Open Access. Powered by Scholars. Published by Universities.®

Desert Ecology Commons

Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics

Institution
Keyword
Publication Year
Publication
Publication Type

Articles 91 - 120 of 362

Full-Text Articles in Desert Ecology

Mojave Applied Ecology Notes Summer 2010, Scott R. Abella, E. Cayenne Engel Jul 2010

Mojave Applied Ecology Notes Summer 2010, Scott R. Abella, E. Cayenne Engel

Mojave Applied Ecology Notes

Survey of monitoring and management for conservation of rare plants, Roadside restoration techniques in Joshua Tree NP, and an update on renewable energy developments in the Southwestern deserts


Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quartlerly Progress Report, Period Ending June 30, 2010, Margaret N. Rees Jun 2010

Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quartlerly Progress Report, Period Ending June 30, 2010, Margaret N. Rees

Wildlife Monitoring

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

  • All milestones and deliverables are on schedule
  • Translocation program completed for this year
  • Completed spring-season nocturnal monitoring surveys
  • Completed spring-season mark-recapture efforts at Blue Point Spring
  • Hosted RLFCT meeting

Project 2. Bald Eagle Winter Monitoring and Evaluation

  • This project has been completed and all associated deliverables have been met

Project 3. Peregrine Falcon Monitoring and Evaluation

  • This project has been completed and all final report deliverables have been met
  • Although not specified in the scope of work for this project, call-broadcast surveys were conducted this quarter to provide a limited assessment …


2010 Adaptive Management Report, Desert Conservation Program Jun 2010

2010 Adaptive Management Report, Desert Conservation Program

Publications (C)

The Desert Conservation Program administers the incidental take permit 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. This 2010 Adaptive Management Report reviews current data on land use trends, habitat loss, species status and plan implementation, and makes recommendations for the future.


Transforming Space Into Place: Development, Rock Climbing, And Interpretation In Red Rock Canyon National Conservation Area, 1960-2010, Megan Sharp Weatherly May 2010

Transforming Space Into Place: Development, Rock Climbing, And Interpretation In Red Rock Canyon National Conservation Area, 1960-2010, Megan Sharp Weatherly

UNLV Theses, Dissertations, Professional Papers, and Capstones

Though Americans tend to view wilderness as separate from nature, environmental historians have argued that wilderness is a cultural construct more than a quantifiable geographic category. Red Rock Canyon National Conservation Area (NCA), a 195,000-acre tract located west of Las Vegas, Nevada, is one such cultural construction. Since 1960, this BLM-managed parcel has served as a local and regional expression of broader, national trends in outdoor recreation, interpretation, and development and thereby forced visitors to engage (often unknowingly) in a cultural dialogue about consumerism, technology, and identity. With information from newspapers, archival collections, oral histories, and government documents, this thesis …


Assessing Invasive Plant Species As Threats In Mojave Desert Parks, Sara L. Mcpherson, Donovan J. Craig, Scott R. Abella Apr 2010

Assessing Invasive Plant Species As Threats In Mojave Desert Parks, Sara L. Mcpherson, Donovan J. Craig, Scott R. Abella

Graduate Research Symposium (2010 - 2017)

The invasion and persistence of exotic plant species threatens the natural features that national parks are designed to protect. For example, park managers have witnessed an increase in the frequency, extent and intensity of fires along with a reduction in native species richness and diversity. Many park managers are familiar with a suite of highly invasive plants, but lack a comprehensive and systematic way of prioritizing invasive plant species based on potential threats to the parks’ resources. We have entered into a collaborative project with the National Park Service’s Inventory and Monitoring program to develop an invasive plant early detection …


29 Years Of Vegetation Community Change Across Environmental Gradients In A Mojave Desert Mountain Range, Christopher L. Roberts, James S. Holland, Scott R. Abella Apr 2010

29 Years Of Vegetation Community Change Across Environmental Gradients In A Mojave Desert Mountain Range, Christopher L. Roberts, James S. Holland, Scott R. Abella

Graduate Research Symposium (2010 - 2017)

There is a great deal of uncertainty as to how biological communities respond to changes in land use and climate change, a situation particularly relevant in protected areas such as national parks that were designated to conserve specific biological features. Utilizing extant vegetation data sets with repeatable methodology can provide opportunities for insight into previous vegetation change and provide base line data for long-term monitoring projects useful for modeling vegetation community trajectories. We have relocated and resurveyed 106 sites from a vegetation community study initiated in 1979 in the Newberry Mountains, southern Nevada, within Lake Mead National Recreation Area managed …


Mojave Applied Ecology Notes Spring 2010, Anna San, Donovan J. Craig, Lindsay P. Chiquoine, Scott R. Abella, E. Cayenne Engel, Christina L. Lund, Jessica E. Spencer, Edward P. Weber Ph.D, Jill E. Craig Apr 2010

Mojave Applied Ecology Notes Spring 2010, Anna San, Donovan J. Craig, Lindsay P. Chiquoine, Scott R. Abella, E. Cayenne Engel, Christina L. Lund, Jessica E. Spencer, Edward P. Weber Ph.D, Jill E. Craig

Mojave Applied Ecology Notes

Seed removal rates of Sahara mustard by rodents and ants, Mojave Desert Network exotic invasive inventory, gypsum roadside disturbance restoration update, new paper out on post-fire plant establishment, UNLV establishes school of environmental and public affairs


Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending March 31, 2010, Margaret N. Rees Mar 2010

Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending March 31, 2010, Margaret N. Rees

Wildlife Monitoring

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

  • All milestones and deliverables are on schedule
  • Translocation program initiated for this year with egg mass collections in early spring
  • Tadpole rearing underway, first releases schedule for the end of March 2010
  • Diurnal egg mass surveys were completed at all sites
  • Nocturnal surveys initiated and in progress
  • Continuing mark-recapture efforts at Blue Point Spring initiated for spring season
  • Data transferred to County completed

Project 2. Bald Eagle Winter Monitoring and Evaluation

  • Project has essentially been completed
  • All final report deliverables were completed
  • Although not specified in the scope of work for …


Disturbance And Plant Succession In The Mojave And Sonoran Deserts Of The American Southwest, Scott R. Abella Mar 2010

Disturbance And Plant Succession In The Mojave And Sonoran Deserts Of The American Southwest, Scott R. Abella

Public Policy and Leadership Faculty Research

Disturbances such as fire, land clearing, and road building remove vegetation and can have major influences on public health through effects on air quality, aesthetics, recreational opportunities, natural resource availability, and economics. Plant recovery and succession following disturbance are poorly understood in arid lands relative to more temperate regions. This study quantitatively reviewed vegetation reestablishment following a variety of disturbances in the Mojave and Sonoran Deserts of southwestern North America. A total of 47 studies met inclusion criteria for the review. The time estimated by 29 individual studies for full reestablishment of total perennial plant cover was 76 years. Although …


Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Final Project Report, Scott R. Abella, Margaret N. Rees Mar 2010

Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Final Project Report, Scott R. Abella, Margaret N. Rees

Vegetation Monitoring

Vegetation Monitoring and Analysis at Lake Mead National Recreation Area (NRA) was funded by the Multi-Species Habitat Conservation Plan, Southern Nevada Public Land Management Act, Lower Colorado River Multi-Species Conservation Program, and Lake Mead NRA base-funds. This Cooperative Task Agreement was awarded to the Public Lands Institute (PLI) at the University of Nevada, Las Vegas (UNLV) on September 30, 2006 with the term ending December 31, 2009, as modified. The primary purpose of this Task Agreement was to work within an interagency framework towards the accomplishment of three main vegetation management objectives. These three goals were to: (1) inventory, research …


Water Source Partitioning For Shrubland Transpiration Using Innovative Field Methods, Dale A. Devitt, Michael Young, Matthew S. Lachniet, Jeremy Koonce, Amanda Wagner, Brian M. Bird, J. Healey Feb 2010

Water Source Partitioning For Shrubland Transpiration Using Innovative Field Methods, Dale A. Devitt, Michael Young, Matthew S. Lachniet, Jeremy Koonce, Amanda Wagner, Brian M. Bird, J. Healey

2010 Annual Nevada NSF EPSCoR Climate Change Conference

37 PowerPoint slides Convener: Franco Biondi, UNR & Michael Young, DRI Session 4: Ecological Change and Water Resources Abstract: -Climate change models predict a decline in precipitation over the next few decades throughout much of the southwest. -Such change has the potential to shift water uptake dynamics of phreatophytes -If groundwater pumping also occurs, the impact of climate change could be exacerbated. -A better understanding of the forces that drive the coupling and decoupling of phreatophytes to groundwater is needed.


Design And Status Of The Elevationl Transect And Monitoring Systems For Nevada’S Nsf Epscor Climate Change Research Program, Brian M. Bird, Scotty Strachan, David B. Simeral, Richard L. Jasoni Feb 2010

Design And Status Of The Elevationl Transect And Monitoring Systems For Nevada’S Nsf Epscor Climate Change Research Program, Brian M. Bird, Scotty Strachan, David B. Simeral, Richard L. Jasoni

2010 Annual Nevada NSF EPSCoR Climate Change Conference

15 PowerPoint slides Convener: Franco Biondi, UNR & Michael Young, DRI Session 4: Ecological Change and Water Resources Abstract: -Current status of Transects -Sheep Range Transect (5 sites) fully permitted through Fish and Wildlife Service. -Site access agreement acquired from the Long Now Foundation for Snake Range (sites 1, 2 and 3). -Snake Range site 4 access granted through the Nevada Land Conservatory. -Waiting for site permit approval on sites 8,9 and 6,7 from BLM and GBNP respectively. -Tower installed at North Las Vegas UWCC for testing of sensors and communications. -Installation of towers will begin winter 2010 at lower …


Biotic Responses To Climate Change In The Great Basin And Mojave Desert: Vegetation, David Charlet, Patrick Leary Feb 2010

Biotic Responses To Climate Change In The Great Basin And Mojave Desert: Vegetation, David Charlet, Patrick Leary

2010 Annual Nevada NSF EPSCoR Climate Change Conference

84 PowerPoint slides Convener: Franco Biondi, UNR & Michael Young, DRI Session 4: Ecological Change and Water Resources Abstract: -The Problem -To detect changes in vegetation as it responds to changes in climate, we must first know where the vegetation is now -GAP (Geographic Approach to Protection of Biodiversity) map --National project to map land cover throughout the US. --Nevada map (Edwards et al. 1996) -Southwest ReGAP map --Land cover map for southwestern US (Prior-Magee et al. 2007) to correct problems identified in GAP map


Geovisualization Of Ecological Data For Park Policy Support, Scott R. Abella, Haroon Stephen, Ross Guida Feb 2010

Geovisualization Of Ecological Data For Park Policy Support, Scott R. Abella, Haroon Stephen, Ross Guida

2010 Annual Nevada NSF EPSCoR Climate Change Conference

12 PowerPoint slides Convener: William Smith, UNLV Session 3: Policy, Decision Making, and Outreach Abstract: -Literature shows upward elevation shifts of biological species as a result of climate change -Effects of climate change expected to accelerate in coming decades -Concern both about species migrating out of parks and the potential inability of species to quickly adapt to the changing conditions within National Parks and other federal land boundaries


Research Poster: Clark County School District Involvement In The Nsf Epscor Program, Education Component, Aubrey M. Shirk, Larry Rudd, Paul Buck Feb 2010

Research Poster: Clark County School District Involvement In The Nsf Epscor Program, Education Component, Aubrey M. Shirk, Larry Rudd, Paul Buck

2010 Annual Nevada NSF EPSCoR Climate Change Conference

Research poster


Research Poster: Climate Change Science For Northern Nevada Educators, Melissa Slayden, Jacque Ewing-Taylor, Kelly Cannon Feb 2010

Research Poster: Climate Change Science For Northern Nevada Educators, Melissa Slayden, Jacque Ewing-Taylor, Kelly Cannon

2010 Annual Nevada NSF EPSCoR Climate Change Conference

Research poster


Research Poster: Climate Change Impacts To Groundwater, Springs Hydrology And Aquatic Communities Amargosa Desert And Death Valley National Park, Nevada And California, Terry Fisk, Greg Pohll, Don Sada, Mark Stone Feb 2010

Research Poster: Climate Change Impacts To Groundwater, Springs Hydrology And Aquatic Communities Amargosa Desert And Death Valley National Park, Nevada And California, Terry Fisk, Greg Pohll, Don Sada, Mark Stone

2010 Annual Nevada NSF EPSCoR Climate Change Conference

Research poster


Research Poster: Vegetation Change In The Newberry Mountains Of Southern Nevada, Ross Guida, William J. Smith Jr., Scott R. Abella Feb 2010

Research Poster: Vegetation Change In The Newberry Mountains Of Southern Nevada, Ross Guida, William J. Smith Jr., Scott R. Abella

2010 Annual Nevada NSF EPSCoR Climate Change Conference

Research poster


Research Poster: Tree Population Dynamics At Ash Meadows National Wildlife Refuge: Influences Of Environmental Stress And Disturbance, Sarah L. Karam, Peter J. Weisberg, Stephanie O. Sunderman Feb 2010

Research Poster: Tree Population Dynamics At Ash Meadows National Wildlife Refuge: Influences Of Environmental Stress And Disturbance, Sarah L. Karam, Peter J. Weisberg, Stephanie O. Sunderman

2010 Annual Nevada NSF EPSCoR Climate Change Conference

Research poster


Research Poster: Water Source Partitioning For Shrubland Transpiration Using Innovative Field Methods, Amanda Wagner, Dale A. Devitt, Michael Young, Matthew S. Lachniet, Jeremy Koonce, Brian M. Bird Feb 2010

Research Poster: Water Source Partitioning For Shrubland Transpiration Using Innovative Field Methods, Amanda Wagner, Dale A. Devitt, Michael Young, Matthew S. Lachniet, Jeremy Koonce, Brian M. Bird

2010 Annual Nevada NSF EPSCoR Climate Change Conference

Research poster


Research Poster: Biotic Responses To Climate Change In The Mojave Desert: Floristics, Patrick Leary, David Charlet Feb 2010

Research Poster: Biotic Responses To Climate Change In The Mojave Desert: Floristics, Patrick Leary, David Charlet

2010 Annual Nevada NSF EPSCoR Climate Change Conference

Research poster


Climate Change Education For Nevada, David M. Hassenzahl, Michael Collopy, John W. Farley, Paul Buck, Jacque Ewing-Taylor, Shama Perveen Feb 2010

Climate Change Education For Nevada, David M. Hassenzahl, Michael Collopy, John W. Farley, Paul Buck, Jacque Ewing-Taylor, Shama Perveen

2010 Annual Nevada NSF EPSCoR Climate Change Conference

42 PowerPoint slides Session 1: Education Convener: David Hassenzahl, UNLV Abstract: -Five Year Strategic Plan -Goal 6 - Create a scholarly environment to promote research skills and intellectual development for Nevada educators and students (K-12, undergraduate undergraduate, and graduate) -Primary Strategy - Develop educational infrastructure to train students at all levels and provide public outreach in climate change issues


Our Places To Tell Stories: Preliminary Program Springs Preserve, Public Lands Institute Feb 2010

Our Places To Tell Stories: Preliminary Program Springs Preserve, Public Lands Institute

Our Places to Tell Stories

Our Places Tell Stories is an innovative conference for educators and others working at public lands, schools, nature centers, museums, zoos, aquaria, and all nature and heritage rich places.

This list of presentations represents a preliminary program of sessions. A final program will be emailed to all registrants prior to the conference. Thank you for your interest, and we look forward to seeing you at the Springs!


An Inventory And Condition Survey Of The Western Australian Part Of The Nullarbor Region, Peter-Jon A. Waddell, A K. Gardner, P Hennig Jan 2010

An Inventory And Condition Survey Of The Western Australian Part Of The Nullarbor Region, Peter-Jon A. Waddell, A K. Gardner, P Hennig

Technical Bulletins

The inventory and condition survey of the Western Australian part of the Nullarbor region, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 2005 and 2007, describes and maps the natural resources of the region. This survey report provides a baseline record of the existence and condition of the area's natural resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The Nullarbor region has …


Beobachtungen Zu Unterscheidungsmerkmalen An Equidenschädeln, Speziell Zwischen Denen Von Mongolischen Dschiggetai Und Pferden, Roland Müller, Joachim Wussow Jan 2010

Beobachtungen Zu Unterscheidungsmerkmalen An Equidenschädeln, Speziell Zwischen Denen Von Mongolischen Dschiggetai Und Pferden, Roland Müller, Joachim Wussow

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

First paragraph:

Von STUBBE et.al. wurden zwischen 2001 und 2004 in der Südmongolei ca. 400 Schädel des Dschiggetai (Equus hemionus hemionus) gesammelt.


Temporal Dynamics Of Group Size And Sexual Segregation In Ibex, N. J. Singh, S. Amgalanbaatar, Richard P. Reading Jan 2010

Temporal Dynamics Of Group Size And Sexual Segregation In Ibex, N. J. Singh, S. Amgalanbaatar, Richard P. Reading

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Group size is an important variable describing behavioral ecology of animals. A variety of factors such as habitat characteristics, life history, spatio-temporal resource dynamics, population density, predation risk, competition with kin, and social learning often determine group size in large mammals. We studied temporal dynamics of group size in Siberian ibex (Capra sibirica) in a protected area in Mongolia. We measured monthly and yearly variations in typical group size and used the sexual segregation and aggregation statistic to assess sexual segregation. Ibex formed the largest groups in November and smallest groups in July. However, group sizes did not …


Characteristics Of Mongolian Wild Ass Hooves (Equus Hemionus Hemionus), Jan Gahsche, Michael Stubbe, Matthias Oppermann, N. Batsajchan, Annegret Stubbe Jan 2010

Characteristics Of Mongolian Wild Ass Hooves (Equus Hemionus Hemionus), Jan Gahsche, Michael Stubbe, Matthias Oppermann, N. Batsajchan, Annegret Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Measurements of hoof angles, hoof length, toe length, etc., and non-metrical hoof characters of Mongolian Wild Ass carcasses collected in in the South Gobi and in Bordzongijn-Gobi desert are presented. Khulan hooves are flat, wide and look big in relation to the animal’s dimensions. Remarkably is the wide variability in size, angles, in non metric characteristics like shape, color and the occurrence of particularly prolonged hoof wall and flaring walls. For example, toe angles are 52° for front and 54° for hind hooves on average. This measures and the suggested graphical model of the „ideal hoof shape“ can assist to …


Brutareale Und Brutbiologie Der Greifvogelarten Der Mongolei = Grid Mapping And Breeding Ecology Of Raptors In Mongolia, Michael Stubbe, Annegret Stubbe, Nayamsuren Batsaikhan, Sundev Gombobaatar, T. Stenzel, H. Von Wehrden, Sh. Boldbaatar, B. Nayambayar, D. Sumjaa, Ravčigijn Samjaa, N. Ceveenmjadag, A. Bold Jan 2010

Brutareale Und Brutbiologie Der Greifvogelarten Der Mongolei = Grid Mapping And Breeding Ecology Of Raptors In Mongolia, Michael Stubbe, Annegret Stubbe, Nayamsuren Batsaikhan, Sundev Gombobaatar, T. Stenzel, H. Von Wehrden, Sh. Boldbaatar, B. Nayambayar, D. Sumjaa, Ravčigijn Samjaa, N. Ceveenmjadag, A. Bold

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

This work summarizes the longtime ecological research of the German-Mongolian scientific cooperation regarding biodiversity studies in Central Asia, focusing on native raptor species (Aves: Falconiformes). There is included a short overview on the history of raptor research in Mongolia. One of the primary goals was the creation of distribution maps of breeding records based on definitive time and space coordinates. Additional data on the breeding biology amend the distribution data. Currently 43 raptor species are recorded for Mongolia. Whenever possible were also incorporated data from adjacent regions of Mongolia (China, Tuva, Burjatia, Pribaikalia), in order to embed the avifauna of …


Water Use Of Asiatic Wild Asses In The Mongolian Gobi, Petra Kaczensky, V. Dresley, D. Vetter, H. Otgonbayar, C. Walzer Jan 2010

Water Use Of Asiatic Wild Asses In The Mongolian Gobi, Petra Kaczensky, V. Dresley, D. Vetter, H. Otgonbayar, C. Walzer

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Water is a key resource for most large bodied mammals in the world’s arid areas. With the growing human population, access to water for wildlife often becomes compromised. Equids are typical inhabitants of semi-arid to arid rangelands and need regular access to fresh water. However, their water needs are difficult to study under free-ranging conditions. In this study we investigated Asiatic wild ass (Equus hemionus) use of permanent water points in the Great Gobi B Strictly Protected Area (SPA) in south-western Mongolia. We combined observational data from one specific water point with high frequency GPS location data from …


The Use Of High Frequency Gps Data To Classify Main Behavioural Categories In A Przewalski’S Horse In The Mongolian Gobi, Petra Kaczensky, Klaus Huber Jan 2010

The Use Of High Frequency Gps Data To Classify Main Behavioural Categories In A Przewalski’S Horse In The Mongolian Gobi, Petra Kaczensky, Klaus Huber

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Behavioral observations of free ranging animals can provide important insight into many aspects of their biology but are not without problems. The recent development of GPS technology allows to remotely collect high precision location data at fixed intervals. We tested whether it is possible to classify the behavior of a Przewalski’s horse in the Mongolian Gobi into Resting, Grazing and Moving based on GPS locations collected at 15 minute intervals by comparing GPS data with direct observations. Although behavioral categories lasting for 15 minutes could by fairly reliably separated based on the distances covered between successive fixes, almost half the …