Collective resilience in a disturbed environment: stability of the activity rhythm and group personality in Periplaneta americana

摘要: Studies on the use of aggregation sites, or communal roosts, found that these roosts have high stability but individuals will migrate to other sites when original site is disturbed otherwise no longer suitable. In this study, dynamics groups Periplaneta americana were examined without interruption for 5 days and 4 nights. Our results showed inside an undisturbed presented stable group personalities choice in site. The aggregated a was repeatedly by lighting stimulus during their resting period not only exhibited also resistance disturbance, which allowed initial remain few days. Regarding personalities, we had distinct with respect total amount time spent outside at sources active sheltered period. For reaction disturbances, between fraction fled migrated study although disturbances strong enough trigger fleeing behaviour induce migration shelter site, disturbance did influence group’s global activity rhythm.