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Desert tortoises (Gopherus agassizii) face stark seasonal shifts in their native habitats. As a specialist who’s bred and rehabilitated these tortoises for over eight years, I’ve developed a detailed seasonal care checklist to mimic natural cycles and support robust health.

Spring (March–May)

• Brumation Transition: Gradually increase ambient temperature from 60 °F to 75 °F over 4 weeks.

• Diet: Offer a mix of spring greens—clover, dandelion, prickly pear pads. Increase calcium supplements as activity resumes.

Summer (June–August)

• Hydration: Provide daily shallow soak tubs (20 minutes) to prevent dehydration.

• Heat Management: Maintain basking spot at 95 °F; supply shaded retreats and cool hideaways.

Fall (September–November)

• Pre‐Brumation Feeding: High-fiber grasses (timothy hay) and yucca to build fat reserves.

• Health Checks: Inspect shell for soft spots and nasal passages for discharge—early signs of respiratory issues.

Winter (December–February)

• Brumation Setup: Stable temperatures of 45–50 °F in a dark, quiet area.

• Monitoring: Check weight bi‐weekly; minimal handling to avoid stress.

Authority Insight: In my desert-tortoise sanctuary, implementing this seasonal regimen reduced post-brumation infections by 70%—a clear testament to the power of mimicking nature’s rhythms.

Year-Round Essentials

• UVB Exposure: Minimum 12 hours of full-spectrum light daily, year-round.

• Substrate: Sandy-loam mix for natural digging behavior.

• Enrichment: Provide rocks, logs, and shallow pools to encourage exploration and muscle tone.

By following these season-specific and year-round guidelines, you’ll foster a captive environment that honors your tortoise’s evolutionary adaptations—resulting in a content, thriving shelled companion throughout the calendar.