From: Origin, behaviour, and genetics of reproductive workers in an invasive ant
Response and explanatory variables | df | χ2 or LRstat | p |
---|---|---|---|
1. Male production, GLMM binomial, n = 233 colonies | |||
Whether the colony ever had a queen | 1 | 2.28 | 0.13 |
Maximum number of workers | 1 | 35.35 | < 0.0001*** |
Days in captivity | 1 | 3.17 | 0.08 |
Whether the colony ever had a queen x max. Number of workers | 1 | 7.58 | < 0.0059** |
Whether the colony ever had a queen x days in captivity | 1 | 3.04 | 0.08 |
2. Proportion of normal workers until day 60, GLMM binomial, n = 100 observations and 10 colonies | |||
Colony status (queenright or queenless) | 1 | 1.80 | 0.18 |
Time (since the beginning of the experiment) | 4 | 15.57 | 0.0037** |
Colony status x Time | 4 | 14.49 | 0.0059** |
Proportion of normal workers until day 120, GLMM binomial, n = 54 observations and 3 colonies | |||
Colony status (queenright or queenless) | 1 | 0.0001 | 0.99 |
Time (since the beginning of the experiment) | 8 | 47.26 | < 0.0001*** |
Colony status x Time | 8 | 37.92 | < 0.0001*** |
3. Maximal aggression score, CLMM, n = 70 | |||
Colony status | 1 | 5.66 | 0.0173* |
Worker type | 1 | 6.65 | 0.0099** |
Colony status x Worker type | 1 | 1.30 | 0.25 |
Survival of all three A. gracilipes workers, GLMM negative binomial, n = 70 | |||
Colony status | 1 | 2.45 | 0.12 |
Worker type | 1 | 0.33 | 0.57 |
Colony status x Worker type | 1 | 1.83 | 0.18 |
Survival of the O. smaragdina worker, GLMM binomial, n = 70 | |||
Colony status | 1 | 14.45 | < 0.0001*** |
Worker type | 1 | 1.53 | 0.22 |
Colony status x Worker type | 1 | 6.19 | < 0.0129* |
Species initiating the fight, GLM binomial, n = 51 | |||
Colony status | 1 | 4.12 | 0.0423* |
Worker type | 1 | 5.25 | 0.0220* |
Colony status x Worker type | 1 | 0 | 0.99 |
Presence absence of mature oocytes, GLMM binomial, n = 210 | |||
Colony status | 1 | 5.52 | 0.01876* |
Worker type | 1 | 20.40 | < 0.0001*** |