Modification by an invasive ecosystem engineer shifts a wet prairie to a monotypic stand

摘要: At the landscape scale, ecosystem engineers are expected to increase species diversity; however, diversity could decline if engineer is over-abundant. Thus, invasive have strong impacts, due their high abundances and novel disturbances. An engineer, feral swine (Sus scrofa), a that creates intense soil disturbances, altering plant communities. In this study, we examine effects of on experimental plots had been protected for over decade. Feral avoided recently burned preferred with N addition. Rooted shifted from bunchgrass dominated wet prairie monotypic stand native, Lachnanthes caroliana. were also attracted existing patches L. caroliana suggesting potential positive feedback between activity patch expansion result in an alternative state.