Garlic mustard (Alliaria petiolata) monitoring at Effigy Mounds National Monument: 2006-2015
Bell JC and Young CC. 2017. Garlic mustard (Alliaria petiolata) monitoring at Effigy Mounds National Monument: 2006-2015. Natural Resource Report. NPS/HTLN/NRR—2017/1451. National Park Service. Fort Collins, Colorado
Although garlic mustard abundance has fluctuated greatly since survey inception in 2006, the 2015 abundance estimate was the lowest observed (2,150 m2) compared to the high observed in 2012 (13,250 m2). Garlic mustard frequency, however, has remained relatively constant across all survey years from a low estimate of 43.0% in 2010 to a high of 48.5% in 2012. In addition, the percent overlap of transects containing garlic mustard is relatively similar when comparing any two surveys – further illustrating the relative stability of the plant distribution across the park landscape. Garlic mustard was always absent from 37.5% of transects and always present in 21.3% of transects. Given garlic mustard’s persistence on the park, management efforts may be most effective in areas where plant abundance and year-to-year recurrence are low.
- Type
- Published Report
- Authors
- Bell, Jordan; Young, Craig
- Date of Issue
- 2017-05
- Publisher
- National Park Service
- Units
- EFMO , HTLN , NRSS
- Keywords
- Alliaria petiolata, garlic mustard, invasive plants
- Subjects
- Ecological Framework: Biological Integrity | Invasive Species | Invasive/Exotic plants