@misc{indiciaeca4912d5a4af,
  title = {Sharp savanna-forest transitions in the Midwest followed environmental gradients but are absent from the modern landscape},
  author = {Caitlin M. Broderick and Kelly A Heilman and Tamatha Patterson and Jody Peters and Jason S. McLachlan},
  year = {2019},
  doi = {10.1674/0003-0031-180.1.1},
  url = {https://pubs.usgs.gov/publication/70204105},
  note = {Source identifier: 70204105}
}