Personality affects defensive behaviour of Porcellio scaber (Isopoda, Oniscidea)

摘要: We evaluated individual behavioural patterns of isopods expressed as tonic immobility following some intrusive treatments. Common rough woodlice, Porcellio scaber, were kept individually in plastic boxes and tested for repeatedly. Reactivity, sensitivity (number stimuli needed to respond), endurance (TI) according three types treatments (touch, squeeze, drop) evaluated. Touch was the weakest treatment it necessary repeat a number times obtain response; while squeeze drop induced TI more frequently. Nevertheless, duration response persisted longer time with touch treatment. Within each set treatment, strongest third one, regardless type. Duration reaction affected by size woodlouse, smallest individuals feigning death shortest time. Despite body size, we found significant pattern among which stable across well (5 repetitions during 3 week period). scaber is one first species terrestrial documented personality traits.