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2005

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Articles 1 - 30 of 49

Full-Text Articles in Desert Ecology

Lake Mead National Recreation Area Vegetation Monitoring And Management: Quarterly Progress Report, Period Ending December 31, 2005, Margaret N. Rees Dec 2005

Lake Mead National Recreation Area Vegetation Monitoring And Management: Quarterly Progress Report, Period Ending December 31, 2005, Margaret N. Rees

Vegetation Monitoring

Executive Summary

  • Required reports on sticky buckwheat (Eriogonum viscidulum) and threecorner milkvetch (Astragalus geyeri var. triquetrus) to be submitted through appropriate protocols by December 30, 2005
  • Summary report on several other rare plants to be submitted through appropriate protocols by December 30, 2005
  • Invasive perennial pepperweed (also called tall whitetop; Lepidium latifolium) documented and treated by Weed Sentry within Black Canyon, Lake Mojave


Lake Mead National Recreation Area Sensitive Wildlife Species Monitoring And Analysis: Quarterly Progress Report, Period Ending December 31, 2005, Margaret N. Rees Dec 2005

Lake Mead National Recreation Area Sensitive Wildlife Species Monitoring And Analysis: Quarterly Progress Report, Period Ending December 31, 2005, Margaret N. Rees

Wildlife Monitoring

  • Topsoil replacement monitored at Willow Beach Wastewater Rehabilitation Project
  • Desert tortoise surveys and monitoring conducted for Northshore Road reconstruction projects, and desert tortoise training provided to 9 construction contractors.
  • Field work associated with the project to remove desert tortoise radio transmitters from animals on Mormon Mesa completed.
  • Weekly data processing for Desert Bighorn Sheep monitoring associated with the Hoover Dam Bypass Project continued.
  • Fall field surveys for relict leopard frogs completed (11 sites surveyed); last of this year’s head-started animals released; RLFCT meeting held.
  • Work started on a digital database (GIS) of Peregrine falcon observations.
  • Monthly shorebird surveys conducted (22 …


Red Rock Desert Learning Center Core Group Meeting: December 6, 2005, Red Rock Desert Learning Center Dec 2005

Red Rock Desert Learning Center Core Group Meeting: December 6, 2005, Red Rock Desert Learning Center

Reports (RRLC)

  1. Introductions & Announcements (5 min.)
  2. Approval of Minutes from October 18, 2005 Meeting (5 min.)
  3. Update on Project Schedule – Michael Reiland (10 min.)
    A. Utilities
    B. Water Line
    C. Parking
    D. Operator
  4. Update on Design Development – Michael Reiland (10 min.)
  5. Cultural Treatment Plan – Michael Reiland (10 min.)
  6. Environmental Assessment Update – Otak Inc. (10 min.)
  7. Curriculum Update – Jeanne Klockow (10 min.)
  8. Standing Reports (10 min.)
    A. BLM Capital Improvements – Michael Reiland
    B. Community Outreach – LaNelda Rolley
  9. Committee Reports (5 min.)
    A. Building Committee
    B. Design Oversight
    C. Educational Programs
    D. Fund-raising and Partnerships
    E. …


Red Rock Desert Learning Center Core Group Meeting: October 18, 2005, Red Rock Desert Learning Center Oct 2005

Red Rock Desert Learning Center Core Group Meeting: October 18, 2005, Red Rock Desert Learning Center

Reports (RRLC)

  1. Introductions & Announcements (5 min.)
  2. Approval of Minutes from September 20, 2005 Meeting (5 min.)
  3. Curriculum Update – Jeanne Klockow (15 min.)
  4. Review of Project Schedule – Michael Reiland (10 min.)
    A. Utilities
    B. Water Line
    C. Parking
    D. Operator
  5. Standing Reports (15 minutes)
    A. Line and Space Architects – Les Wallach/Henry Tom
    B. BLM Capital Improvements – Michael Reiland
  6. Committee Reports (5 min.)
    A. Building Committee – Angie Lara
    B. Design Oversight – David Frommer
    C. Educational Programs – Paul Buck
    D. Fund-raising and Partnerships – Blaine Benedict
    E. NEPA – Michael Johnson
    F. Operations – Jackson Ramsey
    G. …


Red Rock Desert Learning Center Core Group Meeting: September 20, 2005, Red Rock Desert Learning Center Sep 2005

Red Rock Desert Learning Center Core Group Meeting: September 20, 2005, Red Rock Desert Learning Center

Reports (RRLC)

  1. Introductions & Announcements (5 min.)
  2. Approval of Minutes from August 16, 2005 Meeting (5 min.)
  3. Discussion of Scope/Design Issues –Michael Reiland/David Frommer (30 min.)
  4. Cost Update – Michael Reiland (15 min.)
  5. Schedule Update – Michael Reiland (15 min.)
  6. Standing Reports (15 minutes)
    A. Line and Space Architects – Les Wallach/Henry Tom
    B. BLM Capital Improvements – Michael Reiland
    C. Community Outreach – Nancy Flagg
  7. Committee Reports (5 min.)
    A. Building Committee – Angie Lara
    B. Design Oversight – David Frommer
    C. Educational Programs – Paul Buck
    D. Fund-raising and Partnerships – Blaine Benedict
    E. NEPA – Michael Johnson
    F. Operations …


Red Rock Desert Learning Center: The Vision, Red Rock Desert Learning Center Sep 2005

Red Rock Desert Learning Center: The Vision, Red Rock Desert Learning Center

Oliver Ranch Project

A public meeting will be held to introduce the Red Rock Learning Center, the first outdoor education center for local fifth grade children in Southern Nevada. Designed to enhance math and science skills, the school will be built in the Red Rock Canyon National Conservation Area. It will feature a curriculum that teaches children about conservation and the natural world by increasing their knowledge and understanding of the Mojave Desert ecosystem.


Red Rock Desert Learning Center: The Vision, Red Rock Desert Learning Center Aug 2005

Red Rock Desert Learning Center: The Vision, Red Rock Desert Learning Center

Oliver Ranch Project

To instill stewardship and respect by increasing knowledge and understanding of the Mojave Desert ecosystems and cultures through a unique experiential discovery program.


Red Rock Desert Learning Center Core Group Meeting: August 16, 2005, Red Rock Desert Learning Center Aug 2005

Red Rock Desert Learning Center Core Group Meeting: August 16, 2005, Red Rock Desert Learning Center

Reports (RRLC)

  1. Introductions & Announcements (5 min.)
  2. Approval of Minutes from July 19, 2005 Meeting (5 min.)
  3. Matrix of Project Concerns and Resolutions – Michael Reiland (15 min.)
  4. Update on Project Timeline Schedule – Michael Reiland (10 min.)
    A. Status of Operator Process
    B. Status of Water Options
    C. Status of Draft EA Report
  5. Curriculum Development – Jeannie Klockow (10 min.)
    A. Wild Horse & Burro Curriculum
  6. Standing Reports (20 minutes)
    A. Line and Space Architects – Les Wallach/Henry Tom
    B. BLM Capital Improvements – Michael Reiland
    C. Community Outreach – Nancy Flagg
  7. Committee Reports (10 min.)
    A. Building Committee – Angie …


Red Rock Desert Learning Center Core Group Meeting: July 19, 2005, Red Rock Desert Learning Center Jul 2005

Red Rock Desert Learning Center Core Group Meeting: July 19, 2005, Red Rock Desert Learning Center

Reports (RRLC)

  1. Introductions & Announcements (5 min.)
  2. Approval of Minutes from May 17, 2005 Meeting (5 min.)
  3. Update on NEPA Process – Michael Johnson & Otak (30 min.)
    A. Overview of NEPA Process C. Status of interim EA report
    B. EA Timeline Schedule D. Status of cultural treatment plan
  4. Matrix of Project Concerns and Resolutions – Michael Reiland (15 min.)
  5. Review of Project Timeline Schedule – Michael Reiland (10 min.)
    A. Status of Request for Proposals C. Status of Nevada Power Grid
    B. Status of Water Options
  6. Curriculum Development – Jeannie Klockow (10 min.)
    A. Wild Horse & Burro Curriculum
  7. Community Outreach …


Red Rock Desert Learning Center Core Group Meeting: May 17, 2005, Red Rock Desert Learning Center May 2005

Red Rock Desert Learning Center Core Group Meeting: May 17, 2005, Red Rock Desert Learning Center

Reports (RRLC)

  1. Introductions (5 min.)
  2. Approval of Minutes from March 15, 2005 Meeting (5 min.)
  3. Review of Project Issues & Concerns (30 min.)
    A. Discussion of Strategic Project Review
  4. Update on Water Options and NEPA Timeline/Progress – Michael Reiland (15 min.)
  5. Core Curriculum Development: Progress Report – Jeannie Klockow (15 min.)
  6. Community Outreach – Nancy Flagg (15 min.)
    A. Key Messages
    B. List of environmental groups and media
    D. Revisit Core Group list
  7. Standing Reports (20 minutes)
    A. Line and Space Architects – Les Wallach/Henry Tom
    B. BLM Capital Improvements – Michael Reiland
  8. Committee Reports (10 min.)
    A. Building Committee – Angie …


Total Suspended Solids In Las Vegas Wash, Mika Koponen May 2005

Total Suspended Solids In Las Vegas Wash, Mika Koponen

UNLV Theses, Dissertations, Professional Papers, and Capstones

Erosion along the Las Vegas Wash (Wash) has increased steadily along with the rapidly increasing population. The focus of this study is to find out if there is a relationship between lower total suspended solids rate (TSS) and the construction of erosion control structures along the Wash. The study was conducted between 7/15/2003 and 11/29/2004.

The method was water sampling on 7 sites and the samples were analyzed at Southern Nevada Water Systems (SNWS) laboratory at Saddle Island in Boulder City. Additional water quality data was also collected using Quanta, a device measuring different parameters in water. In this study …


Analyzing The Effects Of Various Sign Types Used By The Bureau Of Land Management For Desert Cleanup And Restoration Projects, Christopher Linehan May 2005

Analyzing The Effects Of Various Sign Types Used By The Bureau Of Land Management For Desert Cleanup And Restoration Projects, Christopher Linehan

UNLV Theses, Dissertations, Professional Papers, and Capstones

What is the effectiveness of attempts to curb illegal dumping with prompts on signs posted in the area? Do positive friendly language prompts such as “Restoration in Progress Please Do Not Disturb” generate more positive attitudes and intentions towards illegal dumping problems, than less friendly prompts such as “No Dumping Allowed”?

Results, although inconclusive, did however show a slight trend towards the negative language signs.


Observed Omnivory In The Herbivorous Blue Tilapia (Oreochromis Aureus), Stephen M. Oliveira Jr. May 2005

Observed Omnivory In The Herbivorous Blue Tilapia (Oreochromis Aureus), Stephen M. Oliveira Jr.

UNLV Theses, Dissertations, Professional Papers, and Capstones

Gila seminuda, a native endangered species, and Oreochromis aureus, a nonnative invasive species, share the same habitat in the form of the Reid Gardner Power Plant intake ponds. The purpose of this study is to characterize the feeding habits of Oreochromis aureus within the Reid Gardner Power Plant intake ponds and address the potential predation habits of Oreochromis aureus. Stomach contents of O. aureus were identified and analyzed using chi-square and log-likelihood ratio techniques, with respect to mass, length, girth, gender, or spatial distribution of samples. Results showed omnivorous behavior with a 7.00% predatory/prey relationship, and no difference of feeding …


A Comparison Of Population Sizes And Number Of Captures For The Desert Woodrat (Neotoma Lepida) In Two Microhabitats In The Las Vegas Wash, Nevada, Jayson Barangan May 2005

A Comparison Of Population Sizes And Number Of Captures For The Desert Woodrat (Neotoma Lepida) In Two Microhabitats In The Las Vegas Wash, Nevada, Jayson Barangan

UNLV Theses, Dissertations, Professional Papers, and Capstones

Planned removal and eradication of saltcedar in the Las Vegas Wash, Nevada could potentially generate adverse impacts on present desert woodrat (Neotoma lepida) populations inhabiting the area. Consequently, research was conducted investigating population sizes of N. lepida in two distinct microhabitat types, saltcedar (Tamarix sp.) and mesquite/quailbush (Prosopis sp./Atriplex lentiformis). The results of this study will aid in gauging the effects of the changes in vegetation once restoration work is completed and assist with logistical scheduling for implementation of control measures. Mark-recapture field techniques were utilized for data collection from July 2002 to June 2003. Population estimates were calculated using …


Presentation To Mojave-Southern Great Basin Rac, Public Lands Institute Apr 2005

Presentation To Mojave-Southern Great Basin Rac, Public Lands Institute

Presentations (PLI)

University manages selected SNPLMA projects as determined by the four federal agencies. Projects must be:

  • Compatible with UNLV’s mission.
  • Enhance education and research.
  • Draw upon expertise of faculty, staff, and students.


Red Rock Desert Learning Center Core Group Meeting: March 15, 2005, Red Rock Desert Learning Center Mar 2005

Red Rock Desert Learning Center Core Group Meeting: March 15, 2005, Red Rock Desert Learning Center

Reports (RRLC)

  1. Introductions (5 min.)
  2. Approval of Minutes from January 18, 2005 Meeting (5 min.)
  3. Core Curriculum Development: Timeline and Progress Report – Jeannie Klockow (30 min.)
  4. Update on Water Testing – Bob Boyd (15 min.)
  5. A. Line and Space Architects – Les Wallach/Henry Tom
    B. UNLV/CESU – Nancy Flagg
    C. BLM – Michael Reiland
  6. Committee Reports (5 min.)
  7. Open Discussion / New Business (5 min.)


Cesu Agreements: Beyond Traditional Science Applications, Margaret N. Rees Mar 2005

Cesu Agreements: Beyond Traditional Science Applications, Margaret N. Rees

Presentations (PLI)

Partnering with four federal land-management agencies

  • Bureau of Land Management
  • National Park Service
  • U.S. Forest Service
  • U.S. Fish & Wildlife Service


Red Rock Desert Learning Center Core Group Meeting: January 18, 2005, Red Rock Desert Learning Center Jan 2005

Red Rock Desert Learning Center Core Group Meeting: January 18, 2005, Red Rock Desert Learning Center

Reports (RRLC)

  1. Introductions (5 min.)
  2. Approval of Minutes from November 16, 2004 Meeting (5 minutes)
  3. Presentation of Science Curriculum – Paul Buck (30 min.)
  4. Line and Space Architects
    Presentation of Schematic Designs– Les Wallach/Henry Tom (1 hour)
    Update on Design Timeline (10 min.)
  5. Standing Reports (10 minutes)
    A. UNLV/CESU – Nancy Flagg
    B. BLM – Michael Reiland
  6. Committee Reports (5 min.)
  7. Committee Meeting Schedule for 2005 (5 min.)
  8. Open Discussion / New Business (5 min.)


Analysis Of Molecular Variation In The Federally Endangered Astragalus Jaegerianus (Fabaceae, Papilionoideae): A Species With A Restricted Geographic Range, George Floyd Walker Jan 2005

Analysis Of Molecular Variation In The Federally Endangered Astragalus Jaegerianus (Fabaceae, Papilionoideae): A Species With A Restricted Geographic Range, George Floyd Walker

Theses Digitization Project

The purpose of this study is to investigate the level and distribution of genetic variation in Astragalus jaegerianus by using molecular markers. The objectives of the study are: to estimate levels of genetic variation within and among populations of Astragalus jaegerianus; to test the hypothesis that levels and patterns of genetic variation in species of restricted ranges and few individuals is low and partitioned at the population level; and to discern whether, or how well, genetic partitioning of Lane Mountain milk vetch correlates with its geographic partitioning in the field.


An Inventory Of Rangelands In Part Of The Broome Shire, Western Australia, W E. Cotching Jan 2005

An Inventory Of Rangelands In Part Of The Broome Shire, Western Australia, W E. Cotching

Technical Bulletins

The inventory of rangelands in part of the Broome Shire in Western Australia was undertaken by DAFWA between 1989 and 1990. It describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s 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 survey of part of the Broome Shire …


Zur Nahrungsökologie Des Uhus Bubo Bubo In Der Mongolei = Feeding Ecology Of The Eagle Owl Bubo Bubo In Mongolia, Thomas Hoffmann, Michael Stubbe, D. Heidecke, R. Piechocki, R. Samjaa, J. Erfurt, D. Sumjaa Jan 2005

Zur Nahrungsökologie Des Uhus Bubo Bubo In Der Mongolei = Feeding Ecology Of The Eagle Owl Bubo Bubo In Mongolia, Thomas Hoffmann, Michael Stubbe, D. Heidecke, R. Piechocki, R. Samjaa, J. Erfurt, D. Sumjaa

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

This paper presents further results on the food ecology of the eagle owl in western Mongolia for the years 1984 to 1992. Additional to the already known sites we investigated two new resting places. At least 27 mammal and 17 bird species were recorded. The results confirm previous studies. Small to medium sized mammals (Cricetidae, Dipodidae, Arvicolidae) dominate the prey of the eagle owl whereas birds and invertebrates are less important.


Ecology Of Soil Microarthropods In Gobi Gurvan Saykhan Mountains, Southern Mongolia, Tsedev Bolortuya, Badamdorj Bayartogtokh Jan 2005

Ecology Of Soil Microarthropods In Gobi Gurvan Saykhan Mountains, Southern Mongolia, Tsedev Bolortuya, Badamdorj Bayartogtokh

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

In the present paper, we describe the community structure, species diversity, population density, and the character of distribution of soil microarthropods of the Gobi Gurvan Saykhan mountains. In total 45 species of soil microarthropods belonging to 37 genera and 24 families were identified. Twenty-seven species of soil microarthropods belonging to 25 genera and 20 families were found in the Züün Saykhan, 31 species belonging to 27 genera and 19 families in the Dund Saykhan. Oribatid mites are the dominant group (35 species = 77.8% of total species richness), while mesostigmatid mites account for 7 species (15.6 %). Other groups are …


Avifaunistische Beobachtungen Im Westchentej, Ulrich Zöphel, Jochen Schulenberg, Wolf-Dieter Busching, Ingolf Todte Jan 2005

Avifaunistische Beobachtungen Im Westchentej, Ulrich Zöphel, Jochen Schulenberg, Wolf-Dieter Busching, Ingolf Todte

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

This paper reports the results of bird observations at four study sites with many different habitats in the western Chentej-mountains (forest steppe, taiga) at the end of the spring-migration and the beginning of the breeding time. Altogether 134 bird species were observed, about 107 of which are probably breeding birds. Additional birds were caught using 6 mist-nets. In this way 98 birds of 21 species were caught, measured, and ringed. Furthermore feathers have been collected (molting feathers and near two breeding places of Accipiter nisus).

The bird fauna of the larch forests shows a high species richness (108 species), …


Types Of Areas And The Origin Of Black Flies Fauna In Mongolia (Diptera: Simuliidae), Josef Halgoš Jan 2005

Types Of Areas And The Origin Of Black Flies Fauna In Mongolia (Diptera: Simuliidae), Josef Halgoš

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

The survey of Mongolian Black Flies species (Diptera: Simuliidae) is given in the presented work. The classification based on Emelyanov (1974) and Gorodkov (1984) appeared to be as most advantageous one. Black Flies species found on the Mongolian territory up to now were classified according to the character of their distribution among 5 groups: Holoarctic species (7 species), Eurasian (15), Eastern Palaearctic (20), Turanian-Mediterranean (7), Mongolian endemic species (8). Individual groups are divided according to the type of area into smaller subgroups. The zoogeographical analysis has shown big similarity with Black Flies zoogeography in Siberia and Far East (in percentage …


Reproductive Ecology Of Two Common Woody Species, Juniperus Sabina And Artemisia Santolinifolia, In Mountain Steppes Of Southern Mongolia, Katrin Ronnenberg Jan 2005

Reproductive Ecology Of Two Common Woody Species, Juniperus Sabina And Artemisia Santolinifolia, In Mountain Steppes Of Southern Mongolia, Katrin Ronnenberg

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

The present study describes the reproductive ecology of the prostrate shrub Juniperus sabina and the dwarf shrub Artemisia santolinifolia in dry mountain steppes of southern Mongolia. Whereas stands of the juniper are located at the drought limit of the genus’ distributional range, the genus Artemisia is typical of central Asian drylands. Both species produce large numbers of reproductive organs. For Juniperus sabina, however, only 2.5% of the morphologically intact seeds were found to be viable. Correspondingly, neither seedlings nor saplings were found in the field, and recruitment by reseeding happens at most rarely under the present climatic conditions.

Instead, …


Beaver Research In The Uvs Nuur Region, Michael Stubbe, N. Dawaa, R. Samjaa, Annegret Stubbe, A. P. Saveljev, D. Heidecke, D. Sumjaa, H. Ansorge, S. Shar, J.-F. Ducroz Jan 2005

Beaver Research In The Uvs Nuur Region, Michael Stubbe, N. Dawaa, R. Samjaa, Annegret Stubbe, A. P. Saveljev, D. Heidecke, D. Sumjaa, H. Ansorge, S. Shar, J.-F. Ducroz

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

In 1985, 1988, and 2002 Castor fiber birulai was introduced to the Tes Gol of the Uvs Nuur basin in North-western Mongolia. The beavers migrated through the Republic of Tyva and settled in the middle part of Tes Gol near the Tyvinian-Mongolian border. About 10 colonies were recorded in this region in 2002. Strict protection of Castor fiber birulai has to be ensured in Mongolia and the Republic of Tyva in future.


Vergleichende Untersuchungen Zur Besiedlung Von Ausgewählten Hochgebirgen Der Nordwest- Und Südmongolei Durch Laufkäfer (Coleoptera: Carabidae) = Comparing Investigations Of The Distribution Of Carabid Beetles (Coleoptera: Carabidae) In Different High Mountain Regions In Northwest- And South Mongolia, Peer Schnitter Jan 2005

Vergleichende Untersuchungen Zur Besiedlung Von Ausgewählten Hochgebirgen Der Nordwest- Und Südmongolei Durch Laufkäfer (Coleoptera: Carabidae) = Comparing Investigations Of The Distribution Of Carabid Beetles (Coleoptera: Carabidae) In Different High Mountain Regions In Northwest- And South Mongolia, Peer Schnitter

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

In the years 1977-1979 and 1986 two high mountain regions of Mongolia are observed, especially in regard of the carabid fauna within different altitudes. In one of the investigation areas--the mountains of Charchiraa in Northwest-Mongolia the first transect with any plots was arranged from the Mount Suslan-Chamar to the salt lake Uvs Nuur. The second transect in the mountains of Ich-bogd in South-Mongolia starts at the Mount Baruun-bogd and reaches the salt lake Orog Nuur. The species combinations are very different, only some species could be found in both areas. The carabid coenoses and their distribution within the different altitudes …


Das Arteninventar Der Avifauna Der Mongolei Während Einer Nord-Süd-Durchquerung 1997, Tobias Stenzel, Michael Stubbe, R. Samjaa, Annegret Stubbe, C. Dulamsuren Jan 2005

Das Arteninventar Der Avifauna Der Mongolei Während Einer Nord-Süd-Durchquerung 1997, Tobias Stenzel, Michael Stubbe, R. Samjaa, Annegret Stubbe, C. Dulamsuren

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

Here we present a detailed report on bird biodiversity of ecosystems along a North-South transect through Mongolia in 1997whic h serves as a guideline for further research projects and training for students in all Mongolian vegetation zones from northern steppes to southern deserts.

Two hundred fifty-five bird species were observed between 21st of July and 10th of August 1997. The main study sites were located in the North the Selenge-Orchon-basin with meadows and dune woodlands 15 km southern from Suchbaatar, the Middle Gobi-Aimag with desert steppes and sajrs (covered with Ulmus pumila) and in the Bordzongijn-gobi in the South …


First Results Of Wild Ass Research In The South Gobi Aymag/Mongolia In 2003 And 2004, Annegret Stubbe, Michael Stubbe, N. Batsajchan, R. Samjaa, S. Doržderem Jan 2005

First Results Of Wild Ass Research In The South Gobi Aymag/Mongolia In 2003 And 2004, Annegret Stubbe, Michael Stubbe, N. Batsajchan, R. Samjaa, S. Doržderem

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

The population of the Mongolian wild ass belongs to the nominate form Equus hemionus hemionus described by Pallas in 1775. This species is adapted to semidesert habitats in the Gobi region and is listed in the Red Book of Mongolia as well as on appendix I of the Washington Convention (CITES). Mapping of the northern border of the distributional range showed a remarkable decrease in size in comparison to the maps of Murzaev (1954) or Bannikov (1954). The pressure of civilization, settlements, motorization, and increasing numbers of domestic livestock in connection with the occupation of water resources and illegal hunting …


Is Degradation A Major Problem In Semi-Desert Environments Of The Gobi Region In Southern Mongolia?, Karsten Wesche, Vroni Retzer Jan 2005

Is Degradation A Major Problem In Semi-Desert Environments Of The Gobi Region In Southern Mongolia?, Karsten Wesche, Vroni Retzer

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

This paper tests predictions derived from the non-equilibrium theory of rangeland science. Data were collected in livestock enclosures situated in the relatively moist desert steppes of the Gobi Gurvan Saykhan region of southern Mongolia from 2000 to 2003. Plant community composition and species’ richness in enclosures showed clear differences between years, but these were equally strong in ungrazed controls. Thus, changes were mainly attributed to differences in precipitation between years as opposed to grazing, as no significant effects thereof were detected. This was also confirmed by data on above-ground standing biomass. This changed tremendously over the years, with differences between …