Tortoise Hibernation Management: Preventing Welfare Problems in Winter

Hibernation (brumation) management for tortoises is a critical welfare skill - improper preparation or hibernation conditions cause preventable deaths.

Key Facts

Mediterranean tortoises (Hermann's, Horsfield's, spur-thighed) naturally hibernate in winter
Tortoises must be healthy and at adequate weight before hibernation to survive the fasting period
Hibernation at incorrect temperatures causes death: too warm burns calories, too cold causes freeze damage
The 'winding down' period involves reducing feeding 4-6 weeks before hibernation
Hibernation should occur at 3-7 degrees Celsius for Mediterranean species
Post-hibernation health checks including weight, hydration, and eye condition are essential

Welfare Considerations

Tortoise hibernation welfare failures are among the most common causes of preventable death in pet tortoises. The combination of inadequate pre-hibernation preparation, inappropriate temperature conditions, and failure to monitor during hibernation creates multiple welfare risks. A tortoise that emerges from hibernation severely underweight, dehydrated, or sick has experienced preventable suffering. Equally, forcing tortoises that evolved to hibernate to remain active year-round also has welfare costs. Managing this species-specific need requires education and careful implementation.

What You Can Do

Learn species-specific hibernation requirements before acquiring a tortoise
Weigh your tortoise before and after hibernation using the Jackson Ratio to assess health
Monitor hibernation temperature continuously with a thermometer in the hibernation container
Consult a reptile veterinarian to assess hibernation readiness before each winter
Never hibernate a sick, underweight, or recently acquired tortoise
Join tortoise keeper communities to access experienced guidance on hibernation management