2003
DOI: 10.1007/s00040-003-0624-1
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Nestmate discrimination in ants: effect of bioassay on aggressive behavior

Abstract: Aggression assays are commonly used to study nestmate recognition in social insects. Methods range from detailed behavioral observations on small numbers of insects to counts of individuals fighting in group interactions. These assays vary in the equipment used and the intensity and duration of observations. We used the Argentine ant, Linepithema humile, to compare four aggression bioassays for consistency between replicates, similarity between assays, and ability to predict whole colony interactions. The assa… Show more

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Cited by 143 publications
(138 citation statements)
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“…For the behaviour assays, one-on-one encounters were chosen because they represent encounters of single workers foraging distantly from the nest (Roulston et al 2003), thus mimicking natural conditions. Encounters were performed following Giraud et al (2002) with modifications (see Supplementary online material for details on one-on-one encounters).…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…For the behaviour assays, one-on-one encounters were chosen because they represent encounters of single workers foraging distantly from the nest (Roulston et al 2003), thus mimicking natural conditions. Encounters were performed following Giraud et al (2002) with modifications (see Supplementary online material for details on one-on-one encounters).…”
Section: Methodsmentioning
confidence: 99%
“…Encounters were performed following Giraud et al (2002) with modifications (see Supplementary online material for details on one-on-one encounters). Four replicates of each pairwise intra- and internest combination were filmed for 3 min (Roulston et al 2003). The films were examined in slow motion, and the observer had access to the information of the origin of workers.…”
Section: Methodsmentioning
confidence: 99%
“…We assessed the initial level of aggression between 18 colony pairs (listed below) with an assay that measured the level of aggression in single worker introductions into a foreign colony. This behavioral assay has low variance among replicates within the same colony pairing (Roulston et al, 2003). Individual intruder workers were collected on a toothpick and introduced into rearing trays (52 Â 38 cm) containing a resident colony (õ10,000 workers).…”
Section: Methodsmentioning
confidence: 99%
“…All assays to estimate the initial aggression levels were performed within a week of collection and extraction of ants from the original nesting substrate. Data were analyzed as the maximum score per trial (Roulston et al, 2003).…”
Section: Methodsmentioning
confidence: 99%
“…Contests were initiated by barrier removal. Agonistic behaviour by each worker was recorded using scan samples at 5 min intervals for the 30 min contest [31]. Agonistic behaviour was recorded as (i) threat to an opponent, (ii) seizing of an opponent's leg or antenna, or (iii) attack on an opponent.…”
Section: Methodsmentioning
confidence: 99%