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2006

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Full-Text Articles in Life Sciences

Lake Mead National Recreation Area Vegetation Monitoring And Management: Quarterly Progress Report, Period Ending December 31, 2006, Margaret N. Rees Dec 2006

Lake Mead National Recreation Area Vegetation Monitoring And Management: Quarterly Progress Report, Period Ending December 31, 2006, Margaret N. Rees

Vegetation Monitoring

Executive Summary

  • Two new Weed Sentry research assistants were hired.
  • Weed Sentry staff surveyed for exotic species on 89 miles of roads on NPS and BLM land and treated more than 21,000 exotic plants in incipient populations.
  • A grid-based rare plant monitoring method was tested this quarter.
  • A manuscript detailing vegetation succession on a water pipeline at Lake Mead NRA was submitted for review to the journal Crossosoma.
  • New integrative projects undertaken this quarter included establishing a competition study between a native grass and the exotic Sahara mustard, salvaging plants for research purposes from private sites with permission from ...


Lake Mead National Recreation Area Sensitive Wildlife Species Monitoring And Analysis: Quarterly Progress Report, Period Ending December 31, 2006, Margaret N. Rees Dec 2006

Lake Mead National Recreation Area Sensitive Wildlife Species Monitoring And Analysis: Quarterly Progress Report, Period Ending December 31, 2006, Margaret N. Rees

Wildlife Monitoring

  • Research assistant hired for Relict Leopard Frog conservation project.
  • High school minority intern hired to assist with research efforts.
  • Nocturnal visual encounter surveys for Relict Leopard Frogs conducted at all established natural sites and at 6 of 7 translocation sites.
  • Vegetation management conducted to decrease tamarisk cover along the stream at the Pupfish Refuge Spring – a Relict Leopard Frog translocation site.
  • New draft guidelines and field count protocols developed for midwinter bald eagle count.
  • Preliminary analysis and modeling of thrasher habitat selection conducted and sampling assessed
  • Call-broadcast surveys for thrasher species conducted at 43 points countywide, focusing on vegetation assemblages ...


Tb195: Element Concentrations In Maine Forest Vegetation And Soils, Chandra J. Mcgee, Ivan J. Fernandez, Stephen A. Norton, Constance S. Stubbs Dec 2006

Tb195: Element Concentrations In Maine Forest Vegetation And Soils, Chandra J. Mcgee, Ivan J. Fernandez, Stephen A. Norton, Constance S. Stubbs

Technical Bulletins

Bioaccumulation of trace metals in plant tissues can present a health risk to wildlife, and potentially to humans. The Passamaquoddy Tribe in Maine was concerned about health risks of cadmium (Cd) because of a health advisory for moose liver and kidney consumption due to high Cd levels. In addition to Cd, this study evaluated concentrations of aluminum (Al), calcium (Ca), copper (Cu), iron (Fe), potassium (K), magnesium (Mg), manganese (Mn), nickel (Ni), phosphorus (P), lead (Pb), and zinc (Zn) in four common terrestrial moose-browse species, associated forest soils, and two species of aquatic vegetation on Passamaquoddy tribal land in eastern ...


Changes In Land Cover And Soil Conditions For The Yabelo District Of The Borana Plateau, 1973-2003, D. Layne Coppock, Sintayehu Mesele, Heluf Gebrekidan, Lemma Gizachew Dec 2006

Changes In Land Cover And Soil Conditions For The Yabelo District Of The Borana Plateau, 1973-2003, D. Layne Coppock, Sintayehu Mesele, Heluf Gebrekidan, Lemma Gizachew

Environment and Society Faculty Publications

It has been proposed that the Borana Plateau has markedly changed in terms of land cover and land use in recent decades, but no hard data have been available to critically assess this claim. In addition, systematic analysis of soil properties has been limited. Research was designed to measure changes in land cover/land use over 30 years in the 400-km2 Yabelo District of southern Ethiopia using three satellite images taken at an average interval of 15 years. Samples were also collected to assess variation in the physical and chemical properties of dominant soils. Results indicated that Yabelo District has ...


Collective Action By Women’S Groups To Combat Drought And Poverty In Northern Kenya, D. Layne Coppock, Solomon Desta, Getachew Gebru, Adan Wako, Ibrahim Aden, Chachu Tadecha, Seyoum Tezera Dec 2006

Collective Action By Women’S Groups To Combat Drought And Poverty In Northern Kenya, D. Layne Coppock, Solomon Desta, Getachew Gebru, Adan Wako, Ibrahim Aden, Chachu Tadecha, Seyoum Tezera

Environment and Society Faculty Publications

Collective action can be an effective means of local development and risk reduction among rural people, but few examples have been documented in pastoral areas. We conducted extensive interviews for 16 women’s groups residing in northern Kenya. Our objectives were to understand how groups were formed, governed, and sustained and what activities they have pursued. The groups we interviewed were 10 years old, on average. Charter memberships averaged about 24 women, 20 of whom were illiterate. Half of the groups formed after facilitation by a development partner and half formed spontaneously. Groups are governed under detailed constitutional frameworks with ...


From Herd Diversification To Livelihood Diversification As A Response To Poverty: The Case Of The Waso Boran Of Northern Kenya, D. Layne Coppock, Abdullahi D. Jillo, Abdillahi A. Aboud Dec 2006

From Herd Diversification To Livelihood Diversification As A Response To Poverty: The Case Of The Waso Boran Of Northern Kenya, D. Layne Coppock, Abdullahi D. Jillo, Abdillahi A. Aboud

Environment and Society Faculty Publications

The Waso Boran of northern Kenya used to have large, mobile, and diverse herds of livestock that exploited equally large and diverse rangelands. Forty years of human population growth, drought, environmental change, and lack of relevant policies have altered this situation, however, with the majority of Waso Boran today being livestock poor and engaged in a variety of non-pastoral activities to diversify their livelihoods. One-third of 540 households we surveyed in Isiolo District now have ten head of cattle or less, and a larger census suggests that only 15 percent of households can currently be categorized as mobile pastoralists. The ...


Community Perceptions Concerning Key Ecological Resources At Risk In Baringo District, Kenya, D. Layne Coppock, Mark N. Mutinda, Abdillahi A. Aboud Dec 2006

Community Perceptions Concerning Key Ecological Resources At Risk In Baringo District, Kenya, D. Layne Coppock, Mark N. Mutinda, Abdillahi A. Aboud

Environment and Society Faculty Publications

Key ecological resources in arid and semi-arid lands are often characterized by small patches of seasonal grazing and important water points that lend critical support to entire production systems. When key resources are degraded or lost, production systems can be badly compromised. The Baringo District of north-central Kenya is well known for enduring decades of environmental degradation and food relief. As an initial part of an effort to map and characterize key ecological resources at risk in Baringo, we interviewed 136 resident leaders from pastoral and agro-pastoral areas. We asked them to identify and rank their most vulnerable ecological resources ...


Public Engagement To Prioritize The Pastoral Research Agenda At The Pastoral And Agro-Pastoral Research Center Of Oari In Ethiopia, D. Layne Coppock, Getachew Gebru, Lemma Gizachew, Sintayehu Mesele, Mohammed Hassena, Solomon Desta Dec 2006

Public Engagement To Prioritize The Pastoral Research Agenda At The Pastoral And Agro-Pastoral Research Center Of Oari In Ethiopia, D. Layne Coppock, Getachew Gebru, Lemma Gizachew, Sintayehu Mesele, Mohammed Hassena, Solomon Desta

Environment and Society Faculty Publications

The Oromia Agricultural Research Institute (OARI) has a mandate to conduct agricultural and livestock research throughout the Regional State of Oromia in Ethiopia. OARI has recently opened a facility near Yabello town on the Borana Plateau called the Pastoral and Agro-Pastoral Research Center. A meeting was held in August 2006 at Yabello that involved representatives from pastoral communities, the private sector, government, and non-governmental organizations. The aim was to engage stakeholders in a process of problem prioritization and set the stage to create new partnerships to better address pressing problems. The final priorities included: addressing a general decline in forage ...


Interview With Carol Mayer-Reed, Mayer/Reed, 2006 (Audio), Carol Mayer-Reed Dec 2006

Interview With Carol Mayer-Reed, Mayer/Reed, 2006 (Audio), Carol Mayer-Reed

All Sustainability History Project Oral Histories

Interview of Carol Mayer-Reed by Robyn Russnogle at on December 1st, 2006.

The interview index is available for download.


Fragmentation And Loss: A Gis View Of The Mojave Desert Tortoise Habitat, Linda J. Wallers Dec 2006

Fragmentation And Loss: A Gis View Of The Mojave Desert Tortoise Habitat, Linda J. Wallers

MS GIS Program Major Individual Projects

Landscapes are ever changing or being changed by natural forces or by human activities. The changes, over time, frequently result in more complex and fragmented landscape structures. Much of the fragmentation is due to human activities, primarily roads. Landscape indices, tools that identify and quantify landscape structure, provide statistical analysis of how the landscape is fragmented by roads and what, if any, habitat loss resulting from road-avoidance behavior might be present. The interpretation of the landscape indices can give scientists clues to where limited resources can be directed to preserve the habitat.

The desert tortoise habitat was chosen as the ...


Restoring Perennial Cover And Ecological Function To Corn Belt Landscapes: The Iowa Farmer's Perspective, Ryan C. Atwell, Lisa A. Schulte, Lynne M. Westphal Dec 2006

Restoring Perennial Cover And Ecological Function To Corn Belt Landscapes: The Iowa Farmer's Perspective, Ryan C. Atwell, Lisa A. Schulte, Lynne M. Westphal

Natural Resource Ecology and Management Publications

The tallgrass prairie ecosystem of the North American Corn Belt region has experienced major alteration of hydrologic systems, nearly complete loss of natural perennial vegetation, and concomitant decline in species due to agricultural intensification. In this working landscape, restoration to pre-European settlement conditions is doubtful. However, current research posits that restoring strategically placed patches of perennial cover across agricultural watersheds, such as stream buffers, wetlands and prairies, as well as instituting more diverse cropping rotations, could bolster current ecological function and enhance the conservation of species. These studies also suggest that such restoration might increase socio-economic resilience in the region ...


Intra-Industry Trade, Multilateral Trade Integration, And Invasive Species Risk, Anh T. Tu, John C. Beghin Dec 2006

Intra-Industry Trade, Multilateral Trade Integration, And Invasive Species Risk, Anh T. Tu, John C. Beghin

CARD Working Papers

We analyze the linkage between protectionism and invasive species (IS) hazard in the context of two-way trade and multilateral trade integration, two major features of real-world agricultural trade. Multilateral integration includes the joint reduction of tariffs and trade costs among trading partners. Multilateral trade integration is more likely to increase damages from IS than predicted by unilateral trade opening under the classic Heckscher-Ohlin-Samuelson (HOS) framework because domestic production (the base susceptible to damages) is likely to increase with expanding export markets. A country integrating its trade with a partner characterized by relatively higher tariff and trade costs is also more ...


Derelict Blue Crab Trap Impacts On Marine Fisheries In The Lower York River, Virginia, Kirk J. Havens, Donna Marie Bilkovic, David Stanhope, Kory Angstadt, Carl Hershner, Center For Coastal Resources Management, Virginia Institute Of Marine Science Dec 2006

Derelict Blue Crab Trap Impacts On Marine Fisheries In The Lower York River, Virginia, Kirk J. Havens, Donna Marie Bilkovic, David Stanhope, Kory Angstadt, Carl Hershner, Center For Coastal Resources Management, Virginia Institute Of Marine Science

Reports

In Virginia, an examination of existing derelict trap data retrieved from Chesapeake Bay Multispecies Monitoring and Assessment Program (ChesMMAP) trawl surveys shows the potential effect of derelict traps on fish communities in Virginia waters (Bonzek and Latour 2005). Since 2002, ChesMMAP has attempted to sample 90 stations in the mainstem Chesapeake Bay ranging from the southern edge of the Susquehanna Flats to the Bay mouth in all depths to a minimum of 10 feet during each cruise. There are approximately 4-5 cruises per year and a large mesh bottom trawl is used to capture adult fish of a variety of ...


Cost-Effective, Performance-Based Environmental Management, John Rodecap, Chad Ingels Nov 2006

Cost-Effective, Performance-Based Environmental Management, John Rodecap, Chad Ingels

Proceedings of the Integrated Crop Management Conference

Iowa has over 19,000 miles of interior rivers and streams, numerous lakes and other natural resources and considerable agricultural production capacity. With such an extensive network of water bodies running through the state it is no surprise that experts have estimated that 90% of Iowa water quality issues are attributed to agricultural land and related activities. This nonpoint source contamination often results from long term actions and will take a long time for measurable outcomes.


Interview With Laurel Macdonald-Bonnell, Macdonald Environmental, 2006 (Audio), Laurel Macdonald-Bonnell Nov 2006

Interview With Laurel Macdonald-Bonnell, Macdonald Environmental, 2006 (Audio), Laurel Macdonald-Bonnell

All Sustainability History Project Oral Histories

Interview of Laurel McDonald by Chloe Collins at MacDonald Environmental Planning on November 29th, 2006.

The interview index is available for download.


Interview With Brian Croak, Croak Creations, 2006 (Audio), Brian Croak Nov 2006

Interview With Brian Croak, Croak Creations, 2006 (Audio), Brian Croak

All Sustainability History Project Oral Histories

Interview of Brian Croak by Chloe Collins on November 28th, 2006.

The interview index is available for download.


Evaluation Of Striped Bass Stocks In Virginia: Monitoring And Tagging Studies, 2004-2008, 1 September 2005 - 31 August 2006, Philip W. Sadler, John M. Hoenig, Robert E. Harris Nov 2006

Evaluation Of Striped Bass Stocks In Virginia: Monitoring And Tagging Studies, 2004-2008, 1 September 2005 - 31 August 2006, Philip W. Sadler, John M. Hoenig, Robert E. Harris

Reports

This report presents the results of striped bass (Morone saxatilis) tagging and monitoring activities in Virginia during the period 1 September 2005 through 31 August 2006. It includes an assessment of the biological characteristics of striped bass taken from the 2006 spring spawning run, estimates of annual survival and fishing mortality based on annual spring tagging, and the preliminary results of the fall 2005 study that documents the prevalence of mycobacterial infections of striped bass in Chesapeake Bay. The information contained in this report is required by the Atlantic States Marine Fisheries Commission and is used to implement a coordinated ...


The Long-Run Impact Of Corn-Based Ethanol On The Grain, Oilseed, And Livestock Sectors: A Preliminary Assessment, Amani E. Elobeid, Simla Tokgoz, Dermot J. Hayes, Bruce A. Babcock, Chad E. Hart Nov 2006

The Long-Run Impact Of Corn-Based Ethanol On The Grain, Oilseed, And Livestock Sectors: A Preliminary Assessment, Amani E. Elobeid, Simla Tokgoz, Dermot J. Hayes, Bruce A. Babcock, Chad E. Hart

CARD Briefing Papers

The ongoing growth of corn-based ethanol production raises some fundamental questions about what impact continued growth will have on U.S. and world agriculture. Estimates of the long-run potential for ethanol production can be made by calculating the corn price at which the incentive to expand ethanol production disappears. Under current ethanol tax policy, if the prices of crude oil, natural gas, and distillers grains stay at current levels, then the break-even corn price is $4.05 per bushel. A multi-commodity, multi-country system of integrated commodity models is used to estimate the impacts if we ever get to $4.05 ...


Policy Tools For Smart Growth In New England, New England Environmental Finance Center Nov 2006

Policy Tools For Smart Growth In New England, New England Environmental Finance Center

Smart Growth

Across New England communities have been experiencing a rapid outward surge of development away from our community and downtown centers. Effects of sprawl include a loss of wildlife habitat, farm and timber lands; increased costs of community services and higher taxes; auto-dependency, longer commutes, and increased congestion; increases in air and water pollution; a sedentary lifestyle and increased obesity; and losses to one’s sense of place and social ties.

State-level responses to sprawl have surfaced throughout New England in recent years. This report describes 11 examples of these responses, representing all six New England states and a diversity of ...


Characterization Of Volatile Organic Compounds And Odors By In-Vivo Sampling Of Beef Cattle Rumen Gas, By Solid-Phase Microextraction, And Gas Chromatography–Mass Spectrometry–Olfactometry, Lingshuang Cai, Jacek A. Koziel, Jeremiah Davis, Yin-Cheung Lo, Hongwei Xin Nov 2006

Characterization Of Volatile Organic Compounds And Odors By In-Vivo Sampling Of Beef Cattle Rumen Gas, By Solid-Phase Microextraction, And Gas Chromatography–Mass Spectrometry–Olfactometry, Lingshuang Cai, Jacek A. Koziel, Jeremiah Davis, Yin-Cheung Lo, Hongwei Xin

Agricultural and Biosystems Engineering Publications

Volatile organic compounds (VOCs) and odors in cattle rumen gas have been characterized by in-vivo headspace sampling by solid-phase microextraction (SPME) and analysis by gas chromatography–mass spectrometry–olfactometry (GC–MS–O). A novel device enabling headspace SPME (HS-SPME) sampling through a cannula was designed, refined, and used to collect rumen gas samples from steers. A Carboxen–polydimethylsiloxane (PDMS) fiber (85 μm) was used for SPME sampling. Fifty VOCs from ten chemical groups were identified in the rumen headspace. The VOCs identified had a wide range of molecular weight (MW) (34 to 184), boiling point (−63.3 to 292 °C ...


An Analysis Of The Link Between Ethanol, Energy, And Crop Markets, Simla Tokgoz, Amani E. Elobeid Nov 2006

An Analysis Of The Link Between Ethanol, Energy, And Crop Markets, Simla Tokgoz, Amani E. Elobeid

CARD Working Papers

This study analyzes the impact of price shocks in three input and output markets critical to ethanol: gasoline, corn, and sugar. We investigate the impact of these shocks on ethanol and related agricultural markets in the United States and Brazil. We find that the composition of a country's vehicle fleet determines the direction of the response of ethanol consumption to changes in the gasoline price. We also find that a change in feedstock costs affects the profitability of ethanol producers and the domestic ethanol price. In Brazil, where two commodities compete for sugarcane, changes in the sugar market affect ...


Butterflies And Continuous Conservation Reserve Program Filter Strips: Landscape Considerations, Nicole M. Davros, Diane M. Debinski, Kathleen F. Reeder, William L. Hohman Nov 2006

Butterflies And Continuous Conservation Reserve Program Filter Strips: Landscape Considerations, Nicole M. Davros, Diane M. Debinski, Kathleen F. Reeder, William L. Hohman

Ecology, Evolution and Organismal Biology Publications

Filter strips or buffers are areas of grass or other perennial herbaceous vegetation established along waterways to remove contaminants and sediments from agricultural field runoff. In the heavily cultivated regions of the Midwestern United States, these buffer zones established under the Farm Bill provide important habitat for wildlife such as butterflies. The question of how the landscape context of these plantings influences their use has not been adequately researched. We used multiple regression and Akaike’s Information Criteria to determine how habitat width and several landscape-level factors (i.e., landscape composition [total herbaceous cover, amount of developed area, and amount ...


The Importance Of Emerging Biobased Industries To Engineering And Technology, Kurt A. Rosentrater, R. Balamuralikrishma Oct 2006

The Importance Of Emerging Biobased Industries To Engineering And Technology, Kurt A. Rosentrater, R. Balamuralikrishma

Kurt A. Rosentrater

Our society has developed an insatiable demand for energy and material goods. Historically, these needs have been met primarily by fossil fuels and other non-renewable raw materials. As environmental concerns grow, however, renewable resources are gaining increased attention. This paper examines the emergence and importance that biobased industries are increasingly beginning to play. A biobased enterprise, similar in concept to a traditional refinery or factory, utilizes conversion technologies to produce various products. These operations are rapidly increasing both in number as well as in capacity throughout this country, and are poised to add significantly to the nation’s energy and ...


Analytical And Experimental Studies Of Properties Of Ethanol Coproduct-Filled Plastics, Robert Tatara, Andrew Otieno, Srikrishna Suraparaju, Kurt A. Rosentrater Oct 2006

Analytical And Experimental Studies Of Properties Of Ethanol Coproduct-Filled Plastics, Robert Tatara, Andrew Otieno, Srikrishna Suraparaju, Kurt A. Rosentrater

Kurt A. Rosentrater

As the renewable fuels industry continues to grow, the quantity of resulting byproducts has expanded in tandem. Currently, these materials are primarily used for animal feed, but at some point will saturate the animal feeds market. Thus, it is necessary to investigate alternative methods and applications by which these coproducts can be utilized. One potential application for these process residues involves plastics manufacturing. Due, in part, to the increasing cost of resins and conventional fillers, alternate fillers have been increasingly sought. Many of these include biological materials such as grasses, bamboo, starch, chicken feathers, soy protein, and cellulose. Not only ...


A Lake Restoration Plan For Furman Lake, Lake Restoration Task Force, Wade Worthen, Wes Dripps Oct 2006

A Lake Restoration Plan For Furman Lake, Lake Restoration Task Force, Wade Worthen, Wes Dripps

Furman Lake Restoration Book Gallery

A twelve page document submitted by The Lake Restoration Task Force. The document lists the members of the task force, gives an overview of the project, the current status at the time of submission, lays out a new vision for the lake, and a plan to improve the environmental integrity of the lake watershed, plus design elements to create a multi-purpose facility. It concludes with a section on the lake as pedagogy and recommendations for moving forward with the master plan.


Red Rock Desert Learning Center Stakeholder Phasing Meeting: October 5, 2006, Red Rock Desert Learning Center Oct 2006

Red Rock Desert Learning Center Stakeholder Phasing Meeting: October 5, 2006, Red Rock Desert Learning Center

Reports (RRLC)

  • Our goals for this meeting
  • What does phasing offer us?
  • Possible phasing scenados
  • Where do we go from here?
  • Other business regarding RRDLC


Leopold Letter Fall 2006, Leopold Center For Sustainable Agriculture Oct 2006

Leopold Letter Fall 2006, Leopold Center For Sustainable Agriculture

Leopold Letter

Major grant continues Value Chain Partnerships project ; Stockpiling shows potentia for developing heifers ; Director column: What role in renewable energy debate? ; Kirschenmann column: Managing with less energy ; Project studies next generation of biorenewables ; Few dollars go to research for midsize farms ; local ownership boosts ethanol plant benefits on local economies ; A conversation with the Rosmanns, 2006 Spencer Award winners ; Workshop explores grazing as a land management tool for prairies ; New web-based tool targets Gulf Dead Zone


Fire Making Fuel: How A Surface Fire In A Primary Forest Affected The Availability Of Potential Fuel One Year Later, Alex Leckie Oct 2006

Fire Making Fuel: How A Surface Fire In A Primary Forest Affected The Availability Of Potential Fuel One Year Later, Alex Leckie

Independent Study Project (ISP) Collection

Fires affect millions of hectares of tropical forests around the world. These fires result in great environmental damage and economical losses. Many farmers are dependent on fire for managing their lands and many times their fires accidentally spread into forests via fuels on the forest floor. This study attempted to analyze and quantify the difference of potential fuel in a primary forest which burned one year before and an unburned part of the same forest at a primary forest fragment surrounded by farms and with a history of anthropogenic accidental fires burning it. This was done by making three sample ...


Removal Of U.S. Ethanol Domestic And Trade Distortions: Impact On U.S. And Brazilian Ethanol Markets, Amani E. Elobeid, Simla Tokgoz Oct 2006

Removal Of U.S. Ethanol Domestic And Trade Distortions: Impact On U.S. And Brazilian Ethanol Markets, Amani E. Elobeid, Simla Tokgoz

CARD Working Papers

We analyze the impact of trade liberalization and removal of the federal tax credit in the United States on U.S. and Brazilian ethanol markets using a multi-market international ethanol model calibrated on 2005 market data and policies. The removal of trade distortions induces a 23.2 percent increase in the price of world ethanol on average between 2006 and 2015 relative to the baseline. The U.S. domestic ethanol price decreases by 14.1 percent, which results in a 7.5 percent decline in production and a 3.2 percent increase in consumption. The lower domestic price leads to ...


Lake Mead National Recreation Area Vegetation Monitoring And Management: Final Close-Out Report, Time Period: October 1, 2005 To September 30, 2006, Margaret N. Rees Sep 2006

Lake Mead National Recreation Area Vegetation Monitoring And Management: Final Close-Out Report, Time Period: October 1, 2005 To September 30, 2006, Margaret N. Rees

Vegetation Monitoring

The National Park Service (NPS) at Lake Mead National Recreation Area (LAME) entered into a cooperative agreement with the University of Nevada, Las Vegas (UNLV) to accomplish vegetation monitoring and management activities. This report summarizes activities that took place by UNLV under this task agreement between October 1, 2005, and September 30, 2006. The activities included:

  • Weed Sentry mapping and treating incipient populations of exotic invasive plants throughout Clark County, including along shorelines of Lakes Mead and Mohave;
  • Monitoring of targeted rare native plant species;
  • Sahara mustard research; and
  • Providing technical assistance upon request to the NPS vegetation manager.

In ...