Table 4 Life history predictors of US live wildlife trade probability and frequency in amphibians from hurdle models

From: Human activities favour prolific life histories in both traded and introduced vertebrates

  

Posterior mean

l-95% CI

u-95% CI

% crossing 0

VIF

Binary

Clutch size

−0.43

−1.78

0.95

26.06

2.58

 

Egg size

−5.94

−11.38

−0.71

1.60

2.67

 

Age of sexual maturity

−2.72

−6.42

1.20

8.30

1.32

 

Reproductive lifespan

4.35

2.19

6.70

0.00

1.12

 

Snout-vent length

5.51

0.74

9.97

0.68

1.68

Frequency

Clutch size

0.09

−0.68

1.02

44.46

2.58

 

Egg size

−1.90

−5.11

1.38

12.68

2.67

 

Age of sexual maturity

−1.10

−3.26

1.30

16.52

1.32

 

Reproductive lifespan

1.26

−0.08

2.53

3.74

1.12

 

Snout-vent length

0.34

−2.25

2.73

39.22

1.68

  1. Full parameters for hurdle model predicting US live wildlife trade probability and frequency in amphibians, including all predictors as none had VIFs>5 (N = 132, H2 for binary component = 0.28 [0.01, 0.63], H2 for poisson component = 0.20 [0.00, 0.95]). Posterior mean = mean β coefficient from posterior distributions, l-95% CI and u-95% CI = lower and upper 95% credible intervals from posterior distributions respectively, % crossing zero = percentage of estimates in the posterior distribution that overlap with zero in the direction opposite to the majority of the distribution, VIF variance inflation factors. For ease of interpretation, effects from the binary component of the model are reversed in sign (so that they represent effects on the probability that the outcome variable is 1 or more, rather than 0).
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