Research was carried out to investigate the effect of the direction of incident light on the behavioural response of Calliphora larvae. They were centrally placed onto a piece of white paper marked with positive, negative and neutral in a circular chart. White light was shone onto the maggot from one direction and the subsequent direction and speed of movement was measured.
             Results suggest that the directional movement of the Calliphora is influenced by the angle of light and that the maggots showed negative phototaxis behaviour. This supports work which was carried out by previous researchers. This response of moving away from the incident light may offer the Calliphora larvae increased chance of survival.
             Larvae of the Calliphora species demonstrated negative phototaxis when illuminated with incident light radiation. Taxis is an orientation movement towards or away from a light stimulus. Negative phototaxis is the movement away from a light stimulus. In this investigation the maggots were kept in the same conditions and were placed individually into the experimental area. The maggots were then illuminated in light from only one direction and there response was observed. The vast majority of the maggots (80%) moved away from the light, exhibiting negative phototaxis behaviour. Calliphora larvae have a limited protection from UV radiation, the negative phototaxis behaviour shown will take them away from the harmful radiation will improve their chance of survival.
             After my preliminary work I found a few problems which would cause my investigation to not be as accurate as possible. These problems are:
             • The investigation in my plan was only measuring the rate of movement for the maggot. From my preliminary work I found that this wasn't enough to get the
             • results as accurate as I wanted them, I would now like to introduce a new criteria then I will be measuring, this is the direction of the maggot moves in re...