Problematic plant monitoring in Hopewell Culture National Historical Park: 2008–2019
Young CC. 2021. Problematic plant monitoring in Hopewell Culture National Historical Park: 2008–2019. Natural Resource Report. NPS/HTLN/NRR—2021/2271. National Park Service. Fort Collins, Colorado. https://doi.org/10.36967/nrr-2286658
Managers are challenged with the impact of problematic plants, including exotic, invasive, and pest plant species. Information on the cover and frequency of these plants is essential for developing risk-based approaches to managing these species. Based on surveys conducted in 2008, 2011, 2015, and 2019, Heartland Network staff and contractors identified a cumulative total of 51 potentially problematic plant species in Hopewell Culture National Historical Park. Of the 37 species found in 2019, we characterized 7 as very low frequency, 9 as low frequency, 17 as medium frequency, and 4 as high frequency. Of these, midpoint cover estimates of 2 medium frequency and 2 high frequency species exceeded the 10-acre threshold. Because of the number, extent, and cover of problematic plants in the park and the small park size, control efforts should focus on treating high priority species across the entire park. High priority species may include plant species capable of rapid spread, species at low population levels, and species which can effectively be controlled.
- Type
- Published Report
- Authors
- Young, Craig
- Date of Issue
- 2021-06
- Publisher
- National Park Service
- DOI
- 10.36967/nrr-2286658
- Units
- HOCU , HTLN , NRSS
- Subjects
- Ecological Framework: Biological Integrity | Invasive Species | Invasive/Exotic plants