Translocation

Definition

The deliberate human-mediated movement of living organisms from one geographic area to another; in conservation and applied ecology, typically the capture and release of individuals or populations to establish, reestablish, or augment populations outside their current range. Distinguished from natural dispersal by human intent and agency. In genetics, also refers to chromosomal rearrangements, but in field biology and conservation the population-level meaning predominates.

Etymology

From Latin trans- (across, beyond) + locare (to place)

Example

The translocation of Karner blue butterfly (Plebejus melissa samuelis) larvae from Wisconsin to Ohio in 1998 to reestablish extirpated populations required careful synchronization with wild lupine (Lupinus perennis) phenology at release sites.

Synonyms

• relocation
• reintroduction
• assisted migration
• population augmentation

Related Terms

• ex situ conservation
• captive breeding
• Founder effect
• genetic bottleneck
• propagule pressure
• Biological control
• range expansion
• Dispersal
• metapopulation

Usage Notes

In entomological and conservation contexts, 'translocation' usually implies active intervention for population management—contrast with 'dispersal' (natural movement) and 'migration' (seasonal, often innate, round-trip movement). Specialists distinguish 'reintroduction' (to former range), 'reinforcement/augmentation' (adding to existing populations), and 'conservation introduction' (outside historical range). Genetic translocation (chromosomal) is a separate domain; context usually clarifies which meaning applies. Success is measured by survival, reproduction, and population persistence, not merely release numbers.