Acknowledgements
This research was supported by the U.S. National Science Foundation (NSF IOS-1754909 and DEB-1928802 to A.M.R.) and Lehigh University Thorne Fellowship (to A.C.R.). We thank Luke McCartin, Nicole Pittoors and Samuel Vohsen for their assistance with microbial sequencing and bioinformatics; and we thank Joan Spinelli, Noel Martinez, Ray Kennedy, and Imani Ashman for providing feedback on an earlier draft of this paper. We also thank Brandon Swayser and Haley D’Agostino at the Wildlands Conservancy for collecting fecal samples.