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FLORA AND VEGETATION OF THE KOKIWANEE NATURE PRESERVE. Teresa M. Michaelis and David J. Hicks Biology Department, Manchester College, North Manchester, IN. INTRODUCTION. x. ↔ Wabash CR 50S. Kokiwanee Nature Preserve (55 ha). Salamonie River. ↕ Wabash CR 600E. Salamonie State Forest.
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FLORA AND VEGETATION OF THE KOKIWANEE NATURE PRESERVE Teresa M. Michaelis and David J. Hicks Biology Department, Manchester College, North Manchester, IN
↔ Wabash CR 50S Kokiwanee Nature Preserve (55 ha) Salamonie River ↕ Wabash CR 600E Salamonie State Forest Salamonie Dam & Reservoir 1998
GEOLOGICAL HISTORY • Calcareous Silurian rocks overlain by glacial till
x Howe. 1997. Natural Heritage of Indiana.
Melhorn. 1997. Natural Heritage of Indiana.
Salamonie Gorge Formed in Holocene? (Fleming, 2005)
Upland soils: alfisols (Glynwood-Morley group) Floodplain soil: inceptisol (Genesee series) (Wabash County Soil Survey)
Humid continental climate Climate data for Wabash, IN
Current 1941 1951
Woodlot 1951 1941
Bluff 1951 1941
Collecting trips Total: 62 2004: 20 2005: 17 2006: 25
SPECIES LIST • Currently 449 species
SPECIES LIST • 43% are county records
SPECIES LIST • 43% are “county records” • Deam flora (1940)
449 species is not unusually high, given extent of preserve Kokiwanee r2 = 0.89, p = 0.001 Botany Glen, Fogwell Forest, Ginn Woods, Mounds SP, Wright FGA
SPECIES LIST • 93 families
LARGEST FAMILIES 42 families represented by only 1 species
UNUSUAL PLANTS • Possible state T&E Carex brunnescens
Delphinium tricorne Species near edge of range
x x x x x x x x x x x x Melanthium woodii x x x Species near edge of range
Hydrangea arborescens Species near edge of range
Hybanthus concolor Mertensia virginica Species uncommon in northeastern Indiana
Panax quinquefolius Species uncommon in northeastern Indiana
http://users.manchester.edu/Facstaff/DJHicks/kokiwaneelist.xlshttp://users.manchester.edu/Facstaff/DJHicks/kokiwaneelist.xls
FLORISTIC QUALITY • “Coefficient of conservatism” (C) • 0 to 10 scale • Ratings from http://www.in.gov/idem/programs/water/401/plantlist.xls
15% non-native (vs. 30% for IN) Average for native spp. = Cav = 4.42 ± 2.38
FLORISTIC QUALITY • For “the best natural woodland sites in the Central Till Plain… Cav (native species) plateau in the low 4 range.” (Rothrock and Homoya. 2005. Proc. IAS)
FLORISTIC QUALITY • Floristic quality index = Cav √(number species) = 86