Secondary metabolites of the invasive tree, Callery pear (Pyrus calleryana), provide support for the empty niche theory of invasion

• Jessica A. Hartshorn

  Roles Conceptualization, Investigation, Methodology, Project administration, Resources, Writing – original draft

  * E-mail: jhartshorn@centralstate.edu

  Current affiliation: Agriculture Research Development Program, Central State University, Wilberforce, Ohio, United States of America

  Affiliation Forestry and Environmental Conservation, Clemson University, Clemson, South Carolina, United States of America

  https://orcid.org/0000-0002-7401-8866

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