Intra-specific communication in anuran amphibians is primarily achieved with vocal signals (Duellman and Trueb 1994). However, some species also use visual displays for interand/ or intra-sexual communication (Hodl and Amezquita 2001). Such displays include movement of the fore and/ or hindlimbs (e.g. hand-waving, foot-flagging and/or legflicking), movement of the body or posturing, and exhibition of a brightly coloured vocal sac (Hodl and Amezquita 2001; Hirschmann and Hodl 2006). Visual signalling is hypothesised to be an alternative or complementary mode of communication in anurans used under certain environmental and/or social conditions (e.g. in noisy or visually complex environments) (Amezquita and Hodl 2004).
Further observations of visual signalling in Australo-Papuan hylid frogs of the genus Litoria (Tschudi)
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E. Meyer, K. A. Murray, H.B. Hines; Further observations of visual signalling in Australo-Papuan hylid frogs of the genus Litoria (Tschudi). Australian Zoologist 1 January 2012; 36 (1): 55–58. doi: https://doi.org/10.7882/AZ.2012.006
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