Habitat type and density influence vocal signal design in satin bowerbirds

The Journal of Animal Ecology
J A Nicholls, A W Goldizen

Abstract

1. This study provided a thorough test of the acoustic adaptation hypothesis using a within-species comparison of call structure involving a wide range of habitat types, an objective measure of habitat density and direct measures of habitat-related attenuation. 2. The structure of the bower advertisement call of the satin bowerbird was measured in 16 populations from throughout the species' range and related to the habitat type and density at each site. Transmission of white noise, pure tones and different bowerbird dialects was measured in five of six habitat types inhabited by satin bowerbirds. 3. Bowerbird advertisement call structure converged in similar habitats but diverged among different habitats; this pattern was apparent at both continent-wide and local geographical scales. Bowerbirds' call structures differed with changes in habitat density, consistent with the acoustic adaptation hypothesis. Lower frequencies and less frequency modulation were utilized in denser habitats such as rainforest and higher frequencies and more frequency modulation were used in the more open eucalypt-dominated habitats. 4. The white noise and pure tone transmission measurements indicated that different habitats varied in their sound transm...Continue Reading

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Citations

Jun 7, 2007·Animal Cognition·Joah R Madden
May 19, 2010·Journal of Comparative Psychology·Jason N Bruck, Jill M Mateo
Dec 7, 2006·Biology Letters·David A PutlandAnne W Goldizen
Aug 9, 2006·Evolution; International Journal of Organic Evolution·J A NichollsA W Goldizen
Jun 22, 2010·Evolution; International Journal of Organic Evolution·Joseph A TobiasNathalie Seddon
Sep 8, 2012·Ecology and Evolution·Dominique A Potvin, Kirsten M Parris
May 25, 2016·Animal Cognition·Dominique A Potvin
Jul 31, 2019·Nature Communications·Daria GenzelMichael M Yartsev
Dec 3, 2016·The Journal of the Acoustical Society of America·Raoul SchwingStuart Parsons
Mar 27, 2021·Ecology and Evolution·Fiona BackhouseJustin A Welbergen
Jul 4, 2021·Integrative Zoology·Pan ChenChanghu Lu

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