Ichimaru Gin has posted a study of the effects of moonlight on organisms in a section where only FE believers can respond, so I'm responding here instead:
1. The rattlesnake study didn't even use real moonlight.
2. There need to be control studies comparing the lighting patterns of moonlight against a similar lighting pattern of light from a non-moon source. Without this, no conclusions can be drawn about the properties of moonlight, merely about organism's reactions to any light of a certain intensity and periodicity.