Description
The Gravel Hill Prairies (GHP's) of the Wabash River Valley are an endangered ecosystem in the state of Indiana and provide optimal growing conditions for a number of state endangered plants. Currently only four remnants are known to exist near Lafayette, IN, found by a previous study conducted in 1980 by Post, Bacone, and Aldrich (Proceedings of the Indiana Academy of Science, 1984, vol. 94: 457-464). These unique ecosystems have been found to occur almost exclusively on soils classified as Rodman Gravelly Loams and Strawn-Rodman complexes which occur predominantly along the outwash terraces of the Wabash River and its tributaries. Seven Indiana-state endangered plant species, more typical of western shortgrass prairies, are documented on these soils. This research effort aimed to develop GIS maps to scout for and discover areas of unknown GHP remnants. The end goal of the project is to assist conservation groups in the development of a strategy to preserve previously undiscovered remnants. This project relied on spatial analyses with Geographic Information Systems (GIS) and numerous databases including the USDA's gridded Soil Survey Geographic (gSSURGO), which had not been used previously to develop maps and scouting plans. Analysis have located a total of 809 areas of interest, of which 47 have been visited and had preliminary plant lists put together. These field scouting trips have found four gravel hill prairie remnants along the Wea Creek and the Wildcat Creek, one prairie remnant along Bee Run in Warren Co., and numerous high quality open-oak woodlands.
Location
Stewart Center 302
Start Date
11-2016
Document Type
Presentation
Keywords
Prairie, Habitat Suitability Modeling, Indiana, Endangered Plant
Included in
Utilizing GIS to Locate Endangered Gravel Hill Prairies of the Wabash River Valley
Stewart Center 302
The Gravel Hill Prairies (GHP's) of the Wabash River Valley are an endangered ecosystem in the state of Indiana and provide optimal growing conditions for a number of state endangered plants. Currently only four remnants are known to exist near Lafayette, IN, found by a previous study conducted in 1980 by Post, Bacone, and Aldrich (Proceedings of the Indiana Academy of Science, 1984, vol. 94: 457-464). These unique ecosystems have been found to occur almost exclusively on soils classified as Rodman Gravelly Loams and Strawn-Rodman complexes which occur predominantly along the outwash terraces of the Wabash River and its tributaries. Seven Indiana-state endangered plant species, more typical of western shortgrass prairies, are documented on these soils. This research effort aimed to develop GIS maps to scout for and discover areas of unknown GHP remnants. The end goal of the project is to assist conservation groups in the development of a strategy to preserve previously undiscovered remnants. This project relied on spatial analyses with Geographic Information Systems (GIS) and numerous databases including the USDA's gridded Soil Survey Geographic (gSSURGO), which had not been used previously to develop maps and scouting plans. Analysis have located a total of 809 areas of interest, of which 47 have been visited and had preliminary plant lists put together. These field scouting trips have found four gravel hill prairie remnants along the Wea Creek and the Wildcat Creek, one prairie remnant along Bee Run in Warren Co., and numerous high quality open-oak woodlands.