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Articles 6301 - 6330 of 7516

Full-Text Articles in Environmental Monitoring

Droughtscape, Fall 2008, Kelly Smith Oct 2008

Droughtscape, Fall 2008, Kelly Smith

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

Washington Workshops Scheduled for November

Look for Warm West, Rainy Gulf, Easing Drought

New Drought Monitor Authors Profiled

Drought Impact Awareness Growing: Weather Forecast Offices, Geographers Highlight Issue

NDMC Takes on New Projects

Hundreds+ See NDMC at Ag Trade Show

NDMC Welcomes New Employees


Droughtscape, Fall 2008, Kelly Smith Oct 2008

Droughtscape, Fall 2008, Kelly Smith

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

Washington Workshops Scheduled for November

Look for Warm West, Rainy Gulf, Easing Drought

New Drought Monitor Authors Profiled

Drought Impact Awareness Growing: Weather Forecast Offices, Geographers Highlight Issue

NDMC Takes on New Projects

Hundreds+ See NDMC at Ag Trade Show

NDMC Welcomes New Employees


What The Fish Is Going On Here? Are Regulations Being Followed At The Ver-O-Peso Market In Belém, Para?, Neil Thompson Oct 2008

What The Fish Is Going On Here? Are Regulations Being Followed At The Ver-O-Peso Market In Belém, Para?, Neil Thompson

Independent Study Project (ISP) Collection

Since the commercialization of the amazonian fishery in the early 1970´s there have been major problems with enforcement of minimum capture length laws and regulations. It has been well documented with species such as tambaqui (Collosum macroponum) and mapara (Hypopthalamus edentates) that juveniles and pre-adults are being targeted by fishermen. This has led to a situation where most of the individuals present in fish markets are undersized and illegal according to IBAMA regulations. The majority of the research done on undersized illegal market fish has focused on markets in Manaus, Tefé and Santarem. This study seeks to find out if …


Effect Of A Water Treatment Bmp On Nutrient Spiraling And Leaf Litter Breakdown In An Urban Stream, Megan Leclair Wheeler Oct 2008

Effect Of A Water Treatment Bmp On Nutrient Spiraling And Leaf Litter Breakdown In An Urban Stream, Megan Leclair Wheeler

Theses and Dissertations

Alterations to stream conditions caused by urbanization can compromise valuable ecosystem services, such as nutrient attenuation and carbon processing. A best management practice (BMP) water facility was installed to restore an impaired urban stream in Columbus, GA. This study was conducted to determine the effect of this BMP on nutrient spiraling and leaf litter decomposition in a 2 km stretch of Weracoba Creek. I hypothesized the BMP would (1) reduce leaf mass loss over time and (2) interfere with nutrient concentrations and uptake lengths. I characterized leaf litter decomposition using tulip tree leaves {Liriodendron tulipifera) in 1mm mesh bags deployed …


Designing More Effective Air Quality Advisories, Justin Olexy Oct 2008

Designing More Effective Air Quality Advisories, Justin Olexy

Environmental Science and Management Professional Master's Project Reports

Background: There is increasing concern about the impact of air quality on human health in urban environments and how to best reduce impacts through public policies. An NSF Biocomplexity Project - "Feedbacks between Urban Systems and the Environment" (FUSE), led by Portland State University, studies the human feedbacks and responses to air quality and heat advisories through data collected in city-wide phone surveys in Portland, OR and Houston, TX. On days when ozone levels are predicted to exceed air quality standards, regulatory agencies issue air quality advisories which ask residents to reduce certain air polluting behaviors such as driving …


Variations In Stomatal Traits Of 14 Bornean Tree Species Growing On Soils With Different Moisture Contents In Lambir Hills National Park, Whitney Logan Cannon Oct 2008

Variations In Stomatal Traits Of 14 Bornean Tree Species Growing On Soils With Different Moisture Contents In Lambir Hills National Park, Whitney Logan Cannon

Department of Environmental Studies: Undergraduate Student Theses

The goal of this study was to look at variations in stomatal traits of tree species on soils with different moisture contents and fertility at Lambir Hills National Park. Stomates are important structures on the surface of leaves that mediate conduction of moisture and gassesin and out of the leaf. If stomatalt raits are important for regulation, then there should be variation in stomatal traits in regards to their soil specialization. The 14 Borneant ree speciess ampledi ncluded6 sandyl oam specialists6, clay specialistsa nd 2 generalistsfo und growing with equald istributionso n both sandyl oam and clay. Confocal microscopy was …


Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering July 1- September 30, 2008, Margaret N. Rees Sep 2008

Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering July 1- September 30, 2008, Margaret N. Rees

Get Outdoors Nevada

  • The number of records in the volunteer database increased 10% since June, 2008. The database now contains 5,706 records.
  • Website activity decreased, recording an average of 48,361 hits per month, a decrease of 28% from last quarter, with an average of 4,925 pages viewed per month.
  • Fall volunteer training has been scheduled.
  • Fall events have been scheduled.


Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending September 30, 2008, Margaret N. Rees Sep 2008

Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending September 30, 2008, Margaret N. Rees

Limnological Studies

Project 1: Technical input has been provided at eight advisory team meetings attended this quarter. Broad, overarching “Issues of Concern” developed for the Boulder Basin Adaptive Management Plan are currently under review by Drs. David Wong and Shawn Gerstenberger. A Selenium Management Plan is also under review.

Project 2: Data collected by the Southern Nevada Water Authority has been synthesized to summarize bacteria counts in high-use areas of Lakes Mead and Mohave. This information will be documented and interpreted for management use in a formal report in the upcoming quarter.

Project 3: A draft document titled “Suggested Standard Methods for …


Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Year-End Progress Report, October 1, 2007 To September 30, 2008, Margaret N. Rees Sep 2008

Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Year-End Progress Report, October 1, 2007 To September 30, 2008, Margaret N. Rees

Vegetation Monitoring

Executive Summary

  • The Weed Sentry program surveyed over 335 miles and 2,610 acres of transportation corridors on federal land in Clark County for incipient populations of exotic plants.
  • 18 manuscripts attained in-press or published status and one manuscript was submitted for review this year. Among published manuscripts, are one documenting Sahara mustard germination patterns (Western North American Naturalist), one assessing exotic species distributions in Clark County (Environmental Monitoring and Assessment), and another is a synthesis of burro effects on Mojave Desert vegetation (Environmental Management), and one assessing vegetation in grassy remnants of the Las Vegas Valley (Desert Plants)
  • Staff delivered …


Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending September 30, 2008, Margaret N. Rees Sep 2008

Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending September 30, 2008, Margaret N. Rees

Wildlife Monitoring

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

  • Completion of translocation and augmentation efforts for 2008
  • Summer egg mass surveys completed
  • Coordination is ongoing to identify potential translocation sites near Moapa
  • Habitat improvements coordinated for Bighorn Sheep Spring
  • Annual Project Review Presentation provided to Clark County
  • All milestones and deliverables associated with the MSHCP project are on schedule

Project 2. Bald Eagle Winter Monitoring and Evaluation

  • Initial habitat suitability models and maps developed
  • Annual Project Review and Presentation given to Clark County
  • All MSHCP milestones and deliverables associated with this project are on schedule

Project 3. Peregrine Falcon Monitoring …


Emissions Scenarios In The Face Of Fossil-Fuel Peaking, Robert J. Brecha Sep 2008

Emissions Scenarios In The Face Of Fossil-Fuel Peaking, Robert J. Brecha

Physics Faculty Publications

Emissions scenarios used by the Intergovernmental Panel on Climate Change (IPCC) are based on detailed energy system models in which demographics, technology and economics are used to generate projections of future world energy consumption, and therefore, of greenhouse gas emissions. We propose in this paper that it is useful to look at a qualitative model of the energy system, backed by data from short- and medium-term trends, to gain a sense of carbon emission bounds. Here we look at what may be considered a lower bound for 21st century emissions given two assumptions: first, that extractable fossil-fuel resources follow the …


Changes In Gambel Oak Densities In Southwestern Ponderosa Pine Forests Since Euro-American Settlement, Scott R. Abella, Peter Z. Fule Sep 2008

Changes In Gambel Oak Densities In Southwestern Ponderosa Pine Forests Since Euro-American Settlement, Scott R. Abella, Peter Z. Fule

Public Policy and Leadership Faculty Research

Densities of small-diameter ponderosa pine (Pinus ponderosa) trees have increased in southwestern ponderosa pine forests during a period of fire exclusion since Euro-American settlement in the late 1800s. However, less well known are potential changes in Gambel oak (Quercus gambelii) densities during this period in these forests. We reviewed published literature to summarize changes in oak density in ponderosa pine forests over the past 140 years and evaluated the possibility that large-diameter oaks have decreased in density. All nine studies examining oak density changes found that densities of small-diameter oaks have escalated. Increases ranged from 4- to more than 63-fold. …


Dispersal Limitation And Climate-Related Environmental Gradients Structure Microcrustacean Composition In Freshwater Lakes, Ellesmere Island, Canada, Angela L. Strecker, Rebecca Milne, Shelley E. Arnott Aug 2008

Dispersal Limitation And Climate-Related Environmental Gradients Structure Microcrustacean Composition In Freshwater Lakes, Ellesmere Island, Canada, Angela L. Strecker, Rebecca Milne, Shelley E. Arnott

Environmental Science and Management Faculty Publications and Presentations

Dramatic environmental change is expected in the Arctic, yet little is known about the occurrence and community composition of microcrustaceans in Arctic lakes and how this will be influenced by future environmental change. We sampled and calculated relative abundances of microcrustacean species in 54 lakes on Ellesmere Island, Canada. New species records on Ellesmere Island included Daphnia umbra, Tachidius discipes, and Artemeopsis stefanssoni. Daphnia middendorffiana/tenebrosa was the most common taxon and often dominated microcrustacean assemblages, likely a result of its pigmentation, which offers resistance to ultraviolet radiation. Species richness was positively associated with nutrients, dissolved organic carbon (DOC), temperature, calcium, …


Assessment Of Coliform Bacteria From Point And Nonpoint Sources In The Las Vegas Wash, Susan O'Neill, Kumud Acharya Aug 2008

Assessment Of Coliform Bacteria From Point And Nonpoint Sources In The Las Vegas Wash, Susan O'Neill, Kumud Acharya

Undergraduate Research Opportunities Program (UROP)

This project focuses on an assessment of coliform bacteria from point and non point sources in Las Vegas Wash. Correlations between land use related runoffs, nutrients and organic matter loading and total coliform will be studied. Data will be collected for both daily low and high flow events. Sampling locations will cover all major land use types such as golf course, hotels, hospitals, residential areas, etc., at both the main Wash and its tributaries.


Geology And Hydrology Of Karst In West-Central And North-Central Florida, Lee J. Florea Aug 2008

Geology And Hydrology Of Karst In West-Central And North-Central Florida, Lee J. Florea

Earth, Environmental, and Atmospheric Sciences Faculty Publications

The state of Florida is blessed with the highest density of large springs in North America and hundreds of smaller springs where the water from limestone aquifers returns to the surface (Scott et al., 2004). Spectacular underwater caves supply water to these springs. Lesser known are the equally fantastic air-filled caves of Florida and South Georgia (Florea, 2006; Lane, 1986). This paper features these underwater and airfilled caves, explores the impact of changes in sea level on karst in this near-coastal environment, and establishes several geologic and hydrologic characteristics that distinguish karst in the limestones of the southeast from karst …


Wavelet Analysis For Aboveground Biomass Estimate In Temperate Deciduous Forests, Xiaofang Wei Aug 2008

Wavelet Analysis For Aboveground Biomass Estimate In Temperate Deciduous Forests, Xiaofang Wei

All-Inclusive List of Electronic Theses and Dissertations

The ever-increasing concentration of anthropogenic greenhouse gases (C02, CH4, and CFCs) has been identified as a likely (greater than 90% confidence) cause of the observed increase of global mean temperatures since the mid-20th century (IPCC, 2007). The effect of human-induced climate change could be unprecedented and far-reaching. Carbon sequestration into trees and forests is an effective and inexpensive way for mitigating the C02 level in the atmosphere. Hence, accurate measurement of biomass will be of great importance to global carbon cycle and climate change. This study performed a wavelet-based forest aboveground biomass estimation approach in a temperate deciduous forest, the …


Legislative Committee On Public Lands, Margaret N. Rees Jul 2008

Legislative Committee On Public Lands, Margaret N. Rees

Presentations (PLI)

The Public Lands Institute is dedicated to strengthening the national fabric that is essential for the protection, conservation, multiple use, and management of public lands.


Nebraska Water Map Jul 2008

Nebraska Water Map

Nebraska Water Center: Administrative Materials

Nebraska Water is a full-color, 24"x36" poster, that is appropriate for educational use. The information presented on the maps is the best available as of July 2008. The content and level of detail of each map is based on available space and map scale.


Droughtscape, Summer 2008, Kelly Smith Jul 2008

Droughtscape, Summer 2008, Kelly Smith

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

VegDRI Expands West

Spring Rains Ease Drought But CA Still Dry

Scholar Donates Books

NDMC Welcomes Employees Bathke, Nothwehr

Latest Workshop Info Up

State Lawmakers to Focus on Drought Planning

Decadal Variation -- Clues to Droughts and Floods?


Benthic Biological Monitoring Program Of The Elizabeth River Watershed (2007), Daniel M. Dauer Jul 2008

Benthic Biological Monitoring Program Of The Elizabeth River Watershed (2007), 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 ninth year of sampling in 2007. 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 …


Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Quarterly Progress Report, April 1, 2008 To June 30, 2008, Margaret N. Rees Jul 2008

Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Quarterly Progress Report, April 1, 2008 To June 30, 2008, Margaret N. Rees

Vegetation Monitoring

Executive Summary

  • The Weed Sentry program surveyed over 182 miles of transportation corridors on federal land in Clark County for incipient populations of exotic plants.
  • Five manuscripts attained published or in-press status this quarter. The published manuscripts are (1) assessing vegetation in grassy remnants of the Las Vegas Valley (Desert Plants), (2) assessing exotic species distributions in Clark County (Environmental Monitoring and Assessment), (3) a synthesis of burro effects on Mojave Desert vegetation (Environmental Management), and (4) examining canopy-tree influences along a soil parent material gradient in (Journal of the Torrey Botanical Society).
  • Staff delivered eight presentations this quarter at …


Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Annual Progress Report, Period Covering July 1, 2007 - June 30, 2008, Margaret N. Rees Jun 2008

Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Annual Progress Report, Period Covering July 1, 2007 - June 30, 2008, Margaret N. Rees

Get Outdoors Nevada

  • The Interagency Volunteer Program (IVP) completed a total of 25 volunteer events contributing a total of 7,270.5 volunteer hours.
  • A total of 186 volunteers completed orientations and trainings with the IVP.
  • In January, the database manager updated and archived records in the Volgistic data base.
  • Since January, the Volgistic database has increased the number of records by 15% containing a total 5,171 records.
  • The first annual IVP bus tour has been completed.
  • The first event assistant training has been completed. A total of five event assistants have assisted event coordinators at six different volunteer events.
  • Website activity this year averaged …


Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering April 1- June 30, 2008, Margaret N. Rees Jun 2008

Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering April 1- June 30, 2008, Margaret N. Rees

Get Outdoors Nevada

  • The number of records in the volunteer database increased 6% since January 1, 2008. The database now contains 5,171 records.
  • Website activity decreased, recording an average of 67,180 hits per month, a decrease of 19% from last quarter, with an average of 6,618 pages viewed per month.
  • Spring volunteer training has been completed • Fall events have been scheduled.
  • The first Interagency Volunteer Program Bus Tour has been completed.
  • The new seed collection events have been completed


Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending June 30, 2008, Margaret N. Rees Jun 2008

Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending June 30, 2008, Margaret N. Rees

Wildlife Monitoring

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

  • Translocation program completed this quarter at current active translocation sites.
  • Egg mass surveys at Blue Point Spring conducted approximately weekly; two additional egg massed collected from site for head-starting.
  • Frogs released at Blue Point and Rogers from egg masses collected at Blue Point in March and April, further augmentations planned.
  • Spring nocturnal surveys completed.
  • Coordination for potential translocation sites on BLM lands ongoing.
  • Habitat improvements coordinated and conducted at one new translocation site on BLM lands in the Gold Butte; site received frogs in April.
  • All milestones and deliverables associated with …


Western Australian Rangeland Monitoring System For Grasslands: Field Manual, Andrew Craig, Philip Thomas Jun 2008

Western Australian Rangeland Monitoring System For Grasslands: Field Manual, Andrew Craig, Philip Thomas

Bulletins 4000 -

Western Australian Rangeland Monitoring System (WARMS) sites are designed to provide defined areas for repeated photography and collection of vegetation composition, shrub/tree cover and landscape function (soil surface assessment) data. This manual defines the procedures for installing and monitoring WARMS sites in the grasslands of northern Western Australia. It provides a documented reference of site stratification at regional scale, and site allocation at station (property) scale. Different procedures apply for sites in the shrublands of the southern pastoral zone. WARMS is designed to be interpreted at the vegetation type or regional scale, rather than lease (station) scale. Information gathered is …


Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Annual Report, Period Ending May 31, 2008, Margaret N. Rees May 2008

Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Annual Report, Period Ending May 31, 2008, Margaret N. Rees

Limnological Studies

Hiring: Limnologist Dr. Wai Hing (David) Wong was hired and officially reported to work on 5/15/2008.

Project 1 and Project 2: Dr. Wong has commenced work on Projects 1 and 2.

Project 3: Dr. Wong has commenced work on Project 3. A comprehensive zebra/quagga mussel bibliography has been completed and published to the 100th Meridian Web site. Six interagency, multi-disciplinary quagga mussel meetings have been held. A quagga mussel substrate project has been initiated and, through the coordination efforts of this project, two other studies have been selected and refined to help determine the ecological impacts of quagga mussel infestation …


The Guacamole Fund Presents... May 2008

The Guacamole Fund Presents...

Native American Forum on Nuclear Issues

Special Bonnie Raitt Benefit Tickets


Brunswick Me: De-Militarizing The Bnas, Anne Holland, Brett Richardson, Richard Barringer May 2008

Brunswick Me: De-Militarizing The Bnas, Anne Holland, Brett Richardson, Richard Barringer

Planning

Closure of the Brunswick Naval Air Station in 2011 will have profound economic impacts on the entire mid-coast Maine region of Maine, with an estimated loss of 6,500 jobs and $330 million annual income. Throughout the Base Realignment and Closure process, Brunswick, the region, and the State of Maine followed federal rules and developed the federally-funded Brunswick Local Redevelopment Authority (BLRA) to plan for reuse of the 3300 acre base. In its planning process, the BLRA adhered to a number of well thought-out Guiding Principles, including the use of extensive public participation and the consideration of “smart growth” principles and …


Herbarium Infrastructure Development And Ecological Applications Of Specimens Using Geographic Information Systems, Ryan Joseph Miller May 2008

Herbarium Infrastructure Development And Ecological Applications Of Specimens Using Geographic Information Systems, Ryan Joseph Miller

Masters Theses and Doctoral Dissertations

Geographic Information Systems (GIS) allow for herbarium data to be used for new scientific research and also for the greater efficiency of the traditional uses of herbaria. My research uses the resources of both the herbarium at the University of Tennessee at Chattanooga (UCHT) and partnering herbaria of the Southeastern Regional Network of Expertise and Collections (SERNEC) to examine methods of incorporating new GIS technology into a functional infrastructure in order to enhance botanical research. Evaluations were performed on database and georeferencing software for use in the development of a pilot, GIS-enabled website used to query herbaria specimen information. Using …


Benthic Macroinvertebrates: An Analysis Of The Mashpee River Apr 2008

Benthic Macroinvertebrates: An Analysis Of The Mashpee River

Watershed Access Lab Projects

No abstract provided.