Post-release mortality in black rhinoceros (<i>Diceros bicornis</i>) after (A) reintroduction and (B) restocking.

<p>Cohort size and habitat quality (estimated carrying capacity <0.1, 0.1–0.2 or >0.2 rhino per km²) explained reintroduction mortality while age class explained deaths after restocking. Age classes conform to Hitchins' A (calf) to F (adult) aging scheme <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0030664#pone.0030664-Beech1" target="_blank">[31]</a>. Numbers of rhino (i.e., n) in each category are indicated above each bar. nd = no data. The dash line across each indicates mean mortality rate for all reintroduction (A) and restocking (B) events.</p

Results summary of the 29 candidate models for reintroduction mortality risk among 89 cohorts and 414 reintroduced black rhino.

<p>Models are in descending order from most to least supported based on Akaike second-order Information Criteria (AIC_c). Leading models from previous analyses without interaction terms <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0030664#pone.0030664-HoeghGuldberg1" target="_blank">[<i>9]</i></a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0030664#pone.0030664-Frair1" target="_blank">[23<i> </i>]</a> are italicized. The model without fixed effects is indicated in bold type. A ‘*’ indicates an interaction term in the regression between two variables and, by implication, predictors in interactions were also present additively in models (e.g., a*b refers to model including a+b+a*b as fixed effects).</p