Effects of multiple pesticides on gonadal development of frogs

Dr. Jason Rohr (University of South Florida) recently conducted a large experiment where he exposed aquatic communities including several frog species to several different classes of pesticides (e.g. several herbicides and several insecticides).  I am conducting gonadal histology on frogs which was not examined as part of the original study.  This work is important because there is often low mortality after exposure to pesticides (at ecologically relevant concentrations), but might be high incidences of gonadal abnormalities. This experimental design allows us to contrast different types of pesticides and will help identify chemicals that induce fewer abnormalities. It is our hope and belief that provided with the proper information farmers will choose to use pesticides that cause fewer negative effects.

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