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. Author manuscript; available in PMC: 2018 Jan 21.
Published in final edited form as: J Anim Ecol. 2017 May 2;86(4):908–920. doi: 10.1111/1365-2656.12664

Table 3.

Hypotheses, models and AIC diagnostics

Lamb survival predictors Model AIC Delta-AIC AIC weight
Interactions with specific groups of infected animals Dam’s antibodies β0 + β1PIReproEwe + β2PIDryYrl + β3M 48·41 0 0·59
Associations with specific groups of infected animals β0 + β1PAReproEwe + β2PADryYrl + β3M 49·25 0·84 0·39
Dam’s antibodies
Total population size β0 + β1PopEst 55·46 7·06 0·02
Interactions with specific groups of animals regardless of infection status Dam’s antibodies β0 + β1DReproEwe + β2DDryYrl + β3M 57·13 8·72 0·01
Associations with specific groups of infected animals β0 + β1PAReproEwe + β2PADryYrl 60·37 11·96 No support
Interactions with specific groups of infected animals β0 + β1PIReproEwe + β2PIDryYrl 60·43 12·02 No support
Associations with specific groups of animals regardless of infection status Dam’s antibodies β0 + β1CReproEwe + β2CDryYrl + β3M 63·51 15·1 No support
Interactions with specific groups of animals regardless of infection status β0 + β1DReproEwe + β2DDryYrl 64·47 16·06 No support
Dam’s antibodies β0 + β1M 67·24 18·83 No support
Constant risk β0 70·75 22·34 No support
Total associations with infected animals, regardless of demographic state β0 + β1Σ(PAReproEwe + PADryYrl) 72·25 23·84 No support
Associations with specific groups of animals regardless of infection status β0 + β1CReproEwe + β2CDryYrl 71·81 23·4 No support
Total associations with all animals, regardless of infection status or demographic state β0 + β1Σ(CReproEwe + CDryYrl) 77·11 28·69 No support
Total interactions with all animals, regardless of infection status or demographic state β0 + β1Σ(DReproEwe + DDryYrl) 77·91 29·49 No support