Social calls of the Leisler's noctule (Nyctalus leisleri)
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Used aggressively while individual bats are in dispute with each other within the roost (Middleton et al., 2020).
Recorded in the vicinity of a roost. Example: 822333
Type C social calls can be classified in subgroups according to their function (Middleton et al., 2020; adapted from Pfalzer and Kusch, 2003).
Type C.c: co-ordination and group cohesion in connection to foraging or roosting activities. Example: 1013600, 822327, 822328
Type C.d1: male advertisement calls. Example: 1034106, 1034102, 1034103, 935408
Type C.d1:
Type D1 is characterized by an opening component in the shape of an elongated S followed by three components (occasionally two) that are simple FM sweeps.
Type D2 is relatively simpler in structure and consists out of more components creating a longer sequence.
Type D3 consists of joined-up components, going down, up and down in frequency like a wave.
Examples of type D1: 1013600
Examples of type D2: 1010369, 1010420
Examples of type D3: 1008061, 1008063, 822413, 822339, 822412
All images on this page are licensed under the following Creative Commons Attribution-NonCommercial-NoDerivs 4.0 license and in courtesy of Sarah Mahie.
Bibliography:
- G. Pfalzer and J. Kusch (2003). Structure and variability of bat social calls: implications for specificity and individual recognition. Journal of Zoology. 261: 21-33. https://doi.org/10.1017/S0952836903003935
- Neil Middleton, Andrew Froud and Keith French (2022). Social Calls of the Bats of Britain and Ireland (second edition). Pelagic Publishing.
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