Table 1.

List of general resource-based measures assumed to be met when deriving welfare assessment criteria.

Enclosure	Appropriate: –Enclosure design –Space allowance –Substrate and furnishings
Temperature	Basking gradients Optimum temperature range Natural variation to allow behavioral thermoregulation
Water	Ability to soak Appropriate water provisions for drinking/hydration
Humidity	Optimum humidity range
Lighting	Appropriate photoperiod Mimic the natural outdoor seasonal lighting Exposure to natural sunlight, or a comparable range of wavelengths including UVA (320–400 nm) and UVB (290–320 nm)
Nutrition	Appropriate: –Nutrient composition of the diet –Dietary items (e.g., insects provided to an insectivorous reptile) –Presentation of food in a way that encourages natural foraging behavior
Socialization	Appropriate social housing (e.g., isolated or group housing; mixed or sex-based housing)