Subject: How does the light intensity of a wood affect the distribution of bluebells

I am investigating the distribution of bluebells in a wood in sussex and I have 
to measure certain factors, one of which is light intensity. I need to know 
whether bluebells grow better in areas of a wood where the light intensity in 
stronge or weaker, I already know that they prefere shaded areas. I also want 
to know if bluebells are more highly distributed in areas of high DAPPLED light 
intensity? 

Re: How does the light intensity of a wood affect the distribution of bluebells