Gabriel Jamie had an excellent visit to our collaborators Dr Moses Chibesa, Dr Ngawo Namukonde and Stanford Siachoono at Copperbelt University in Kitwe. Gabriel met with researchers and students in the Department of Zoology and Aquatic Sciences in the School of Natural Resources to discuss future collaborations and training workshops. Gabriel also gave a seminar on the current research being conducted by our group in the Choma area. Thank you to the Copperbelt team for their hospitality and all the stimulating discussion.
Our paper ‘Why and how to apply Weber’s Law to coevolution and mimicry’ has been published in the journal Evolution. This perspectives paper, written by Tanmay Dixit, Eleanor Caves, Claire Spottiswoode, and Nicholas Horrocks, argues that Weber’s Law of proportional processing can lead to otherwise counterintuitive predictions about the evolutionary trajectories of mimicry systems. Weber’s Law states that when the magnitude of a stimulus is large, it is more difficult to discriminate a change or difference from that stimulus. In other words, relative differences are more salient than absolute differences. We show that Weber’s Law could have implications for mimicry: when stimulus magnitudes are high, it should be more difficult to discriminate a model from a mimic. This leads to testable predictions about evolutionary trajectories of models and mimics. We also present a framework for testing Weber’s Law and its implications for coevolution.