Dr. Evan Bredeweg and Dr. Tiffany Garcia (OSU Fisheries and Wildlife) are investigating how stressors on tadpoles might carry over onto later life stages by raising Northern Red-Legged frogs from eggs into terrestrial juveniles. 

Amphibian populations have declined world-wide.  Research into their biology is a vital avenue for improving conservation efforts.  Past studies have shown that developing tadpoles respond to environmental stressors but there is little research on adult frogs.  Tadpoles were raised under three predator exposure treatments:  rainbow trout, crayfish and control.  After metamorphosing into young frogs, individuals were tracked using fluorescent powder in runways to examine their movement ability and behavior.  Bredeweg, E.M., 2019. Jumping in with Both Feet: Exploring Factors that Shape Juvenile Amphibian Movement. (Doctoral Dissertation) Wildlife Science, Oregon State University

Bredeweg, E.M. and Garcia, T.S.  2020 submitted.  Aquatic predators and terrestrial environment influence the movement behavior of young frogs.  Behavioral Ecology.Bredeweg, E.M., Urbina, J.,Morzillo, A.T. and Garcia, T.S.  2019.  Starting on the right foot:  Carryover effects of larval hydroperiod and terrain moisture on postmetamorphic frog movement behavior.  Front Ecol. Evol. 7:97.