Original caption: "(<b>a</b>) Mean δ<sup>15</sup>N compared between <i>C. schmitzi</i>, plants occupied by <i>C. schmitzi</i> (referred as PA plants) and plants that have not been occupied by <i>C. schmitzi</i> (referred as PnoA-no hole). These three signatures were used to estimate the percentage of foliar nitrogen derived from the ants. The error bars denote 1 S.E. (<b>b</b>) Foliar δ<sup>15</sup>N of <i>N. bicalcarata</i> as an increasing function of <i>C. schmitzi</i> occupation rate. As a consequence the percentage of foliar N derived from the ants also increased with ant occupation rate."
Bazile <i>et al.</i>
CC BY 2.5
Bazile, V., J.A. Moran, G. Le Moguédec, D.J. Marshall &amp; L. Gaume 2012. A carnivorous plant fed by its ant symbiont: a unique multi-faceted nutritional mutualism. <i>PLoS ONE</i> <b>7</b>(5): e36179. <a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1371%2Fjournal.pone.0036179">10.1371/journal.pone.0036179</a>