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Natural Resources Management and Policy

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Articles 7351 - 7380 of 8290

Full-Text Articles in Physical Sciences and Mathematics

Reproductive Biology Of Pinus Sylvestris L.: Seed Yield, Flower Phenology, The Response Of Young Seedlings To Ga 4/7, And Developmental Anatomy, Teresa K. Boes Dec 1989

Reproductive Biology Of Pinus Sylvestris L.: Seed Yield, Flower Phenology, The Response Of Young Seedlings To Ga 4/7, And Developmental Anatomy, Teresa K. Boes

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

No abstract provided.


Introduction And Enhancement Of Vegetative Cover At Lake Mead, Jennifer S. Haley, Lisa K. Croft, Suzanne E. Leavitt, Larry J. Paulson Dec 1989

Introduction And Enhancement Of Vegetative Cover At Lake Mead, Jennifer S. Haley, Lisa K. Croft, Suzanne E. Leavitt, Larry J. Paulson

Publications (WR)

Studies done by the Nevada Department of Wildlife (NDOW) and the Arizona Fish and Game between 1978 and 1981 indicate that inadequate cover may be limiting the production and survival of largemouth bass at the Lake Mead National Recreation Area (LMNRA). As a result of these studies, NDOW initiated a contract in 1986 with the Lake Mead Research Center (LMRC) to investigate means of improving habitat for game fish by introducing natural and/or artificial cover.

During Phase I (1986-1987) of this contract, the shoreline of Lake Mead was surveyed for aquatic and terrestrial plant growth. Also during this time, submerged …


Oyster Spatfall In Virginia Rivers: 1989 Annual Summary, Bruce J. Barber Dec 1989

Oyster Spatfall In Virginia Rivers: 1989 Annual Summary, Bruce J. Barber

Reports

The Virginia Institute of Marine Science (VIMS) conducts surveys of oyster spatfall (or "setting") in Virginia waters throughout the summer reproductive period. This survey provides an estimate of the potential of a particular area for receiving a "strike 11 or set of oysters on the bottom and helps define the timing of setting events. Information obtained by this effort is valuable to the Virginia Marine Resources Commission (VMRC) for its shell repletion program, and to private oyster growers, both of whom are interested in maximizing the timing of shell planting. To assist in that area, a biweekly report of spatfall …


Species Richness Gradients Of Oak Forest Plants Along The Missouri River In Nebraska And Iowa, Steven B. Rolfsmeier Dec 1989

Species Richness Gradients Of Oak Forest Plants Along The Missouri River In Nebraska And Iowa, Steven B. Rolfsmeier

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The upland deciduous forests of the Missouri River valley contain many plants typical of forests to the east of this area, which are assumed to have migrated northward and westward along the river in postglacial times. Previous workers have reported a gradient of decreasing species richness upstream among woody species, which is suggested to be the result of climatic gradients and differential dispersal capabilities of the immigrant species. Floristic work on all vascular species in eight woodland sites along the Nebraska-Iowa border quantifies the presence of similar gradients for herbaceous species, but of differing degrees. These studies also reveal the …


To The U.S. Department Of Transportation: Comments Of The Environmental Defense Fund On The Secretary Of Transportation’S National Transportation Policy, Robert E. Yuhnke Nov 1989

To The U.S. Department Of Transportation: Comments Of The Environmental Defense Fund On The Secretary Of Transportation’S National Transportation Policy, Robert E. Yuhnke

Air Quality Protection in the West (November 27-28)

20 pages.


Health Effects Of Air Pollutants (Sulfur Dioxide, Ozone, And Carbon Monoxide), Robert A. Bethel Nov 1989

Health Effects Of Air Pollutants (Sulfur Dioxide, Ozone, And Carbon Monoxide), Robert A. Bethel

Air Quality Protection in the West (November 27-28)

19 pages (includes illustrations).

Contains references.


Urban Ambient Air Quality Trends, N. O. Gerald Nov 1989

Urban Ambient Air Quality Trends, N. O. Gerald

Air Quality Protection in the West (November 27-28)

24 pages (includes illustrations and maps).


Urban Air Quality Litigation Under The Clean Air Act: Past, Present And Future, David S. Baron Nov 1989

Urban Air Quality Litigation Under The Clean Air Act: Past, Present And Future, David S. Baron

Air Quality Protection in the West (November 27-28)

20 pages.

Contains footnotes.


Motor Vehicle Air Pollution Control: The Remaining Issues, Michael P. Walsh Nov 1989

Motor Vehicle Air Pollution Control: The Remaining Issues, Michael P. Walsh

Air Quality Protection in the West (November 27-28)

26 pages (includes illustrations).

Contains references.


Agenda: Air Quality Protection In The West, University Of Colorado Boulder. Natural Resources Law Center Nov 1989

Agenda: Air Quality Protection In The West, University Of Colorado Boulder. Natural Resources Law Center

Air Quality Protection in the West (November 27-28)

Conference organizers, session moderators and/or speakers included University of Colorado School of Law professor Mark S. Squillace.

Visibility, acid rain, air toxics, and urban air pollution are the topics of an upcoming Center conference on air quality in the West. The conference will be held at the School of Law in Boulder on November 27-28, 1989. Presentations will describe the nature and scope of the issues, the existing legal framework and experience with its implementation, and proposed changes in the law. Emphasis will be placed on air quality issues in the West and efforts underway to address these problems. Special …


Diminishing Views: Air Quality In Western National Parks, Christine L. Shaver Nov 1989

Diminishing Views: Air Quality In Western National Parks, Christine L. Shaver

Air Quality Protection in the West (November 27-28)

17 pages.

Contains references.


Strategies To Overcome Agency Recalcitrance Under The Federal Clean Air Act: The Acid Rain Litigation Experience, David R. Wooley Nov 1989

Strategies To Overcome Agency Recalcitrance Under The Federal Clean Air Act: The Acid Rain Litigation Experience, David R. Wooley

Air Quality Protection in the West (November 27-28)

12 pages.


Regional Air Quality Concerns In The West: Acid Deposition And Ozone, Kathy A. Tonnessen Nov 1989

Regional Air Quality Concerns In The West: Acid Deposition And Ozone, Kathy A. Tonnessen

Air Quality Protection in the West (November 27-28)

22 pages.

Contains 3 pages of references.


Toxic Air Pollution: New Solutions To Old Problems, Devra Lee Davis, Curtis Moore Nov 1989

Toxic Air Pollution: New Solutions To Old Problems, Devra Lee Davis, Curtis Moore

Air Quality Protection in the West (November 27-28)

12 pages.


Transboundary Air Pollution: The Legal Framework, Mark S. Squillace Nov 1989

Transboundary Air Pollution: The Legal Framework, Mark S. Squillace

Air Quality Protection in the West (November 27-28)

12 pages (includes illustrations).

Contains footnotes.


Water Resources Review - November 1989, Annis Water Resources Institute Nov 1989

Water Resources Review - November 1989, Annis Water Resources Institute

AWRI Reviews

No abstract provided.


Agenda: New Challenges For Environmental Protection: Second Sino-American Conference On Environmental Law, University Of Colorado Boulder. Natural Resources Law Center Oct 1989

Agenda: New Challenges For Environmental Protection: Second Sino-American Conference On Environmental Law, University Of Colorado Boulder. Natural Resources Law Center

New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)

Workshop held Sept. 18-19, 1989; conference held Oct. 12-13, 1989, in Boulder, Colorado.

Conference speakers included University of Colorado School of Law professors Daniel Barstow Magraw and Lawrence J. MacDonnell.

Contents of papers from workshop and conference:

To protect developing city by the enactment of local laws and regulations / Wu Zilin -- Legislative control of air pollution & water pollution of the P.R.China / Xiao Longan -- The law of natural conservation in China / Ma Xiang-cong -- 'Weighing environmental risks : EPA's unfinished business', Environment, vol. 30, no. 6, July/August 1988, p. 14-17, 34-39 / Richard Morgenstern, Stuart …


Reconsidering Water Quality Protection In The United States, Lawrence J. Macdonnell Oct 1989

Reconsidering Water Quality Protection In The United States, Lawrence J. Macdonnell

New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)

4 pages.


The United States Experience With Air Pollution Control, A. Dan Tarlock Oct 1989

The United States Experience With Air Pollution Control, A. Dan Tarlock

New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)

4 pages.


International Environmental Issues [Outline], Zheng-Kang Cheng, Daniel Magraw Oct 1989

International Environmental Issues [Outline], Zheng-Kang Cheng, Daniel Magraw

New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)

2 pages.


United States Hazardous Waste Law And Policy, A. Dan Tarlock Oct 1989

United States Hazardous Waste Law And Policy, A. Dan Tarlock

New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)

3 pages.


The Law Of Natural Conservation In China, Xiang-Cong Ma Oct 1989

The Law Of Natural Conservation In China, Xiang-Cong Ma

New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)

19 pages.


Legislative Control Of Air Pollution & Water Pollution Of The P.R. China, Longan Xiao Oct 1989

Legislative Control Of Air Pollution & Water Pollution Of The P.R. China, Longan Xiao

New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)

10 pages.


To Protect Developing City By The Enactment Of Local Laws And Regulations, Zilin Wu Oct 1989

To Protect Developing City By The Enactment Of Local Laws And Regulations, Zilin Wu

New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)

13 pages.


The Marine Environmental Protection Law Of The People’S Republic Of China (Chinese Version And Unofficial English Translation), Jianying Ye Oct 1989

The Marine Environmental Protection Law Of The People’S Republic Of China (Chinese Version And Unofficial English Translation), Jianying Ye

New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)

40 pages.


Existing Legal Treatment Of Developing Countries: Differential, Contextual, And Absolute Norms, Daniel Barstow Magraw Oct 1989

Existing Legal Treatment Of Developing Countries: Differential, Contextual, And Absolute Norms, Daniel Barstow Magraw

New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)

53 pages.

Contains 11 pages of endnotes.


The National Environmental Policy Act: No Longer A Teenager, But Not Yet Grown-Up, George W. (Rock) Pring Oct 1989

The National Environmental Policy Act: No Longer A Teenager, But Not Yet Grown-Up, George W. (Rock) Pring

New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)

98 pages.

Contains footnotes.


Spruce Budworm In Maine: The End Of The Outbreak: Biological Conditions In 1986, 1987, And 1988, And A Look At The Future, Henry Trial Jr. Oct 1989

Spruce Budworm In Maine: The End Of The Outbreak: Biological Conditions In 1986, 1987, And 1988, And A Look At The Future, Henry Trial Jr.

Maine Collection

Spruce Budworm in Maine: The End of the Outbreak: Biological Conditions in 1986, 1987, and 1988, and a Look at the Future

by Henry Trial, Jr., Insect and Disease Management Division

Technical Report No. 28

Maine Forest Service, Dept. of Conservation, Augusta, Maine, October 1989.

Contents: Introduction / Biological Conditions in 1986, 1987, and 1988 / Control Activities / Forest Conditions-1986 to 1988 and a Look at the Future / Spray Operations and Forecast of Conditions in Quebec and New Brunswick, 1986-1988 / The Future of Budworm in the Region and in Maine / List of Figures / List of …


Resource Law Notes Newsletter, No. 18, Sept. 1989, University Of Colorado Boulder. Natural Resources Law Center Sep 1989

Resource Law Notes Newsletter, No. 18, Sept. 1989, University Of Colorado Boulder. Natural Resources Law Center

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

No abstract provided.


Toxicology Of Synthetic Pyrethroids In Aquatic Organisms: An Overview, Steven P. Bradbury, Joel R. Coats, D. M. Symonik, S. D. Dyer, L. K. Timson, G. J. Atchison Aug 1989

Toxicology Of Synthetic Pyrethroids In Aquatic Organisms: An Overview, Steven P. Bradbury, Joel R. Coats, D. M. Symonik, S. D. Dyer, L. K. Timson, G. J. Atchison

Steven P. Bradbury

The aquatic toxicology of the photostable synthetic pyrethroid insecticides as it affects two important groups of susceptible organisms — fish and aquatic insects — is discussed. The sensitivity of these aquatic species to the pyrethroids is dependent on several factors, including toxicokinetics, target site (nervous system), sensitivity and possible secondary mechanisms of action, as well as chemical and physical properties of the aquatic medium that influence toxicity and bioavailability. Uptake rates and routes of fenvalerate greatly affected the toxicity of fenvalerate to mosquito larvae. LD50 values were determined for cuticular and dietary exposure routes by utilizing radiolabeled fenvalerate at the …