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Evolution & Ecology Research Centre

School of Biological, Earth and Environmental Sciences
The University of New South Wales

DRIVERS BEHIND THE EVOLUTION OF ACOUSTIC SIGNAL DESIGN IN MAMMALS

What are the drivers behind the evolution of acoustic behaviour across mammals

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BLUE WHALE VOCALISATIONS REVEALS POPULATION STRUCTURE

 

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VOCAL LEARNING

 

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ONTOGENY OF ACOUSTIC SIGNALS - cues signalling age are reversed in leopard seals where older guys have a higher (not lower) pitch

Larger male seals have calls with higher fundamental frequencies than

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FEMALE SOLICITATION CALLS – finding a mate

Female solicitation calls – female seals call when in oestrus

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INDIVIDUAL VARIABILITY IN ACOUSTIC BEHAVIOUR

 

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FRIEND OR FOE : neighbour-stranger recognition

 

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MOTHER-YOUNG RECOGNITION

 

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FEMALES MATERNAL STRATEGY INFLUENCES THE MALE'S VOCALIZATION REPERTOIRE

The number of different call types produced by male seals is influenced by the strategy of maternal care adopted by the females.

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LONG-DISTANCE CALLS - density and calling

 

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HEARING – vocal perception

 

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WHAT CALLS DO THEY MAKE

 

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ANIMAL VOCAL COMMUNICATION

We are interested in the function and evolution of vocal communication signals, including signal design, perception and vocal learning. We take a comparative approach and work across different species.

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