Table 2

Behavioural interactions between silverfish and ants and behavioural categories used for calculating the aggression index.

Behaviour

Definition

Category


Ignored

An ant worker touches the silverfish once with its antennae and moves on without any sign of behavioural modification.

-

Groomed

An ant grooms the silverfish with its mouthparts. The silverfish remains in position.

-

Avoid

When an ant approaches, the silverfish avoids contact by quick escape.

-

Antennated

An ant touches a silverfish repeatedly with its antennae for longer than two seconds without displaying other behaviours.

-

Unnoticed

An ant comes into and perhaps stays in contact with a silverfish, but not with its antennae; the ant does not modify its behaviour.

-

Chased

An ant touches the silverfish with its antennae and quickly lunges in its direction.

Aggressive

Snapped

An ant touches the silverfish with its antennae and snaps with its mandibles in the direction of the silverfish.

Aggressive

Stung

An ant touches the silverfish with its antennae, lunges forward and bends its gaster in the direction of the opponent. The attempt is not necessarily successful.

Aggressive

Seized

An ant snapped at and subsequently seized a silverfish in its mandibles.

Aggressive


von Beeren et al. BMC Ecology 2011 11:30   doi:10.1186/1472-6785-11-30

Open Data