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Florida gopher tortoise
Gopherus polyphemus
The gopher tortoise is a keystone species of the SE United States, renowned for its extensive deep burrows. It requires spacious, deep sandy soils for digging and shelter.
Class:Testudines
Order:Testudines
Family:Testudinidae
Genus:Gopherus
Species:Gopherus polyphemus
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Environment
Terrestrial
Humidity
50 - 70 %
Day temperature
15 - 32 °C
Ambient temperature
15 - 32 °C
Night temperature
21 - 23 °C
Basking spot
32 - 35 °C
Adult size
28 cm
Minimum enclosure
>= 800 L
Brumation temperature
6 - 12 °C
UVB
High
Species description
Geographical Origin and Habitat: The gopher tortoise (Gopherus polyphemus) is native to the southeastern United States, with its largest populations residing in Florida, but also extending into southern Georgia, Alabama, Mississippi, and eastern Louisiana. It primarily inhabits dry, sandy upland ecosystems such as longleaf pine flatwoods, sandhills, coastal dunes, scrublands, and dry prairies. These habitats are characterized by deep, well-drained sandy soils that allow the tortoise to dig its extensive burrow systems, which are vital for surviving extreme temperatures and periodic natural wildfires.
Taxonomy and Genetics: Taxonomically, Gopherus polyphemus belongs to the family Testudinidae and is one of the few surviving species within the genus Gopherus. Genetic research reveals that this tortoise has ancient adaptations for a fossorial lifestyle in subtropical climates. Populations are increasingly fragmented due to urban development and habitat loss, leading to a loss of genetic diversity and making conservation efforts critical. It is protected under both state and federal laws as a threatened species.
Behavior and Habits: The life of the gopher tortoise revolves around its burrow, which can measure up to 15 meters in length and over 3 meters in depth. These burrows provide a stable microclimate, protecting the tortoise from cold winters, scorching summers, and predators. The tortoise is a diurnal herbivore, foraging close to its burrow entrance and retreating inside during the hottest parts of the day. It is generally a solitary animal, though multiple burrows may form loose neighborhoods in high-quality habitats.
Morphology: It possesses a strong, oblong, and somewhat flattened carapace that is dark brown, gray, or black in adult specimens. The forelimbs are heavily scaled and flattened into spade-like shapes with strong claws adapted for efficient digging. The hind limbs are stumpy and elephantine. Adults typically reach a shell length of 25 to 35 cm. Sexual dimorphism is present; adult males have a pronounced concave plastron to facilitate mating and a slightly longer tail than females.
Care, breeding and tankmates
Terrarium Setup: Due to its large size and burrowing instincts, keeping this species in a standard indoor terrarium is not feasible. They require large, secure outdoor enclosures (minimum 10 square meters per animal) with walls sunk at least 60-80 cm into the ground to prevent escape through burrowing. The substrate must consist of deep, sandy-loam soil that allows digging, and sturdy artificial shelters must be provided to mimic their natural burrows.
Lighting and Heating: If housed indoors temporarily, they require a powerful basking spot with temperatures reaching 32-35°C and an ambient temperature gradient of 24-28°C. A high-output UVB source (10% or higher) is mandatory to ensure proper vitamin D3 synthesis and calcium absorption, preventing severe bone deformities.
Humidity and Hydration: Humidity should be maintained between 50% and 70%. While they obtain most of their hydration from fresh forage, a shallow, wide water dish must be available at all times for drinking and soaking. The water depth must be very low to eliminate any risk of drowning.
Feeding and Supplementation: Their diet must be strictly herbivorous, high in fiber, and low in protein and sugar. It should consist primarily of wild grasses, weeds, dandelion, clover, hibiscus leaves, and grass hay. Avoid feeding fruit or commercial animal proteins. Supplement their food with pure calcium powder three times a week and a vitamin D3 supplement once a week.
Compatibility: They are territorial animals, and adult males must never be housed together as they will fight aggressively. A single male can be kept with one or two females, but only in a very spacious outdoor enclosure with plenty of visual barriers to prevent constant stress and harassment.
Health and Common Diseases: Common health issues include Metabolic Bone Disease (MBD) from poor lighting or diet, Upper Respiratory Tract Disease (URTD) caused by pathogens and exacerbated by drafts, and shell pyramiding from excess protein. Regular checkups with an exotic animal veterinarian are essential.
Geographic Origin and Distribution
The gopher tortoise (Gopherus polyphemus) is native to the southeastern United States, with its largest populations residing in Florida, but also extending into southern Georgia, Alabama, Mississippi, and eastern Louisiana. It primarily inhabits dry, sandy upland ecosystems such as longleaf pine flatwoods, sandhills, coastal dunes, scrublands, and dry prairies. These habitats are characterized by deep, well-drained sandy soils that allow the tortoise to dig its extensive burrow systems, which are vital for surviving extreme temperatures and periodic natural wildfires.
Origin
North America
Reptile profile
- Diet
- No verified data available
- Life expectancy
- No verified data available
- Adult size
- 28 cm
- Lifestyle/Microhabitat
- No verified data available
- Activity cycle
- No verified data available
- Sociality
- No verified data available
- Reproduction
- No verified data available
- Handling tolerance
- No verified data available
- Brumation
- No verified data available
- Molting
- No verified data available
The catalog's scalar value is 28 cm. The ReptTraits v1.2 source reports a maximum adult measurement of 28 cm for this species, recorded as straight carapace length (SCL). These figures are not interchangeable: the first is the profile's editorial reference, whereas the second is a published maximum under a specific measurement convention; differences among sources can reflect sex, population, life stage and measuring method.
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