Mullein it over: an examination of the impacts of common mullein (Verbascum thapsus) invasion and management
Biological invasion is one of the most important problems facing modern ecologists, and while research has shown the detrimental effects caused by many invasive species, the impact of the majority of invaders in largely unknown. I investigated the effects of the ubiquitous exotic plant species common mullein (Verbascum thapsus) on plant communities in northern Colorado. Additionally, I studied the impact of a second common invasive species, cheatgrass (Bromus tectorum), and examined its interactions with mullein. I conducted a field experiment over two years, manipulating mullein and cheatgrass ...
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