From: Mid-Cenozoic climate change, extinction, and faunal turnover in Madagascar, and their bearing on the evolution of lemurs
Speciation Rate λ
Extinction Rate μ
AICc
λ1
λ2
μ1
μ2
Constant
539.30
0.25
0.19
Time-varying
540.07
0.23
−0.02
0.09
539.67
0.22
0.11
0.02
540.65
0.08