Studies, whether based on experience from long time breeders, or scientific evidence show that UVB lighting is used by some reptiles, and probably not by others, for the synthesis of Vitamin D3. We all know that.



I think what many of us are finding out, and it makes sense, is that a full spectrum of light can, and will affect animals in many more ways than we can understand. Rob, I"m so happy you brought this up in a forum where the animals of topic are generally considered "non-UVB-necessary".



It was the opinion of Dr. Hernandez-Divers that a full spectrum visual field affects behavior. We define retinas with rods and cones, but we don't exactly have a full grasp of how to define what spectrum of the light is visible to what animal. Definately many animals that don't use UVB for Calcium metabolism are more active and alert in sunlight. Can you imagine if half of your visual spectrum was abscent? You would be living in the shade! No wonder my monitor goes berserck when he gets a shot of real sunlight.



My best, well researched answer to all lighting requirements is to approach the sunlight spectrum as close as you can, and adjust the intensity to suite your herp (basker or ground dweller ect.). Obviously make sure there is an "undergrowth" in the enclosure so your herp can move around without having to feel exposed.



Ian

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