1. Human influences on the ecology and evolution of medicinal plants: American ginseng as a case study Restricted (Penn State Only) Author: Palkovitz, Rachel Title: Human influences on the ecology and evolution of medicinal plants: American ginseng as a case study Graduate Program: Anthropology Keywords: Evolutionary AnthropologyAmerican ginsengmedicinal plantspopulation geneticsphenotypic variationunconscious selectionharvest-induced selectionconservation File: Login to Download Committee Members: Tim Ryan, Program Head/ChairTim Ryan, Major Field MemberMary Shenk, Outside Field MemberGeorge Perry, Chair & Dissertation AdvisorEric Burkhart, Outside Unit Member