Table A1.

Description of the sets of 33 variables used to describe the competitive interactions. Descriptors in italics were removed from the study following the collinearity analysis (Spearman correlation value >0.7 with others).

Aggressiveness of L. humile
n_deadtot_opp	total number of dead opponent workers
ETdead_opp	standard deviation of the number of dead opponent workers over time
t_50dead_opp	time when 50% of the opponent mortality load have been diagnosed
t_interact	time of the first interaction between L. humile and opponent workers
t_maxfights	time when the maximal number of simultaneous fights occurs
ET_fights	standard deviation of the numbers of fights over time
mean_fights	mean number of simultaneous fights during the contest
max_fights	max number of simultaneous fights during the contest
Strength of the competition by the other species
n_deadtot_Lh	total number of dead workers of L. humile
t_50dead_Lh	time when 50% of the L. humile mortality load have been diagnosed
ETdead_Lh	standard deviation of the number of dead L. humile workers over time
t_arena_opp	time of the opponent entrance in the arena
t_bait_opp	time of opponent resources’ discovery
t_maxarena_opp	time when the max. number of opponent workers occurs in the arena
mean_arena_opp	mean number of opponent workers simultaneously present in the whole arena
max_arena_opp	max number of opponent workers simultaneously present in the whole arena
ETarena_opp	standard deviation of the numbers of opponent workers on the arena over time
t_maxbait_opp	time when the maximal number of opponent workers on the bait occurs
ETbait_opp	standard deviation of the numbers of opponent workers on the bait over time
mean_bait_opp	mean number of opponent workers on the bait
Space occupation by L. humile
t_arena_Lh	time of the entrance in the arena of L. humile
t_maxarena_Lh	time when the max. number of workers of L. humile occurs in the arena
max_arena_Lh	max number of L. humile workers simultaneously present in the whole arena
mean_arena_Lh	mean number of L. humile workers simultaneously present in the whole arena
ETarena_Lh	standard deviation of the numbers of workers on the arena over time
L. humile ability to exploit resources
n_totprey_Lh	total number of preys brought by L. humile
t_bait_Lh	time of resources’ discovery by L. humile
t_maxbait_Lh	time when the maximal number of L. humile individuals on the bait occurs
ETbait_Lh	standard deviation of the numbers of L. humile workers on the bait over time
mean_bait_Lh	mean number of L. humile workers on the bait
ETprey_Lh	standard deviation of the preys brought over time
t_50prey_Lh	time when 50% of the final prey load
t_maxprey_Lh	time when the maximal number of preys have been brought in the nest