# How fast should an animal run when escaping? An optimality model based on the trade-off between speed and accuracy

Wheatley, Rebecca, Angilletta Jr., Michael J., Niehaus, Amanda C. and Wilson, Robbie S. (2015). How fast should an animal run when escaping? An optimality model based on the trade-off between speed and accuracy. In: Towards a General Framework for Predicting Animal Movement Speeds in Nature, West Palm Beach, Florida, (1166-1175). 3-7 January 2015. doi:10.1093/icb/icv091

Author Wheatley, RebeccaAngilletta Jr., Michael J.Niehaus, Amanda C.Wilson, Robbie S. How fast should an animal run when escaping? An optimality model based on the trade-off between speed and accuracy Towards a General Framework for Predicting Animal Movement Speeds in Nature West Palm Beach, Florida 3-7 January 2015 Wilson, Robbie S. Integrative and Comparative Biology   Check publisher's open access policy Oxford, United Kingdom Oxford University Press 2015 2015 Fully published paper 10.1093/icb/icv091 Not Open Access 1557-70231540-7063 55 6 1166 1175 10 eng How fast should animals move when trying to survive? Although many studies have examined how fast animals can move, the fastest speed is not always best. For example, an individual escaping from a predator must run fast enough to escape, but not so fast that it slips and falls. To explore this idea, we developed a simple mathematical model that predicts the optimal speed for an individual running from a predator along a straight beam. A beam was used as a proxy for straight-line running with severe consequences for missteps. We assumed that success, defined as reaching the end of the beam, had two broad requirements: (1) running fast enough to escape a predator, and (2) minimizing the probability of making a mistake that would compromise speed. Our model can be tailored to different systems by revising the predator’s maximal speed, the prey’s stride length and motor coordination, and the dimensions of the beam. Our model predicts that animals should run slower when the beam is narrower or when coordination is worse. C1 Provisional Code UQ

 Document type: Conference Paper Official 2016 Collection School of Biomedical Sciences Publications

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