 pages.

Supplemental materials. Includes text of Riverside Irrigation District v. Andrews, 568 F.Supp 563 and Opening Brief of Plaintiff-Intervenor-Appellants in Riverside Irrigation District v. Andrews, Cases No. 83-2114, 83-2115, 83-2119, 83-2230, April 3, 1984.


Groundwater Control Programs Affecting Water Development, Arthur L. Littleworth Jun 1984

Groundwater Control Programs Affecting Water Development, Arthur L. Littleworth

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

19 pages.


Ferc, Purpa And The Federal Power Act, Lawrence J. Wolfe Jun 1984

Ferc, Purpa And The Federal Power Act, Lawrence J. Wolfe

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

62 pages.

Contains references.


The Case For A Legislative Solution To Indian Water Claims, James M. Bush Jun 1984

The Case For A Legislative Solution To Indian Water Claims, James M. Bush

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

57 pages.


Reserved Water Rights Of Indian Allotments, Richard B. Collins Jun 1984

Reserved Water Rights Of Indian Allotments, Richard B. Collins

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

10 pages.

Contains references.


Instream Flows As Reserved Rights On Federal Reservations After United States V. New Mexico, Hank Meshorer Jun 1984

Instream Flows As Reserved Rights On Federal Reservations After United States V. New Mexico, Hank Meshorer

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

10 pages.


Effects Of The Clean Water Act On Water Availability And Development, Paula C. Phillips Jun 1984

Effects Of The Clean Water Act On Water Availability And Development, Paula C. Phillips

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

12 pages.


Introduction To Reserved Water Rights, Ralph W. Johnson Jun 1984

Introduction To Reserved Water Rights, Ralph W. Johnson

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

16 pages.


Indian Water Rights In The Supreme Court: A Review And Preview, Louis F. Claiborne Jun 1984

Indian Water Rights In The Supreme Court: A Review And Preview, Louis F. Claiborne

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

12 pages.


Agenda: The Federal Impact On State Water Rights, University Of Colorado Boulder. Natural Resources Law Center Jun 1984

Agenda: The Federal Impact On State Water Rights, University Of Colorado Boulder. Natural Resources Law Center

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

Conference organizers and/or speakers included University of Colorado School of Law professors James N. Corbridge, Jr., David H. Getches, Lawrence J. MacDonnell and Richard B. Collins.

In general, water rights are a matter of state law. However, the availability and development of water are affected by important federal rights, policies and programs. In this conference, an outstanding group of private practitioners, government representatives and academics consider this important topic.


Developments In Federal Water Policies And Programs, Harold W. Furman Ii Jun 1984

Developments In Federal Water Policies And Programs, Harold W. Furman Ii

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

14 pages.


Role Of The State Courts In Adjudicating Indian Water Rights, Jon L. Kyl Jun 1984

Role Of The State Courts In Adjudicating Indian Water Rights, Jon L. Kyl

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

39 pages.


Negotiation As A Means Of Quantifying Indian Water Rights, Joseph R. Membrino Jun 1984

Negotiation As A Means Of Quantifying Indian Water Rights, Joseph R. Membrino

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

88 pages.

Contains attachments.


A Bacteriological And Chemical Analysis Of Nonpoint Source Pollution In A Karst Aquifer Bowling Green, Kentucky, Wayne Green May 1984

A Bacteriological And Chemical Analysis Of Nonpoint Source Pollution In A Karst Aquifer Bowling Green, Kentucky, Wayne Green

Masters Theses & Specialist Projects

Monthly water samples collected from four sites in the Lost River Groundwater Basin, a shallow karst aquifer in the Bowling Green-Warren County area of Kentucky, represented samples from sites receiving conduit and diffuse flow. All sites were severely contaminated with bacteria, and on some occasions the surface water criteria for some heavy metals were exceeded.

Of the total 334 bacterial colonies identified 92.1% were verified as Escherichia coli by the API20E system. Acinetobacter calcoaceticus var. anitratum accounted for 2.10% of colonies; Citrobacter freundii for 0.30% Klebsiella pneumoniae for 0.90%; Klebsiella oxytoca, 0.90%; Citrobacter amalonaticus 0.30%; Enterobacter cloacae, 1.20%; …


Seasonal And Spatial Heterogeneity In The Limnetic Zooplankton Community Of Lake Mead, Gene Robert Wilde May 1984

Seasonal And Spatial Heterogeneity In The Limnetic Zooplankton Community Of Lake Mead, Gene Robert Wilde

Publications (WR)

Zooplankton samples collected from throughout Lake Mead, in 1981-1982, demonstrate the presence of a statistically significant seasonal and spatial heterogeneity in zooplankton densities. Seasonally, the major zooplankton groups were most abundant in the spring and fall, coincident with maxima in chlorophyll-a concentrations. Successions among the various rotifers, cladocerans and copepods present in the reservoir were influenced by food availability, diapause, predation by planktivorous fish and, possibly, water temperatures. Spatial heterogeneity in zooplankton densities was unrelated to water temperature, pH, conductivity and dissolved oxygen concentrations, but was related to the abundance of phytoplankton (chlorophyll-a concentrations) and fish. Statistical analyses indicate that …


The Role Of Nannoplankton In The Phytoplankton Dynamics Of Four Colorado River Reservoirs (Lakes Powell, Mead, Mohave, And Havasu), Jeffrey John Janik May 1984

The Role Of Nannoplankton In The Phytoplankton Dynamics Of Four Colorado River Reservoirs (Lakes Powell, Mead, Mohave, And Havasu), Jeffrey John Janik

Publications (WR)

Phytoplankton species composition and community size structure were studied in four warm-monomictic Colorado River reservoirs; lakes Powell, Mead, Mohave, and Havasu from March 1981 to February 1982. Sampling was done at approximately monthly intervals from several stations in each reservoir. The Utermohl technique was used to enumerate phytoplankton. The phytoplankton assemblage was divided into the following six size classes using microscopic techniques; netplankton (>64 um), and nannoplankton (>5, 5-11, 12-21, 22-44, and 45-64 um).

Total phytoplankton biomass and community size structure were different among these four reservoirs with considerable spatial and temporal variation present. Average reservoir-wide areal weighted …