[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: animal sound localization

as a rule of thumb, it might seem plausible that species that have evolved with fredom of movement in 3 dimensions might need better equivalence in acuity in three dimensions, so vertical would be important. Just speculative, though

Dr. Peter Lennox
Signal Processing Applications Research Group
University of Derby
Int. tel: 3155
>>> Chris Clark <cwc2@xxxxxxxxxxx> 10/31/07 2:07 PM >>>
owls are passive locators - so be sure you differentiate between these two 

... and you are asking about scientific examples of such. FYI - There are 
observations of large whales doing things - like counter-calling over long 
distances and then joining up - that seem to have an explanation in this 
domain. Some of these have been scientifically validated by playback 
experiments, but these are not able to test vertical acuity. Whales also 
find food resources through either active or passive acoustic localization 
in 3-space.


At 04:38 PM 10/30/2007, D.W. Smith wrote:
>Tyto alba, the barn owl.
>-----Original Message-----
>From: AUDITORY - Research in Auditory Perception
>[mailto:AUDITORY@xxxxxxxxxxxxxxx] On Behalf Of Brian Keith Branstetter
>Sent: Tuesday, October 30, 2007 4:25 PM
>To: AUDITORY@xxxxxxxxxxxxxxx
>Subject: animal sound localization
>Are there any examples of an animal (besides a dolphin) who can localize
>sound sources in the vertical plane with the same (or similar or better)
>acuity as the horizontal plane?
>Are there any references to such a finding?
>Thank you in advance.
>Brian Branstetter
>NRC postdoc
>US Navy marine mammal program

Dr. Christopher W. Clark, I.P. Johnson Director
Bioacoustics Research Program, Cornell Laboratory of Ornithology
Senior Scientist, Department of Neurobiology and Behavior
Cornell University
159 Sapsucker Woods Rd.
Ithaca, NY 14850