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Environmental Indicators and Impact Assessment

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Articles 4231 - 4260 of 4577

Full-Text Articles in Environmental Monitoring

Current Status And Long-Term Trends In Water Quality And Living Resources In The Virginia Tributaries And Chesapeake Bay Mainstem From 1985 Through 2005, Daniel M. Dauer, Harold G. Marshall, John R. Donat, Michael F. Lane, Suzanne C. Doughten, Frederick A. Hoffman Jan 2007

Current Status And Long-Term Trends In Water Quality And Living Resources In The Virginia Tributaries And Chesapeake Bay Mainstem From 1985 Through 2005, Daniel M. Dauer, Harold G. Marshall, John R. Donat, Michael F. Lane, Suzanne C. Doughten, Frederick A. Hoffman

Status and Trends for Virginia Chesapeake Bay

A marked decline in the water quality of the Chesapeake Bay has occurred over the past several decades. The disappearance of submerged aquatic vegetation in certain regions of the Bay, declines in the abundance of some commercially and recreationally important species, increases in the incidence of low dissolved oxygen events, changes in the Bay's food web, and other ecological problems have been related to the deteriorating water quality. The results of concentrated research efforts in the late 1970s and early 1980s stimulated the establishment of Federal and state directives to better manage the Chesapeake Bay watershed. By way of the …


Farm Water For The North-Eastern And Eastern Wheatbelt Of Western Australia (Zones 2 And 5), Susan Murphy-White Jan 2007

Farm Water For The North-Eastern And Eastern Wheatbelt Of Western Australia (Zones 2 And 5), Susan Murphy-White

Resource management technical reports

Large proportions of Western Australia's dryland farms suffer from water supply problems in the form of shortages, poor quality or combinations of these two factors ... A regional study for the North-eastern and Eastern Wheatbelt of Western Australia was undertaken. The base data used to develop water supply areas included soil type, landscape units, geology, hydrogeology, native vegetation and existing far water resource infrastructure.


Vegetation Re-Establishment Of Mojave Desert Plant Communities After 2005-2006 Wildland Fires, E. Cayenne Engel, Scott R. Abella Jan 2007

Vegetation Re-Establishment Of Mojave Desert Plant Communities After 2005-2006 Wildland Fires, E. Cayenne Engel, Scott R. Abella

Fire Science Presentations

Examine biotic and abiotic patterns that determine vegetative regrowth after wildfires to better inform land managers about what to expect after fires and how to manage restoration efforts.


Seeding Effectiveness For Eight Mojave Desert Perennials After A 2005 Wildfire, E. Cayenne Engel, Scott R. Abella, Christina L. Lund Jan 2007

Seeding Effectiveness For Eight Mojave Desert Perennials After A 2005 Wildfire, E. Cayenne Engel, Scott R. Abella, Christina L. Lund

Fire Science Presentations

To assess BLM seeding effectiveness in a mid-elevation burn where pre-burn plant communities were dominated by blackbrush, Joshua trees, and creosote.


Improved Parameterization To Invert Rayleigh-Wave Data For Shallow Profiles Containing Stiff Inclusions, Carlos Calderon-Macias, Barbara Luke Jan 2007

Improved Parameterization To Invert Rayleigh-Wave Data For Shallow Profiles Containing Stiff Inclusions, Carlos Calderon-Macias, Barbara Luke

Civil and Environmental Engineering and Construction Faculty Research

Inversion of shear-wave velocity profiles from phase-velocity measurements of Rayleigh-wave energy for sites containing stiff layers can be erroneous if such layers are not characterized in the starting or reference model. Incorporation of a priori knowledge then is key for converging upon a realistic or meaningful solution. Resolving soil profiles in desert regions where stiff layers cemented with calcium carbonate are intermixed with softer, uncemented media is an application for which locating shallow stiff inclusions has important implications. Identification of the stiff layers is critical for foundation design and cost estimating of excavations. A parameterization that seems adequate for this …


Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending December 31, 2006, Margaret N. Rees Dec 2006

Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending December 31, 2006, Margaret N. Rees

Wildlife Monitoring

  • Research assistant hired for Relict Leopard Frog conservation project.
  • High school minority intern hired to assist with research efforts.
  • Nocturnal visual encounter surveys for Relict Leopard Frogs conducted at all established natural sites and at 6 of 7 translocation sites.
  • Vegetation management conducted to decrease tamarisk cover along the stream at the Pupfish Refuge Spring – a Relict Leopard Frog translocation site.
  • New draft guidelines and field count protocols developed for midwinter bald eagle count.
  • Preliminary analysis and modeling of thrasher habitat selection conducted and sampling assessed
  • Call-broadcast surveys for thrasher species conducted at 43 points countywide, focusing on vegetation …


Annual Pastural Land Condition Report: 2005 / 2006 Financial Year, Department Of Agriculture And Food, Western Australia Dec 2006

Annual Pastural Land Condition Report: 2005 / 2006 Financial Year, Department Of Agriculture And Food, Western Australia

Natural resources published reports

The following 2005/06 Annual Report to the Western Australian Pastoral Lands Board presents an assessment of overall land condition on pastoral properties throughout the Rangelands of Western Australia.

The Western Australian Rangelands pastoral estate consists of 466 Stations covering approximately 910 000 km2. This equates to 42% of the States Rangelands. The total number of pastoral leases has continued to decline from the previous reporting period and there are currently 478 stations (525 Leases).

The Rangelands are made up of a diverse range of climates from the semi arid tropics in the north to the arid south. Topography and rainfall …


Preliminary Results Of A Nutrient Source Study In Wilgreen Lake, Madison County, Kentucky, Walter S. Borowski, Erin C. Jolly Nov 2006

Preliminary Results Of A Nutrient Source Study In Wilgreen Lake, Madison County, Kentucky, Walter S. Borowski, Erin C. Jolly

EKU Faculty and Staff Scholarship

Wilgreen Lake (Madison County, Kentucky) is an eutrophic lake formed by damming Taylor Fork, part of the Silver Creek watershed. Two principal tributaries drain urban areas of the city of Richmond, agricultural land typified by cattle grazing, and a high-density residential area using septic systems. The lake is “nutrient impaired,” so it is likely that anthropogenic nutrient loading is affecting water quality. Our study aims to first characterize the physical characteristics and water quality of the lake (2006), and then determine the specific proportion of nutrient inputs (2007) to the lake with the aim of remediating any possible degradation of …


Lake Mead National Recreation Area National Park Service: Final Progress Report, Period Ending September 30, 2006, Margaret N. Rees Sep 2006

Lake Mead National Recreation Area National Park Service: Final Progress Report, Period Ending September 30, 2006, Margaret N. Rees

Wildlife Monitoring

This task agreement was awarded by the National Park Service (NPS), Lake Mead National Recreation Area (LAME), to the Public Lands Institute (PLI) at the University of Nevada, Las Vegas (UNLV) on October 1, 2005. This monitoring, research, and management project consisted of several project elements focused on: bald eagles, peregrine falcons, rare songbird species (including southwest willow flycatcher); aquatic birds, relict leopard frog, desert tortoise, and bighorn sheep. In general, actions associated with this project focused on the development and implementation of inventory and monitoring programs to determine the distribution, status, abundance, trends, and potential threats to these animals, …


Inventory And Monitoring Of Aquatic Bird Species On Lakes Mead And Mohave 2004 - 2006, Joseph Barnes Sep 2006

Inventory And Monitoring Of Aquatic Bird Species On Lakes Mead And Mohave 2004 - 2006, Joseph Barnes

Wildlife Monitoring

This project was completed as part of a task agreements awarded by the National Park Service (NPS), Lake Mead National Recreation Area (LAME), to the Public Lands Institute (PLI) at the University of Nevada, Las Vegas (UNLV). This final report was completed under a task agreement ending on September 30, 2006, and was completed in support of an NPS project funded by the Southern Nevada Public Lands Management Act (PLMA) to inventory and monitor shoreline and near-shore natural resources on Lakes Mead and Mohave (DOI 2005). This report details inventory and monitoring efforts on shoreline and aquatic bird species between …


Benthic Biological Monitoring Program Of The Elizabeth River Watershed (2005), Daniel M. Dauer Aug 2006

Benthic Biological Monitoring Program Of The Elizabeth River Watershed (2005), Daniel M. Dauer

Elizabeth River Reports

Executive Summary

Macrobenthic communities of the Elizabeth River watershed have been quantitatively sampled since summer 1999. This report presents the data from the seventh year of sampling in 2005. The three objectives of the Benthic Biological Monitoring Program of the Elizabeth River watershed are: (1) To characterize the health of the tidal waters of the Elizabeth River watershed as indicated by the structure of the benthic communities. (2) To conduct trend analyses on long-term data at 14 fixed-point stations to relate temporal trends in the benthic communities to changes in water and/or sediment quality. Trend analyses will be updated annually …


Factors Contributing To Dust Emissions In Clark County, Nevada Quarterly Progress Report: Period Ending July 15, 2006, Margaret N. Rees Jul 2006

Factors Contributing To Dust Emissions In Clark County, Nevada Quarterly Progress Report: Period Ending July 15, 2006, Margaret N. Rees

Dust Emissions from Public Lands

  • Hiring of post-doctoral scholar is currently being finalized.
  • Modification to task agreement has been processed.


Lake Mead National Recreation Area Sensitive Wildlife Species Monitoring And Analysis: Quarterly Progress Report, Period Ending June 30, 2006, Margaret N. Rees Jun 2006

Lake Mead National Recreation Area Sensitive Wildlife Species Monitoring And Analysis: Quarterly Progress Report, Period Ending June 30, 2006, Margaret N. Rees

Wildlife Monitoring

  • Tortoise and tortoise habitat monitoring was conducted on the Northshore Road construction project, on the Southern Nevada Water Authority intake pipe project, the Frontier Telephone-Willow Beach project and the movie film at Temple Bar.
  • A total of 25 tortoise education classes were given to 90 individuals.
  • Evaluation of 3 potential sites for relict leopard frog translocations conducted but sites were not recommended.
  • Head-starting and translocation efforts for relict leopard frogs continued. 1183 animals translocated so far this year.
  • Relict Leopard Frog Conservation Team meeting held and yearly report completed.
  • Continuation of data management and QA of GPS collar information from …


Lockhart Catchment Appraisal 2005, Susan Murphy-White, P Leoni Jun 2006

Lockhart Catchment Appraisal 2005, Susan Murphy-White, P Leoni

Resource management technical reports

The Lockhart Catchment is the largest subcatchment of the Avon River Basin covering just over 3.56 million hectares, including 15 Shires running from Quairading and Bruce Rock in the north to Pingrup and Lake King in the south. This document aims to give the reader a starting point from which to further assess larger scale areas of the catchment for the purpose of planning to reverse and improve land degradation and sustainable farming in Western Australia.


Quality Management Plan - Mine Waste Technology Program, Mse Technology Applications, Inc. Jun 2006

Quality Management Plan - Mine Waste Technology Program, Mse Technology Applications, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Science & Research Strategy Charter, Public Lands Institute May 2006

Science & Research Strategy Charter, Public Lands Institute

Interagency Science and Research Strategy

  • Cooperatively established tools to measure ecosystem health are implemented
  • Common methodologies for data management are agreed to and implemented
  • Compatible database methods are utilized
  • Award of funding is fair and transparent
  • Establishment of a long-term strategy with tested and implemented proposal process


Odonates At The Clark County Wetlands Nature Preserve: A Look At Habitat And Relative Abundance, Erin Jolley May 2006

Odonates At The Clark County Wetlands Nature Preserve: A Look At Habitat And Relative Abundance, Erin Jolley

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study is to identify the various species, relative abundance and habitat of dragonfly and damselfly larvae at the Clark County Wetlands Park Nature Preserve (WPNP). An accurate assessment of these insects can be useful in interpreting potential indications of environmental problems at the Wetlands. From this data, necessary improvements can be made to the dragonfly habitat as well as the habitat of other surrounding organisms. Habitat identification is considered especially important because it is "structured by instream and surrounding topographical features, and is a major determinant of aquatic community potential" (Southwood, 1977). For purposes of this …


Presentation To Snap Board Of Directors, Public Lands Institute May 2006

Presentation To Snap Board Of Directors, Public Lands Institute

Interagency Science and Research Strategy

  • Conduct survey and produce a written report on the various alternative workforce suppliers available to the federal agencies for land management activities; include descriptions of each type of supplier, types of work each can supply, and costs and reimbursement requirements.
  • Identify required agreements and/or contracts and suggested adjustments needed in agency staffing to support alternative workforce capabilities.


Lake Mead National Recreation Area Sensitive Wildlife Species Monitoring And Analysis: Quarterly Progress Report, Period Ending March 31, 2006, Margaret N. Rees Mar 2006

Lake Mead National Recreation Area Sensitive Wildlife Species Monitoring And Analysis: Quarterly Progress Report, Period Ending March 31, 2006, Margaret N. Rees

Wildlife Monitoring

  • Research Assistant Professor hired to oversee NPS wildlife monitoring programs and serve as overall program coordinator for UNLV monitoring programs at Lake Mead National Recreation Area.
  • Final report completed for 2004-2005 desert tortoise monitoring project.
  • Final report completed for 2004-2005 relict leopard frog management.
  • Recommendations for vegetation management research to improve relict leopard frog habitats at North Shore springs made to NPS Management Team
  • Breeding surveys for relict leopard frog and egg collections for head-starting program completed.
  • Final report completed of 2004-2005 monitoring efforts on peregrine falcons.
  • Final report completed on 2004-2005 bald eagle monitoring.
  • Bald eagle survey for 2006 …


Effects Of Predator Removal On Upland Nesting Ducks In North Dakota Grassland Fragments, Kristen D. Chodachek, Michael J. Chamberlain Mar 2006

Effects Of Predator Removal On Upland Nesting Ducks In North Dakota Grassland Fragments, Kristen D. Chodachek, Michael J. Chamberlain

The Prairie Naturalist

Low nest success rates in the Prairie Pothole Region are attributed mainly to changes in the predator community coupled with reductions in availability of suitable nesting cover. We evaluated effects of removal of mammalian predators on pair density and nest success of ducks nesting on 259 ha sites in northeastern North Dakota during 2001 and 2002. We monitored pair density and duck nests on 10 sites with removal and 10 sites without removal. Overall nest success for both years was greater on trapped (53.4%) than nontrapped sites (28.7%). Pair densities were not affected by predator removal, but did increase across …


Evaluation Of The Sustainable Grazing On Saline Lands - Wa Producer Network : Influence On Practice Change And Decision-Making Capacity, Rebecca Heath, Jamie Bowyer, T M. Lacey Jan 2006

Evaluation Of The Sustainable Grazing On Saline Lands - Wa Producer Network : Influence On Practice Change And Decision-Making Capacity, Rebecca Heath, Jamie Bowyer, T M. Lacey

Resource management technical reports

No abstract provided.


Predicting The Percent Live Cover Of Corals: An In Situ Remote Sensing Approach, Deepak R. Mishra, Sunil Narumalani, Ronald Bahl, D. Rundquist, Merlin P. Lawson Jan 2006

Predicting The Percent Live Cover Of Corals: An In Situ Remote Sensing Approach, Deepak R. Mishra, Sunil Narumalani, Ronald Bahl, D. Rundquist, Merlin P. Lawson

Center for Advanced Land Management Information Technologies: Publications

Percent reflectance of corals is perhaps the most important remotely sensed data that can be related to their biophysical properties. Because most of the biophysical variables of corals (i.e., pigment content, live cover and algal overgrowth) are related to their reflectance spectra, the analysis and inversion of the spectra may provide an account of these variables. Our research was aimed at determining the relationship between the percent live cover and reflectance of corals. Two wavelength bands (405–425 nm, and 590–600 nm) were identified to establish the relationship. A linear relationship was observed, which showed higher correlation (R2 = …


Natural Resource Management Issues In The Avon River Basin, Paul Galloway Jan 2006

Natural Resource Management Issues In The Avon River Basin, Paul Galloway

Resource management technical reports

Analyses the risk of soil, land and water degradation within the Avon River Basin of Western Australia. Information is based on the interpretation of the characteristics of soils and landscapes within the Avon River basin. This report deals with 15 natural resource management issues and describes the extent of each issue, the impacts that each issue will have, management options that can be used to deal with each issue, and the effectiveness of each management option in dealing with the issues.


Satellite Image Based Classification Mapping For Spatially Analyzing West Virginia Corridor H Urban Development, Chandra L. Inglis-Smith Jan 2006

Satellite Image Based Classification Mapping For Spatially Analyzing West Virginia Corridor H Urban Development, Chandra L. Inglis-Smith

Theses, Dissertations and Capstones

The study area for this project is Corridor H, a designated Appalachian Development Highway located in Lewis, Upshur, Barbour Counties which are part of the Appalachian Plateau Province, and Randolph, Tucker, Grant and Hardy Counties which are Part of the Ridge and Valley Province in West Virginia. The region has a long history of occupation and a traditional economic structure consisting of mainly agriculture, timbering and coal mining. The final objective of the study was to perform change detection, using two Landsat datasets obtained from the USGS of the study area from 1987 and 2005 to determine if economic development, …


Ravensthorpe Area Catchment Appraisal 2006, A Massenbauer Jan 2006

Ravensthorpe Area Catchment Appraisal 2006, A Massenbauer

Resource management technical reports

The Ravensthorpe area covers 861, 000 hectares. Ninety percent of the study area covered in this report falls within the Ravensthorpe Shire, Western Australia. This document aims to give the reader a starting point from which to further assess larger scale areas of the catchment for the purpose of planning to reverse and improve land degradation and sustainable farming in Western Australia.


Lake Mead National Recreation Area Sensitive Wildlife Species Monitoring And Analysis: Quarterly Progress Report, Period Ending December 31, 2005, Margaret N. Rees Dec 2005

Lake Mead National Recreation Area Sensitive Wildlife Species Monitoring And Analysis: Quarterly Progress Report, Period Ending December 31, 2005, Margaret N. Rees

Wildlife Monitoring

  • Topsoil replacement monitored at Willow Beach Wastewater Rehabilitation Project
  • Desert tortoise surveys and monitoring conducted for Northshore Road reconstruction projects, and desert tortoise training provided to 9 construction contractors.
  • Field work associated with the project to remove desert tortoise radio transmitters from animals on Mormon Mesa completed.
  • Weekly data processing for Desert Bighorn Sheep monitoring associated with the Hoover Dam Bypass Project continued.
  • Fall field surveys for relict leopard frogs completed (11 sites surveyed); last of this year’s head-started animals released; RLFCT meeting held.
  • Work started on a digital database (GIS) of Peregrine falcon observations.
  • Monthly shorebird surveys conducted (22 …


Fisheries Occasional Publication No. 29 - Western Rock Lobster Fishery Effects Of Fishing On The Ecosystem - Scientific Reference Group (Chairman's Report No. 3, February 2005), Department Of Fisheries, Western Australia Nov 2005

Fisheries Occasional Publication No. 29 - Western Rock Lobster Fishery Effects Of Fishing On The Ecosystem - Scientific Reference Group (Chairman's Report No. 3, February 2005), Department Of Fisheries, Western Australia

Fisheries Occasional Publications

The Western Rock Lobster Effects of Fishing on the Ecosystem Scientific Reference Group (the SRG) was convened jointly by the Department of Fisheries and the WA Fishing Industry Council (WAFIC). The SRG met on Tuesday 1 February 2005 at the Fremantle Sailing Club, and this document is the official report from that meeting.


Annual Report To The Pastoral Lands Board Of Western Australia: 2004 / 2005 Financial Year, Rod Williams, Philip Thomas Nov 2005

Annual Report To The Pastoral Lands Board Of Western Australia: 2004 / 2005 Financial Year, Rod Williams, Philip Thomas

Natural resources published reports

The Department of Agriculture Western Australia has prepared this Annual Report for the financial year 2004 – 2005. The format is consistent with the previous two years, and now encapsulates enhanced detail and a broader range of headings within the report.

The Department of Agriculture’s services to the Board are outlined and environmental indicators are presented at the regional and property scales. New information being presented to the Board in this report includes Pastoral Lease property transfers, an explanation of the emerging Natural Resource Management program in the rangelands, the Australian Collaborative Rangeland Information System (ACRIS), an introduction to Carnarvon …


Maximum Size Of Fish Caught With Standard Gears And Recreational Angling, Kevin L. Pope, Gene R. Wilde, Daryl L. Bauer Oct 2005

Maximum Size Of Fish Caught With Standard Gears And Recreational Angling, Kevin L. Pope, Gene R. Wilde, Daryl L. Bauer

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

We correlated maximum lengths of freshwater fishes captured during 10 years with standard gears (i.e., gill nets, boat electrofishers and trap nets) and angling from Nebraska water bodies to determine which methodology provided better estimates of maximum size of fishes produced within a given water body. In general, maximum length of fishes captured with standard gears was smaller than maximum length of fishes captured with angling. Although significant (based on sequential Bonferroni adjustment) correlation was found in only one of nine sport fishes assessed, all correlations were positive indicating a general trend between maximum size of fishes captured with these …


Assessing The Health Of Fringing Salt Marshes Along The Fore River And Its Tributaries, Pamela A. Morgan, Lucas Curci, Cayce Dalton, Jeremy Miller Aug 2005

Assessing The Health Of Fringing Salt Marshes Along The Fore River And Its Tributaries, Pamela A. Morgan, Lucas Curci, Cayce Dalton, Jeremy Miller

Environmental Studies Faculty Publications

Casco Bay has experienced two significant oil spills in recent history - the Tamano Tanker spill in 1972 and the Julie N spill in 1996. In addition, the Fore River and its tributaries have experienced numerous small spills over the years, including the August 2002 fuel oil spill (2,900 gallons) and the April 2003 jet fuel spill (6,000 gallons). The impacts of these spills on the fringing salt marshes that line the edges of the Fore River and its tributaries are not well understood. Are these salt marshes resilient enough to withstand these impacts and still act as healthy marshes …