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Contents LIST OF ILLUSTRATIONS v PREFACE vii CHAPTER 1 / Keys to Understanding 7 Many Thickets 1 Natural Thickets 2 Unnatural Thickets 2 Three Concepts 5 The Traditional Big Thicket 7 The Ecological Big Thicket 8 The Big Thicket National Preserve 9 CHAPTER 2 / The Ecological Big Thicket 11 Geological History 11 Big Thicket Basin 12 Soil pH 16 Climate 17 Ecological Succession 17 Plant Communities 19 Coastal Prairie and Marshes 19 Mixed Grass Prairie 19 Longleaf Pine-Bluestem Range 22 Longleaf Pine Uplands 22 Pine Savannah Wetlands 34 Beech-Magnolia-Loblolly Pine Association 37 Stream Floodplains 43 Upper Stream Terraces 54 Lower Stream Terraces 65 iii iv Contents CHAPTER 3 / The Big Thicket National Preserve 71 Beaumont Unit 72 Beech Creek Unit 78 Big Sandy Creek Unit 79 Canyonlands Unit 82 Hickory Creek Savannah Unit 86 Neches Bottom-Jack Gore Baygall Unit 87 Neches Bottom 87 Jack Gore Baygall 90 Lance Rosier Unit 94 Loblolly Unit 96 Turkey Creek Unit 98 Stream Corridor Units 101 Big Sandy Village Creek 101 Menard Creek 104 Neches River 106 Pine Island / Little Pine Island Bayou 112 CHAPTER 4 / Man in the Big Thicket 115 Indians 115 Anglo-Americans 115 Modern Usage 116 Roadsides 116 Bar Ditches 116 Fencerows 117 Roadside Wildflower Conservation 117 Conclusion 117 REFERENCES 119 INDEX 123 ...


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