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Table 6 Best fit phylogenetic generalized linear models (∆AICc < 3) explaining sperm head length in gastropods

From: Breeding system, shell size and age at sexual maturity affect sperm length in stylommatophoran gastropods

Model

Model specification

AICc

∆AICc

Weight

SpermHGast1

Head length ~ 1 + Lifespan

235.2

0.00

0.143

SpermHGast2

Head length ~ 1 + Age

235.6

0.43

0.116

SpermHGast3

Head length ~ 1 + Breeding + Shell type

235.6

0.46

0.114

SpermHGast4

Head length ~ 1 + Age + Breeding + Shell type

236.3

1.07

0.084

SpermHGast5

Head length ~ 1 + Age + Breeding

236.4

1.21

0.078

SpermHGast6

Head length ~ 1 + Breeding + Lifespan + Shell type

236.4

1.23

0.078

SpermHGast7

Head length ~ 1 + Age + Reproduction

236.7

1.49

0.069

SpermHGast8

Head length ~ 1 + Lifespan + Reproduction

236.7

1.55

0.066

SpermHGast9

Head length ~ 1

236.9

1.68

0.062

SpermHGast10

Head length ~ 1 + Breeding + Lifespan

236.9

1.75

0.060

SpermHGast11

Head length ~ 1 + Age + Reproduction + Shell type

237.2

2.03

0.052

SpermHGast12

Head length ~ 1 + Age + Lifespan

237.5

2.27

0.046

SpermHGast13

Sperm length ~ 1 + Lifespan + Reproduction + Shell type

238.0

2.86

0.034

  1. Age: age at sexual maturity; Breeding: breeding system; Reproduction: reproductive mode
  2. Sample size: 57 species