Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Environmental Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 20401 - 20430 of 22667

Full-Text Articles in Entire DC Network

Paul Alan Cox And Joel C. Janetski's Review Of Patrick Vinton Kirch's The Evolution Of The Polynesian Chiefdoms, Paul Alan Cox, Joel C. Janetski Oct 1986

Paul Alan Cox And Joel C. Janetski's Review Of Patrick Vinton Kirch's The Evolution Of The Polynesian Chiefdoms, Paul Alan Cox, Joel C. Janetski

Pacific Studies

No abstract provided.


Water Current, Volume 18, Fall-Winter 1986-97 Oct 1986

Water Current, Volume 18, Fall-Winter 1986-97

Water Current Newsletter

Wildlife Habitat, Water Demands to be Discussed at Seminar
Irrigation Tour to Arizona to See London Bridge, Bureau's Projects
Bleed Receives 1986 YWCA Tribute to Women Award
Research Review: Polishing of Biologically Denitrified Groundwater Supplies to Meet Drinking Standards
Good Potential for Coordination at UNL
Platte River Report Receives AWRA Award
High Plains Aquifer R and D Authorized for Schools, Producers in 1986 Act
Remote Sensing Reveals Changes in Wildlife Habitat


Janet Frost's Review Of Patrick Vinton Kirch's Feathered Gods And Fishhooks: An Introduction To Hawaiian Archaeology And Prehistory, Janet Frost Oct 1986

Janet Frost's Review Of Patrick Vinton Kirch's Feathered Gods And Fishhooks: An Introduction To Hawaiian Archaeology And Prehistory, Janet Frost

Pacific Studies

No abstract provided.


Winter And Summer Sediment Nutrient Exchange Rates In Hillsborough Bay, Florida, City Of Tampa Department Of Sanitary Sewers Sep 1986

Winter And Summer Sediment Nutrient Exchange Rates In Hillsborough Bay, Florida, City Of Tampa Department Of Sanitary Sewers

Reports

Winter and summer in-situ measurements of sediment oxygen demand (SOD) and nutrient exchange rates (NERs) were taken from sandy and muddy sediments in Hillsborough Bay during 1986. The summer-mud SOD rate of 0.23 g 02/m2/hr was roughly twice the summer-sand, winter-sand and winter-mud SOD rates. In general, nutrient flux rates into the water column were usually greater from mud relative to sand, and during the summer compared to the winter. Reservations in the application of the SOD/NER data and recommendations for future SOD/NER measurements are discussed.


Ecological Assessment, Classification And Management Of Tampa Bay Tidal Creeks, Tampa Bay Regional Planning Council (Tbrpc) Sep 1986

Ecological Assessment, Classification And Management Of Tampa Bay Tidal Creeks, Tampa Bay Regional Planning Council (Tbrpc)

Reports

The final product is a detailed restoration and management plan for three minor tributaries in the Tampa Bay watershed and one general application. It is the intent of the Council to implement all elements of the four plans wherever feasible during Developments of Regional Impact (DRI's) and Intergovernmental Coordination and Review (IC&R) reviews and through coordinat.ion with the DNR gill-net license fee habitat restoration program, as well as local government initiatives. The efforts of the Council's Agency on Bay Management will also be critical in implementing the findings and recommendations of this project.


International Law And External Threats To National Parks, Daniel Barstow Magraw Sep 1986

International Law And External Threats To National Parks, Daniel Barstow Magraw

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

41 pages.

Contains references.


Pollution In Parks: A Publication Of The National Park Service, Richard H. Briceland Sep 1986

Pollution In Parks: A Publication Of The National Park Service, Richard H. Briceland

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

28 pages (includes illustrations).

Contains references.


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.


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.


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 …


Preliminary Study Of The Seagrasses In Middle Tampa Bay Between Apollo Beach And Simmons Park, Mangrove Systems, Inc. Sep 1986

Preliminary Study Of The Seagrasses In Middle Tampa Bay Between Apollo Beach And Simmons Park, Mangrove Systems, Inc.

Reports

Comparison of recent (1986) and earlier (1983) aerial photography indicated that an apparent recovery of seagrasses was occurring on the subtidal shelf north of Simmons Park (Ruskin) and south of Apollo Beach, in Middle Tampa Bay (Fig. 1). This was suggested by the numerous circular patches of grass observed on the offshore portions of the shelf. This observation provided the incentive to undertake a preliminary assessment of seagrass species composition, percent cover, and shoot density along transects in this area. This study was a cooperative effort between the Bay Study Program (City of Tampa) and Mangrove Systems, Inc.


Interference Competition In A Heteromyid Community In The Great Basin Of Nevada, Usa, Cliff A. Lemen, Patricia W. Freeman Sep 1986

Interference Competition In A Heteromyid Community In The Great Basin Of Nevada, Usa, Cliff A. Lemen, Patricia W. Freeman

School of Natural Resources: Faculty Publications

Removal experiments with three species of heteromyid rodents were performed during two summers in the Great Basin of Nevada, USA. These experiments were designed to determine the importance of interference competition in these species by quantifying the short-term responses to the removal of one or more of the species. Our results indicate that the removal of a large species (Dipodomys merriami) does have a positive effect on a smaller species with a similar diet (Perognathus longimembris). These results and others presented are consistent with a hypothesis of interference competition. However, while there is short-term increase in …


State Of The Fisheries Report 1985, Fisheries Department Of Western Australia Sep 1986

State Of The Fisheries Report 1985, Fisheries Department Of Western Australia

Status Reports of the Fisheries and Aquatic Resources

Western Australia continues to be one of the leading fishing States in Australia. The total gross value of fish, crustaceans and molluscs for 1984/85 was $163 million (Table 1) to which may be added the value of the pearl culture industry resulting in a total value of approximately $190 million.


Proceedings : A Forest Based Economy - Carrying A Tradition Into The Future, Blaine House Conference On Forestry (December 6-7, 1984) Aug 1986

Proceedings : A Forest Based Economy - Carrying A Tradition Into The Future, Blaine House Conference On Forestry (December 6-7, 1984)

Maine Collection

Proceedings : A Forest Based Economy - Carrying A Tradition Into the Future

Blaine House Conference on Forestry (December 6-7, 1984)

Department of Conservation, State House Station 22, Augusta, Maine 04333, August 1986.

Contents: Table of Contents / Letter of Transmittal / The Forest 2020--Visions Of A Sustainable Forest / Forestry Resurvey: What Does It Say? How Can We Use It? / Can We Improve Maine's Timber Supply? / Atmospheric Deposition And Forests Of The Northeast / A National Perspective: What Is Maine's Competitive Niche? / The Future of Hardwood Markets / The Future of Softwood Markets / The State …


Resource Law Notes Newsletter, No. 9, Aug. 1986, University Of Colorado Boulder. Natural Resources Law Center Aug 1986

Resource Law Notes Newsletter, No. 9, Aug. 1986, University Of Colorado Boulder. Natural Resources Law Center

Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)

No abstract provided.


The Probe, Issue 65 - August 1986 Aug 1986

The Probe, Issue 65 - August 1986

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association
AUGUST, 1986
New NADCA Officers
African Lions in Idaho
Toxic Collars
2,4 D
ADC
Increased Tiger Population
“The Steel Trap in North America”
Rodent Plague in New Mexico
Letters to Ye Ed
Novel European Rabbit Control
Cleaning up After the Birds
Rabies
Iguana
Treasurer’s Report
Predator Control Program
Coyotes vs. Salmon


The Reclamation Of Boston Harbor: A Scientist's Perspective, Gordon T. Wallace Jr. Jun 1986

The Reclamation Of Boston Harbor: A Scientist's Perspective, Gordon T. Wallace Jr.

New England Journal of Public Policy

A major effort, costing in the neighborhood of $2 billion, is under way to restore the environmental quality of Boston Harbor. While Boston Harbor is unquestionably one of the most polluted urban estuaries in the world, it is also one of the least understood with respect to the basic physics, chemistry, and biology involved. This information is essential for the purpose of identifying processes that control the transport, effect, and fate of contaminants entering the estuary. Failure to obtain this information may lead to continued inappropriate and unnecessarily expensive solutions to a complex environmental problem. An effective solution will require …


Natural Resources Damage Litigation [Appendix], Michael Donovan Jun 1986

Natural Resources Damage Litigation [Appendix], Michael Donovan

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

80 pages (includes illustrations).

Contains references and historical notes.

Appendix contains 3 attachments:

1) Comprehensive Environmental Response, Compensation and Liability Act, ("CERCLA"), 42 U.S.C. 9601 et seq. (1980)

2) National Contingency Plan, 40 C.F.R. Part 440, 50 Fed. Reg. No. 224, Part III (November 20, 1985)

3) Natural Resource Damage Assessments - Proposed Rule, Department of Interior, 43 C.F.R. Part 11, 50 Fed. Reg. No. 245, Part IV (December 20, 1985)


The 1985/1986 Amendments To The Comprehensive Environmental Response, Compensation, And Liability Act: A Background Paper, Alan J. Gilbert Jun 1986

The 1985/1986 Amendments To The Comprehensive Environmental Response, Compensation, And Liability Act: A Background Paper, Alan J. Gilbert

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

20 pages.

Contains 2 attachments.


Agenda: Getting A Handle On Hazardous Waste Control, University Of Colorado Boulder. Natural Resources Law Center Jun 1986

Agenda: Getting A Handle On Hazardous Waste Control, University Of Colorado Boulder. Natural Resources Law Center

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

The conference chairman was University of Colorado School of Law professor Lawrence J. MacDonnell.

During the past ten years Congress has made the regulation of hazardous waste a priority. This conference focuses on the Resource Conservation and Recovery Act, as amended in 1984, and the Comprehensive Environmental Response, Compensation and Liability Act.

This conference attracted about 100 registrants from 16 states plus the District of Columbia. John G. Welles, Regional Director for EPA Region 8, presented a luncheon address.


Reduction Of Hazardous Waste—Pay Me Now Or Pay Me Later, Frank B. Friedman Jun 1986

Reduction Of Hazardous Waste—Pay Me Now Or Pay Me Later, Frank B. Friedman

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

8 pages.

Contains 1 attachment.


Long-Term Effects Of Tillage On The Retention And Transport Of Soil Water, H. D. Scott, L. S. Wood, W. M. Miley Jun 1986

Long-Term Effects Of Tillage On The Retention And Transport Of Soil Water, H. D. Scott, L. S. Wood, W. M. Miley

Arkansas Water Resources Center Technical Reports

Quantitative measurements were made of the physical and chemical properties of two virgin prairie soils, Crowley and Jay, that remain in their native Arkansas environments and of similar soils that had been tilled extensively. Comparisons were made of soil properties at several depths. When compared with the tilled soils the virgin soils had higher organic matter contents, saturated hydraulic conductivities and water retained at several applied pressures. Bulk densities and hydraulic resistances were lower in the virgin soils. For the Crowley silt loam, values of pH and elemental contents of the virgin soil were higher than those of the tilled …


Algal Growth Potentials And Heavy Metal Concentrations Of The Primary Streams To Upper Beaver Lake, Richard L. Meyer, W. Reed Green, Kenneth F. Steele, Diana Wickliff Jun 1986

Algal Growth Potentials And Heavy Metal Concentrations Of The Primary Streams To Upper Beaver Lake, Richard L. Meyer, W. Reed Green, Kenneth F. Steele, Diana Wickliff

Arkansas Water Resources Center Technical Reports

Meyer and Green (1984) demonstrated the probable inhibition of algal growth potential by heavy metals in upper Beaver Lake. Upper Beaver Lake receives water from three tributaries. One contains a small reservoir and the combined streams receive sewage input. Collections were made approximately monthly at eight sites for the Algal Assay Bottle Test (AABT) and heavy metal analysis. In general, AABT results indicated that the collections above the sewage lnput were phosphorus limited while those below were nitrogen or combined nitrogen and phosphorus limited. Growth inhibition occurred during summer and early fall at various sites with greater inhibition at the …


The Population Biology Of Oak Middle Creek Structure 58-B After An Experimental Stocking With Adult Fish: A Three Year Evaluation, Donn A. Rodekohr Jun 1986

The Population Biology Of Oak Middle Creek Structure 58-B After An Experimental Stocking With Adult Fish: A Three Year Evaluation, Donn A. Rodekohr

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


The Prairie Naturalist Volume 18, No. 2. June 1986 Jun 1986

The Prairie Naturalist Volume 18, No. 2. June 1986

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

WINTER ECOLOGY OF BALD EAGLES IN SOUTHCENTRAL NEBRASKA ▪ G. R. Lingle and G. L. Krapu

NATURAL HISTORY OF THE PLAINS POCKET MOUSE IN AGRICULTURALLY DISTURBED SANDSAGE PRAIRIE ▪ K. M. Reed and J. R. Choate

COMMERCIAL SUNFLOWERS: FOOD FOR RED FOXES IN NORTH DAKOTA ▪ A. B. Sargeant, S. H. Allen, and J. P. Fleskes

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1985 ▪ R. N. Randall

NEST SITES OF DUCKS IN GRAZED MIXED-GRASS PRAIRIE IN NORTH DAKOTA ▪ H. F. …


As Assessment Of The Fisheries Research Program Of The National Marine Fisheries Service, Gary Page Bulmer May 1986

As Assessment Of The Fisheries Research Program Of The National Marine Fisheries Service, Gary Page Bulmer

Marine Affairs Theses and Major Papers

The nation's fishery management regime has three primary sets of players: the scientific advisors, the managers, and the fishermen. The advisors include federal agencies, state agencies, universities, regional and interstate bodies, and international bodies. The National Marie Fisheries Service (NMFS) has the lead role as scientific advisor. As used here "management" is defined broadly to include the instructions and funding that the researchers are given. "Fisheries research" is also defined broadly for the purposes of this paper. It means the collection of any biological, economic, or social information which is relevant to fisheries management.


The Effects Of Recreation Specialization And Motivations On The Environmental Setting Preferences Of Backcountry Hikers, Randy J. Virden May 1986

The Effects Of Recreation Specialization And Motivations On The Environmental Setting Preferences Of Backcountry Hikers, Randy J. Virden

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study explored how recreation specialization and different types of motivations were related to environmental settings preferred by backcountry hikers. A questionnaire was developed that measured the level of hiking specialization, desired psychological outcomes, and preferred environmental setting attributes. Questionnaires were mailed to 619 backcountry hikers from three Intermountain West hiking areas; a response rate of 68 percent was attained.

Results of the study revealed significant associations between the level of hiking specialization and the psychological states desired by backcountry hikers. In general, increased hiking specialization served to increase the importance of specific psychological outcomes such as autonomy, exercise, achievement …


The Report Of The Southern Western Australian Shark Working Group., P. Millington Apr 1986

The Report Of The Southern Western Australian Shark Working Group., P. Millington

Fisheries Management Papers

The southern Western Australian Shark Working Group was formed to investigate the southern shark fishery and advise the Minister for Fisheries on options for future management. Membership comprised six fishermen from regional professional fishermen's associations and two Fisheries Department officers. The Working Group considered that each shark fisherman obtaining an entitlement should then be restricted in the length of fishing gear he can use and the number of months he can fish. The individual's time and gear entitlement would be approximately that length of gear being used and time spent fishing in a period shortly before the bench mark date. …


The Probe, Issue 62 - April 1986 Apr 1986

The Probe, Issue 62 - April 1986

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association
APRIL, 1986
Gita-magari Farm Community
Survey of Landholders on the Wild Dog Problem in Eastern Victoria
Treasurer’s Report
1985 Report on Hunting Issues
Vertebrate Pest Biology and Control
Anti-Trapping Lawsuit Dismissed
California Condors
Letters to Ye Ed
ADC to Agriculture
Big Game Hunting in Alaska
the Timber Wolf
Rat-Free Alberta
Rats
New Director Appointed to USFWS
Birding
Bird Scares