DOCSLIB.ORG

Ecology of the Amphibians and Reptiles at Organ Pipe Cactus National Monument, Arizona

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Ecology of the Amphibians and Reptiles at Organ Pipe Cactus National Monument, Arizona 1 Ecology of the Amphibians and Reptiles at Organ Pipe Cactus National Monument, Arizona Philip C. Rosen and Charles H. Lowe Technical Report No. 53 April 1996 National Biological Service Cooperative Park Studies Unit School of Renewable Natural Resources 125 Biological Sciences East The University of Arizona Tucson, Arizona 85721 National Park Service Organ Pipe Cactus National Monument Route 1, Box 100 Ajo, Arizona 85321 2 3 Contents List of Figures................................................................................................................................ iv List of Tables ................................................................................................................................. vi Acknowledgements ..................................................................................................................... viii Abstract ......................................................................................................................................... ix Introduction .....................................................................................................................................1 General Introduction to the Project ........................................................................................1 Overview of Herpetofauna on the Monument .......................................................................2 Ecology and Conservation of Amphibians and Reptiles at Organ Pipe Cactus National Monument .........................................................................................3 Criteria for the Red List .........................................................................................................3 Toads(Anurans) ......................................................................................................................3 Turtles and Tortoises (Chelonians) ........................................................................................7 Lizards and Snakes (Squamates) .........................................................................................10 Lizard Monitoring......................................................................................................................... 45 Data Handling, Analytical Procedures, and Baseline Results ...............................................45 Site-specific Results on Intensive Study Areas .....................................................................66 Recommendations .........................................................................................................................99 Toads(Anurans) .....................................................................................................................99 Turtles and Tortoises (Chelonians).........................................................................................99 Lizards and Snakes (Squamates) .........................................................................................100 Literature Cited ...........................................................................................................................103 Appendices Appendix 1. Summary of Species Occurrence and Frequency ..........................................106 Appendix 2. Checklist of Amphibians and Reptiles ..........................................................133 Appendix 3. Red List for Amphibians and Reptiles ..........................................................136 iii Figures Figure 1. Three Major Underlying Features of Desert-landscape Structure ..............................13 Figure 2. Predominating Soil Textures and Particle-size Distribution in the Subsystems of a Desert Ecosystem Unit .....................................................................13 Figure 3. Ecological Pattern in Changes of the Ophiofauna ......................................................19 Figure 4. Histographics of Time of Snake Activity on Route 85 ...............................................33 Figure 5. Two Graphical Models of Snake Highway-mortality on Route 85 ............................41 Figure 6. Annual Means of the Peak Values for Each Lizard Line Transect .............................49 Figure 7. Regression of Species Diversity (H') on Species Richness (N) for Lizard Population Assemblages ..............................................................................................50 Figure 8. Lizard Line-transect Results by Habitat Type ............................................................53 Figure 9. Short-term Effect of Reduced Rainfall on Lizard Activity .........................................54 Figure 10. Time-constrained Search Results in Macrohabitats along the Desert Slope Gradient .......................................................................................................................55 Figure 11. Time-constrained Search Results for All Diurnal Lizard Species over the Duration of a Drought on a Lower Bajada Site ..........................................................60 Figure 12. Population Age Structure of the Indicator (Index) Lizard Species, Western Whiptail on Valley Floor Floodplain and on Bajada ..................................................61 Figure 13. Changes in Population Age-structure of Western Whiptail Lizards over the Duration of a Drought at a Lower Bajada Site ...........................................................62 Figure 14. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for Aguajita Wash Site .....................................................................................71 Figure 15. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for Alamo Canyon Site.......................................................................................... 73 Figure 16. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for Armenta Ranch Site ....................................................................................75 iv Figure 17. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for Burn Site ......................................................................................................77 Figure 18. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for Creosotebush Site ........................................................................................79 Figure 19. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for Dos Lomitas Site .......................................................................................81 Figure 20. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for East Armenta Site .......................................................................................83 Figure 21. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for Growler Canyon Site ....................................................................................85 Figure 22. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for Lizard Grid Site .........................................................................................87 Figure 23. Trend of Lizard Abundance over 6 Years at Pozo Nuevo Site ...................................90 Figure 24. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for Pozo Nuevo Site ..........................................................................................91 Figure 25. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for Salsola Site ..................................................................................................93 Figure 26. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for Senita Basin Site .......................................................................................95 Figure 27. Herpetology Project Results from Intensive Lizard Monitoring Study Areas for Vulture Site ..............................................................................................97 v Tables Table 1. Anuran Breeding Localities Identified at or Adjacent to Organ Pipe Cactus National Monument ................................................................................................6 Table 2. Lizard and Snake Species Turnover at the Rockslope-bajada Interface ...............11 Table 3. Lizard and Snake Species Turnover Between Valley-bottom Lowermost-bajadas and Upper-middle Bajadas ....................................................14 Table 4. Habitat Segregation within Snake Communities ..................................................16 Table 5. Highway Mortality in Snakes on Route 85............................................................27 Table 6. Distances Covered During Quantitative Road-cruising for Snake Mortality on Route 85............................................................................................................30 Table 7. Data for Snakes Found "Live on Road" During Quantitative Road-cruising for Snake Mortality on Route 85 ..........................................................................36 Table 8. Data for Snakes Found "Dead on Road" During Quantitative Road-cruising for Snake Mortality on Route 85 ...................................................38 Table 9. Summary and Analysis of Data Collected During Quantitative Road-cruising for Snake Mortality on Route 85....................................................40 Table 10. Peak Values and Mean Measured Abundances of Lizards on the Standardized Lizard
Load more

Recommended publications
  • Xenosaurus Tzacualtipantecus. the Zacualtipán Knob-Scaled Lizard Is Endemic to the Sierra Madre Oriental of Eastern Mexico
    Xenosaurus tzacualtipantecus. The Zacualtipán knob-scaled lizard is endemic to the Sierra Madre Oriental of eastern Mexico. This medium-large lizard (female holotype measures 188 mm in total length) is known only from the vicinity of the type locality in eastern Hidalgo, at an elevation of 1,900 m in pine-oak forest, and a nearby locality at 2,000 m in northern Veracruz (Woolrich- Piña and Smith 2012). Xenosaurus tzacualtipantecus is thought to belong to the northern clade of the genus, which also contains X. newmanorum and X. platyceps (Bhullar 2011). As with its congeners, X. tzacualtipantecus is an inhabitant of crevices in limestone rocks. This species consumes beetles and lepidopteran larvae and gives birth to living young. The habitat of this lizard in the vicinity of the type locality is being deforested, and people in nearby towns have created an open garbage dump in this area. We determined its EVS as 17, in the middle of the high vulnerability category (see text for explanation), and its status by the IUCN and SEMAR- NAT presently are undetermined. This newly described endemic species is one of nine known species in the monogeneric family Xenosauridae, which is endemic to northern Mesoamerica (Mexico from Tamaulipas to Chiapas and into the montane portions of Alta Verapaz, Guatemala). All but one of these nine species is endemic to Mexico. Photo by Christian Berriozabal-Islas. amphibian-reptile-conservation.org 01 June 2013 | Volume 7 | Number 1 | e61 Copyright: © 2013 Wilson et al. This is an open-access article distributed under the terms of the Creative Com- mons Attribution–NonCommercial–NoDerivs 3.0 Unported License, which permits unrestricted use for non-com- Amphibian & Reptile Conservation 7(1): 1–47.
    [Show full text]
  • Zootaxa, a New Species of Night-Lizard of the Genus Lepidophyma
    Zootaxa 1750: 59–67 (2008) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ ZOOTAXA Copyright © 2008 · Magnolia Press ISSN 1175-5334 (online edition) A new species of night-lizard of the genus Lepidophyma (Squamata: Xantusiidae) from the Cuicatlán Valley, Oaxaca, México LUIS CANSECO-MÁRQUEZ1, GUADALUPE GUTIÉRREZ-MAYEN2 & ANDRÉS ALBERTO MENDOZA-HERNÁNDEZ1 1Departamento de Biología Evolutiva, Museo de Zoología, Facultad de Ciencias, Universidad Nacional Autónoma de México, A.P. 70-399, C. P. 04510, México, D. F., México 2Escuela de Biología, Laboratorio de Herpetología, Benemérita Universidad Autónoma de Puebla, C.P. 72570, Puebla, Puebla, Méx- ico Abstract A new species of Lepidophyma from the Biosphere Reserve area of Tehuacan-Cuicatlan, Oaxaca, Mexico, is described. This new species, Lepidophyma cuicateca sp. nov., is known from two areas in the Cuicatlan Valley. Lepidophyma cuicateca sp. nov. is a member of the Lepidophyma gaigeae species Group and is characterized by its small body size, small size of tubercular body scales, poorly differentiated caudal whorls and interwhorls, and relatively large dorsal, ven- tral and gular scales. It lives in shady places, below rocks along the Apoala River, and is commonly found in plantain, sapodilla, cherimoya, mango and coffee plantations, as well as tropical deciduous forest. The description of L. cuicateca sp. nov. increases the number of species in the L. gaigeae Group to five. Key words: Squamata, Lepidophyma gaigeae Group, Lepidophyma cuicateca sp. nov., new species, Xantusiidae, Mex- ico, Oaxaca Resumen Se describe una nueva especie de Lepidophyma para la parte oaxaqueña de la reserva de la biosfera de Tehuacán- Cuicatlán. Esta especie es conocida para dos áreas de la Cañada de Cuicatlán.
    [Show full text]
  • Reflectance of Sexually Dichromatic Uvblue Patches Varies During The
    bs_bs_banner Biological Journal of the Linnean Society, 2014, 113, 556–569. With 3 figures Reflectance of sexually dichromatic UV-blue patches varies during the breeding season and between two subspecies of Gallotia galloti (Squamata: Lacertidae) MARTHA L. BOHÓRQUEZ-ALONSO and MIGUEL MOLINA-BORJA* Grupo de investigación ‘Etología y Ecología del Comportamiento’, Departamento de Biología Animal, Facultad de Biología, Universidad de La Laguna, Tenerife, Canary Islands, Spain Received 17 February 2014; revised 28 April 2014; accepted for publication 29 April 2014 Body coloration is sexually dimorphic in many vertebrate species, including lizards, in which males are often more conspicuous than females. A detailed analysis of the relative size of coloured patches and their reflectance, including the ultraviolet (UV) range, has rarely been performed. In the present work we quantified sexual dimorphism in body traits and surface area of all lateral patches from adult females and males of two subspecies of Gallotia galloti (G. g. galloti and G. g. eisentrauti). We also analysed the magnitude of sexual dichromatism in the UV-visible reflectance of such patches and the changes in patch size and brightness during the reproductive season (April–July). Males had significantly larger patch areas (relative to their snout-vent length) and higher brightness (mainly in the UV-blue range) than did females in both subspecies. The comparison of relative patch areas among months did not reach statistical significance. However, patch brightness significantly changed during the breeding season: that of the UV-blue (300–495 nm) range from lizards of the two subspecies was significantly larger in June than in April, while brightness in the 495–700 nm range in G.
    [Show full text]
  • Ecol 483/583 – Herpetology Lab 3: Amphibian Diversity 2: Anura Spring 2010
    Ecol 483/583 – Herpetology Lab 3: Amphibian Diversity 2: Anura Spring 2010 P.J. Bergmann & S. Foldi (Modified from Bonine & Foldi 2008) Lab objectives The objectives of today’s lab are to: 1. Familiarize yourself with Anuran diversity. 2. Learn to identify local frogs and toads. 3. Learn to use a taxonomic key. Today’s lab is the second in which you will learn about amphibian diversity. We will cover the Anura, or frogs and toads, the third and final clade of Lissamphibia. Tips for learning the material Continue what you have been doing in previous weeks. Examine all of the specimens on display, taking notes, drawings and photos of what you see. Attempt to identify the local species to species and the others to their higher clades. Quiz each other to see which taxa are easy for you and which ones give you troubles, and then revisit the difficult ones. Although the Anura has a conserved body plan – all are rather short and rigid bodied, with well- developed limbs, there is an incredible amount of diversity. Pay close attention to some of the special external anatomical traits that characterize the groups of frogs you see today. You will also learn to use a taxonomic key today. This is an important tool for correctly identifying species, especially when they are very difficult to distinguish from other species. 1 Ecol 483/583 – Lab 3: Anura 2010 Exercise 1: Anura diversity General Information Frogs are a monophyletic group comprising the order Anura. Salientia includes both extant and extinct frogs. Frogs have been around since the Triassic (~230 ma).
    [Show full text]
  • Habitat Selection of the Desert Night Lizard (Xantusia Vigilis) on Mojave Yucca (Yucca Schidigera) in the Mojave Desert, California
    Habitat selection of the desert night lizard (Xantusia vigilis) on Mojave yucca (Yucca schidigera) in the Mojave Desert, California Kirsten Boylan1, Robert Degen2, Carly Sanchez3, Krista Schmidt4, Chantal Sengsourinho5 University of California, San Diego1, University of California, Merced2, University of California, Santa Cruz3, University of California, Davis4 , University of California, San Diego5 ABSTRACT The Mojave Desert is a massive natural ecosystem that acts as a biodiversity hotspot for hundreds of different species. However, there has been little research into many of the organisms that comprise these ecosystems, one being the desert night lizard (Xantusia vigilis). Our study examined the relationship between the common X. vigilis and the Mojave yucca (Yucca schidigera). We investigated whether X. vigilis exhibits habitat preference for fallen Y. schidigera log microhabitats and what factors make certain log microhabitats more suitable for X. vigilis inhabitation. We found that X. vigilis preferred Y. schidigera logs that were larger in circumference and showed no preference for dead or live clonal stands of Y. schidigera. When invertebrates were present, X. vigilis was approximately 50% more likely to also be present. These results suggest that X. vigilis have preferences for different types of Y. schidigera logs and logs where invertebrates are present. These findings are important as they help in understanding one of the Mojave Desert’s most abundant reptile species and the ecosystems of the Mojave Desert as a whole. INTRODUCTION such as the Mojave Desert in California. Habitat selection is an important The Mojave Desert has extreme factor in the shaping of an ecosystem. temperature fluctuations, ranging from Where an animal chooses to live and below freezing to over 134.6 degrees forage can affect distributions of plants, Fahrenheit (Schoenherr 2017).
    [Show full text]
  • The Maricopa County Wildlife Connectivity Assessment: Report on Stakeholder Input January 2012
    The Maricopa County Wildlife Connectivity Assessment: Report on Stakeholder Input January 2012 (Photographs: Arizona Game and Fish Department) Arizona Game and Fish Department In partnership with the Arizona Wildlife Linkages Workgroup TABLE OF CONTENTS LIST OF FIGURES ............................................................................................................................ i RECOMMENDED CITATION ........................................................................................................ ii ACKNOWLEDGMENTS ................................................................................................................. ii EXECUTIVE SUMMARY ................................................................................................................ iii DEFINITIONS ................................................................................................................................ iv BACKGROUND ................................................................................................................................ 1 THE MARICOPA COUNTY WILDLIFE CONNECTIVITY ASSESSMENT ................................... 8 HOW TO USE THIS REPORT AND ASSOCIATED GIS DATA ................................................... 10 METHODS ..................................................................................................................................... 12 MASTER LIST OF WILDLIFE LINKAGES AND HABITAT BLOCKSAND BARRIERS ................ 16 REFERENCE MAPS .......................................................................................................................
    [Show full text]
  • Horned Lizards (Phrynosoma) of Sonora, Mexico: Distribution And
    RESEARCH ARTICLE Horned Lizards (Phrynosoma) of Sonora, Mexico: Distribution and Ecology Cecilia Aguilar-Morales, Universidad de Sonora, Departamento de Investigaciones Científicas y Tecnológicas, Blvd. Luis Encinas y Rosales SN, Hermosillo, SON; [email protected] Thomas R. Van Devender, GreaterGood, Inc., 6262 N. Swan Road, Suite 150, Tucson, AZ; [email protected] Mexico is recognized globally as a mega-diversity of the Sierra San Javier, the southernmost Sky Island country. The state of Sonora has very diverse fauna, (Van Devender et al. 2013). The Sierra Madre Oc- flora, and vegetation. The diversity of horned lizards in cidental reaches its northern limit in eastern Sonora, the genus Phrynosoma (Phrynosomatidae) in the state with Madrean species present in the oak woodland and of Sonora is a reflection of the landscape and biotic di- pine-oak forests in the higher elevations of the Sky Is- versity. In this paper, we summarize the distribution lands. West of the Madrean Archipelago, desertscrub and ecology of eight species of Phrynosoma in Sonora. vegetation is present in the Sonoran Desert lowlands of Mexico is western and central Sonora. Methods recognized Phrynosoma records globally as a Study area Eight species of Phrynosoma are reported from So- mega-diversity The great biodiversity of Sonora is the result of nora (Enderson et al. 2010; Rorabaugh and Lemos country. The complex biogeography and ecology. The elevation in 2016). Distribution records from various sources and state of Sonora Sonora ranges from sea level at the Gulf of California many photo vouchers are publicly available in the to over 2600 m in the Sierras Los Ajos and Huachinera Madrean Discovery Expeditions (MDE) database has very diverse (Mario Cirett-G., pers.
    [Show full text]
  • Appendix B References
    Final Tier 1 Environmental Impact Statement and Preliminary Section 4(f) Evaluation Appendix B, References July 2021 Federal Aid No. 999-M(161)S ADOT Project No. 999 SW 0 M5180 01P I-11 Corridor Final Tier 1 EIS Appendix B, References 1 This page intentionally left blank. July 2021 Project No. M5180 01P / Federal Aid No. 999-M(161)S I-11 Corridor Final Tier 1 EIS Appendix B, References 1 ADEQ. 2002. Groundwater Protection in Arizona: An Assessment of Groundwater Quality and 2 the Effectiveness of Groundwater Programs A.R.S. §49-249. Arizona Department of 3 Environmental Quality. 4 ADEQ. 2008. Ambient Groundwater Quality of the Pinal Active Management Area: A 2005-2006 5 Baseline Study. Open File Report 08-01. Arizona Department of Environmental Quality Water 6 Quality Division, Phoenix, Arizona. June 2008. 7 https://legacy.azdeq.gov/environ/water/assessment/download/pinal_ofr.pdf. 8 ADEQ. 2011. Arizona State Implementation Plan: Regional Haze Under Section 308 of the 9 Federal Regional Haze Rule. Air Quality Division, Arizona Department of Environmental Quality, 10 Phoenix, Arizona. January 2011. https://www.resolutionmineeis.us/documents/adeq-sip- 11 regional-haze-2011. 12 ADEQ. 2013a. Ambient Groundwater Quality of the Upper Hassayampa Basin: A 2003-2009 13 Baseline Study. Open File Report 13-03, Phoenix: Water Quality Division. 14 https://legacy.azdeq.gov/environ/water/assessment/download/upper_hassayampa.pdf. 15 ADEQ. 2013b. Arizona Pollutant Discharge Elimination System Fact Sheet: Construction 16 General Permit for Stormwater Discharges Associated with Construction Activity. Arizona 17 Department of Environmental Quality. June 3, 2013. 18 https://static.azdeq.gov/permits/azpdes/cgp_fact_sheet_2013.pdf.
    [Show full text]
  • A Supplemental Bibliography of Herpetology in New Mexico
    A Supplemental Bibliography of Herpetology in New Mexico --- Revised: 1 September 2005 --- Compiled by: James N. Stuart New Mexico Department of Game & Fish Conservation Services Division P.O. Box 25112 , Santa Fe, NM 87504-5112 and Curatorial Associate (Amphibians & Reptiles) Museum of Southwestern Biology University of New Mexico E-mail: [email protected] This document may be cited as: Stuart, J.N. 2005. A Supplemental Bibliography of Herpetology in New Mexico. Web publication (Revised: 1 September 2005): http://www.msb.unm.edu/herpetology/publications/stuart_supl_biblio.pdf Contents Section 1: Introduction and Acknowledgments Section 2: Alphabetical List of References Section 3: Index of References by Taxon or General Topic Appendix A: List of Standard English and Current Scientific Names for Amphibians and Reptiles of New Mexico Appendix B: List of State and Federally Protected Herpetofauna in New Mexico Section 1: Introduction and Acknowledgments The publication of Amphibians and Reptiles of New Mexico by W.G. Degenhardt, C.W. Painter, and A.H. Price in 1996 provided the first comprehensive review of the herpetofauna in New Mexico. Approximately 1,600 references were cited in the book and yet, as is the nature of scientific research, additional information continues to be published on the amphibian and reptile populations of this state. This supplemental bibliography was created to build on the information in Degenhardt et al. by compiling all pertinent references not included in their 1996 book or in their corrigenda to the book (Price et al. 1996). References include both peer-reviewed and non-reviewed (e.g., “gray literature”) sources such as journal and magazine articles, books, book chapters, symposium proceedings, doctoral dissertations, master’s theses, unpublished agency and contract reports, and on-line Web publications.
    [Show full text]
  • 3.4 Biological Resources
    ELDORADO–IVANPAH TRANSMISSION PROJECT 3.4 BIOLOGICAL RESOURCES 1 3.4 Biological Resources 2 3 This section describes the environmental setting, regulatory setting, and potential impacts of the construction and 4 operation of the proposed project and alternatives with respect to biological resources. Information in this section is 5 largely based on the Eldorado–Ivanpah Transmission Project Biological Technical Report (EPG 2009) and the 6 Proponent’s Environmental Assessment (PEA) dated May 28, 2009, as prepared by Southern California Edison 7 (SCE, hereafter referred to as the applicant). Details on locations of the EITP facilities, rights-of-way (ROWs), extra 8 workspaces, and staging areas can be found in Chapter 2. Chapter 2 also provides a detailed description of 9 construction, operation, and maintenance techniques used for the proposed project and alternatives to the proposed 10 project. Comments received from the general public and resource agencies during the scoping process are evaluated 11 and addressed as well in Section 3.4.3, ―Impact Analysis.‖ 12 13 3.4.1 Environmental Setting 14 15 The EITP is located within the Eldorado and Ivanpah valleys in southern Clark County, Nevada, and in southeastern 16 California. The project would cross public and privately owned lands (see Section 3.9, ―Land Use, Agricultural 17 Resources, and Special Management Areas‖). Most of the lands that would be crossed by the transmission line in 18 California are administered by the BLM. Small segments would cross private parcels at Nipton, California, and in the 19 vicinity of the Mountain Pass Substation. Similarly, the EITP in Nevada is predominantly situated on BLM lands, but 20 private lands would be crossed near the Eldorado Substation and possibly at Primm, Nevada.
    [Show full text]
  • Final Environmental Assessment for Reestablishment of Sonoran Pronghorn
    Final Environmental Assessment for Reestablishment of Sonoran Pronghorn U.S. Department of the Interior Fish and Wildlife Service Region 2 6 October 2010 This page left blank intentionally 6 October 2010 TABLE OF CONTENTS 1.0 PURPOSE OF AND NEED FOR ACTION............................................ 1 1.1 Proposed Action.............................................................. 2 1.2 Project Need................................................................. 6 1.3 Background Information on Sonoran Pronghorn . 9 1.3.1 Taxonomy.............................................................. 9 1.3.2 Historic Distribution and Abundance......................................... 9 1.3.3 Current Distribution and Abundance........................................ 10 1.3.4 Life History............................................................ 12 1.3.5 Habitat................................................................ 13 1.3.6 Food and Water......................................................... 18 1.3.7 Home Range, Movement, and Habitat Area Requirements . 18 1.4 Project Purpose ............................................................. 19 1.5 Decision to be Made.......................................................... 19 1.6 Compliance with Laws, Regulations, and Plans . 19 1.7 Permitting Requirements and Authorizations Needed . 21 1.8 Scoping Summary............................................................ 21 1.8.1 Internal Agency Scoping.................................................. 21 1.8.2 Public Scoping ........................................................
    [Show full text]
  • Public-Private Partnership Potentials
    Public‐Private Partnerships Potential for Arizona‐Mexico Border Infrastructure Projects Executive Summary ADOT Task Assignment MPD 31‐09 30 September 2009 Public‐Private Partnerships Potential for Arizona‐Mexico Border Infrastructure Projects Executive Summary Table of Contents Final Report 1.0 Introduction .......................................................................................................................1 2.0 Methodology......................................................................................................................2 3.0 Overview of the Arizona‐Mexico Ports of Entry..........................................................4 4.0 Review of Key Border Initiatives and Innovative Finance Initiatives from FHWA...............................................................................................................................10 5.0 Existing and Planned Use of Public‐Private Partnerships and Private Sector Involvement at Border Crossings .................................................................................11 5.1 Identified Implementation Issues for Public‐Private Partnerships at Border Crossings ..........................................................................................................................12 6.0 Cross Border Commodity Movements between Arizona and Mexico ...................13 Exhibit 1: 2007 Exports and Imports through Arizona’s Ports of Entry......................................13 6.1 Exports to Mexico ...................................................................................................13
    [Show full text]