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Characterization and quantitative assessment of interspecific and intraspecific penetration of below‐ground vegetation by cogongrass (Imperata cylindrica (L.) Beauv.) rhizomes
| Content Provider | Semantic Scholar |
|---|---|
| Author | Holly, D. Christopher Ervin, Gary N. |
| Copyright Year | 2006 |
| Abstract | Cogongrass ( Imperata cylindrica (L.) Beauv.), an invasive C4 perennial grass, negatively influences native plant communities by forming dense monotypic stands that alter ecosystem properties and lower local species diversity. A hypothesized mechanism by which cogongrass achieves competitive dominance is a novel use of below-ground vegetative disturbance of neighboring vegetation (i.e. puncturing). However, very little empirical evidence is found in the peer-reviewed literature to quantify this phenomenon, much less establish it as a true form of competitive interaction. The present field study was conducted to quantify the occurrence of rhizome-mediated, below-ground vegetative penetration, both interspecifically and intraspecifically, document how this phenomenon is influenced by spatial location relative to the cogongrass stand, and determine the role that above-ground and below-ground biomass might have in the process. Analyses of 100 sod samples indicated that rhizome-mediated, below-ground vegetative penetration is a much larger intraspecific phenomenon than an interspecific one. The data also strongly suggested spatial location as a significant factor, with most penetrations occurring in the interior of a cogongrass stand as opposed to the advancing border. Significant correlations between rhizome-mediated, below-ground vegetative penetration and above-ground cogongrass biomass were found in the overall plot analysis and most strongly in the advancing border of the cogongrass stands. |
| Starting Page | 120 |
| Ending Page | 123 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| DOI | 10.1111/j.1445-6664.2006.00198.x |
| Volume Number | 6 |
| Alternate Webpage(s) | http://www.cavs.msstate.edu/publications/docs/2006/06/3981Holly&Ervin_WeedBiolMgmt_2006.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
