The black rhinoceros (Diceros bicornis) has partially recovered from fewer than 2,500 individuals in 1995 to approximately 6,500 by 2024, thanks to intensive conservation management including translocations. Translocation welfare science is central to maintaining this recovery trajectory.
Black rhinos captured for translocation experience extreme acute stress: darting with immobilising drugs causes cardiovascular and respiratory compromise, and subsequent transport requires careful monitoring of physiological parameters. Capture myopathy — severe muscle breakdown from sustained struggling against immobilisation — is a leading cause of post-capture mortality. Research by Radcliffe and others demonstrated that vertical suspension by legs causes fewer respiratory complications than lateral recumbency, prompting a global change in translocation protocols. Post-release welfare monitoring identifies animals failing to establish territories or losing body condition, enabling supplemental support. The welfare cost of individual translocations is justified by population-level recovery benefits.