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Articles 1 - 10 of 10
Full-Text Articles in Life Sciences
Joint Fire Science Program – Lake Mead National Recreation Area Revegetating Burned Arid Lands: Identifying Successful Native Species Using Trait And Competition Analysis: Quarterly Progress Report, Time Period: July 1 — September 30, 2009, Margaret N. Rees
Fire Science
- Weighed biomass for competitive hierarchy study.
- Completed more seed granivory trials at Goodsprings.
- Monitored and maintained nursery plots.
- Submitted revised article to Journal of Arid Environments.
Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending September 30, 2009, Margaret N. Rees
Limnological Studies
Project 1: Two advisory team meetings were attended this year; technical input was provided as appropriate; and summaries were prepared and delivered to Kent Turner. The SCOP Selenium Management Plan has been reviewed with two reports provided.
Project 2: Whitepapers on the carp die-off due to Koi Herpes Virus (KHV) and on lead-base paint use on launch ramps were finalized and delivered to Mr. Turner.
Project 3: The Interagency Monitoring Action Plan (I-MAP) for Quagga Mussels has been approved for implementation.
Project 5: Seven articles based on presentations at the Lake Mead Science Symposium have been approved by the technical …
Interagency Management Action Plan (I-Map) For Quagga Mussels, David Wong, Shawn Gerstenberger
Interagency Management Action Plan (I-Map) For Quagga Mussels, David Wong, Shawn Gerstenberger
Public Lands Institute Publications
Following the discovery of quagga mussels in Lake Mead, a variety of agencies, including National Park Service (NPS) Lake Mead National Recreational Area (LMNRA), Bureau of Reclamation (USBR), Southern Nevada Water Authority (SNWA), Nevada Department of Wildlife (NDOW), U.S. Fish and Wildlife (USFWS), Clean Water Coalition (CWC), and U.S. Geological Survey (USGS) have set up monitoring programs to evaluate and gain information to help minimize the impacts or potential impacts of quagga mussels to their facilities and lake ecology. Current monitoring activities and anticipated environmental impacts are depicted in Figures 1 and 2. While the agencies have worked closely and …
Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Annual Report, Period Ending July 1, 2009, Margaret N. Rees
Limnological Studies
Project 1: Eighteen advisory team meetings were attended this year; technical input was provided as appropriate; and summaries were prepared and delivered to Kent Turner. The SCOP Selenium Management Plan has been reviewed and a report is in preparation.
Project 2: A formal report titled, Surface Water Monitoring for Indicator Bacteria in High-use Sites of the Lake Mead National Recreation Area, was delivered in the second quarter of this year. Subsequently, a poster presentation on this topic was delivered at the Lake Mead Science Symposium and a manuscript has been prepared for submission to the journal, Lake and Reservoir Management. …
Joint Fire Science Program – Lake Mead National Recreation Area: Revegetating Burned Arid Lands: Identifying Successful Native Species Using Trait And Competition Analysis, Quarterly Progress Report, April 1 — June 30, 2009, Margaret N. Rees
Fire Science
- Initiated a competitive hierarchy study.
- Monitored and maintained outplanting at Goodsprings.
- Completed more seed granivory trials at Goodsprings.
- Mentored student to completion of undergraduate research project.
- Monitored and maintained nursery plots.
- Revising article submitted to Journal of Arid Environments.
Water Quality Changes In A Constructed Wetland At The Springs Preserve In Las Vegas, Nevada, Aaron Mathis Miller
Water Quality Changes In A Constructed Wetland At The Springs Preserve In Las Vegas, Nevada, Aaron Mathis Miller
UNLV Theses, Dissertations, Professional Papers, and Capstones
The Springs Preserve near downtown Las Vegas, Nevada contains a seven-acre constructed wetland. Springs Preserve managers are planning to use water from the constructed wetland to irrigate creeks immediately north of the wetland. These creeks will be used by a variety ofaquatic wildlife, including endangered amphibians sensitive to harmful metalloids, such as selenium, lead, and arsenic.
In an attempt to answer toxicological questions about contaminant concentrations in the constructed wetland, three metals and metalloids (selenium, arsenic, and lead), two nutrients (nitrogen and phosphorus), and the major ionic species were analyzed at four sampling locations for aqueous concentrations, in two separate …
Distribution And Site Selection Of Le Conte's And Crissal Thrashers In The Mojave Desert: A Multi-Model Approach, Dawn Marie Fletcher
Distribution And Site Selection Of Le Conte's And Crissal Thrashers In The Mojave Desert: A Multi-Model Approach, Dawn Marie Fletcher
UNLV Theses, Dissertations, Professional Papers, and Capstones
Information on the distribution and habitat requirements of a species are critical components to the development of meaningful conservation plans. Such knowledge, however, is particularly difficult to obtain for species that are elusive and occur at low densities, such as the Le Conte's ( Toxostoma lecontei ) and Crissal (Toxostoma crissale ) thrashers. In association with a regional conservation plan, I evaluated the distribution and habitat selection of these thrashers within Clark County, Nevada in the eastern Mojave Desert. I used a call-broadcast approach to sample 432 stratified random locations, detecting Le Conte's thrashers at 45 locations and Crissal …
Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending April 1, 2009, Margaret N. Rees
Limnological Studies
Project 1: Technical input has been provided at two advisory team meetings attended this quarter.
Project 2: Surface Water Monitoring for Indicator Bacteria in High-use Sites of the Lake Mead National Recreation Area (poster) was presented at the Lake Mead Science Symposium; a journal article is in preparation.
Project 3: A draft document titled “Interagency Monitoring Action Plan (I-MAP): Quagga Mussels in Lakes Mead and Mohave” has been subdivided into four major sections and corresponding sub-groups have been formed to provide review and input. Six oral presentations related to quagga mussels were presented at the Lake Mead Science Symposium. Two …
Joint Fire Science Program – Lake Mead National Recreation Area: Revegetating Burned Arid Lands: Identifying Successful Native Species Using Trait And Competition Analysis, Quarterly Progress Report, January 1— March 31, 2009, Margaret N. Rees
Fire Science
• Monitored and watered native plants in nursery plots.
• Exotic grasses seeded into nursery plots.
• Nitrogen treatment applied to nursery plots.
• Granivory study trials performed each month and corresponding abstract submitted to ESA.
• Competitive hierarchy study germination trials are underway.
• Monitored seeding and outplanting experiments at Goodsprings.
• Submitted article to Mojave Applied Ecology Notes newsletter updating on JFS work.
• Mentoring UNLV undergraduate student in research project for ENV 492.
• Prepared presentation materials for two scientific meetings.
Athel (Tamarix Aphylla) And Athel Hybrid (Tamarix Aphyllax Tamarix Ramosissima)Establishment And Control At Lake Mead National Recreation Area, Carrie Norman, Curt Deuser, Joshua Hoines
Athel (Tamarix Aphylla) And Athel Hybrid (Tamarix Aphyllax Tamarix Ramosissima)Establishment And Control At Lake Mead National Recreation Area, Carrie Norman, Curt Deuser, Joshua Hoines
Lake Mead Science Symposium
Athel is a large evergreen ornamental tree that has been planted throughout the Southwest since the 1950’s. Athel was considered benign because it was thought to produce non-viable seed unlike its invasive relative, tamarisk. However, athel began establishing in the wild from seed on Lake Mead in 1983. Lake Mead NRA has been actively controlling athel since November 2004 along the high water mark of Lake Mead shoreline (439 miles) to prevent it from spreading throughout the Colorado River Drainage. The NPS contracts Nevada Conservation Corp crews and the Lake Mead Exotic Plant Management Team to implement the control efforts …