(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. 4. Relationship between cricket perception level (cercal hair canopy response)
and predator signal intensity (air particle velocity) for the five cricket
populations. (A) Running predator (f=30 Hz), (B) flying predator
(f=170 Hz). Arrows indicate, for a given perception level, the
difference in air flow intensity detected between the more and the less
sensitive population.