01542nas a2200145   4500008004100000245014900041210006900190260002000259300001100279490000600290520102100296100001701317700002101334856004101355       2017                        eng d00aTemporal variation in acoustic and visual signalling as a function of stream background noise in the Bornean foot-flagging frog, Staurois parvus0 aTemporal variation in acoustic and visual signalling as a functi  cJul-06-20172238  aX74QE00 v13 a<p>High background noise can interfere with signal detection and perception. Bornean foot-flagging frogs, Staurois parvus, live along noisy streams and use both acoustic and visual signals to communicate. It remains unclear why acoustic signalling is retained given that visual signalling appears to have clear advantages under these noisy conditions. We hypothesized that temporal dynamics in stream noise have shaped the multimodal communication system in S. parvus with acoustic signalling at an advantage under more quiet conditions, whereas visual signals will prevail when the noise of rushing water is high after rains. We found that as predicted, male S. parvus increased foot flagging and decreased advertisement calling when presented with playbacks of stream noise compared to less noisy pre-playback conditions. Such context-dependent dynamic-selection regimes are recently gaining wider attention and enhance our understanding of the flexibility seen in the use of multimodal signals in S. parvus.</p>
1 aGrafe, Ulmar1 aTony, Joremy, A.  uhttps://bio.acousti.ca/uk/node/52596