Lighting – Day & Night Cycles
Lighting conditions in animal centres are designed for human convenience. The animals may experience:
- Inconsistent light levels
- Strong contrasts between light and dark areas of an animal’s environment may arouse fear
- Flickering of fluorescent light bulbs
- Disruption of sleep and circadian cycles induces stress and adversely affects animal behaviour
Consider the following:
- Is there access to natural light from a window or skylight in every area?
- Are there security lights or street lights that shine into housing areas all night?
- Does natural light shine directly into an enclosure causing a temperature change?
Note: Lights should be turned off at night and on during daytime hours to support the animals’ natural circadian rhythm. Irregular patterns or continuous light or darkness are inherently stressful.