Spatiotemporal Modeling of Prolonged Invasive Exotic Species Dynamics in Madison County, IL

Authors: Michael Shouse*, Southern Illinois University Edwardsville
Topics: Remote Sensing
Keywords: Invasive species
Session Type: Paper
Day: 4/10/2018
Start / End Time: 12:40 PM / 2:20 PM
Room: Zulu, Sheraton, 8th Floor
Presentation File: No File Uploaded


Most analyses of impacts of environmental change on invasive exotic species has been spatially discrete; lacking consideration of broader geographic contexts and multiple spatiotemporal relationships. Spatiotemporal modeling can close this knowledge gap. My research seeks to establish connections between biological invasion and land-use and land-cover (LULC) change using historical Landsat archives for the Southern Illinois University Edwardsville campus (SIUE) and more broadly Madison County, IL. Lonicera maackii (bush honeysuckle), a widely distributed invasive exotic plant species, is the targeted species in this study because of its current prevalence in the area and extended leaf-phenology. Ultimately, this study will develop discriminate functions with multi-spectral remote sensing and environmental variables to assess current and historical L. maackii distribution, reconstruct the LULC change history using Landsat archive data, and determine how LULC change has affected L. maackii distribution over the past 30 years. Preliminary results, which will be presented, indicate a strong correlation between the current and historical distribution of L. Maackii and an extensive paved trail system in the area. This is particularly evident in residential land uses. The results of this study will be used to make recommendations for natural resource managers in developing prevention and/or mitigation strategies for invasive plants, facilitate a science-driven approach to invasive plant management at the landscape level, and provide a framework future.

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