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Receiver bias and the acoustic ecology of aye-ayes (Daubentonia madagascariensis).
- Source :
-
Communicative & Integrative Biology . Nov/Dec2012, Vol. 5 Issue 6, Special section p1-640. 4p. - Publication Year :
- 2012
-
Abstract
- The aye-aye is a rare lemur from Madagascar that uses its highly specialized middle digit for percussive foraging. This acoustic behavior, also termed tap-scanning, produces dominant frequencies between 6 and 15 kHz. An enhanced auditory sensitivity to these frequencies raises the possibility that the acoustic and auditory specializations of aye-ayes have imposed constraints on the evolution of their vocal signals, especially their primary long-distance vocalization the screech. Here we explore this concept termed receiver bias, and suggest that the dominant frequency of the screech call (~2.7 kHz) represents an evolutionary compromise between the opposing adaptive advantages of long-distance sound propagation and enhanced detection by conspecific receivers. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DAUBENTONIA
*FORAGING behavior
*LEMUR (Genus)
*AYE-aye (Animal)
Subjects
Details
- Language :
- English
- ISSN :
- 19420889
- Volume :
- 5
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Communicative & Integrative Biology
- Publication Type :
- Academic Journal
- Accession number :
- 83287575
- Full Text :
- https://doi.org/10.4161/cib.21509