Evolution2016: Grad student Natalie Hofmeister gave a talk on how birds cope with and adapt to environmental variability, titled “Environmental fluctuations influence the evolution of the glucocorticoid receptor in African starlings.” She found that starling lineages that experience greater variance in rainfall show lower rates of substitution in this stress hormone receptor, suggesting that there may be selection to maintain a successful coping strategy in response to extreme fluctuations in rainfall.
