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Locatable and Nonlocatable Acoustic Signals for Barn Owls

Konishi, Masakazu (1973) Locatable and Nonlocatable Acoustic Signals for Barn Owls. American Naturalist, 107 (958). pp. 775-785. ISSN 0003-0147. https://resolver.caltech.edu/CaltechAUTHORS:20151130-135217371

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Abstract

It is generally accepted that complex songs, ornamental color patterns, and elaborate courtship displays of animals are communicatory signals. However, factors that govern their design features, such as acoustic and optic characteristics, have received little attention (Konishi 1970; Morton 1970). Marler (1955) made the first attempt to discover adaptive significance in the physical structure of animal sounds. He reasoned that there are signals adapted for easy location of their sources and sounds suitable for confusing location by predators. The physical differences between these two types of signals reflect the differences in their function. Marler used human psychophysical evidence to explain why certain acoustical properties make signals more or less suitable for location. Direct nonhuman experimental evidence for his theory is lacking.


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Additional Information:© 1973 University of Chicago Press. I thank Dr. P. Marler for critically reading the first draft of this paper, Drs. W. Heiligenberg and M. Kawai for computer programming, J. Palin for consultations on acoustical and electronic matters, and Mrs. J. Manley, Mrs. D. Ash, and Mrs. M. Hughes for enthusiastic assistance. This work was supported by a grant from the National Science Foundation.
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Issue or Number:958
Record Number:CaltechAUTHORS:20151130-135217371
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20151130-135217371
Official Citation:Locatable and Nonlocatable Acoustic Signals for Barn Owls Masakazu Konishi The American Naturalist Vol. 107, No. 958 (Nov. - Dec., 1973), pp. 775-785
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62456
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:03 Dec 2015 04:14
Last Modified:03 Oct 2019 09:19

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