Tasmanian Devil: Apex Scavenger of the Tasmanian Food Web

The Tasmanian devil (Sarcophilus harrisii) sits at the top of Tasmania's terrestrial food chain—not as a hunter, but as the dominant scavenger.

Diet & Feeding Ecology

• Primary: Carrion (wallabies, wombats, possums, roadkill, livestock)
• Secondary: Live prey (small mammals, birds, reptiles, insects, fish)
• Capacity: Consumes ~15% body weight/feeding; bone-crushing jaws (strongest bite force/mass of any mammal)

Ecological Role

• Carrion removal: Accelerates decomposition, reduces disease/blowfly spread.
• Mesopredator suppression: Limits feral cat/fox numbers via competition & direct predation.
• Nutrient cycling: Distributes marine-derived nutrients inland (seabird carrion).

Threats to Its Position

• Devil Facial Tumour Disease (DFTD): Transmissible cancer; >80% population decline since 1996.
• Roadkill: Irony—feeding on roadkill becomes roadkill.
• Habitat loss: Logging, agriculture.

Conservation = Ecosystem Stability

Insurance populations (Maria Island, fenced mainland sanctuaries), DFTD vaccine trials, and road mitigation aim to preserve the devil's irreplaceable scavenging function. Without it, Tasmania's food web unravels.