Skip to main content


Figure 2 | BMC Evolutionary Biology

Figure 2

From: Testing comparative phylogeographic models of marine vicariance and dispersal using a hierarchical Bayesian approach

Figure 2

Hyper-posterior and Hyper-prior samples given Marquesas DNA sequence data (seven taxon-pairs). Dashed lines depict hyper-prior distributions and solid lines depict hyper-posterior distributions. Stage 1 hyper-parameter estimates: (A) Average effective population size E((θ τ )2) of the putatively colonized endemic populations at the seven isolation times (T C and T V ). (B) The number of descendent populations per seven (Y) taxon-pairs that arise by colonization at times T C = { τ C 1 , ... , τ C Z } MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacPC6xNi=xH8viVGI8Gi=hEeeu0xXdbba9frFj0xb9qqpG0dXdb9aspeI8k8fiI+fsY=rqGqVepae9pg0db9vqaiVgFr0xfr=xfr=xc9adbaqaaeGaciGaaiaabeqaaeqabiWaaaGcbaGaemivaq1aaSbaaSqaaiabdoeadbqabaGccqGH9aqpcqGG7bWEcqaHepaDdaqhaaWcbaGaem4qameabaGaeGymaedaaOGaeiilaWIaeiOla4IaeiOla4IaeiOla4IaeiilaWIaeqiXdq3aa0baaSqaaiabdoeadbqaaiabdQfaAbaakiabc2ha9baa@3F00@ . Stage 2 hyper-parameter estimates where hyper-prior is conditional given constant value of Z = 7: (C) ΩC dispersion index of Z = 7 colonization times; Ω C = Var(τ C )/E(τ C ) where τ C is colonization time. (D) E(τ C ), average colonization time across Z = 7 colonization times. For each estimate, tolerance was 0.001 (2,000 accepted draws) using the local regression algorithm.

Back to article page