The weight of the clan: even in insects, social isolation can induce a behavioural syndrome.

摘要: Social isolation has dramatic consequences on the development of individuals many vertebrate species, and it induces a set behavioural disturbances rending them unable to process environmental as well social stimuli appropriately. We hypothesized that syndrome is ubiquitous trait life can be observed in wide array including invertebrates. Here we report gregarious cockroaches (Blattella germanica) reared showed (i) stronger exploration-avoidance, (ii) reduced foraging activity, (iii) willingness interact socially, (iv) ability assess mating partner quality than conspecifics groups. demonstrate occurrence induced by isolation, similar syndromes described vertebrates, revealing importance interactions group-living this non-eusocial insect species. suggest investigating effects individual should provide interesting results cohesion species thus constitute an additional tool for comparative studies focusing evolution life.