Important sampling notes
It is important to point out that most CV observations were made when the species were perched (rare behavior in reproductive sites), in copulation or oviposition, thus detectable with the naked eye. In these cases, it was not necessary to use HSV as the individual was already recorded with CV. HSV was typically used when individuals were in flight and nearly impossible to identify with the naked eye. Thus, observations acquired with CV and HSV cover different behaviors and rarely overlap. If an individual was observed with both CV and HSV on the same day, the HSV observation was discarded since it was then data that could have been obtained with CV. Instead of comparing CV with HSV, we are interested here in assessing how HSV can supplement data that could not be observed with CV and how this potential increase in the resolution of data improves demographic estimates. To accomplish this goal, we compare CV with CV+HSV.