(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 3. Number of emptied flowers (foraging efficiency; mean ± s.e.m.) after
a 10 min foraging bout by individual Manduca sexta inside the flight
chamber. In each treatment (abscissa) an array of 12 artificial flowers of the
same morph was present. Black bars represent responses to artificial flowers
without square transparency film; gray bars represent responses to the same
artificial flowers covered with a square transparency film. Different letters
denote statistically significant differences with a corrected
-level
for significance of 0.008 (see text).