Nutsedge-hog interaction

Interactions between invasive species are becoming increasingly common as introduced species establish around the world. We studied an interaction on St. Catherine's Island, Georgia, involving yellow nutsedge (Cyperus esculentus) and wild hogs (Sus scrofa). Wild hog foraging behavior has been found to promote the density of yellow nutsedge, a clonal plant that can rapidly grow in a disturbed environment through underground tubers. Wild hogs disturb the soil and remove native plant cover, allowing yellow nutsedge to regrow in the disturbance. As native plants begin to outcompete the yellow nutsedge, the wild hogs return to the location to forage, beginning the cycle again.

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Sewanee Herbarium

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Jonathan P. Evans

Spencer Hall 153

931-598-1304

jon.evans@sewanee.edu

 

Plant Ecology & Conservation Lab

Department of Biology

University of the South

735 University Avenue

Sewanee, TN 37383

Sewanee Herbarium

Spencer Hall 171

931-598-3346