Natural Resource Summary for San Antonio Missions National Historical Park (SAAN) FINAL REPORT February 2005 Prepared by Robert J. Cooper Sandra B. Cederbaum and Jill Gannon Warnell School of Forest Resources University of Georgia Athens, GA TABLE OF CONTENTS TABLE OF CONTENTS ............................................................................................................................................ I LIST OF FIGURES..................................................................................................................................................III EXECUTIVE SUMMARY ...................................................................................................................................... IV RESEARCH REVIEWS .............................................................................................................................................1 BIOLOGICAL RESOURCES...............................................................................................................................2 VEGETATION ........................................................................................................................................................2 General.............................................................................................................................................................................. 2 Missions............................................................................................................................................................................ 3 Rancho de las Cabras........................................................................................................................................................ 4 MAMMALS ............................................................................................................................................................5 General.............................................................................................................................................................................. 5 Missions............................................................................................................................................................................ 6 Rancho de las Cabras........................................................................................................................................................ 6 REPTILES..............................................................................................................................................................7 General.............................................................................................................................................................................. 7 Missions............................................................................................................................................................................ 7 Rancho de las Cabras........................................................................................................................................................ 7 AMPHIBIANS.........................................................................................................................................................7 General.............................................................................................................................................................................. 7 Missions............................................................................................................................................................................ 8 Rancho de las Cabras........................................................................................................................................................ 8 BIRDS ...................................................................................................................................................................8 General.............................................................................................................................................................................. 8 Missions............................................................................................................................................................................ 8 Rancho de las Cabras........................................................................................................................................................ 9 FISH .....................................................................................................................................................................9 Missions............................................................................................................................................................................ 9 Rancho de las Cabras...................................................................................................................................................... 10 INVERTEBRATES .................................................................................................................................................10 General............................................................................................................................................................................ 10 Missions.......................................................................................................................................................................... 10 Rancho de las Cabras...................................................................................................................................................... 10 THREATENED AND ENDANGERED SPECIES ........................................................................................................11 PHYSICAL PROPERTIES .................................................................................................................................12 GEOLOGY............................................................................................................................................................12 Missions.......................................................................................................................................................................... 12 Rancho de las Cabras...................................................................................................................................................... 12 HYDROLOGY .......................................................................................................................................................13 Groundwater ................................................................................................................................................................... 13 General water quality studies .................................................................................................................................... 13 Recharge studies........................................................................................................................................................ 13 Contamination studies ............................................................................................................................................... 14 Miscellaneous studies ................................................................................................................................................ 14 Surface water .................................................................................................................................................................. 15 Water quality studies ................................................................................................................................................. 15 AIR QUALITY ......................................................................................................................................................16 ECOSYSTEM STUDIES .....................................................................................................................................18 FORESTED RIPARIAN AREAS (INTERMITTENT STREAMS AND ACEQUIAS) ...............................................................18 OLD AGRICULTURAL FIELD ...............................................................................................................................18 SCRUBLAND ........................................................................................................................................................18 MANAGEMENT ISSUES....................................................................................................................................20 EXOTIC SPECIES .................................................................................................................................................20 Vegetation....................................................................................................................................................................... 20 Animals........................................................................................................................................................................... 20 i ADJACENT LANDUSE IMPACTS ............................................................................................................................21