Table 1.
All datasets: microevolutionary, fossil, and phylogenetic | ||||
Model | Parameter estimates |
Inverse of rate parameters | AIC | |
Bounded evolution | −2940.53 | |||
Brownian motion | −7877.97 | |||
Single-burst | −9018.03 | |||
Multiple-burst | −9142.54 |
Multiple-burst model fit to subsets of the data | ||||
Dataset | Parameter estimates |
|||
Microevolutionary and fossil | ||||
Phylogenetic |
In all models, SDs are in units of the natural log size difference. The inverse of the rate parameters (1/λ) for the exponential distribution and Poisson distribution in the single-burst and multiple-burst models, respectively, can be interpreted as the average number of years until a displacement. The lowest AIC score was for the multiple-burst model.