UV reflectance in poison frog

We have identified strong UV reflectance in the white spots of only a
single population of the polymorphic/polytypic poison frog species Oophaga
sylvatica. As congeners (O. pumilio) are unable to view UV signals, it
stands to reason that natural selection, or neutral processes are likely
to be responsible for these signals. We employ visual modeling techniques
to estimate the perception of these UV signals, and in a series of
comparisons we show surprisingly minimal gains in frog contrast due to
their addition.