Assessing bite force estimates in extinct mammals and archosaurs using phylogenetic predictions
Autor: | Manabu Sakamoto |
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Rok vydání: | 2022 |
Předmět: |
C770 Biophysical Science
ComputingMethodologies_SIMULATIONANDMODELING Posterior probability Bayesian probability InformationSystems_INFORMATIONSTORAGEANDRETRIEVAL ComputerApplications_COMPUTERSINOTHERSYSTEMS Biology posterior predictive modelling Paleontology medicine ComputingMilieux_COMPUTERSANDEDUCATION phylogenetic predictions dinosaurs Ecology Evolution Behavior and Systematics G340 Statistical Modelling Training set Phylogenetic tree C182 Evolution Regression analysis F641 Palaeontology Regression Bite force quotient Skull medicine.anatomical_structure Taxon Biting Evolutionary biology phylogenetic comparative methods ComputingMethodologies_DOCUMENTANDTEXTPROCESSING bite force regression |
DOI: | 10.17605/osf.io/8n4zg |
Popis: | Bite force is an ecologically important biomechanical performance measure that is informative in inferring the ecology of extinct taxa. However, biomechanical modelling to estimate bite force is associated with some level of uncertainty. Here, I assess the accuracy of bite force estimates in extinct taxa using a Bayesian phylogenetic prediction model. I first fitted a phylogenetic regression model on a training set comprising extant data. The model predicts bite force from body mass and skull width while accounting for differences owing to biting position. The posterior predictive model has a 93% prediction accuracy as evaluated using leave-one-out cross-validation. I then predicted bite force in 37 species of extinct mammals and archosaurs from the posterior distribution of predictive models, generating posterior predictive distributions of null expectations given body mass, skull width and phylogenetic position. Biomechanically estimated bite forces from the literature fall within the posterior predictive distributions for all except four species of extinct taxa and are thus as accurate as predicted from body size and skull width, given the variation inherent in extant taxa and the amount of time available for variance to accrue. Biomechanical modelling remains a valuable means to estimate bite force in extinct taxa and should be reliably informative of functional performances and serve to provide insights into past ecologies. |
Databáze: | OpenAIRE |
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