Sonoran Desert Research Center
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Powell, Albrecht, Halvorson, Schmidt, Docherty, & Anning Powell, Albrecht, Halvorson, Schmidt, Docherty, In Cooperation with the University of Arizona, School of Natural Resources Vascular Plant and Vertebrate Inventory of Casa Grande Ruins National Monument Vascular Plant and Vertebrate Inventory of Casa Grande Ruins National Monument Plant and Vertebrate Vascular U.S. Geological Survey Southwest Biological Science Center 2255 N. Gemini Drive Flagstaff, AZ 86001 Open-File Report 2005-1185 Southwest Biological Science Center Open-File Report 2005-1185 October 2006 U.S. Department of the Interior U.S. Geological Survey National Park Service In cooperation with the University of Arizona, School of Natural Resources Vascular Plant and Vertebrate Inventory of Casa Grande Ruins National Monument By Brian F. Powell, Eric W. Albrecht, Cecilia A. Schmidt, William L. Halvorson, Pamela Anning, and Kathleen Docherty Open-File Report 2005-1185 October 2006 USGS Southwest Biological Science Center Sonoran Desert Research Station U.S. Department of the Interior University of Arizona U.S. Geological Survey School of Natural Resources 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: 2006 Note: This document contains information of a preliminary nature and was prepared primarily for internal use in the U.S. Geological Survey. This information is NOT intended for use in open literature prior to publication by the investigators named unless permission is obtained in writing from the investigators named and from the Station Leader. Suggested Citation Powell, B. F, E. W. Albrecht, C. A. Schmidt, W. L. Halvorson, P. Anning, and K. Docherty. Vascular Plant and Vertebrate Inventory of Casa Grande Ruins Naitonal Monument. OFR 2005-1185. U.S. Geological Survey, Southwest Biological Science Center, Sonoran Desert Research Station, University of Arizona, Tucson, AZ. This report supersedes results reported in Powell et al. (2002, 2003, 2004). Printed on recycled paper Cover photo: Casa Grande structure, Casa Grande Ruins National Monument, Arizona. Photograph by Brian Powell. ii Authors Brian F. Powell Kathleen Docherty and Pamela Anning School of Natural Resources National Park Service 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 SBSC Survey Sonoran Desert Research Station Personnel Charles van Riper III, Station Leader Steve P. Gloss, Ecologist 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 Kate Leonard Dennis Suhre Jennifer Meador Cori Dolan Wendy Parrish James Feldmann Emily Sherbrooke Bill Halvorson Charles van Riper III Invasive Species Research Avian Ecology Patricia Guertin Claire Crow Jim Malusa Glenn Johnson Phil Rosen Chris O’Brien Cecil Schwalbe Brian Powell Brent Sigafus Charles van Riper III Dennis Suhre Kathryn Thomas Data Management Brent Sigafus Inventory & Monitoring Patricia Guertin Ecology of Amphibians & Reptiles Bill Halvorson Kevin Baker Pamela Nagler Cristina Jones Brian Powell Dave Prival Cecilia Schmidt Phil Rosen Cecil Schwalbe Vegetation Mapping & Ecology Brent Sigafus Patricia Guertin 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 Table of Contents .................................................................................................................................. v List of Tables......................................................................................................................................... vi List of Figures...................................................................................................................................... vii List of Appendices .............................................................................................................................. viii Report Dedication ................................................................................................................................ix Acknowledgements............................................................................................................................... xi Executive Summary ........................................................................................................................... xiii Chapter 1: Introduction to the Biological Inventories....................................................................... 1 Project Overview............................................................................................................................. 1 Report Format and Data Organization............................................................................................. 2 Verification and Assessment of Results .......................................................................................... 3 Chapter 2: Monument Overview ........................................................................................................ 7 Monument Area and History ........................................................................................................... 7 Natural Resources Overview........................................................................................................... 7 Natural Resource Management Issues........................................................................................... 10 Chapter 3: Plant Inventory ................................................................................................................ 15 Previous Research ......................................................................................................................... 15 Methods......................................................................................................................................... 15 Results and Discussion.................................................................................................................. 15 Inventory Completeness ................................................................................................................ 17 Chapter 4: Amphibian and Reptile Inventory.................................................................................. 19 Previous Research ......................................................................................................................... 19 Methods......................................................................................................................................... 19 Results ........................................................................................................................................... 22 Inventory Completeness ................................................................................................................ 24 Discussion ..................................................................................................................................... 25 Chapter 5: Bird Inventory.................................................................................................................. 26 Previous Research ......................................................................................................................... 26 Methods......................................................................................................................................... 26 Results ........................................................................................................................................... 32 Inventory Completeness ................................................................................................................ 35 Discussion ..................................................................................................................................... 35 Chapter 6: Mammal Inventory .......................................................................................................... 39 Previous and Ongoing Research.................................................................................................... 39 Methods......................................................................................................................................... 39 Results ........................................................................................................................................... 42 Inventory Completeness ................................................................................................................ 43 Discussion ..................................................................................................................................... 44 Chapter 7: Management Implications............................................................................................... 47 Chapter 8: Additional Inventories and Research............................................................................. 49 Chapter 9: Literature Cited