HPLC elution profiles of four fecal extracts from a Bengal tiger collected on Days 89, 97, 98 and 100 (a) and from a jaguar collected on Days 70, 73, 76 and 77 (b).

<p>Immunoreactivitiy of each fraction was determined in the PGFM EIA, arrows represent the elution positions of reference standards.</p

Term-wise PGFM concentration measured by EIA in Asiatic lion, Bengal tiger and jaguar.

<p>To examine differences in PGFM concentrations between different gestation periods, we divided pregnancy into three equal periods as early (1–5 weeks), mid (6–10 weeks) and late term (11–15 weeks) for Asiatic lion, Bengal tiger and jaguar.</p

HPLC elution profile of immunoreactive PGFM in fecal extracts of a pregnant tiger (days 97, a) and a pregnant jaguar (days 76, b).

<p>Fecal extracts of each animal were separated by RP-HPLC and then immunoreactivitiy of each fraction was determined by the PGFM EIA. Arrows indicate the elution positions of prostaglandin standards.</p

The study area, Sariska Tiger Reserve, Rajasthan, India.

<p>The study area, Sariska Tiger Reserve, Rajasthan, India.</p

Percentage of radio location of tigers in different disturbed areas and respective (subset figures) mean faecal glucocorticoid metabolite concentration in Sariska Tiger Reserve.

<p>(Red- high disturbance, yellow—medium disturbance, green—less disturbance zones and blue—overall mean +/- SE).</p

Generalized linear model (with Poisson distribution and identity function) of factors that influenced fecal glucocorticoid metabolite concentrations in tigers of Sariska Tiger Reserve (2011–2013).

<p>*—Beta or Coefficient</p><p>^#- Degrees of Freedom</p><p>^$Sig. is Significant level at 95% Confidence Interval</p><p>Generalized linear model (with Poisson distribution and identity function) of factors that influenced fecal glucocorticoid metabolite concentrations in tigers of Sariska Tiger Reserve (2011–2013).</p