DOCSLIB.ORG

Sonoran Desert Research Center

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Sonoran Desert Research Center Powell, Halvorson, Schmidt In Cooperation with the University of Arizona, School of Natural Resources Vascular Plant and Vertebrate Inventory of Organ Pipe Cactus National Monument Vascular Plant and Vertebrate Inventory of Organ Pipe Cactus National Monument Plant and Vertebrate Vascular U.S. Geological Survey Southwest Biological Science Center 2255 N. Gemini Drive Flagstaff, AZ 86001 Open-File Report 2006-1076 Southwest Biological Science Center Open-File Report 2006-1076 March 2007 U.S. Department of the Interior U.S. Geological Survey National Park Service In cooperation with the University of Arizona, School of Natural Resources Plant and Vertebrate Inventory of Organ Pipe Cactus National Monument By Cecilia A. Schmidt, Brian F. Powell, and William L. Halvorson Open-File Report 2006-1076 March 2007 U.S. Geological Survey Southwest Biological Science Center Sonoran Desert Research Station University of Arizona U.S. Department of the Interior School of Natural Resources U.S. Geological Survey 125 Biological Sciences East National Park Service Tucson, Arizona 85721 U.S. Department of the Interior DIRK KEMPTHORNE, Secretary U.S. Geological Survey Mark Myers, Director U.S. Geological Survey, Reston, Virginia: 2007 For product and ordering information: World Wide Web: http://www.usgs.gov/pubprod Telephone: 1-888-ASK-USGS For more information on the USGS—the federal source for science about the Earth, its natural and living resources, natural hazards, and the environment: World Wide Web: http://www.usgs.gov Telephone: 1-888-ASK-USGS Suggested Citation Schmidt, C. A., B. F. Powell, and W. L. Halvorson. 2007. Vascular Plant and Vertebrate Inventory of Organ Pipe Cactus National Monument. USGS Open-File Report 2006-1076. U.S. Geological Survey, Southwest Biological Science Center, Sonoran Desert Research Station, University of Arizona, Tucson, AZ. Cover photo: Organ Pipe Cactus National Monument. Photograph by Brian Powell. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Printed on recycled paper ii Authors Cecilia A. Schmidt and Brian F. Powell School of Natural Resources 125 Biological Sciences East, Building 43 The University of Arizona Tucson, AZ 85721 William L. Halvorson USGS SBSC Sonoran Desert Research Station 125 Biological Sciences East, Building 43 The University of Arizona Tucson, AZ 85721 U.S. Geological Survey SBSC Sonoran Desert Research Station Personnel Charles van Riper III, Station Leader William L. Halvorson, Research Ecologist Cecil R. Schwalbe, Ecologist Michael R. Kunzmann, Ecologist (Emeritus) Kathryn Thomas, Ecologist Pamela Nagler, Physical Scientist Phil Rosen, Ecologist Program and Expertise Areas of USGS and UA Personnel Administration & Outreach Fire Management Cori Dolan Dennis Suhre Jennifer Meador Cori Dolan Wendy Parrish Bill Halvorson Emily Sherbrooke Charles van Riper III Invasive Species Research Patricia Guertin Avian Ecology Jim Malusa Claire Crow Phil Rosen Glenn Johnson Cecil Schwalbe Chris O’Brien Brent Sigafus Brian Powell Dennis Suhre Charles van Riper III Kathryn Thomas Data Management Inventory & Monitoring Brent Sigafus Patricia Guertin Bill Halvorson Ecology of Amphibians & Reptiles Pamela Nagler Kevin Baker Brian Powell Cristina Jones Cecilia Schmidt Dave Prival Phil Rosen Vegetation Mapping & Ecology Cecil Schwalbe Patricia Guertin Brent Sigafus Bill Halvorson Jim Malusa Kathryn Thomas USGS Southwest Biological Science Center http://sbsc.wr.usgs.gov USGS Southwest Biological Science Center, Sonoran Desert Research Station http://sbsc.wr.usgs.gov/sdrs iii iv Table of Contents Acknowledgements..................................................................................................................................vii Executive Summary..................................................................................................................................ix Chapter 1: Introduction and Overview of Ecological Research and Monitoring at Organ Pipe Cactus National Monument .......................................................................................1 Project Overview.................................................................................................................................1 Report Format and Data Organization...................................................................................................1 Ecological Research and Monitoring at the Monument...........................................................................1 Chapter 2: Monument Overview ...............................................................................................................5 Monument Area and History ................................................................................................................5 Natural Resources Overview ................................................................................................................7 Natural Resource Management Issues ...................................................................................................7 Chapter 3: Plants.......................................................................................................................................9 Data Used to Create Plant Species List..................................................................................................9 Results and Discussion ........................................................................................................................9 Inventory Completeness.....................................................................................................................10 Chapter 4: Amphibians and Reptiles .......................................................................................................11 Data Used to Create Herpetofaunal List ..............................................................................................11 Results and Discussion.......................................................................................................................11 Inventory Completeness.....................................................................................................................12 Chapter 5: Birds......................................................................................................................................13 Data Used to Create Bird List.............................................................................................................13 Results and Discussion ......................................................................................................................13 Inventory Completeness.....................................................................................................................14 Chapter 6: Mammals...............................................................................................................................15 Data Used to Create Mammal List......................................................................................................15 Results and Discussion ......................................................................................................................15 Inventory Completeness and Possible Species .....................................................................................15 Chapter 7: Literature Cited.....................................................................................................................17 v List of Tables Table 1. Summary results of vascular plant and vertebrate inventories at Organ Pipe Cactus NM. ...................ix Table 1.1. Museums that were queried (in 1998) for vertebrate voucher specimens with “Arizona” and “Organ Pipe Cactus National Monument” in the collection location.............................................2 Table 1.2. Components of the Organ Pipe Cactus National Monument Ecological Monitoring Program (EMP). ............................................................................................................................3 Table 2.1. Average monthly climate data for Organ Pipe Cactus National Monument, 1948–2004. ...................7 List of Figures Figure 2.1. Diagram of major ecological provinces of the southwestern United States and northwestern Mexico. .................................................................................................................................5 Figure 2.2. Location of Organ Pipe Cactus NM in relation to other parks in the Sonoran Desert Network of parks. .......................................................................................................................................6 Figure 2.3. Map of Organ Pipe Cactus NM showing topography and neighboring land ownership. ....................6 List of Appendices Appendix A. Plant species that have been observed or collected at Organ Pipe Cactus NM based on the list by Rutman (2005): ............................................................................................................25 Appendix B. Amphibian and reptile species recorded at Organ Pipe Cactus NM based on list by Rosen and Lowe (1996) and voucher specimens ( Appendix F). ....................................................38 Appendix C. Bird species recorded at Organ Pipe Cactus NM based on lists by Groschupf et al. (1988; Gros), Tibbitts and Dickson (2005; T&D), and Benson et al. (2001; BE). .............................40 Appendix D. Mammal species recorded at Organ Pipe Cactus NM based on
Load more

Recommended publications
  • Pima County Plant List (2020) Common Name Exotic? Source
    Pima County Plant List (2020) Common Name Exotic? Source McLaughlin, S. (1992); Van Abies concolor var. concolor White fir Devender, T. R. (2005) McLaughlin, S. (1992); Van Abies lasiocarpa var. arizonica Corkbark fir Devender, T. R. (2005) Abronia villosa Hariy sand verbena McLaughlin, S. (1992) McLaughlin, S. (1992); Van Abutilon abutiloides Shrubby Indian mallow Devender, T. R. (2005) Abutilon berlandieri Berlandier Indian mallow McLaughlin, S. (1992) Abutilon incanum Indian mallow McLaughlin, S. (1992) McLaughlin, S. (1992); Van Abutilon malacum Yellow Indian mallow Devender, T. R. (2005) Abutilon mollicomum Sonoran Indian mallow McLaughlin, S. (1992) Abutilon palmeri Palmer Indian mallow McLaughlin, S. (1992) Abutilon parishii Pima Indian mallow McLaughlin, S. (1992) McLaughlin, S. (1992); UA Abutilon parvulum Dwarf Indian mallow Herbarium; ASU Vascular Plant Herbarium Abutilon pringlei McLaughlin, S. (1992) McLaughlin, S. (1992); UA Abutilon reventum Yellow flower Indian mallow Herbarium; ASU Vascular Plant Herbarium McLaughlin, S. (1992); Van Acacia angustissima Whiteball acacia Devender, T. R. (2005); DBGH McLaughlin, S. (1992); Van Acacia constricta Whitethorn acacia Devender, T. R. (2005) McLaughlin, S. (1992); Van Acacia greggii Catclaw acacia Devender, T. R. (2005) Acacia millefolia Santa Rita acacia McLaughlin, S. (1992) McLaughlin, S. (1992); Van Acacia neovernicosa Chihuahuan whitethorn acacia Devender, T. R. (2005) McLaughlin, S. (1992); UA Acalypha lindheimeri Shrubby copperleaf Herbarium Acalypha neomexicana New Mexico copperleaf McLaughlin, S. (1992); DBGH Acalypha ostryaefolia McLaughlin, S. (1992) Acalypha pringlei McLaughlin, S. (1992) Acamptopappus McLaughlin, S. (1992); UA Rayless goldenhead sphaerocephalus Herbarium Acer glabrum Douglas maple McLaughlin, S. (1992); DBGH Acer grandidentatum Sugar maple McLaughlin, S. (1992); DBGH Acer negundo Ashleaf maple McLaughlin, S.
    [Show full text]
  • 3 Invasive Species in the Sonoran Desert Region
    3 Invasive Species in the Sonoran Desert Region 11 INVASIVE SPECIES IN THE SONORAN DESERT REGION Invasive species are altering the ecosystems of the Sonoran Desert Region. Native plants have been displaced resulting in radically different habitats and food for wildlife. Species like red brome and buffelgrass have become dense enough in many areas to carry fire in the late spring and early summer. Sonoran Desert plants such as saguaros, palo verdes and many others are not fire- adapted and do not survive these fires. The number of non-native species tends to be lowest in natural areas of the Sonoran Desert and highest in the most disturbed and degraded habitats. However, species that are unusually aggressive and well adapted do invade natural areas. In the mid 1900’s, there were approximately 146 non-native plant species (5.7% of the total flora) in the Sonoran Desert. Now non-natives comprise nearly 10% of the Sonoran Desert flora overall. In highly disturbed areas, the majority of species are frequently non-native invasives. These numbers continue to increase. It is crucial that we monitor, control, and eradicate invasive species that are already here. We must also consider the various vectors of dispersal for invasive species that have not yet arrived in Arizona, but are likely to be here in the near future. Early detection and reporting is vital to prevent the spread of existing invasives and keep other invasives from arriving and establishing. This is the premise of the INVADERS of the Sonoran Desert Region program at the Arizona-Sonora Desert Museum.
    [Show full text]
  • Inventory of Mammals at Walnut Canyon, Wupatki, and Sunset Crater National Monuments
    National Park Service U.S. Department of the Interior Natural Resource Program Center Inventory of Mammals at Walnut Canyon, Wupatki, and Sunset Crater National Monuments Natural Resource Technical Report NPS/SCPN/NRTR–2009/278 ON THE COVER: Top: Wupatki National Monument; bottom left: bobcat (Lynx rufus); bottom right: Wupatki pocket mouse (Perogna- thus amplus cineris) at Wupatki National Monument. Photos courtesy of U.S. Geological Survey/Charles Drost. Inventory of Mammals at Walnut Canyon, Wupatki, and Sunset Crater National Monuments Natural Resource Technical Report NPS/SCPN/NRTR—2009/278 Author Charles Drost U.S. Geological Survey Southwest Biological Science Center 2255 N. Gemini Drive Flagstaff, AZ 86001 Editing and Design Jean Palumbo National Park Service, Southern Colorado Plateau Network Northern Arizona University Flagstaff, Arizona December 2009 U.S. Department of the Interior National Park Service Natural Resource Program Center Fort Collins, Colorado The National Park Service, Natural Resource Program Center publishes a range of reports that address natural resource topics of interest and applicability to a broad audience in the National Park Service and others in natural resource management, including scientists, conservation and environmental constituencies, and the public. The Natural Resource Technical Report Series is used to disseminate results of scientific studies in the physical, biological, and social sciences for both the advancement of science and the achievement of the National Park Service mission. The series provides contributors with a forum for displaying comprehensive data that are often deleted from journals because of page limitations. All manuscripts in the series receive the appropriate level of peer review to ensure that the information is scientifically credible, technically accurate, appropriately written for the intended audience, and designed and published in a professional manner.
    [Show full text]
  • Excerpted From
    Excerpted from © by the Regents of the University of California. All rights reserved. May not be copied or reused without express written permission of the publisher. click here to BUY THIS BOOK CHAPTER ›3 ‹ ROOT STRUCTURE AND FUNCTION Joseph G. Dubrovsky and Gretchen B. North Introduction Structure Primary Structure Secondary Structure Root Types Development and Growth Indeterminate Root Growth Determinate Root Growth Lateral Root Development Root System Development Adaptations to Deserts and Other Arid Environments Root Distribution in the Soil Environmental Effects on Root Development Developmental Adaptations Water and Mineral Uptake Root Hydraulic Conductivity Mineral Uptake Mycorrhizal and Bacterial Associations Carbon Relations Conclusions and Future Prospects Literature Cited rocky or sandy habitats. The goals of this chapter are to re- Introduction view the literature on the root biology of cacti and to pres- From the first moments of a plant’s life cycle, including ent some recent findings. First, root structure, growth, and germination, roots are essential for water uptake, mineral development are considered, then structural and develop- acquisition, and plant anchorage. These functions are es- mental adaptations to desiccating environments, such as pecially significant for cacti, because both desert species deserts and tropical tree canopies, are analyzed, and finally and epiphytes in the cactus family are faced with limited the functions of roots as organs of water and mineral up- and variable soil resources, strong winds, and frequently take are explored. 41 (Freeman 1969). Occasionally, mucilage cells are found in Structure the primary root (Hamilton 1970).Figure3.1nearhere: Cactus roots are less overtly specialized in structure than Differentiation of primary tissues starts soon after cell are cactus shoots.
    [Show full text]
  • Tucson Cactus and Succulent Society Guide to Common Cactus and Succulents of Tucson
    Tucson Cactus and Succulent Society Guide to Common Cactus and Succulents of Tucson http://www.tucsoncactus.org/c-s_database/index.html Item ID: 1 Item ID: 2 Family: Cactaceae Family: Cactaceae Genus: Ferocactus Genus: Echinocactus Species: wislizenii Species: grusonii Common Name: Fishhook Barrel Common Name: Golden Barrel Habitat: Various soil types from 1,000 Cactus to 6,000 feet elevation from grasslands Habitat: Located on rolling hills to rocky mountainous areas. and cliffs. Range: Arizona, southwestern New Range: Limited to small areas in Mexico, limited extremes of western Queretaro, Mexico. The popula- Texas, Sonora, northwest Chihuahua tion had become very low in num- and northern Sinaloa, Mexico bers over the years but is just Care: An extremely easy plant to grow now beginning to increase due to in and around the Tucson area. It re- protective laws and the fact that Photo Courtesy of Vonn Watkins quires little attention or special care as this plant is now in mass cultiva- ©1999 it is perfectly at home in almost any tion all over the world. garden setting. It is very tolerant of ex- Photo Courtesy of American Desert Care: The Golden Barrel has slow- Description treme heat as well as cold. Cold hardi- Plants ly become one of the most pur- This popular barrel cactus is noted ness tolerance is at around 10 degrees chased plants for home landscape for the beautiful golden yellow farenheit. Description in Tucson. It is an easy plant to spines that thickly surround the Propagation: Propagation of this cac- This plant is most recognized by the grow and takes no special care.
    [Show full text]
  • APPENDIX D Biological Technical Report
    APPENDIX D Biological Technical Report CarMax Auto Superstore EIR BIOLOGICAL TECHNICAL REPORT PROPOSED CARMAX AUTO SUPERSTORE PROJECT CITY OF OCEANSIDE, SAN DIEGO COUNTY, CALIFORNIA Prepared for: EnviroApplications, Inc. 2831 Camino del Rio South, Suite 214 San Diego, California 92108 Contact: Megan Hill 619-291-3636 Prepared by: 4629 Cass Street, #192 San Diego, California 92109 Contact: Melissa Busby 858-334-9507 September 29, 2020 Revised March 23, 2021 Biological Technical Report CarMax Auto Superstore TABLE OF CONTENTS EXECUTIVE SUMMARY ................................................................................................ 3 SECTION 1.0 – INTRODUCTION ................................................................................... 6 1.1 Proposed Project Location .................................................................................... 6 1.2 Proposed Project Description ............................................................................... 6 SECTION 2.0 – METHODS AND SURVEY LIMITATIONS ............................................ 8 2.1 Background Research .......................................................................................... 8 2.2 General Biological Resources Survey .................................................................. 8 2.3 Jurisdictional Delineation ...................................................................................... 9 2.3.1 U.S. Army Corps of Engineers Jurisdiction .................................................... 9 2.3.2 Regional Water Quality
    [Show full text]
  • South American Cacti in Time and Space: Studies on the Diversification of the Tribe Cereeae, with Particular Focus on Subtribe Trichocereinae (Cactaceae)
    Zurich Open Repository and Archive University of Zurich Main Library Strickhofstrasse 39 CH-8057 Zurich www.zora.uzh.ch Year: 2013 South American Cacti in time and space: studies on the diversification of the tribe Cereeae, with particular focus on subtribe Trichocereinae (Cactaceae) Lendel, Anita Posted at the Zurich Open Repository and Archive, University of Zurich ZORA URL: https://doi.org/10.5167/uzh-93287 Dissertation Published Version Originally published at: Lendel, Anita. South American Cacti in time and space: studies on the diversification of the tribe Cereeae, with particular focus on subtribe Trichocereinae (Cactaceae). 2013, University of Zurich, Faculty of Science. South American Cacti in Time and Space: Studies on the Diversification of the Tribe Cereeae, with Particular Focus on Subtribe Trichocereinae (Cactaceae) _________________________________________________________________________________ Dissertation zur Erlangung der naturwissenschaftlichen Doktorwürde (Dr.sc.nat.) vorgelegt der Mathematisch-naturwissenschaftlichen Fakultät der Universität Zürich von Anita Lendel aus Kroatien Promotionskomitee: Prof. Dr. H. Peter Linder (Vorsitz) PD. Dr. Reto Nyffeler Prof. Dr. Elena Conti Zürich, 2013 Table of Contents Acknowledgments 1 Introduction 3 Chapter 1. Phylogenetics and taxonomy of the tribe Cereeae s.l., with particular focus 15 on the subtribe Trichocereinae (Cactaceae – Cactoideae) Chapter 2. Floral evolution in the South American tribe Cereeae s.l. (Cactaceae: 53 Cactoideae): Pollination syndromes in a comparative phylogenetic context Chapter 3. Contemporaneous and recent radiations of the world’s major succulent 86 plant lineages Chapter 4. Tackling the molecular dating paradox: underestimated pitfalls and best 121 strategies when fossils are scarce Outlook and Future Research 207 Curriculum Vitae 209 Summary 211 Zusammenfassung 213 Acknowledgments I really believe that no one can go through the process of doing a PhD and come out without being changed at a very profound level.
    [Show full text]
  • Lake Havasu City Recommended Landscaping Plant List
    Lake Havasu City Recommended Landscaping Plant List Lake Havasu City Recommended Landscaping Plant List Disclaimer Lake Havasu City has revised the recommended landscaping plant list. This new list consists of plants that can be adapted to desert environments in the Southwestern United States. This list only contains water conscious species classified as having very low, low, and low-medium water use requirements. Species that are classified as having medium or higher water use requirements were not permitted on this list. Such water use classification is determined by the type of plant, its average size, and its water requirements compared to other plants. For example, a large tree may be classified as having low water use requirements if it requires a low amount of water compared to most other large trees. This list is not intended to restrict what plants residents choose to plant in their yards, and this list may include plant species that may not survive or prosper in certain desert microclimates such as those with lower elevations or higher temperatures. In addition, this list is not intended to be a list of the only plants allowed in the region, nor is it intended to be an exhaustive list of all desert-appropriate plants capable of surviving in the region. This list was created with the intention to help residents, businesses, and landscapers make informed decisions on which plants to landscape that are water conscious and appropriate for specific environmental conditions. Lake Havasu City does not require the use of any or all plants found on this list. List Characteristics This list is divided between trees, shrubs, groundcovers, vines, succulents and perennials.
    [Show full text]
  • Targeting Biotypes of Dactylopius Tomentosus to Improve Effective Biocontrol of Cylindropuntia Spp
    Nineteenth Australasian Weeds Conference Targeting biotypes of Dactylopius tomentosus to improve effective biocontrol of Cylindropuntia spp. in Australia Peter K. Jones1, Royce H. Holtkamp2 and Michael D. Day1 1 Department of Agriculture, Fisheries and Forestry, GPO Box 267, Brisbane, Qld 4001, Australia 2 Department of Primary Industries, 4 Marsden Park Road, Calala, NSW 2340, Australia ([email protected]) Summary Seven Dactylopius tomentosus (Lamarck) Control strategies are mainly by herbicide applica- biotypes were collected from a range of Cylindrop- tion and physical removal. The latter is successful with untia spp. in Mexico, South Africa and United States small infestations and isolated plants. However, these of America (USA) and imported into quarantine fa- removed plants also require correct disposal by burn- cilities at the Ecosciences Precinct. Host range trials ing or burial to ensure new infestations do not occur. were conducted for each biotype and further assessed Biological control of Cylindropuntia spp. is a cost against the Cylindropuntia species that are naturalised effective and successful control strategy used in the in Australia to determine the most effective biotype for Republic of South Africa and Australia. Dactylopius each species. Host range was confined to the Cylindro- tomentosus (‘imbricata’ biotype) was imported into puntia for all seven biotypes. In the efficacy trials, C. Australia in 1925, as a biocontrol agent for C. imbri- imbricata (Haw.) F.M.Knuth was killed by the ‘imbri- cata. It is now widespread throughout areas where cata’ biotype within 16 weeks and C. kleiniae (DC.) C. imbricata is present and is assisting in its control F.M.Knuth died within 26 weeks.
    [Show full text]
  • Red Gap Ranch Biological Resource Evaluation
    RED GAP RANCH BIOLOGICAL RESOURCE EVALUATION Prepared for: Southwest Ground-water Consultants, Inc. Prepared by: WestLand Resources, Inc. Date: February 14, 2014 Project No.: 1822.01 TABLE OF CONTENTS 1. BACKGROUND AND OBJECTIVES ................................................................................................ 1 2. EXISTING ENVIRONMENT AND BIOLOGICAL RESOURCES ................................................... 2 2.1. Approach ...................................................................................................................................... 2 2.2. Physical Environment ................................................................................................................... 2 2.3. Biological Environment and Resources ....................................................................................... 3 3. SCREENING ANALYSIS FOR SPECIES OF CONCERN ................................................................ 5 3.1. Approach ...................................................................................................................................... 5 3.2. Screening Analysis Results .......................................................................................................... 7 3.2.1. USFWS-listed Species ...................................................................................................... 7 3.2.2. USFS Coconino National Forest Sensitive Species ........................................................ 15 3.2.3. USFS Management Indicator Species ............................................................................
    [Show full text]
  • Redalyc.Estrés Osmótico Y Germinación De Yucca Elata Y
    Revista Chapingo Serie Zonas Áridas E-ISSN: 2007-526X [email protected] Universidad Autónoma Chapingo México Prado-Tarango, David E.; Melgoza-Castillo, Alicia; Mata-González, Ricardo; Villarreal- Guerrero, Federico Estrés osmótico y germinación de Yucca elata y Menodora scabra, dos especies de plantas nativas del desierto Chihuahuense Revista Chapingo Serie Zonas Áridas, vol. XVI, núm. 1, enero-junio, 2017, pp. 39-44 Universidad Autónoma Chapingo Durango, México Disponible en: http://www.redalyc.org/articulo.oa?id=455552312002 Cómo citar el artículo Número completo Sistema de Información Científica Más información del artículo Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto Scientific article doi: http://dx.doi.org/doi:10.5154/r.rchsza.2017.01.002 Estrés osmótico y germinación de Yucca elata y Menodora scabra, dos especies de plantas nativas del desierto Chihuahuense Osmotic stress and germination of Yucca elata and Menodora scabra, two species of plants native to the desert of Chihuahua David E. Prado-Tarango*¹; Alicia Melgoza-Castillo²; Ricardo Mata-González¹; Federico Villarreal-Guerrero² ¹Oregon State University, Department of Animal and Rangeland Sciences, 120 Withycombe Hall, Corvallis, OR 97331, United States. 2Universidad Autónoma de Chihuahua, Facultad de Zootecnia y Ecología, Periférico Francisco R. Almada km 1, Zootecnia, 33820, Chihuahua, Chih., México. *Autor para correspondencia: [email protected] Resumen a propagación de plantas es esencial para la restauración de ecosistemas degradados. Las zonas áridas presentan especies vegetales altamente resistentes a la sequía como LYucca elata (Engelm.) Engelm.
    [Show full text]
  • Flora and Vegetation of the Mohawk Dunes, Arizona, Felger, Richard Stephen
    FLORA AND VEGETATION OF THE MOHAWK DUNES, ARIZONA Richard Stephen Felger Dale Scott Turner Michael F. Wilson Drylands Institute The Nature Conservancy Drylands Institute 2509 North Campbell, #405 1510 E. Fort Lowell 2509 North Campbell, #405 Tucson, AZ 85719, U.S.A. Tucson, AZ 85719, U.S.A. Tucson, AZ 85719, U.S.A. [email protected] ABSTRACT One-hundred twenty-two species of seed plants, representing 95 genera and 35 families are docu- mented for the 7,700 ha Mohawk Dune Field and its immediate surroundings, located in Yuma County, Arizona, USA. Three major habitats were studied: dunes, adjacent sand flats, and playa. The dunes (including interdune swales) support 78 species, of which 13 do not occur on the adjacent non-dune habitats. The adjacent non-dune habitats (sand flats and playa) support 109 species, of which 43 were not found on the dunes. The total flora has 81 annual species, or 66% of the flora. The dune flora has 63 annual (ephemeral) species, or 81% of the flora—one of the highest percentages of annuals among any regional flora. Of these dune annuals, 53 species (84%) develop during the cool season. No plant taxon is endemic to the Mohawk region. There are 8 dune, or sand adapted, endemics— Cryptantha ganderi, Dimorphocarpa pinnatifida, Dicoria canescens, Ditaxis serrata, Pleuraphis rigida, Psorothamnus emoryi, Stephanomeria schottii, Tiquilia plicata—all of which are found on nearby dune systems. Two of them (C. ganderi and S. schottii) are of limited distribution, especially in the USA, and have G2 Global Heritage Status Rank. There are four non-native species in the dune flora (Brassica tournefortii, Mollugo cerviana, Sonchus asper, Schismus arabicus), but only Brassica and Schismus seem to pose serious threats to the dune ecosystem at this time.
    [Show full text]