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16-Dec-2002

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Tree-Hole Frogs Exploit Resonance Effects, Nature
 









Excerpts: Animal mating calls that exert a comparatively high sound pressure
propagate over greater distances and generally have greater attractive power.
Here we show that calling male Bornean tree-hole frogs (Metaphrynella sundana)
actively exploit the acoustic properties of cavities in tree trunks that are
partially filled with water and which are primarily used as egg-deposition
sites. By tuning their vocalizations to the resonant frequency of the hole,
which varies with the amount of water that it contains, these frogs enhance
their chances of attracting females.
Source: Tree-Hole Frogs Exploit Resonance Effects[
http://www.nature.com/cgi-taf/DynaPage.taf?file=/nature/journal/v420/n6915/full/420475a_fs.html
], Bjorn Lardner And Maklarin Bin Lakim, Nature 420, 475 (2002)

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