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Table 2 Effects of life-history variables on mtDNA substitution rate in passerines (n = 88) vs. other bird species (n = 108) without (A) and with phylogenetic control (B).

From: The erratic mitochondrial clock: variations of mutation rate, not population size, affect mtDNA diversity across birds and mammals

  Passerines Non-passerines
Model slope R2 p1 p2 slope R2 p1 p2
(A) Without Phylogenetic control         
Body mass 0.22 0.11 <0.01   -0.17 0.12 <0.01  
Maximum longevity 0.48 0.15 <0.01   -0.41 0.09 <0.01  
Body mass + Maximum longevity   0.17 0.14 0.02   0.13 0.01 0.13
(B) With Phylogenetic control         
Body mass 0.22 0.12 <0.01   -0.11 0.05 0.02  
Maximum longevity 0.4 0.11 <0.01   -0.28 0.05 0.03  
Body mass + Maximum longevity   0.16 0.04 0.05   0.06 0.17 0.22