Creeping Zinnia - UV pattern when "bee ready"?

I noticed that on a Creeping Zinnia young flowers (in front) do not show a prominent UV pattern, but others do (the one in the back), which are ready for pollination. 

[click on image to see a larger one]

Visible light image 


Simulated butterfly vision (UV=blue) 


I wonder if that UV pattern would disappear when pollination has successfully happened? I guess that would be worth some scientific study (or maybe I should do it?)... 

Stay tuned, more will follow on that fascinating subject...

More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos

Bidens - how she does it (simulated butterfly vision)

Bidens never ceases to amaze me...

The far-away white/yellow guide for insects is completely invisible for us. Then the blue UV reflection of the "husk" protecting the stamen + pollen just before it opens up to reveal the pollen, yet at the same time acting as a guide for the insects when they are close enough (insects only see sharp close-up). 

[click on image to see a larger one]

Visible light image 


Simulated butterfly vision (UV=blue) 


These are my personal assumptions btw. and I would think it would be worth working on that scientifically...maybe I should. Isn't nature simply amazing....?!

Stay tuned, more will follow on that fascinating subject...

More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos