Study species.

<p>Study species comprised 12 taxon-pairs, each included a federally threatened or endangered subspecies and a closely related non-listed subspecies in the same parent species group (in some cases, two non-listed subspecies were used for comparison). Scientific nomenclature for listed subspecies followed the U.S. Fish and Wildlife Service Endangered Species Program <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0070647#pone.0070647-US1" target="_blank">[11]</a>; nomenclature for non-listed subspecies followed the Integrated Taxonomic Information System <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0070647#pone.0070647-IntegratedTaxonomicInformation1" target="_blank">[27]</a> and supplemental literature when indicated.</p>a<p>The endangered taxon <i>Oryzomys palustris natator</i><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0070647#pone.0070647-US1" target="_blank">[11]</a> is also referred to as <i>Oryzomys argentatus</i><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0070647#pone.0070647-Indorf1" target="_blank">[66]</a>.</p>b<p>Subspecies taxonomy for <i>O. palustris</i> has undergone several revisions. For this study, we compared the federally endangered population (<i>O</i>. <i>p. natator</i> aka <i>O. argentatus</i>) to two mainland subspecies of <i>O. palustris</i> located in Florida and the southeastern United States. According to <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0070647#pone.0070647-Indorf1" target="_blank">[66]</a>, <i>O. p. natator</i> is a subspecies that occurs in central Florida; it does not interact with the endangered population.</p>c<p>Subspecies taxonomy for <i>Puma concolor</i> has undergone several revisions. According to <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0070647#pone.0070647-Hothorn1" target="_blank">[46]</a>, <i>P</i>. <i>c</i>. <i>couguar</i> refers to cougars throughout North America.</p>d<p><i>Polyborus plancus audubonii</i><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0070647#pone.0070647-US1" target="_blank">[11]</a> is included as a sub-population of the species <i>Caracara cheriway</i> (northern crested caracara) according to ITIS <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0070647#pone.0070647-IntegratedTaxonomicInformation1" target="_blank">[27]</a> nomenclature. We compared the <i>P</i>. <i>p</i>. <i>audubonii</i> population to other non-interacting individuals with the most geographic similarity in the <i>C. cheriway</i> complex.