Table 2 Covariance between d_S, ω (d_N/d_S), gc content, and the three body mass measures (minimum, maximum and average) in 45 bird genomes

d_S

-

−0.0358

(0.425)

0.07445

(0.655)

−0.403

(0.0355) ^b

−0.3965

(0.04) ^b

−0.398

(0.039) ^b

ω

−0.1645

(0.215)

-

−0.9465

(0.0014) ^a

0.499

(0.95) ^b

0.5055

(0.955) ^b

0.507

(0.955) ^b

gc

0.196

(0.83)

−0.9605

(0) ^a

-

−0.534

(0.0425) ^b

−0.5405

(0.0395) ^b

−0.542

(0.0405) ^b

Minimum weight

−0.5005

(0.024) ^a

0.132

(0.64)

−0.1475

(0.345)

-

0.9935

(1) ^a

0.997

(1) ^a

Maximum weight

−0.506

(0.0245) ^a

0.07725

(0.58)

−0.0976

(0.4)

0.9895

(1) ^a

-

0.999

(1) ^a

Average weight

−0.507

(0.023) ^a

0.0979

(0.605)

−0.1168

(0.38)

0.995

(1) ^a

0.999

(1) ^a

-