| Abstract: | Acoustic advertising displays (n=75) of male Musk Ducks Biziura lobata were analysed at ten widely spaced geographic localities in South Australia, Victoria, and Western Australia. Vocalisations differed in a fixed, non-overlapping pattern between allopatric Musk Duck populations in southeastern and southwestern Australia. These findings suggest that Musk Duck populations are subdivided by the Nullarbor Plain, the arid treeless desert at the head of the Great Australian Bight. Three vocalisations performed by male Musk Ducks not previously reported in the literature were documented also. Vocalisations of captive Musk Ducks collected from different geographic regions (southeast and southwest) differed between regions from which captives originally were collected and were unlike those performed by wild birds. Based on calls of immature Musk Ducks, acoustic variation within regional populations and the apparent inability of captive Musk Ducks reared in isolation to develop the wild type adult call, regional dialects seemingly are acquired in a social context by repeated observance of adult males and some combination of social imprinting, learning, or practice. |
| Genre: | Article |
| ProdID: | 70024173 |
| Citation Author: | McCracken, K. G.; Fullagar, P. J.; Slater, E. C.; Paton, D. C.; Afton, A. D. |
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| Citation End Page: | 154 |
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| Citation Language: | English |
| Citation Larger Work Title: | Wildfowl |
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| Citation Number Of Pages: | 18 |
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| Citation Search Results Text: | Advertising displays of male Musk Ducks indicate population subdivision across the Nullarbor Plain of Australia; 2002; Article; Journal; Wildfowl; McCracken, K. G.; Fullagar, P. J.; Slater, E. C.; Paton, D. C.; Afton, A. D. |
| Citation Start Page: | 137 |
| Citation Volume: | 53 |
| Citation Year: | 2002 |
| Type: | citation/reference |
| Text: | Advertising displays of male Musk Ducks indicate population subdivision across the Nullarbor Plain of Australia; 2002; Article; Journal; Wildfowl; McCracken, K. G.; Fullagar, P. J.; Slater, E. C.; Paton, D. C.; Afton, A. D. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 2002 00:00 -0600 |
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