Correction: Measuring Faecal Epi-Androsterone as an Indicator of Gonadal Activity in Spotted Hyenas (Crocuta crocuta).

[This corrects the article DOI: 10.1371/journal.pone.0128706.].

Fig 7 contains an error on the x-axis. Fecal testosterone metabolites (fTM) and fecal glucocorticoid metabolites (fGM) values that are plotted on day 2 after an ACTH injection should be plotted on day 1, and the values that are plotted on day 1 should be plotted on day 2. Please see the corrected Fig 7 here.

Fig 7

Comparison of faecal cortisol and testosterone immunoreactivity.

Changes in fGM and fTM concentrations were determined in faecal samples from the ACTH challenge following hydrolysis with β-glucuronidase from Helix pomatia in the cortisol-3CMO, epiandrosterone and testosterone-11-HS EIAs, respectively. Levels of fGM and fTM are shown as percentage increase over pre-injection levels.