ABS 2022
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Are Individual Differences Repeatable? Untangling Behavioral Axes Using D. tinctorius Poison Frogs  
Faith O Hardin. University of Illinois, Urbana-Champaign, IL, United States

Recently, there has been increased interest in correlated individual differences. However, the represented species are highly skewed towards birds, mammals, and fish, with only 24 species of amphibians tested thus far. Of these studies in amphibians, many have failed to test for repeatability, a crucial aspect when attempting to draw consistent correlations between behavioral traits. Additionally, approaches vary, and many have been criticized for their inability to distinguish between discrete behaviors (i.e. boldness, activity, exploration). To explore individual differences in amphibians, I used Dendrobates tinctorius poison frogs and robust methods designed to tease apart behaviors. Each frog experienced the same set of trials three times: baseline movement in a familiar environment (activity), latency to move from a familiar to novel environment (boldness), and movement within both familiar and novel environments (exploration). Given the importance of consistent individual differences for understanding the proximate causes and ecological consequences of behavioral variation, we provide robust methodology for a grossly understudied taxonomic group.