Alliaria petiolata and its Invasive Effects, Both Above- and Below-Ground
Subjects
invasive speciesAbstract
Alliaria petiolata, known commonly as garlic mustard, is a high-profile invasive
herbaceous species that has made appearances in over 40 Wisconsin counties. This invasive
species, found primarily in deciduous forests, has been shown through various studies to
decrease the growth and reproductive success of species native to the invaded ecosystems. In
addition, garlic mustard disrupts underground colonization of arbuscular mycorrhizal fungi,
which many plants depend on for nutrient gain. In this multi-dimensional study, garlic mustard’s
effects on arbuscular mycorrhizal fungi colonization and native herbaceous species growth were
observed in a Wisconsin forest. Garlic mustard was treated both through removal and cutting.
Soil samples were taken weekly, intended for analysis on roots and fungi colonization on those
roots. The cover, abundance, and height of garlic mustard and native species was observed over
the course of the study. The soil samples were not able to be analyzed. Other data did not show
any significant differences in plant height or size between plots in which garlic mustard was
present, removed, absent, or cut.
Description
Alliaria petiolata and its Invasive Effects, Both Above- and
Below-Ground
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