You are here


Controlling Plant Invaders

Invasive species are changing the structure and function of our native ecosystems, there is a need for effective management of these species to protect ecosystem services and biodiversity. Through a desk study which collated all published research on the primary plant invader of forests across 25 U.S.

Warren, Robert J., Justin P. Wright, and Mark A. Bradford. 2010. The putative niche requirements and landscape dynamics of Microstegium vimineum: an invasive Asian grass. Biological Invasions.
Strickland, Michael S., Jayna L. DeVore, John C. Maerz, and Mark A. Bradford. 2010. Grass invasion of a hardwood forest is associated with declines in belowground carbon pools. Global Change Biology 16:1338-1350.
Warren, Robert J., Volker Bahn, Timothy D. Kramer, Yaya Tang, and Mark A. Bradford. 2011. Performance and reproduction of an exotic invader across temperate forest gradients. Ecosphere 2(2): Article 14.
Dr. Robert J. Warren
M. vimineum is a highly successful annual invasive grass found throughout eastern U.S. forests that thrives in a variety of habitats, including dry, open areas; moist riparian zones; and under the tree canopy. It tends to outcompete and out crowd native vegetation, altering the soil microbial community and nitrogen mineralization rates. This causes acceleration in nitrogen and carbon cycling, which leads to decreased litter accumulation and soil organic material, conditions that further encourage its spread at the expense of native vegetation.
Figure. Mean differences (+/- 95% CI) in soil moisture (%, Moist), diffuse light (%, Light), temperature (°C, Temp), leaf litter (%, Litter), herbaceous cover (Herb, g m-2), soil clay content (Clay, %) and soil pH between plots invaded and uninvaded by M. vimineum as measured at the Coweeta LTER and two other sites. Confidence intervals that do not cross zero (indicated by the dashed line) indicate statistically significant differences in means.
Warren et al. 2011



Theme by Danetsoft and Danang Probo Sayekti inspired by Maksimer