A b s t ra c t. we studied agonistic behaviour of male and female house mice from two distant populations (Bohemia and Eastern Turkey) each belonging to a different subspecies (Mr.r ntusculus ntusculus and Mus ntusculus domesticus respectively). Two hundred dyadic interactions in a neutral cage were performed following a balanced design. The effects of sex, population, testing order, and their ...

We have characterized the behavioural patterns of crayfish during agonistic bouts between groups of crayfish of four different body lengths (9-19, 20-32, 41-48 and 69-75 mm) to characterize changes in the patterns of agonistic encounter during development. The behaviour of both dominant and subordinate animals was analysed by single frame measurement of video recordings. Behavioural acts that o...

Agonistic behaviour of crayfish has been studied extensively in laboratory settings where pairs or groups of individuals are allowed to interact within an experimental arena. Crayfish agonistic behaviour within its natural context, however, has received little attention to date. The present, non-manipulative field study explored activity patterns, behavioural repertoires, and agonistic encounte...

What attributes make some individuals more likely to win a fight than others? A range of morphological and physiological traits have been studied intensely but far less focus has been placed on the actual agonistic behaviours used. Current studies of agonistic behaviour focus on contest duration and the vigour of fighting. It also seems obvious that individuals that fight more skilfully should ...

The effect of the pre-weaning housing system on play behaviour before weaning and agonistic behaviour after weaning and during the fattening period was investigated in 32 litters of domestic pigs. Three preweaning housing systems were compared: poor crate (standard farrowing crate without straw), enriched crate (crate with straw, 20% larger), and, as a control, a farrowing pen (pen with straw, ...