Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1976 The forest vegetation of the driftless area, northeast Iowa Richard A. Cahayla-Wynne Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Botany Commons, Ecology and Evolutionary Biology Commons, Other Forestry and Forest Sciences Commons, and the Plant Pathology Commons Recommended Citation Cahayla-Wynne, Richard A., "The forest vegetation of the driftless area, northeast Iowa" (1976). Retrospective Theses and Dissertations. 16926. https://lib.dr.iastate.edu/rtd/16926 This Thesis is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact
[email protected]. The forest vegetation of the driftless area, northeast Iowa by Richard A. Cahayla-Wynne A Thesis Submitted to the Graduate Faculty in Partial Fulfillment of The Requirements for the Degree of MASTER OF SCIENCE Department: Botany and Plant Pathology Major: Botany (Ecology) Signatures have been redacted for privacy Iowa State University Ames, Iowa 1976 ii TABLE OF CONTENTS Page INTRODUCTION 1 STUDY AREA 6 METHODS 11 RESULTS 17 DISCUSSION 47 SUMMARY 55 LITERATURE CITED 56 ACKNOWLEDGMENTS 59 APPENDIX A: SPECIES LIST 60 APPENDIX B: SCIENTIFIC AND COMMON NAMES OF TREES 64 APPENDIX C: TREE BASAL AREA 65 1 INTRODUCTION Iowa is generally pictured as a rolling prairie wooded only along the water courses. The driftless area of northeast Iowa is uniquely contrasted to this image; northeast Iowa is generally forested throughout, often with rugged local relief.