Natural Resources and Conservation Commons^™

Fisheries Research Report No. 168 - Sustainable Development Of Barramundi Cage Aquaculture At Lake Argyle., Brett Glencross, S. Percival, B. Jones, J Hughes

Fisheries Research Reports

Final FRDC report and KSRP report - Project 2003/026

A preliminary sensory evaluation study was conducted to confirm the presence of a taint issue. Prior to this the issue was reliant on purchaser feedback and was not verified independently. To examine the issue of flavour taint a series of barramundi samples were collected from Lake Argyle (purged and unpurged), wild (estuarine) and marine farmed barramundi were assessed. No significant differences in flavour attributes and/or acceptability attributes were detected between the wild and farmed barramundi, provided the barramundi was either marine-farmed or purged. However, it was determined that a clear “muddy” …

Fisheries Research Report 167 - Digital Video Techniques For Assessing Population Size Structure And Habitat Of Greenlip And Roe's Abalone., A.M. Hart, Frank Fabris

Fisheries Research Reports

Final FRDC report- Project 2002/079

A digital video image (DVI) stock monitoring programme was developed for the Haliotis laevigata and H. roei abalone fisheries in Western Australia. The program used industry divers to collect stock density and length-frequency data using digital video from 51 survey sites across the fishery, while image extraction, data processing and storage is carried out by research staff. Training videos, DVDs, and a comprehensive suite of experimental tests on both abalone species were utilised to achieve this outcome. Comparisons between DVI data collected by industry divers, and fishery independent survey (FIS) data showed mean legal sized …

Concurrent Panel Session 1: Sustainability In Community Development And Architecture In Las Vegas, Alfredo Fernandez-Gonzalez, Craig Galati, Mary Kay Peck, Jeff Roberts, Suzanne Sanders, Richard Serfas

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

Moderator: David Frommer, AIA, UNLV Planning & Construction Scribe: Michael Spurr, UNLV Department of History Conference white paper & Full summary of panel session, 5 pages

Concurrent Panel Session 1: Environmental Sustainability And Las Vegas, Dale A. Devitt, David E. James, Patricia Mulroy, Alan O'Neill, Thomas C. Piechota, Doug Selby, Krystyna Anne Stave, Michael Yackira, Bruce Turner

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

Moderator: Dr. Stan Smith, UNLV School of Life Sciences Scribe: Crystal Jackson, UNLV Department of Sociology Conference white paper & Full summary of panel session, 6 pages

Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering July 6 – Oct. 5, 2007, Margaret N. Rees

Anti-littering Programs

• Don’t Trash Nevada website traffic remains strong despite no separate marketing.

• Project Manager Douglas Joslin has been assisting the IVP team due to the resignation of Donna Grady.

• A new ad created in cooperation with Republic Services of Southern Nevada appeared in five different View newspapers in July.

• The messaging campaign year two plan is in development and will be ready in November.

• Forty-three people took the anti-litter pledge this quarter, bringing the total number of pledges to 431.

• Planning for the Don’t Trash Nevada exhibit at the Las Vegas Natural History Museum continued …

Interactions Across Spatial Scales Among Forest Dieback, Fire, And Erosion In Northern New Mexico Landscapes, Craig D. Allen

School of Natural Resources: Faculty Publications

Ecosystem patterns and disturbance processes at one spatial scale often interact with processes at another scale, and the result of such cross-scale interactions can be nonlinear dynamics with thresholds. Examples of cross-scale pattern-process relationships and interactions among forest dieback, fire, and erosion are illustrated from northern New Mexico (USA) landscapes, where long-term studies have recently documented all of these disturbance processes. For example, environmental stress, operating on individual trees, can cause tree death that is amplified by insect mortality agents to propagate to patch and then landscape or even regional-scale forest dieback. Severe drought and unusual warmth in the southwestern …

Baselines Newsletter, No. 1, Fall 2007, University Of Colorado Boulder. Natural Resources Law Center

Baselines: The Natural Resources Law Center Newsletter (2007-2011)

No abstract provided.

Why Logging? A Value Assessment Of Forestry Uses In The Huon Forest District, Ryan Bailey

Independent Study Project (ISP) Collection

The Huon Forest District comprises 762,800 hectares of forests in southwest Tasmania, with 128,900 hectares of that total designated as state forest managed by Forestry Tasmania. These forests are used primarily for wood production, although tourism, carbon storage, leatherwood honey and the specialty timbers industry are competing for access to these forests. This study examines the socio-economic values of these uses and determines whether the Huon Forest District is being utilized efficiently.

To accomplish this, an extensive literature review of past research was conducted. This information supplemented 7 semi-structured interviews that were conducted with experts from the forestry industry, tourism …

Fisheries Research Report No. 166 - Stock Enhancement Of Haliotis Laevigata In Western Australia - A Preliminary Assessment, Anthony M. Hart, Frank Fabris, Sabine Daume

Fisheries Research Reports

A preliminary assessment of stock enhancement of Haliotis laevigata (Greenlip abalone) in Western Australia was undertaken with the release of 6,000 abalone near Augusta in 2004. The objective of the project was to obtain quantitative data on the likelihood of enhancement, as an additional management tool to TACs and size-limits, being successful in natural habitats in Western Australia. Baseline surveys coupled with an assessment of growth and survival of released 1+ and 2 + animals were undertaken at 12 sites within Flinders Bay, Augusta. Overall survival was 19% for 1+ age abalone and 27% for 2+ animals after 9 months. …

To Live With The Sea: Community-Based Management Of Marine Resources In Southwest Madagascar, Hannah Pitt

Independent Study Project (ISP) Collection

“God intended us to fish, and we will fish until the end,” the elderly Vezo fisherman explained, shrugging his shoulders as if in resignation to an unavoidable truth (Niry). For a people whose history, culture, and economy have revolved around the sea for generations, the idea of preservation is just not palatable, he seemed to be saying. The momentum of tradition, in other words, cannot be stopped. Yet in 23 Vezo fishing villages in the region of Andavadoaka, along the southwest coast of Madagascar, communities have collectively established seasonal and permanent restrictions on critical fishing grounds that together make up …

Droughtscape, Fall 2007, National Drought Mitigation Center

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

Fall 2007 Outlook

Diverse Impacts Reported in Summer of 2007

Decadal Climate Cycles Hold Predictive Potential

Drought Experts Take Roadmap to Congress

NDMC Research Updates

Implementing Uganda’S National Wetlands Policy: A Case Study Of Kabale District, Sophie Glass

Independent Study Project (ISP) Collection

Uganda’s “National Policy for the Conservation and Management of Wetland Resources” was launched in 1995 to promote the protection of Uganda’s wetlands in order to sustain their ecological and socioeconomic functions. Despite the formal policy, wetlands continue to be drained and converted. This report examines factors that account for the divide between the National Wetlands Policy and reality. Six weeks were spent researching the challenges associated with implementing the National Wetlands Policy. Kabale District was used as a case-study to better understand the issues that institutions and stakeholders face when trying to abide by the precepts of the policy. Rapid …

Ground Water Dependence Of Endangered Ecosystems: Nebraska’S Eastern Saline Wetlands, F. Edwin Harvey, Jerry F. Ayers, David C. Gosselin

School of Natural Resources: Faculty Publications

Many endangered or threatened ecosystems depend on ground water for their survival. Nebraska’s saline wetlands, home to a number of endangered species, are ecosystems whose development, sustenance, and survival depend on saline ground water discharge at the surface. This study demonstrates that the saline conditions present within the eastern Nebraska saline wetlands result from the upwelling of saline ground water from within the underlying Dakota Aquifer and deeper underlying formations of Pennsylvanian age. Over thousands to tens of thousands of years, saline ground water has migrated over regional scale flowpaths from recharge zones in the west to the present-day discharge …

Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Year-End Progress Report, October 1, 2006 To September 30, 2007, Margaret N. Rees

Vegetation Monitoring

Executive Summary

• The Weed Sentry program surveyed more than 750 miles of federal lands in Clark County for invasive, exotic plant species.
• Weed Sentry also removed more than 600,000 individual invasive plants from federal
  lands. These removals represent pro-active efforts that may have forestalled large
  infestations difficult and costly to eradicate.
• In response to a request by the manager of the Fish and Wildlife Service Desert National
  Wildlife Refuge, a major effort of surveying springs for plant community composition
  and invasive plants provided unique knowledge services by the Weed Sentry program.
  No such baseline information existed for the Sheep Range. …

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

Get Outdoors Nevada

• The number of records in the volunteer database increased 11% over last quarter. The database now contains 4,343 records.
• Website activity increased, recording an average of 121,313 hits per month, an increase of 31% from last quarter, with an average of 11,475 pages viewed per month.
• Volunteer fall training has been scheduled, developed and publicized.
• Three National Public Land Day Events are planned.
• Volunteer recognition banquet event is being planned and developed.
• Transition in the program manager position took place. The position is currently filled with an interim volunteer program associate.

Soil Carbon And Tree Litter Dynamics In A Red Cedar–Scotch Pine Shelterbelt, Thomas J. Sauer, Cynthia A. Cambardella, James R. Brandle

School of Natural Resources: Faculty Publications

Carbon sequestration in the woody biomass of shelterbelts has been investigated but there have been no measurements of the C stocks in soil and tree litter under this agroforestry practice. The objective of this study was to quantify C stored in surface soil layers and tree litter within and adjacent to a 35-year-old shelterbelt in eastern Nebraska, USA. The 2-row shelterbelt was composed of eastern red cedar (Juniperus virginiana) and scotch pine (Pinus sylvestris). A sampling grid was established across a section of the shelterbelt on Tomek silt loam (fine, smectitic, mesic Pachic Argiudolls). Four soil …

Strategies For The Future Of Conservation, Bradford Gentry, Rebecca Sanborn, Gordon Clark

Yale School of the Environment Publications Series

2006 Berkley Workshop Summary and Background Materials

Potantico Conference Center, Tarrytown, New York, June 8-10, 2006 Hosted by The Land Trust Alliance and the Yale School of Forestry & Environmental Studies

Taunton River Watershed Day Announcement - September 15, 2007

Public Meetings

No abstract provided.

Taunton River Watershed Day Agenda - September 15, 2007, Horsley Witten Group, Inc.

Public Meetings

No abstract provided.

Fisheries Research Report No. 163 - Spatial Scales Of Exploitation Among Populations Of Demersal Scalefish: Implications For Management. Part 1: Stock Status Of The Key Indicator Species For The Demersal Scalefish Fishery In The West Coast Bioregion., Department Of Fisheries, Western Australia

Fisheries Research Reports

Final FRDC report - Project 2003/052

The levels of exploitation on dhufish and pink snapper across the West Coast Bioregion and for baldchin groper at the Abrolhos Islands are above international benchmark standards. This indicates that these stocks are currently being overfished and are therefore likely to be being depleted to levels below those necessary to ensure their long-term sustainability. The current reliance of the dhufish catch on a single recruitment pulse together with the extremely truncated age distribution of pink snapper indicates that both these stocks are particularly vulnerable.

The West Coast Demersal Scalefish Fishery is a multi-species fishery …

Land Cover Types Of The Las Vegas Wash, Nevada, Seth A. Shanahan, Dave Silverman, Art Ehrenberg

Publications (WR)

Vegetation type, extent, continuity, and structure are some of the most important factors that determine wildlife diversity and distribution. Other contributing factors that shape wildlife communities include disturbance, competition, climate, and water availability. Because vegetation communities in the southwestern U.S. gradate sharply along zones of soil moisture, wildlife are often restricted to specific vegetation types. Along the Las Vegas Wash (Wash), Nevada, more than 250 wildlife species have been documented to occur in distinct wetland, riparian, and upland vegetation types. Recent studies have investigated the diversity and distribution of amphibians, birds, fishes, mammals, and reptiles (Shanahan 2005, 2005a, Van Dooremolen …

Departures From Gibrat’S Law, Discontinuities And City Size Distributions, Ahjond S. Garmestani, Craig R. Allen, Colin M. Gallagher, John Mittelstaedt

School of Natural Resources: Faculty Publications

Cities are complex, self-organizing, evolving systems and the emergent patterns they manifest provide insight into the dynamic processes in urban systems. This article analyses city size distributions, by decade, from the south-eastern region of the US for the years 1860–1990. It determines if the distributions are clustered into size classes and documents changes in the pattern of size classes over time. A statistical hypothesis test was also performed to detect dependence between city size and growth using discrete probability calculations under the assumption of Gibrat’s law. The city size distributions for the south-eastern region of the US were discontinuous, with …

Ua12/2/1 College Heights Herald, Vol. 83, No. 2, Wku Student Affairs

WKU Administration Documents

WKU campus newspaper reporting campus, athletic and Bowling Green, Kentucky news.

Estimating Business And Residential Water Supply Interruption Losses From Catastrophic Events, Nicholas Brozovic, David L. Sunding, David Zilberman

Daugherty Water for Food Global Institute: Faculty Publications

Following man-made or natural catastrophes, widespread and long-lasting disruption of lifelines can lead to economic impacts for both business and residential lifeline users. As a result, the total economic losses caused by infrastructure damage may be much higher than the value of damage to infrastructure itself. In this paper, we consider the estimation of economic impacts on businesses and residential consumers resulting from water supply disruption. The methodology we present for estimating business interruption losses assumes that marginal losses are increasing in the severity of disruption and that there may be a critical water availability cutoff below which business activity …

Parasite Findings In Archeological Remains: Diagnosis And Interpretation, Adauto Arajuo, Karl J. Reinhard, Luiz Fernando Ferreira

School of Natural Resources: Faculty Publications

Paleoparasitology has contributed to resolving the debate about the peopling of the Americas and determining the antiquity of human parasite infection. Hookworm (Ancylostomidae) and whipworm (Trichuris trichiura) and other exclusive human intestinal parasites have been recorded in pre-Columbian America. These parasite species originated in pre-hominids and have accompanied humans across continents when people went out of Africa. However, for those human populations that crossed the Bering Land Bridge from Siberia to Alaska, cold climate conditions hampered parasite transmission. Alternative migration routes have been proposed to explain the presence of these parasites in pre-Columbian populations in the Americas. Other …

Energy Conservation Opportunities In The Hotel And Casino Sector, Eric Dominguez

UNLV Renewable Energy Symposium

This inaugural event is dedicated to showcasing the renewable/sustainable energy projects of UNLV faculty, staff, students, and collaborators, as well as other external projects underway statewide and nationally. The development and utilization of new technologies to protect the environment, achieve energy independence, and strengthen the economy will be explored. Speakers and poster-session presenters will provide further insight to many ongoing projects and innovative research ideas.

Organized by UNLV’s Office of Strategic Energy Programs, the event offers participants the opportunity to learn about energy projects and will encourage networking and collaboration. This symposium is intended for researchers, educators, students, policy makers, …

Increase In Near-Surface Atmospheric Moisture Content Due To Land Use Changes: Evidence From The Observed Dewpoint Temperature Data, Rezaul Mamood, Kenneth G. Hubbard, Ronnie D. Leeper, Stuart A. Foster

School of Natural Resources: Faculty Publications

Land use change can significantly affect root zone soil moisture, surface energy balance, and near-surface atmospheric temperature and moisture content. During the second half of the twentieth century, portions of the North American Great Plains have experienced extensive introduction of irrigated agriculture. It is expected that land use change from natural grass to irrigated land use would significantly increase nearsurface atmospheric moisture content. Modeling studies have already shown an enhanced rate of evapotranspiration from the irrigated areas. The present study analyzes observed dewpoint temperature (Td) to assess the affect of irrigated land use on near-surface atmospheric moisture content. This investigation …

The John Muir Newsletter, Fall 2007, The John Muir Center For Environmental Studies

Muir Center Newsletters (1981-2015)

John Muir Hanna: A Biography Bill Hanna, Napa, California FAMILY John Muir Hanna was born on March 15, 1909 in Oakland to Wanda Muir and Thomas Rae Hanna. He was the second child of six. His older brother was Strent (Strentzel) who was born in 1907. His younger siblings were Richard, Robert, Jean, and Ross. His grandfather was the naturalist and preservationist John Muir and his grandmother was Louie Strentzel Muir whose parents had settled in Martinez in 1853. John's mother, Annie Wanda Muir, was the elder daughter of John Muir and Louie Strentzel. She and her sister, Helen, were …

Hunter-Gatherer Use Of Small Animal Food Resources: Coprolite Evidence, Karl J. Reinhard, J. R. Ambler, C. R. Szuter

School of Natural Resources: Faculty Publications

Faunal remains are commonly found in coprolites and provide direct evidence of animal consumption. An evaluation of hunter-gatherer coprolites from the Southwest United States shows that animal bone in coprolites can be used to assess patterns of hunting, food preparation, and general importance of small animals in diet. This is demonstrated by a comparison of faunal assemblages between two hunter-gatherer sites with respect to small animal hunting strategies. The sites are Dust Devil Cave on the Colorado Plateau, an Archaic winter habitation, and Hinds Cave, a warm season Archaic habitation in the lower Pecos of Texas. The results indicate that …

Evolution Of The American Ecological Paideia, Mary Snow, Richard K. Snow

Publications

No abstract provided.