Fig. 2From: Vitality models found useful in modeling tag-failure times in acoustic-tag survival studiesFour examples of tag-failure datasets with curves representing top-ranking survival models based on our GOF measure versus the Vitality 2009 model. Each panel describes an example with the Kaplan–Meier empirical estimates, the fit from the 2009 Vitality model and the top-ranked model according to our GOF measure a log-logistic, b 3-parameter gamma, c Gompertz, d and 2-parameter gammaBack to article page