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

Life Sciences Commons

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

1999

Environmental Sciences

Institution
Keyword
Publication
Publication Type

Articles 1 - 30 of 79

Full-Text Articles in Life Sciences

Reciprocal Transplantation Of The Desert Soil Crust: Can It Be Done?, Christina D. Cole Dec 1999

Reciprocal Transplantation Of The Desert Soil Crust: Can It Be Done?, Christina D. Cole

UNLV Theses, Dissertations, Professional Papers, and Capstones

A 100 meter X 100 meter study site was chosen at White Rock Springs in Red Rock Canyon National Conservation Area, Nevada. To examine Syntrichia caninervis, a desert crustal moss, reciprocal transplantations (20 mm and 40 mm diameter cores) were performed between shaded to shaded, exposed to exposed, and shaded to exposed microsites to determine if it was possible to transplant the study organism with reasonable survivorship. Transplants were inspected following rain events for percent hydration, number of dead stems, and change in percent cover. Data indicated that there was a low mortality rate of S. caninervis stems, and few …


Production Of The Subtropical Seagrass, Halodule Wrightii Aschers., In Lower Laguna Madre, Texas, Joseph L. Kowalski Dec 1999

Production Of The Subtropical Seagrass, Halodule Wrightii Aschers., In Lower Laguna Madre, Texas, Joseph L. Kowalski

Theses and Dissertations - UTB/UTPA

The autecology of shoal grass, Halodule wrightii Aschers., was studied at 1.2 m depth from June 1995 to February 1997 in Lower Laguna Madre (LLM), Texas. Halodule wrightii in LLM received about 47% surface irradiance, but otherwise displayed lower growth rates and biomass in nutrient-poor rhizosphere and water-column environments compared to H. wrightii populations in other Texas estuaries. High tissue N content and low C:N ratios belied low growth dynamics. Halodule wrightii in LLM is probably nutrient limited. A high nutrient demand by H. wrightii in a nutrient-poor environment may explain, in part, its gradual displacement by Thalassia testudinum and …


The Prairie Naturalist Volume 31 No.4 December 1999 Nov 1999

The Prairie Naturalist Volume 31 No.4 December 1999

The Prairie Naturalist

THE FISHES OF THE UPPER MOREAU RIVER ▪ T. M. Loomis, C. R. Berry, Jr., and J. Erickson

DO INTERNAL FIRE LANES AFFECT NEST DEPREDATION RATES IN PRAIRIES? ▪ K. A. Warren and M. R. Ryan

SPECIES COMPOSITION AND TROPHIC STRUCTURE OF INSECT COMMUNITIES IN TEXAS PRAIRIES. ▪ G. N. Cameron and E. H. Bryant

FIDELITY OF MALLARDS TO ARTIFICIAL NESTING STRl!CTURES ▪ T. Yerkes

OBSERVATIONS ON REPRODUCTION IN THREE SPECIES OF BATS ▪ D. W. Sparks, J. R. Choate, and R. J. Winn

EARLIEST SEASONAL RECORD OF REPRODUCTION IN THE HOARY BAT ON THE NORTHERN GREAT PLAINS ▪ T. …


Runoff From Fescue Plots Treated With Trimec, Cristopher G. Moss, Dwayne R. Edwards, Stephen R. Workman, R. Michael Williams Nov 1999

Runoff From Fescue Plots Treated With Trimec, Cristopher G. Moss, Dwayne R. Edwards, Stephen R. Workman, R. Michael Williams

Biosystems and Agricultural Engineering Faculty Publications

Runoff of herbicides can promote adverse impacts in receiving waters. The objective of this study was to assess the effects of rainfall delay, herbicide application rate, rainfall intensity, and pre-application rainfall on runoff of TRIMEC (a combination of 2,4-D, dicamba, and mecoprop), a herbicide that is commonly used in central Kentucky. The levels of rainfall delay were 0, 2, and 4 d following application; and the levels of herbicide application rate were 0, 0.5, 1 and 2 times the recommended rate. Simulated rainfall was applied at intensities of 64, 102, and 140 mm h-1; and the depths of …


Observations Of Shallow Groundwater Contamination Due To Leakage Of Dairy Effluent Ponds On The Swan Coastal Plain, Wa, Richard J. George Dr, D L. Bennett, J R M Bell, Roger Wrigley Oct 1999

Observations Of Shallow Groundwater Contamination Due To Leakage Of Dairy Effluent Ponds On The Swan Coastal Plain, Wa, Richard J. George Dr, D L. Bennett, J R M Bell, Roger Wrigley

Resource management technical reports

In response to the risk of pollution of surface water from farm runoff, dairy farmers have been encouraged to install effluent storage ponds. Previous research has indicated that leachate from these storages can contribute to groundwater contamination. This project assessed the performance of storages at eight sites on the Swan Coastal Plain (SCP), WA. Groundwater conditions were monitored for over three years to study the influence of soil type, water table depth and waste water characteristics.


Table Of Contents Volume 10, Number Four, Fall 1999, Risk Editorial Board Sep 1999

Table Of Contents Volume 10, Number Four, Fall 1999, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Table of contents for the journal RISK: Health, Safety & Environment (ISSN: 1073-8673)


Ecological Functions Of Constructed Oyster Reefs Along An Environmental Gradient In Chesapeake Bay: Final Report, Fx O'Beirn, Mark Luckenbach, Roger L. Mann, J Harding, J Nestlerode Sep 1999

Ecological Functions Of Constructed Oyster Reefs Along An Environmental Gradient In Chesapeake Bay: Final Report, Fx O'Beirn, Mark Luckenbach, Roger L. Mann, J Harding, J Nestlerode

Reports

Oyster reef habitat restoration within the Chesapeake Bay has as its objectives not only the enhancement of the commercially important oyster stocks, but also the restoration of associated assemblages of organisms and, most importantly, the restoration of ecological functions associated with natural reef communities. Despite our efforts to date, many uncertainties still exist with respect to achieving these restoration goals. These include long-term information on the temporal sequence of community development on new reef substrate, evaluating oyster recruitment patterns (a) across restored reef systems and (b) in relation to resident brood stocks.

In this study we sought to characterize the …


Results Of The Improved Soil Management & Cropping Systems For Waterlog-Prone Soils Project, Derk Bakker, G J. Hamilton, Peter I. Tipping, Cliff Spann, Doug Rowe Sep 1999

Results Of The Improved Soil Management & Cropping Systems For Waterlog-Prone Soils Project, Derk Bakker, G J. Hamilton, Peter I. Tipping, Cliff Spann, Doug Rowe

Resource management technical reports

No abstract provided.


The Prairie Naturalist Volume 31, No.3 September 1999 Aug 1999

The Prairie Naturalist Volume 31, No.3 September 1999

The Prairie Naturalist

HANTA VIRUS INFECTION IN NORTH DAKOTA SMALL MAMMALS: 1994,1995 ▪ R. W. Seabloom, J. J. Feist, and S L. McDonough

AMERICAN WOODCOCK IN COLORADO ▪ C. E. Braun

AVIFAUNA OF AN EARLY SUCCESSIONAL HABITAT ALONG THE MIDDLE MISSOURI RIVER ▪ D. L. Swanson

REPRODUCTIVE STATUS OF FLEA BEETLES IN NORTH DAKOTA AND SOUTH DAKOTA ▪ M. A. Brinkman and S. A. Clay

NUTRIENT AND ENERGY CHARACTERISTICS OF INVERTEBRATES FROM TWO LOCATIONS IN KANSAS ▪ S. G. Papon, R. J. Robel, and K. Kemp

BOOK REVIEWS

The Wood Warblers ▪ M. G. Knutson

A Fascination With Birds. ▪ J. A. Dechant …


Cavefish Population Status And Environmental Quality In Cave Springs Cave, Arkansas - Final Report Submitted To Arkansas Natural Heritage Commission, G. O. Graening, Arthur V. Brown Aug 1999

Cavefish Population Status And Environmental Quality In Cave Springs Cave, Arkansas - Final Report Submitted To Arkansas Natural Heritage Commission, G. O. Graening, Arthur V. Brown

Technical Reports

This report summarizes the continuing effort to monitor environmental quality in the Cave Springs Cave Natural Area and to implement the Ozark Cavefish Recovery Plan. Last year’s report (Brown et al., 1998) identified certain environmental stressors, including a trend over 15 years of increasing nutrient pollution, a low cavefish population count of only 106, and the presence of heavy metals in the cave water and one semi-volatile organic compound (the phthalate DEHP at 500 ppb) in resident crayfish tissue. This year’s monitoring effort demonstrates that fecal coliforms continue to exceed Arkansas State Water Quality Standards (Regulation 2), sometimes by a …


The Salinity And Hydrology Of The Upper Slab Hut Catchment, R Ferdowsian, A T. Ryder Aug 1999

The Salinity And Hydrology Of The Upper Slab Hut Catchment, R Ferdowsian, A T. Ryder

Resource management technical reports

No abstract provided.


The Translocation Of Barramundi. A Discussion Paper., Makaira Pty Ltd Jul 1999

The Translocation Of Barramundi. A Discussion Paper., Makaira Pty Ltd

Fisheries management papers

There is recognisable economic benefit to the translocation of barramundi, but there is also a need to ensure the translocation will not adversely impact upon the genetic diversity, introduce disease or impact on the natural environment and biodiversity. This discussion paper has been prepared to provide information to assist in the assessment of the possible impact of translocation of barramundi into and within Western Australia, for the purposed of recreational stock enhancement, aquaculture development and domestic stocking. In contemplating the translocation any aquatic species, signigicant economic and social benefits must be balanced with biological and environmental risks; that is, the …


The Crest, Summer 1999, Virginia Institute Of Marine Science Jul 1999

The Crest, Summer 1999, Virginia Institute Of Marine Science

Reports

Table of Contents:

  • New Research Aquarium System
  • Finfish Aquaculture at VIMS
  • Virginia Creates State Research Reserve System
  • Pollution-Laden Sediments In Constant Flux
  • Survey of Mid-Atlantic Sea Scallop Closed Areas
  • Pfiesteria Update
  • New Computer Program Helps Planners Balance Growth, Protection
  • Virginia Sea Grant to Administer Commercial Fishery Resource Program
  • VIMS Stranded Sea Turtle Project Underway Coastal Sediments Offer Clues to Climate Change, Pollution
  • Seemingly Barren Habitat Proves Vital for Economically Important Virginia Fish (juvenile flounder)


Biological Inventories Of Schoodic And Corea Peninsulas, Coastal Maine, 1996, Willaim E. Glanz, Bruce Connery, Norman Famous, Glen Mittelhauser, Melissa Perera, Marcia Spencer-Famous, Guthrie Zimmerman Jun 1999

Biological Inventories Of Schoodic And Corea Peninsulas, Coastal Maine, 1996, Willaim E. Glanz, Bruce Connery, Norman Famous, Glen Mittelhauser, Melissa Perera, Marcia Spencer-Famous, Guthrie Zimmerman

Biology and Ecology Faculty Scholarship

This project was designed to complete a preliminary biological inventory of US Navy and Acadia National Park lands on Schoodic and Corea Peninsulas in coastal Maine, with the overall goal of providing the Navy and the National Park Service with natural resource information sufficient for management decisions. In this region, lands administered by these agencies are adjacent to each other and present a unique opportunity to cooperatively assess and manage natural resources.

Prior to 1994, basic biological information on the Schoodic Peninsula region was scarce. A preliminary biological inventory was undertaken in 1994, which surveyed amphibians and reptiles, terrestrial mammals, …


Platte River Endangered Species Partnership: Collaboration Or Coercion In Disguise, Dale Strickland Jun 1999

Platte River Endangered Species Partnership: Collaboration Or Coercion In Disguise, Dale Strickland

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

9 pages.


An Environmental Perspective On Collaboration In Large Ecosystem Restoration Processes, Daniel F. Luecke Jun 1999

An Environmental Perspective On Collaboration In Large Ecosystem Restoration Processes, Daniel F. Luecke

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

13 pages (includes illustration).

Contains 3 pages of references.


Collaborative Approaches To Conservation: A Critical Look, Larry Macdonnell Jun 1999

Collaborative Approaches To Conservation: A Critical Look, Larry Macdonnell

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

7 pages.


Nebraska V. Wyoming: The End Or Collaboration?, Wendy Weiss, James Montgomery Jun 1999

Nebraska V. Wyoming: The End Or Collaboration?, Wendy Weiss, James Montgomery

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

13 pages.

Contains footnotes.


Transparencies Used In The Introductory Remarks Of Doug Kenney, Ph.D., Natural Resources Law Center, Douglas Kenney Jun 1999

Transparencies Used In The Introductory Remarks Of Doug Kenney, Ph.D., Natural Resources Law Center, Douglas Kenney

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

6 pages.


A Western Slope Perspective: Endangered Species And Municipal Water, David C. Hallford Jun 1999

A Western Slope Perspective: Endangered Species And Municipal Water, David C. Hallford

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

13 pages (includes 1 map).

Contains footnotes and 1 page of references.


Indian Water Rights And The Snake River Basin Adjudication, Peter C. Monson Jun 1999

Indian Water Rights And The Snake River Basin Adjudication, Peter C. Monson

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

19 pages (includes map).


Idaho's Snake River Basin Adjudication: A Window On Western Water Law, Jeffrey C. Fereday Jun 1999

Idaho's Snake River Basin Adjudication: A Window On Western Water Law, Jeffrey C. Fereday

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

34 pages.

Contains footnotes.


Federal Water Rights In The Snake River Basin Adjudication, Michael A. Gheleta Jun 1999

Federal Water Rights In The Snake River Basin Adjudication, Michael A. Gheleta

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

34 pages (includes maps).


The Esa: Oil And Water?, Joseph L. Sax Jun 1999

The Esa: Oil And Water?, Joseph L. Sax

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

4 pages.


Priorities Of The States For Clean Water Act Reauthorization, J. David Holm Jun 1999

Priorities Of The States For Clean Water Act Reauthorization, J. David Holm

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

16 pages.


Tmdl Implementation Under The Clean Water Act, Bruce Zander Jun 1999

Tmdl Implementation Under The Clean Water Act, Bruce Zander

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

17 pages (includes illustrations and maps).

Contains references.


Agenda: Strategies In Western Water Law And Policy: Courts, Coercion And Collaboration, University Of Colorado Boulder. Natural Resources Law Center, University Of Colorado Boulder. Center Of The American West Jun 1999

Agenda: Strategies In Western Water Law And Policy: Courts, Coercion And Collaboration, University Of Colorado Boulder. Natural Resources Law Center, University Of Colorado Boulder. Center Of The American West

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

1 v. (various pagings) : ill., maps, charts ; 29 cm

Conference organizers, session moderators and/or speakers included University of Colorado School of Law professors Gary C. Bryner, James N. Corbridge, Jr., David H. Getches, Douglas S. Kenney, Lawrence J. MacDonnell, Kathryn M. Mutz and Charles F. Wilkinson

Includes bibliographical references

The event will examine the principal problem-solving strategies in western water law and policy: courts, coercion and collaboration. In addressing this broad range of strategies, the program will focus on national, west-wide and Colorado-specific issues.

Conference activities will commence with a free public program cosponsored by the Center of …


The Platte River Cooperative Agreement: A Historical Perspective, Ann Salomon Bleed Jun 1999

The Platte River Cooperative Agreement: A Historical Perspective, Ann Salomon Bleed

Strategies in Western Water Law and Policy: Courts, Coercion and Collaboration (Summer Conference, June 8-11)

No abstract provided.


New Developments In A Hazard Identification Algorithm For Hormone Receptor Ligands, Steven P. Bradbury, Ovanes Mekenyan, Nina Nikolova, Stoyan Karabunarliev, Gerald T. Ankley, Bjorn Hansen Jun 1999

New Developments In A Hazard Identification Algorithm For Hormone Receptor Ligands, Steven P. Bradbury, Ovanes Mekenyan, Nina Nikolova, Stoyan Karabunarliev, Gerald T. Ankley, Bjorn Hansen

Steven P. Bradbury

Recently we described the Common REactivity PAttern (COREPA) technique to screen data sets of diverse structures for their ability to serve as ligands for steroid hormone receptors [1]. The approach identi®es and quanti®es similar global and local stereoelectronic characteristics associated with active ligands through a comparison of energeticallyreasonable conformer distributions for selected descriptors. For each stereoelectronic descriptor selected, discrete conformer distributions from a training set of ligands are evaluated and parameter ranges common for conformers from all the chemicals in the training set are identi®ed. The use of discrete partitions of parameter ranges to de®ne common reactivity patterns can, however, …


Table Of Contents Volume 10, Number Three, Summer 1999, Risk Editorial Board Jun 1999

Table Of Contents Volume 10, Number Three, Summer 1999, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Table of contents for the journal RISK: Health, Safety & Environment (ISSN: 1073-8673)