Physical Sciences and Mathematics Commons^™

Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering October 1 – December 31, 2008, Margaret N. Rees

Get Outdoors Nevada

• The number of records in the volunteer database increased 8% over last quarter. The database now contains 6,431 records.
• Website activity increased, recording an average of 56,013 hits per month, an increase of 6% from last quarter, with an average of 5,211 pages viewed per month.
• Volunteer fall training has been completed.
• Three National Public Land Day and National Family Events have been completed.
• Two hundred and five people attended the Volunteer Recognition Event.

Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending December 31, 2008, Margaret N. Rees

Wildlife Monitoring

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

• All milestones and deliverables associated with the MSHCP project are on schedule
• Completion of 2008 monitoring survey efforts
• Coordination is ongoing to identify potential translocation sites, including assisting efforts to identify a potential site in the western Grand Canyon
• RLFCT meeting hosted and minutes of meeting drafted
• Annual report provided to RLFCT, final draft in review
• Sampling for the amphibian chytrid fungus conducted at many sites

Project 2. Bald Eagle Winter Monitoring and Evaluation

• All MSHCP milestones and deliverables are on schedule
• Planning and coordination of the 2009 Eagle Count conducted …

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

Limnological Studies

Project 1: Technical input has been provided at four advisory team meetings attended this quarter.

Project 2: A formal report titled, Surface Water Monitoring for Indicator Bacteria in High-use Sites of the Lake Mead National Recreation Area, has been prepared; an accompanying poster presentation for the Lake Mead Science Symposium is in preparation.

Project 3: A draft document titled, “Interagency Monitoring Action Plan (I-MAP): Quagga Mussels in Lakes Mead and Mohave” has been presented to an interagency core group to review and input. Six oral presentations related to quagga mussels are in preparation by this group for the Lake Mead …

Early Post-Fire Recovery On A Heavily Visited Mojave Desert Burn: Red Rock Canyon Near Las Vegas, Nevada, Scott R. Abella, E. Cayenne Engel, Christina L. Lund, Jessica E. Spencer

Fire Science Presentations

Wildfire has become widespread in southwestern USA deserts. In a record 2005 fire season in the Mojave Desert, for example, more than 385,000 hectares burned (Brooks and Matchett 2006). This burned area is approximately 3% of the entire Mojave Desert. Fueled in large part by exotic annual grasses, these fires burned desert ecosystems thought to have only burned infrequently historically. Burns now occupy significant portions of desert landscapes, posing prominent management challenges. Improving our understanding of plant recovery on desert burns is important for evaluating future fire hazard, whether natural revegetation will meet management objectives, and for planning active revegetation …

Using A Diverse Seed Mix To Establish Native Plants On A Sonoran Desert Burn, Scott R. Abella, John L. Gunn, Mark L. Daniels, Judith D. Springer, Susan E. Nyoka

Fire Science Presentations

• Revegetating burned areas is a formidable challenge facing resource managers in southwestern United States arid lands.
• Natural revegetation of desert burns by native species may be slow, or dominated by exotic annual grasses that perpetuate a frequent-fire regime.
• Resource managers may have several reasons for actively revegetating burns with native species, such as for providing competition with exotic species, minimizing soil erosion and dust pollution, and improving aesthetics.
• The use of native species in revegetation has been limited by a lack of available seed and by findings that native desert species are difficult to establish (e.g., Bainbridge and Virginia 1990, …

Post-Fire Plant Recovery In The Mojave And Sonoran Deserts Of Western North America, Scott R. Abella, Public Lands Institute, Department Of Environmental Studies, University Of Nevada, Las Vegas

Fire Science Presentations

Fire is thought to have been generally rare historically in the Mojave and Sonoran Deserts. However, invasion by exotic grasses (e.g., Schismus spp.) has increased fuel continuity, promoting fire in these deserts. Succession and recovery are not well understood processes in deserts, nonetheless for a novel disturbance like fire. In addition to helping build theories of desert succession and recovery, information on post-fire recovery has numerous practical implications (e.g., determining whether active revegetation is needed). Systematic reviews provide a means for obtaining literature using reproducible search criteria. This approach facilitates a balanced appraisal of available information, synthesizes scattered literature, and …

Transforming Water: Water Efficiency As Stimulus And Long‐Term Investment, David Mitchell, Janice Beecher, Thomas Chesnutt, David Pekelney

Publications (WR)

Water Efficiency programs have an established track record as cost‐effective long‐term public resource investments. Less well understood are the short‐term economic impacts of these rapidly scalable and adaptable programs, and the ability of these programs to quickly deliver economic benefit as well as sustainable solutions. This paper quantitatively examines the short‐term economic growth impacts of water/energy efficiency investments, specifically in terms of job creation, income, GDP, national output, water savings, and other benefits.

Our consultant team modeled a wide range of water/energy efficiency program possibilities, across all water‐using sectors and involving indoor, outdoor, and water system efficiencies. This modeling clearly …

Inside Unlv, Diane Russell, Michelle Mouton, Mamie Peers, Shane Bevell

Inside UNLV

No abstract provided.

Education In The Environment: A Strategy For Continued Interagency Outdoor Education Programming: Quarterly Progress Report: Period Ending November 30, 2008, Environmental Education Strategy For Nevada

Reports (PLI Education)

Highlights of the university’s focused efforts during the past three months include the following:

• Fourteen people are near completion of the Fall Cohort workshop sessions toward partial achievement of the Nevada State Certification in Environmental and Interpretation Certification Program.
• Participation in the Michoacán Cultural Festival (500 people in attendance).
• Participation in the Day of the Dead: Life in Death Festival (over 11,000 in attendance).
• Development planning is near completion for the mobile exhibit program to support and deliver SNAP messages.
• Forever Earth was scheduled for 32 days and benefited 1077 individuals.
• Sixteen Discover Mojave Outdoor World events were conducted for …

Supply Curves For Rooftop Solar Pv-Generated Electricity For The United States, Paul Denholm, Robert Margolis

Publications (E)

In this report, we examine several possible methods for generating PV supply curves based exclusively on rooftop deployment. We begin by introducing a framework methodology for a basic supply curve based on estimated distribution of population and buildings, rooftop availability and orientation, and geographical variation in resource. We then discuss limitations to this basic methodology and introduce alternative supply curves that consider additional factors – changes in PV efficiency and configuration, rooftop availability, and grid limitations – while emphasizing the data and methodological limitations to each approach. The resulting curves potentially could be used as inputs to other models or …

Inside Unlv, Shane Bevell, Tony Allen, Karen Sharp, Mamie Peers, Cate Weeks

Inside UNLV

No abstract provided.

The University As Your Partner: Adding Value To Conservation Initiatives, Margaret N. Rees, Public Lands Institute

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

Adaptive Management Report For The Clark County, Nevada Multiple Species Habitat Conservation Plan, Desert Conservation Program

Publications (C)

The Desert Conservation Program administers an incidental take permit for desert tortoise and 77 other species. The permit was issued in 2001 by the United States Fish and Wildlife Service in accordance with the Endangered Species Act. Compliance with the permit requires implementation of the Clark County Multiple Species Habitat Conservation Plan. This plan requires an adaptive management program and a biennial report by an independent science advisor to assess the status of the plan and make recommendations for future funding. The 2008 Adaptive Management Report reviews current data on land use trends, habitat loss, species status, plan implementation, programmatic …

Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering July 5, 2008 – October 5, 2008, Margaret N. Rees

Anti-littering Programs

• Take Pride in America in Southern Nevada wins national Take Pride in America Award for best state program and Senate recognition

• Zia Engineering begins work on Recycling Plan

• Name the Mascot contest drawing interest and support

• Dumping and litter prevention information for Northern Nevada added to web site

• Three events conducted this quarter

• Team reaches milestone of 60 events since inception

• Agreement with Spring Mountain Youth Camp finalized

Inside Unlv, Diane Russell, Shane Bevell, Jennifer Vaughan

Inside UNLV

No abstract provided.

Mojave Applied Ecology Notes Fall 2008, Alice Miller, Joshua Hoines, Scott R. Abella

Mojave Applied Ecology Notes

Effects of wildfires in Joshua Tree National Park, Blackbrush masting volunteer seed collection effort, new book chapter on Mojave revegetation, Natural Areas Association presentations.

Unlv Magazine, Holly Ivy De Vore, Tony Allen, Barbara Cloud, Erin O'Donnell, Matthew K. Jacobsen, Gian Galassi, Michelle Mouton, Afsha Bawany, Shane Bevell

UNLV Magazine

No abstract provided.

Consequences Of More Extreme Precipitation Regimes For Terrestrial Ecosystems, S. D. Smith, C. Beier, Aimee T. Classen, Melinda D. Smith, Jana L. Heisler, S. W. Leavitt, Alan K. Knapp, D. Briske, Y. Luo, M. Reichstein, J. E. Bell, Philip A. Fay, R. Sherry, Benjamin Smith

Life Sciences Faculty Research

Amplification of the hydrological cycle as a consequence of global warming is forecast to lead to more extreme intra-annual precipitation regimes characterized by larger rainfall events and longer intervals between events. We present a conceptual framework, based on past investigations and ecological theory, for predicting the consequences of this underappreciated aspect of climate change. We consider a broad range of terrestrial ecosystems that vary in their overall water balance. More extreme rainfall regimes are expected to increase the duration and severity of soil water stress in mesic ecosystems as intervals between rainfall events increase. In contrast, xeric ecosystems may exhibit …

New Book Chapter Reviewing Mojave Desert Revegetation Practices Is Forthcoming, Scott R. Abella

Public Policy and Leadership Faculty Publications

I was invited to write a chapter for a forthcoming book on Arid Environments to be published by Nova Science Publishers. This book is anticipated to appear in late 2008 or early 2009, and we will be able to provide additional details about the entire book at that time. I co-authored our chapter on revegetation with Alice Newton, Vegetation Manager at Lake Mead National Recreation Area. We systematically reviewed 23 published studies of planting or seeding native species in the Mojave Desert.

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.

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 …

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 …

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 …

Interagency Science And Research: Quarterly Progress Report, Period Ending September 30, 2008, Margaret N. Rees

Interagency Science and Research Strategy

• The major focus this quarter has been on completing a draft of the SNAP Science and Research Strategy and distributing it for internal and external review.

Estimating Soil Seed Bank Characteristics In Ponderosa Pine Forests Using Vegetation And Forest-Floor Data, Scott R. Abella, Judith D. Springer

Public Policy and Leadership Faculty Publications

Soil seed banks are important for vegetation management because they contain propagules of species that may be considered desirable or undesirable for site colonization after management and disturbance events. Knowledge of seed bank size and composition before planning management activities facilitates proactive management by providing early alerts of exotic species presence and of abilities of seed banks to promote colonization by desirable species. We developed models in ponderosa pine (Pinus ponderosa) forests in northern Arizona to estimate the size and richness of mineral soil seed banks using readily observable vegetation and forestfloor characteristics. Regression models using three or fewer predictors …

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 Publications

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. …

Plant Recruitment In A Northern Arizona Ponderosa Pine Forest: Testing Seed- And Leaf Litter- Limitation Hypotheses, Scott R. Abella

Public Policy and Leadership Faculty Publications

Seed availability and leaf litter limit plant establishment in some ecosystems. To evaluate the hypothesis that these factors limit understory plant recruitment in Pinus ponderosa forests, I conducted a seeding and litter removal experiment at six thinned sites in the Fort Valley Experimental Forest, northern Arizona. Experimental seeding of four native species (Penstemon virgatus, Erigeron formosissimus, Elymus elymoides, and Festuca arizonica) and raking of litter occurred in 2005. Seeding resulted in a substantial recruitment of 14 to 103 seedlings/m2 (1 to 10/ft2) one month after seeding for two species (P. virgatus and E. elymoides), but these densities subsequently declined by …

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.

Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering April 6, 2008- July 5, 2008, Margaret N. Rees

Anti-littering Programs

• Take Pride in America in Southern Nevada wins national Take Pride in America Award for best state program

• Team is working to secure consulting firm for recycling plan project

• Don’t Trash Nevada Day event held on May 30, 2008

• Phase II media plan began June 1, 2008

• Formed new partnership with Keep Truckee Meadows Beautiful

• Total of 189 people signed the anti-litter pledge

• The Anti-Litter Team conducted nine volunteer clean up events

• The Anti-Litter Team participated in five community outreach events

• Don’t Trash Nevada featured in several newspaper and television news …

Mojave Applied Ecology Notes Summer 2008, Doug Merkler, Scott R. Abella, Dianne N. Bangle, Donovan J. Craig, Jessica E. Spencer, Alex Suazo

Mojave Applied Ecology Notes

Soil climate project, rare plant monitoring, JFS update, granivory and Sahara mustard