Abstract
AbstractFrequent roost switching in fission–fusion societies of tree-dwelling bats is closely associated with swarming behaviour entailing ritualised night-time displays around the roost tree and/or at the roost entrance to signal its actual location, particularly immediately prior to sunrise. However, effects of demographic characteristics of individuals in this social behaviour remain unanswered. Using passive integrated transponders (PIT) and automatic readers, we recorded swarming activity of members of a Daubenton’s bat (Myotis daubentonii) maternity colony in the vicinity of their roosts. In total, 59,622 activity events of 281 PIT-tagged individuals were recorded on ten monitored roosts during three summer seasons. We found a gradual increase of swarming activity from midnight to sunrise in old adult females, whereas young females and juveniles primarily swarmed later at dawn. We attribute this difference to the learning status of younger bats, which are not yet able to perform a defined pattern of swarming activity, whereas older bats likely take a more active role in signalling the position of the roost. Old males exhibited the least swarming activity at maternity roosts, which mostly occurred between crepuscular periods, presumably due to their solitary lives. A negative correlation between genetic distance and swarming activity suggests an important role of kinship in the formation of the maternity colony as well as group cohesion during roost switching.
Funder
Agentúra na Podporu Výskumu a Vývoja
Publisher
Springer Science and Business Media LLC
Reference67 articles.
1. Green, P. A., Brandley, N. C. & Nowicki, S. Categorical perception in animal communication and decision-making. Behav. Ecol. 31, 859–867 (2020).
2. Petak, I. Ritualization. In Encyclopedia of Animal Cognition and Behavior (eds Vonk, J. & Shackelford, T.) 1–4 (Springer International Publishing, Cham, 2019).
3. Fernandez, A. A., Fasel, N., Knörnschild, M. & Richner, H. When bats are boxing: Aggressive behaviour and communication in male Seba’s short-tailed fruit bat. Anim. Behav. 98, 149–156 (2014).
4. van Schaik, J. et al. Bats swarm where they hibernate: Compositional similarity between autumn swarming and winter hibernation assemblages at five underground sites. PLoS ONE 10, e0130850 (2015).
5. Vaughan, T. & O’Shea, T. Roosting ecology of the Pallid bat, Antrozous pallidus. J. Mammal. 57, 19–42 (1976).
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