Oil Spill
Definition
Oil spills are among the most acute threats to penguin populations. When oil coats a penguin's feathers, it destroys the waterproofing and insulating properties of the plumage, leading to hypothermia, ingestion of toxic hydrocarbons during preening, and often death. The 2000 MV Treasure oil spill off Cape Town oiled approximately 19,000 African penguins, triggering the largest animal rescue operation in history. While rehabilitation can save individual birds, oil spills cause long-term damage to populations through reduced breeding success and chronic health effects in survivors.
Related Terms
The preening gland (uropygial gland) is an oil-producing gland located at the base of a penguin's tail.
Endangered is an IUCN Red List category indicating a species faces a very high risk of extinction in the wild.
Population trend describes whether a species is increasing, stable, decreasing, or unknown over a defined time period, typically three generations.
Related Species
Species where oil spill is especially relevant.
Frequently Asked Questions
What does oil spill mean in penguin biology?
Oil spills are among the most acute threats to penguin populations. When oil coats a penguin's feathers, it destroys the waterproofing and insulating properties of the plumage, leading to hypothermia, ingestion of toxic hydrocarbons during preening, and often death. The 2000 MV Treasure oil spill off Cape Town oiled approximately 19,000 African penguins, triggering the largest animal rescue operation in history. While rehabilitation can save individual birds, oil spills cause long-term damage to populations through reduced breeding success and chronic health effects in survivors.
Keep learning
Glossary entries define the language. FAQ answers common questions; guides carry the longer Survival Lab arguments.
More in conservationWhere this definition comes from
Reference bodies behind the conservation terminology. Links last checked August 5, 2026.
- IUCN Red List - Global conservation assessments and extinction-risk categories.
- BirdLife Data Zone - Species accounts, distribution, and population summaries.
- SANCCOB - African penguin rescue, rehabilitation, and conservation context.