Social calls used by a leaf-roosting bat to signal location

Author:

Chaverri Gloriana1,Gillam Erin H.2,Vonhof Maarten J.3

Affiliation:

1. Biology Department, Boston University, Boston, MA 02215, USA

2. Department of Biological Sciences, North Dakota State University, Fargo, ND 58108, USA

3. Department of Biological Sciences, Western Michigan University, Kalamazoo, MI 49008, USA

Abstract

Social calls in bats have many functions, including mate attraction and maintaining contact during flight. Research suggests that social calls may also be used to transfer information about roosts, but no studies have yet demonstrated that calls are used to actively attract conspecifics to roosting locations. We document the social calls used by Spix's disc-winged bat ( Thyroptera tricolor ) to actively recruit group members to roosts. In acoustic trials, we recorded two sets of calls; one from flying individuals termed ‘inquiry calls’, and another from roosting bats termed ‘response calls’. Inquiry calls were emitted by flying bats immediately upon release, and quickly (i.e. 178 ms) elicited production of response calls from roosting individuals. Most flying bats entered the roost when roosting individuals responded, while few bats entered the roost in the absence of a response. We argue that information transfer concerning roost location may facilitate sociality in T. tricolor , given the ephemeral nature of roosting structures used by this species.

Publisher

The Royal Society

Subject

General Agricultural and Biological Sciences,Agricultural and Biological Sciences (miscellaneous)

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1. Exploring the role of vocalizations in regulating group dynamics;Philosophical Transactions of the Royal Society B: Biological Sciences;2024-05-20

2. Group vocal composition and decision-making during roost finding in Spix’s disk-winged bats;Philosophical Transactions of the Royal Society B: Biological Sciences;2024-05-20

3. Calling to the collective: contact calling rates within groups of disc-winged bats do not vary by kinship or association;Philosophical Transactions of the Royal Society B: Biological Sciences;2024-05-20

4. Food-associated calls in disc-winged bats;2024-02-28

5. Consistent individual positions within roosts in Spix’s disc-winged bats;Peer Community Journal;2023-11-28

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