Predicting habitat suitability and potential spread of wavyleaf basketgrass

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Abstract Type: Poster Abstract

Abstract

Since the first recorded sighting in 2003, Wavyleaf basketgrass (Oplismenus undulatifolius) has invaded several regions across Virginia. The invasive perennial primarily inhabits shaded, moisture rich environments and can effectively spread via burr attachment to humans and wildlife. Due to this spread mechanism, the majority of recorded sightings are concentrated in recreational parks and preserves with heavy foot traffic. By creating a Species Distribution Model (SDM), regions of Shenandoah National Park were identified that are suitable habitat, then used to identify either currently invaded or at risk regions. The case-study model was then applied to other recreational areas of Virginia. Results of the model can be used to inform field professionals when predicting, identifying, treating, and monitoring wavyleaf grass populations. This study’s findings help the most cost-effective approach to managing wavyleaf grass of early detection and rapid response, which avoids many of the long-term economic, environmental, and societal costs associated with invasive species.