Table 1 Annual cane toad sample sizes and trait values.

From: Tradeoffs between dispersal and reproduction at an invasion front of cane toads in tropical Australia

Sample size

Year 1

Year 2

Year 3

719

443

110

Morphological traits

Snout-urostyle length (mm)

100.82 (0.48)

103.49 (0.62)

104.22 (1.24)

Body mass (g)

128.98 (2.19)

135.37 (2.79)

145.06 (5.63)

Head width (mm)

41.10 (0.20)

42.48 (0.26)

42.63 (0.52)

Tibia length (mm)

40.92 (0.19)

41.55 (0.25)

41.86 (0.49)

Sex ratio (% male)

60.22

60.95

78.90

Reproductive traits

Total testes mass (g)

0.20 (0.006)

0.25 (0.009)

0.29 (0.019)

Total ovary mass (g)

5.89 (0.68)

7.53 (0.99)

7.91 (3.05)

Rate of change (haldanes)

Relative head width (all)

 

0.23

−0.10

Relative head width (male)

 

0.27

−0.08

Relative head width (female)

 

0.18

−0.02

Relative tibia length (all)

 

−0.21

0.02

Relative tibia length (male)

 

−0.04

−0.05

Relative tibia length (female)

 

−0.49

−0.27

Relative testes mass

 

0.32

−0.55

Relative ovary mass

 

0.11

−0.14

  1. Table shows mean values and associated SEs for data from each year of the study. “Relative” variables are residual scores from the linear regression of that trait on snout-urostyle length (linear traits) or body mass (mass-based traits).
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