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Articles 1021 - 1050 of 1357
Full-Text Articles in Natural Resources and Conservation
Effects Of Olfactory And Visual Predators On Nest Success And Nest-Site Selection Of Waterfowl In North Dakota, Jennifer Borgo
Effects Of Olfactory And Visual Predators On Nest Success And Nest-Site Selection Of Waterfowl In North Dakota, Jennifer Borgo
Green Canyon Environmental Research Area, Logan Utah
No abstract provided.
Droughtscape, Fall 2008, Kelly Smith
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
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
Variations In Stomatal Traits Of 14 Bornean Tree Species Growing On Soils With Different Moisture Contents In Lambir Hills National Park, Whitney Logan Cannon
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
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
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
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 …
Emissions Scenarios In The Face Of Fossil-Fuel Peaking, Robert J. Brecha
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 …
Assessment Of Coliform Bacteria From Point And Nonpoint Sources In The Las Vegas Wash, Susan O'Neill, Kumud Acharya
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
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
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
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.
Droughtscape, Summer 2008, Kelly Smith
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?
Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Quarterly Progress Report, April 1, 2008 To June 30, 2008, Margaret N. Rees
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
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
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
Western Australian Rangeland Monitoring System For Grasslands: Field Manual, Andrew Craig, Philip Thomas
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 …
Benthic Macroinvertebrates: An Analysis Of The Mashpee River
Benthic Macroinvertebrates: An Analysis Of The Mashpee River
Watershed Access Lab Projects
No abstract provided.
Burr’S Pond And Runnins River – An Annual Watershed Survey 2008
Burr’S Pond And Runnins River – An Annual Watershed Survey 2008
Watershed Access Lab Projects
AP Biology students at Seekonk High School are required to complete an independent research project to fulfill the Ecology unit of the course during the summer prior to the course. Students must apply what they learned in their readings to a local ecosystem, Burr’s Pond which is attached to the Runnins River. Students spend time at the pond area during the summer documenting organisms, evidence of population dynamics, animal behavior, trophic levels, nutrient cycling, etc. Students put together a Burr’s Pond Summer Field Research Project Portfolio to be submitted on the first day of school. Student projects are displayed at …
Comparative Nutrient Data For Two Locations On The Marstons Mills River
Comparative Nutrient Data For Two Locations On The Marstons Mills River
Watershed Access Lab Projects
On October 30, 2007, we deployed water samplers at two locations along the Marstons Mills River: River Road and Hyrdo Dam/Route 28. We programmed a Sigma at each location to take a water sample each hour for 24 hours, to determine the amount of dissolved nutrients in the water in the course of one day. When compared to the discharge at each site, we found that the Hydro Dam location moved nearly 117 000 000 liters of water, 10 000 grams of phosphorus, and 25 000 grams of nitrogen-nitrate each day. Only a short distance upstream, the River Road location …
The Effect Of The Middleboro Wastewater Treatment Plant On The Water Quality Of The Nemasket River
The Effect Of The Middleboro Wastewater Treatment Plant On The Water Quality Of The Nemasket River
Watershed Access Lab Projects
Students studied the effect of the Middleboro Waste Treatment Plant on the water quality of the Nemasket River. Students sampled for DO, temperature, pH, nutrients and macroinvertebrates. Sampling sites included the reference site at Rte 105 and the impact site at Murdock Street in Middleboro, MA. A recovery site was not sampled due to distance and time constraints. Students toured the treatment plant and interviewed Mr. Joseph Ciaglo to learn how the plant operated. Students learned that orthophosphates are removed using ferric chloride to precipitate the phosphate. The analysis of samples for orthophosphate showed that the concentrations at Murdock Street …
Benthic Macroinvertebrates: An Analysis Of The Quashnet River
Benthic Macroinvertebrates: An Analysis Of The Quashnet River
Watershed Access Lab Projects
No abstract provided.
River Watch 2008
Watershed Access Lab Projects
SLIDE 3: The Indian Head River forms the Northern Border of the Town of Hanson, Other towns that impact the water quality directly in the areas of study include Pembroke to the east and Hanover to the north, northeast. There are approximately 8 miles between our upstream site near Factory Pond and our downstream site at Ludham’s Ford or as other’s call it, Curtis’ Crossing. The river covers about eight acres of land in this area and was most likely used as a fishing and travel spot for the Wompatuck Indians.
A guide named James Luddam carried Governor Winthrop across …
Abbott Run Annual Study 2008
Watershed Access Lab Projects
The purpose of our study was to make certain that Abbott Run met the Massachusetts water quality standards of a Class A river. We are concerned that the Abbott Run remains a Class A river because it is the source of the drinking water for Pawtucket, Rhode Island.
Abbott Run is located in the western section of North Attleboro within the Blackstone River Watershed. It is bordered by Rhode Island to the west, Plainville to the north and Attleboro to the south. The watershed section in North Attleboro is approximately four square miles.
Land use is predominately single-family, residential except …
Fore! The Effect Of Poquoy Brook Golf Course On The Water Quality Of Poquoy Brook
Fore! The Effect Of Poquoy Brook Golf Course On The Water Quality Of Poquoy Brook
Watershed Access Lab Projects
The students studied the influence of Poquoy Brook Golf Course on the water quality of Poqouy Brook. The headwaters of Poquoy Brook are located in wetlands. The brook flows through a cranberry bog prior to entering the golf course at the upstream site (Hole 4) on Southworth Street, Lakeville, MA. It passes through the golf course to the impact site at Hole 17. After passing under the railroad bridge it flows through a short segment of wetlands to the recovery site at the Dias residence on Taunton Street. Although all tested parameters were in normal ranges, except for % DO …
Droughtscape, Spring 2008, Kelly Smith
Droughtscape, Spring 2008, Kelly Smith
DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)
San Angelo, April 24
Winter Sees Little Change in U.S. Drought
News Stories Reveal Array of Mitigation Strategies
NIDIS Wants You!
Sea Surface Temperatures Can Help Predict Drought
About DroughtScape
Recent Travels
Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Progress Report, Period Ending: April 1, 2008, Margaret N. Rees
Limnological Studies
Hiring: A decision is anticipated in the upcoming weeks regarding the hiring of a limnologist. Two candidates were selected from among three qualified applicants for telephone interviews; they were subsequently interviewed in-person.
Project 1: Review of the draft Boulder Basin Adaptive Management Plan is on-going. Meetings of the Systems Conveyance and Operations Program (SCOP) Technical Advisory Teams were attended.
Project 2: Development of a white paper expressing the joint needs of the entities involved in Water 2025 projects is on-going; scientific review of data and reports related to bacteria in high-use areas of Lake Mead is underway.
Project 3: Discussions …
Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering January 1 – March 31, 2008, Margaret N. Rees
Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering January 1 – March 31, 2008, Margaret N. Rees
Get Outdoors Nevada
- The number of records in the volunteer database increased 10% since the end of last quarter. At the end of this quarter, the database contains 4,866 records.
- Website activity increased by 1% from last quarter; it received an average of 83,326 hits per month, with an average of 9,240 pages viewed per month.
- Two hundred college students learned about the Interagency Volunteer Program during the program’s first open house tour.
- Winter volunteer training was completed
- Spring volunteer training is scheduled.
- Five volunteers who attended the first event assistant training work as event assistants.
- The database manager updated and archived records …
Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Quarterly Progress Report, January 1— March 31, 2008, Margaret N. Rees
Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Quarterly Progress Report, January 1— March 31, 2008, Margaret N. Rees
Vegetation Monitoring
Executive Summary
- The Weed Sentry program surveyed 104 miles of transportation corridors on federal land in Clark County for incipient populations of exotic plants.
- Seven manuscripts attained in-press or published status and two manuscripts were submitted for review this quarter. Among other in-press 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).
- Staff delivered four presentations this quarter at conferences or at agency meetings. Twenty-six Las Vegas bearpoppy sites were assessed …
Multi-Ideal-Adic Completions Of Noetherian Rings, William J. Heinzer, Christel Rotthaus, Sylvia Wiegand
Multi-Ideal-Adic Completions Of Noetherian Rings, William J. Heinzer, Christel Rotthaus, Sylvia Wiegand
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Let R be a commutative ring with identity. A filtration on R is a decreasing sequence {In}∞ n=0 of ideals of R. Associated to a filtration is a well-defined completion R ∗ = l←i−mn R/In and a canonical homomorphism ψ : R → R ∗ [13, Chap. 9]. If ∞ n=0 In = (0), then ψ is injective and R may be regarded as a subring of R ∗ [13, p. 401]. In the terminology of Northcott, a filtration {In}∞ n=0 is multiplicative if I0 = R and InIm ⊆ In+m for all m ≥ 0 and n ≥ 0 …