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Articles 5491 - 5520 of 6788

Full-Text Articles in Environmental Indicators and Impact Assessment

Implications Of The Monck Head Boat Launching Facility On Adjacent Intertidal Sessile Assemblages (Coral Bay, Western Australia), Megan Sabal Apr 2009

Implications Of The Monck Head Boat Launching Facility On Adjacent Intertidal Sessile Assemblages (Coral Bay, Western Australia), Megan Sabal

Independent Study Project (ISP) Collection

The aim of this study was to observe if the construction of the Monck Head boat launching facility in September 2007 has impacted the adjacent intertidal sessile assemblages. Through a series of linear transects and quadrats, data was gathered to look at diversity and species composition on both north and south sides of the boat launching facility. Measurements of sand accumulation and map interpretation of fetch also provided insight to local physical processes of water flow, sedimentation and wave energy. The results showed that there was a significant accumulation of sand on the south side of the boat launching facility …


Droughtscape, Spring 2009, Kelly Smith Apr 2009

Droughtscape, Spring 2009, Kelly Smith

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

U.S. Drought Monitor Publishes Map 500!

Weakening La Niña May Mean Relief for Texas

Upcoming Workshops

Drought Impacts Worst in California, Texas

CoCoRaHS to Request Drought Impact Data, Too

NDMC Adds Researcher

K-12 Students Learn About Drought


Changes In Producer Attitudes Towards Windbreaks In Eastern Nebraska, 1983 To 2009, Kim Tomczak Apr 2009

Changes In Producer Attitudes Towards Windbreaks In Eastern Nebraska, 1983 To 2009, Kim Tomczak

Department of Environmental Studies: Undergraduate Student Theses

Abstract Windbreaks are rows of trees or shrubs arranged on the landscape to reduce wind speed. In agricultural landscapes we find them as farmstead windbreaks, livestock windbreaks and field windbreaks. While farmstead and livestock windbreaks are well accepted by the agricultural community, field windbreaks are often viewed differently. A 1982 study of the attitudes of farmers in Eastern Nebraska indicated that many of the producers were around the age of 50 and that they used different types of windbreaks. This study repeated that survey in the same. When compared to data from 1982, farmers today are not educated about the …


A Survey Of Western United States Instream Flow Programs And The Policies That Protect A River's Ecosystem, Kyle Jackson Apr 2009

A Survey Of Western United States Instream Flow Programs And The Policies That Protect A River's Ecosystem, Kyle Jackson

Department of Environmental Studies: Undergraduate Student Theses

The Western United States can best be described as a vast, varying land, with the high plains to the east and the jagged horizons of Rockies to the west. However there is one common trait shared by these states: the lack of water resources. With the continued development of this land, the fact that water is scarce is becoming more real. This issue became more difficult to handle as the public became more aware that many competing uses existed for the finite resource, and those different uses were degrading the natural environments of the surface waters. With this realization instream …


Env 492 Undergraduate Research Symposium, Scott R. Abella Apr 2009

Env 492 Undergraduate Research Symposium, Scott R. Abella

Public Policy and Leadership Faculty Research

In spring semester since January, UNLV Environmental Studies and Biology students in ENV 492 (Undergraduate Research) have conducted a wide variety of ecological research projects.


Colorado College State Of The Rockies Report Card, Walter E. Hecox, Elizabeth L. Kolbe, Matthew K. Reuer Apr 2009

Colorado College State Of The Rockies Report Card, Walter E. Hecox, Elizabeth L. Kolbe, Matthew K. Reuer

Publications (SD)

This year’s Report Card content is largely focused upon wildlife, one of the key natural treasures of the Rockies and a distinguishing aspect to the wildness and beauty we cherish. A related section evaluates the Wild and Scenic River system in the Rockies and how this federal act has protected certain reaches in the West compared to other federal designations and unprotected streams. A key variable for the Rockies’ future is a growing population affecting our natural resources, and in this Report Card we consider the concentration of population growth within large metropolitan areas, a demographic trend known as a …


Differential Response Of Amp Activated Protein Kinase (Ampk) And Hsp70 To Temperature Stress In The Gastropod, Nucella Lapillus, Emily Zimmermann Apr 2009

Differential Response Of Amp Activated Protein Kinase (Ampk) And Hsp70 To Temperature Stress In The Gastropod, Nucella Lapillus, Emily Zimmermann

All Theses And Dissertations

Populations of the gastropod Nucella lapillus are polymorphic for shell color, with light-colored shells predominating on warmer, wave-protected shores and dark-colored shells limited primarily to cooler, wave-exposed shores. During thermal stress, darker shells attain higher body temperatures than lighter shells. These results suggest that heat stress may determine field distribution patterns. However, there is currently little evidence of physiological consequences of thermal stress in these organisms. Following the guiding hypothesis that heat stress leads to cellular energy depletion, we explored whether the central energy regulator AMP-activated Protein Kinase (AMPK) is activated by heat stress. We compared this response in both …


La Calidad Del Agua Potable En Arica, Con Respecto A La Salud, Emily Lubell Apr 2009

La Calidad Del Agua Potable En Arica, Con Respecto A La Salud, Emily Lubell

Independent Study Project (ISP) Collection

Water is essential to sustain life, and the availability of safe drinking water is a concern throughout the world. This study examines the potential negative health effects related to drinking the potable water in Arica, Chile. It also looks at who has access to purified water. This study was implemented over a span of four weeks in which information was collected from different local resources including, the potable water distributor, private water vendors, professors, and public health service workers. In comparison with 2001, 2009 levels of boron, total hardness and total dissolved solids are higher in concentration. In both 2001 …


Pomacea Canaliculata In Tram Chim National Park: An Examination Of The Golden Apple Snail Within Local Vegetation Populations, Justin Loiseau Apr 2009

Pomacea Canaliculata In Tram Chim National Park: An Examination Of The Golden Apple Snail Within Local Vegetation Populations, Justin Loiseau

Independent Study Project (ISP) Collection

The golden apple snail (Pomacea canaliculata) is an invasive species that was first introduced into Southeast Asia in the 1980’s. Nearly three decades later, Pomacea canaliculata has become a widespread pest that threatens several key crops of the region, including Vietnam’s expansive rice fields. Although the economic implications of the spread of Pomacea canaliculata throughout Vietnam are disastrous, the environmental implications are also quite shocking. In Tram Chim National Park, the golden apple snail has shown its ability to survive and thrive off of local grasses and wild rice. To better understand the threat level of Pomacea canaliculata to Tram …


The Amphibian And Reptile Diversity Of Tràm Chim National Park, Đống Tháp Province, Việt Nam, Alex Krohn Apr 2009

The Amphibian And Reptile Diversity Of Tràm Chim National Park, Đống Tháp Province, Việt Nam, Alex Krohn

Independent Study Project (ISP) Collection

The herpetofauna of the Mekong Delta Region of Vietnam is not as frequently studied as the fauna of the Central and Northern Highlands Regions of the same country. Tram Chim National Park is situated in the Mekong Delta Region in Đồng Tháp Province and is one of the last remaining intact areas of the “Plain of Reeds” ecosystem that once used to cover this now mainly agricultural land. Although studies on the bird fauna, vegetation and ecological management of Tram Chim National Park are common, there has never been a study of the parks reptiles and amphibians. Moreover, by comparing …


Diagnostique Sur La Santé Des Récifs Coralliens À Nosy Tanikely Et La Baie D’Ambanoro, Chelsea Nahill Apr 2009

Diagnostique Sur La Santé Des Récifs Coralliens À Nosy Tanikely Et La Baie D’Ambanoro, Chelsea Nahill

Independent Study Project (ISP) Collection

Pendant mon étude, les récifs coralliens à Nosy Tanikely et à la Baie d’Ambanoro étaient examinées avec le but de déterminer la condition de chaque récif et la biomasse des poissons. La durée de cette étude est de trois semaines et j’ai plongé en apnée quatre fois du 10 avril 2009 au 23 avril 2009, pour examiner les trois sites. Il y avait six stations au total, quatre pour examiner le premier site à Nosy Tanikely et deux dans la Baie d’Ambanoro, où sont le deuxième et troisième site. Utilisant les données collectées au long du transect de cent mètres, …


The Green Business Revolution, Jacob Martin, Penny Mcclendon, Brian Watson, Jimanna Watson Mar 2009

The Green Business Revolution, Jacob Martin, Penny Mcclendon, Brian Watson, Jimanna Watson

Undergraduate Research Conference

No abstract provided.


The Road To Leed Certification: Human Sciences South, Claire Collins, Kim Stockley, Whitney Kirkland Mar 2009

The Road To Leed Certification: Human Sciences South, Claire Collins, Kim Stockley, Whitney Kirkland

Undergraduate Research Conference

Leadership in Energy and Environmental Design for Existing Buildings a set number of voluntary standards. LEED EB focuses on the performance of a building rather than it’s design.


Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending March 31, 2009, Margaret N. Rees Mar 2009

Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending March 31, 2009, Margaret N. Rees

Wildlife Monitoring

Project 1. Relict Leopard Frog Monitoring, Management, and Research

  • Translocation field season has begun; eggs have been collected, tadpoles are being reared and some tadpoles have been released to an existing translocation site
  • Egg mass surveys for the season have been completed
  • Nocturnal surveys have begun
  • Sampling for the amphibian chytrid fungus conducted at multiple sites
  • Data transferal to County conducted this quarter
  • A modified annual work plan and timeline was provided for delivery to the County
  • All milestones and deliverables associated with the MSHCP project are on schedule

Project 2. Bald Eagle Winter Monitoring and Evaluation

  • Winter bald eagle …


The Economic Impact Of A Radiological Dispersal Device (Rde), Michael T. Lebrun Mar 2009

The Economic Impact Of A Radiological Dispersal Device (Rde), Michael T. Lebrun

Theses and Dissertations

While it will not cause the devastation of a nuclear weapon, the radiological dispersal event (RDE) is particularly dangerous in that it has the potential to cause major economic disruptions. The purpose of this research was to develop a generalized methodology that can be used to assess economic impacts, resulting from a (RDE), occurring in any location and across any industry. Currently, there is no universal approach for measuring the costs or economic impacts on businesses, or a common framework for conducting an economic impact for a RDE. The objective of this research was to aid in the RDE response …


Modeling Of Aircraft Deicing Fluid Induced Biochemical Oxygen Demand In Subsurface-Flow Constructed Treatment Wetlands, William J. Mclaughlin Mar 2009

Modeling Of Aircraft Deicing Fluid Induced Biochemical Oxygen Demand In Subsurface-Flow Constructed Treatment Wetlands, William J. Mclaughlin

Theses and Dissertations

Aircraft deicing is vital to safe operation in cold weather environments. Unfortunately, release of glycol-based aircraft deicing fluids (ADF) to waterways adjacent to airfields poses a significant environmental threat. The deicing fluids used at DoD airfields impart a high biochemical oxygen demand (BOD) when they enter waterways. The currently accepted conventional treatment is collection and transport of ADF-laden storm water to a publicly owned treatment works. The volume and BOD concentrations in the storm water often make this type of treatment impractical. Subsurface flow constructed treatment wetlands have been demonstrated to be effective in attenuating ADF-induced BOD. The models currently …


Fisheries Research Report No. 190 - Esd Reporting And Assessment Subprogram: Strategic Planning, Project Management And Adoption - Stage 2, R Fletcher Mar 2009

Fisheries Research Report No. 190 - Esd Reporting And Assessment Subprogram: Strategic Planning, Project Management And Adoption - Stage 2, R Fletcher

Fisheries Research Reports

Final FRDC Report – Project Number 2004/006

The second stage of the operation of the ESD Subprogram was successful, but compared to the focus during the first subprogram period, mostly in a consolidation manner rather than from the generation of significant new tools. This was necessary because it takes time to adopt and integrate significant changes to the methods of operation of agencies and industries. The policies must be there before any real activity can occur and we found that for the broader focused, cross fishery/cross sector applications of the framework, agencies were not in a position for much of …


Fisheries Research Contract Report No. 20 - Risk Assessment Of The Record Brook Inter-Basin Water Transfer Scheme To The Aquatic Fauna Of The Donnelly And Warren Rivers, M. De Graaf, D. L. Morgan, S. J. Beatty, C. W. Hugh Mar 2009

Fisheries Research Contract Report No. 20 - Risk Assessment Of The Record Brook Inter-Basin Water Transfer Scheme To The Aquatic Fauna Of The Donnelly And Warren Rivers, M. De Graaf, D. L. Morgan, S. J. Beatty, C. W. Hugh

Fisheries Research Contract Reports

Report to the Water Corporation of Western Australia

This report describes the fishes and freshwater crayfishes of the Donnelly and Warren River catchments and provides a risk assessment to these fauna of the proposed extraction of water from Record Brook (tributary of the Donnelly River) and subsequent transfer to Scabby Gully Dam (Warren River catchment). The proposed location of the structure in Record Brook is at the gauging station ~1 km upstream from the confluence with the Donnelly River. The project aims to divert peak flows in the winter and spring flow period, transferring around 500 ML each year. The …


Modeling West Antarctic Ice Sheet Growth And Collapse Through The Past Five Million Years, David Pollard, Robert M. Deconto Mar 2009

Modeling West Antarctic Ice Sheet Growth And Collapse Through The Past Five Million Years, David Pollard, Robert M. Deconto

ANDRILL Research and Publications

The West Antarctic ice sheet (WAIS), with ice volume equivalent to ~5 m of sea level, has long been considered capable of past and future catastrophic collapse. Today, the ice sheet is fringed by vulnerable floating ice shelves that buttress the fast flow of inland ice streams. Grounding lines are several hundred meters below sea level and the bed deepens upstream, raising the prospect of runaway retreat. Projections of future WAIS behavior have been hampered by limited understanding of past variations and their underlying forcing mechanisms. Its variation since the Last Glacial Maximum is best known, with grounding lines advancing …


Restoration Of Seagrass Habitat In Tampa Bay Using Large Manatee Grass (Syringodium Filiforme) Sod Units And A Discussion Of Planting Site Sediment Elevation Dynamics, Roger Johansson, Walt Avery, K. B. Hennenfent, J. J. Pacowta Feb 2009

Restoration Of Seagrass Habitat In Tampa Bay Using Large Manatee Grass (Syringodium Filiforme) Sod Units And A Discussion Of Planting Site Sediment Elevation Dynamics, Roger Johansson, Walt Avery, K. B. Hennenfent, J. J. Pacowta

Reports

The final project monitoring results show that the manatee grass transplanting effort was completed successfully. First, the donor site monitoring indicated that disturbances caused by harvesting were fully mitigated within the two year study period. Second, about 1300m2 of manatee grass were established in an area previously devoid of this species. Third, at the end of the study period the per unit area above ground biomass of the restored manatee grass in several of the planting plots was similar to, or may have exceeded the biomass of the donor grass at the time of harvest. Finally, several of the restored …


The Functions And Values Of Fringing Salt Marshes In Northern New England, Usa, Pamela A. Morgan, David M. Burdick, Frederick T. Short Feb 2009

The Functions And Values Of Fringing Salt Marshes In Northern New England, Usa, Pamela A. Morgan, David M. Burdick, Frederick T. Short

Environmental Studies Faculty Publications

Although large salt marshes of the northeastern United States have been studied extensively, very little is known about the smaller, fringing marshes in this area, despite the fact that they are a common habitat type. We compared the functions and values of five fringing salt marshes (FM) to those of five meadow marshes (MM) along the southern Maine/New Hampshire coast. Specifically we compared their primary production, soil organic matter content, plant diversity, sediment trapping ability and wave dampening properties. Also explored were the relationships between these functions and several physical characteristics at each site, including soil salinity, percent surface slope, …


Assessment Of Endocrine And Gonadal Condition Of Male Largemouth Bass From Lake Mead, Nevada, Reynaldo Patino, Steven L. Goodbred, Erik Orsak, Jill A. Jenkins, Michael R. Rosen Jan 2009

Assessment Of Endocrine And Gonadal Condition Of Male Largemouth Bass From Lake Mead, Nevada, Reynaldo Patino, Steven L. Goodbred, Erik Orsak, Jill A. Jenkins, Michael R. Rosen

Lake Mead Science Symposium

Las Vegas Bay (LVB) of Lake Mead receives combined flows of tertiary treated wastewater effluent, urban runoff, and groundwater from the Las Vegas metropolitan area. This study examined the potential for endocrine disrupting effects of these anthropogenic inputs on male largemouth bass (Micropterus salmoides). Adult male bass were collected at two sites within Lake Mead: Overton Arm (OA, reference site), and Las Vegas Bay (LVB). Post-spawn fish were collected in July 2007 (n = 6-10 per site) and pre-spawn fish in March 2008 (n = 13 per site). Post-spawn fish were characterized by regressed testes whereas pre-spawn bass had full-grown …


Lake Mead Science Symposium, January 13 An 14, 2009, Las Vegas, Nevada: Program, Kent Turner Jan 2009

Lake Mead Science Symposium, January 13 An 14, 2009, Las Vegas, Nevada: Program, Kent Turner

Lake Mead Science Symposium

Conference program for the 2009 Lake Mead Science Symposium. Includes abstracts of presentations, registration packet, exhibitor and sponsor information.


Lake Mead Symposium Plenary Schedule, Kent Turner Jan 2009

Lake Mead Symposium Plenary Schedule, Kent Turner

Lake Mead Science Symposium

Preliminary schedule for the symposium.


Walking Box Ranch Planning And Design Quarterly Progress Report: Period Ending April 10, 2009, Margaret N. Rees Jan 2009

Walking Box Ranch Planning And Design Quarterly Progress Report: Period Ending April 10, 2009, Margaret N. Rees

Walking Box Ranch

  • UNLV faculty and PLI scientists and interpreters participated in the 50% Design Concept Plan meeting, March 25-27 at UNLV-PLI and Walking Box Ranch (WBR), and provided comments toward proposed concepts for the museum and field, research, and training center at Walking Box Ranch.
  • UNLV is continuing to work with the Architectural Resources Group (ARG) under our SAT grant, to complete Master and Preservation Plans that will guide the SNPLMA-funded museum and field station projects now underway.
  • The National Historic Register nomination process, initiated under the SAT grant, was approved and WBR was placed on the NPS National Register of Historic …


A Century Of Climate Change For Fairbanks, Alaska, Gerd Wendler, Martha Shulski Jan 2009

A Century Of Climate Change For Fairbanks, Alaska, Gerd Wendler, Martha Shulski

School of Natural Resources: Faculty Publications

Climatological observations are available for Fairbanks, Interior Alaska, for up to 100 years. This is a unique data set for Alaska, insofar as it is of relatively high quality and without major breaks. Applying the best linear fit, we conclude that the mean annual temperature rose from -3.6°C to -2.2°C over the century, an increase of 1.4°C (compared to 0.8°C worldwide). This comparison clearly demonstrates the well-known amplification or temperature change for the polar regions. The observed temperature increase is neither uniform over the time period nor uniform throughout the course of a year. The winter, spring, and summer seasons …


In Situ Bioremediation Of Perchlorate In Soil And Groundwater, David Christopher Bertolacci Jan 2009

In Situ Bioremediation Of Perchlorate In Soil And Groundwater, David Christopher Bertolacci

Theses Digitization Project

This project conducted a technology assessment for in-situ bioremediation of perchlorate in soil and groundwater and assessed the suitability of electon donor amendments.


Demonstrating Sustainable Farm Management Systems. Final Report For Rcg05-Ord13, Tara Slaven, Francis Bright, Jodie Hawley, Joe Sherrard Jan 2009

Demonstrating Sustainable Farm Management Systems. Final Report For Rcg05-Ord13, Tara Slaven, Francis Bright, Jodie Hawley, Joe Sherrard

Natural resources research reports

The Ord River Irrigation Area (ORIA) has a 'flow through' irrigation system. That is, irrigation water is diverted from Lake Kununurra and any waste water from the irrigation system and farms flows directly back into the river downstream. This means that any sediment, nutrient or chemicals in tailwater from farms flows straight into the river.

The Ord Land and Water Management Plan 2000 specifies goals to improve surface water quality. The goals are to reduce the load of chemical and nutrient contamination and sediment in tailwater by 40 per cent.

The aim of this project was to develop and demonstrate …


Setting Targets For Resource Condition In Date Creek Catchment, Leon Van Wyk, Gregory Paul Raper Jan 2009

Setting Targets For Resource Condition In Date Creek Catchment, Leon Van Wyk, Gregory Paul Raper

Resource management technical reports

No abstract provided.


Setting Targets For Resource Condition In Doradine Catchment, Leon Van Wyk, Gregory Paul Raper Jan 2009

Setting Targets For Resource Condition In Doradine Catchment, Leon Van Wyk, Gregory Paul Raper

Resource management technical reports

No abstract provided.