Post-independence survivorship of males (n = 31, solid line) and females (n = 17, broken line).

<p>Post-independence survivorship of males (n = 31, solid line) and females (n = 17, broken line).</p

Survivorship from birth, all cohorts (n = 177).

<p>Survivorship from birth, all cohorts (n = 177).</p

Trends in number of litters (solid line) and mean litter sizes (for those litters).

<p>Trends in number of litters (solid line) and mean litter sizes (for those litters).</p

Inferred total number of resident groups (solid line) and mean group size (dotted line).

<p>Inferred total number of resident groups (solid line) and mean group size (dotted line).</p

Inferred census data 1991–2006, Manu National Park, Peru.

<p>Inferred census data 1991–2006, Manu National Park, Peru.</p

Cohort life table for the Manu giant otter population, 1991 to 2006 cohorts (excluding 1997 and 1998).

<p>x(Age) = age interval (starting at 0.5 yrs which is when cubs are first censused), Nx = number of individuals per age class, mx = fecundity (half number of offspring born to parent aged x), Sx = age specific probability of survival to following year, lx = probability of survival from birth to age x, lxmx = average number of offspring born to female at age x (age specific contribution to reproduction), xlxmx = mother’s age when each offspring was born, Ex = life expectancy (average lifespan remaining for an individual of age x).</p><p>Cohort life table for the Manu giant otter population, 1991 to 2006 cohorts (excluding 1997 and 1998).</p

Male status (R - reproductive group member, T - transient, G - non-breeding group member) by age age class (n = 33).

<p>Male status (R - reproductive group member, T - transient, G - non-breeding group member) by age age class (n = 33).</p

Inferred total number of otters (solid line), cubs (dotted line) and transients (dashed).

<p>Inferred total number of otters (solid line), cubs (dotted line) and transients (dashed).</p