An associational study of Illinois sand prairie . neral description of the locality 7 Aclmowledgements 8 II. GENERAL RELATIONS OF THE ILLINOIS SAND REGIONS. Introductory statement 10 General notes on the prairio-province 11 General history of the sand-prairie vegetation 13 III. THE PHYSICAL ENVIRONMENT. The topography of the sand region 16 The physical history of the sand deposits 21 Physical factors of the sand-prairie environment 25 IV. THE PLANT ENVIRONMENT. Local history of the vegetation 30 The vegetation as an animal environment 35 V. THE ASSOCIATIONS OF THE SAND-PRAIRIE. The prairie for
An associational study of Illinois sand prairie . neral description of the locality 7 Aclmowledgements 8 II. GENERAL RELATIONS OF THE ILLINOIS SAND REGIONS. Introductory statement 10 General notes on the prairio-province 11 General history of the sand-prairie vegetation 13 III. THE PHYSICAL ENVIRONMENT. The topography of the sand region 16 The physical history of the sand deposits 21 Physical factors of the sand-prairie environment 25 IV. THE PLANT ENVIRONMENT. Local history of the vegetation 30 The vegetation as an animal environment 35 V. THE ASSOCIATIONS OF THE SAND-PRAIRIE. The prairie formation 38 The bunch-grass association 38 The Panicura pseudopubescens association 55 The climax sand-prairie association 56 The blowout formation 59 The basin association 64 The windward slope association 66 The blow-sand association 68 The deposit association 72 Succession within the sand-prairie formations 73 VI. NOTES ON GEOGRAPHIC AND ECOLOGICAL RELATIONS OF THE ANIMALS 74 VII. ECOLOGICALLY ANNOTATED LIST OF SPECIES 78 VIII. BIBLIOGRAPHY 167. 2 LIST OF ILLUSTRATIONS. Figure Page 1. Map of the Illinois River sand region 3 2. Sandy loam flat near Havana 17 3. A view of the Devils Neok region 19 4. General view from a dune summit 20 5. Lakes of the Illinois River flood plain 24 6. The mixed forest of the marginal dune 33 7. A bunch-grass pasture at the Devils Hole 40 8. Dune topography in the hunch-grass 41 9. A Rhus dujie at the Devils Hole 61 10. A view of the bunch-grass in detail 62 11. A nearly typical blov;out 65 12. The black-jack oak forest 170 13. Interior of the mixed forest 170 a 14. Forested lee slope of a bunch-grass dune 171 15. The Crane Creek flats 172 16. Summit of the Watch-Tower Hill 173 17. Bare sand area at the Devils Hole 174 18. The bare sand of the Devils Neck 175 19. The black oak forest 176 20. A bunch grass hollov/ in the forest 177 21. A Lycosid burrov/ 178 22. Hills of the pocket gopher 179 23. The shore of Matanzas Lake 180 24. The Quiver Lake bea
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Keywords: ., bookcentury1900, bookdecade1910, bookidassocia, booksubjecttheses
