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Table 3 Summary table of final models and parameters. ‘x’ represents the interaction terms. Explanatory variables are fixed unless specified otherwise. Colony status: queenless or queenright, worker type: physogastric or normal A. gracilipes

From: Origin, behaviour, and genetics of reproductive workers in an invasive ant

Section Model and distribution Response variable Explanatory variables
Dissections of worker’s ovaries of entire colonies GLM binomial Presence or absence of mature oocytes Colony status
Worker type
GLM binomial Worker type Colony status
Colony observations GLMM binomial Whether the colony ever produced males Whether the colony ever had a queen
Maximum number of workers
Whether the colony ever had a queen x Max. number of workers
Number of days in captivity (random)
Morphometry and genotyping LMM Head width or Weber’s length or wing width or wing length Male source
Colony of origin (random)
Queen transfer experiment GLMM binomial Proportion of normal workers until day 60 Timea
Colony status
Timea x Colony status
Colony of origin (random)
GLMM binomial Proportion of normal workers until day 120 Timea
Colony status
Timea x Colony status
Colony of origin (random)
GLMM binomial Presence or absence of workers in the foraging area Worker type
Colony status
Colony of origin (random)
GLMM binomial Presence absence mature oocytes Colony status
Worker type
Colony of origin (random)
Aggression tests CLMM Maximal aggression score Colony status
Worker type
Colony status x Worker type
Colony of origin (random)
GLMM negative binomial Survival of all three A. gracilipes workers Colony status
Worker type
Colony status x Worker type
Colony of origin (random)
GLMM binomial Survival of the O. smaragdina worker Colony status
Worker type
Colony status x Worker type
Colony of origin (random)
GLM binomial Species initiating the fight Colony status
Worker type
Colony status x Worker type
GLMM binomial Presence absence of mature oocytes Colony status
Worker type
Colony of origin (random)
  1. a days since the start of the queen transfer experiment