Supplemental Material for Spectral Preferences and the Role of Spatial Coherence in Simultaneous Integration in Gray Treefrogs (Hyla chrysoscelis)

2010 ◽  
Keyword(s):  
Spatial Coherence ◽  
Hyla Chrysoscelis ◽  
Simultaneous Integration ◽  
Gray Treefrogs

Spatial Coherence in the Wake of a Flat Plate

1997 ◽  
Vol 50 (11S) ◽  
pp. S36-S38
Author(s):  
Jose´ B. Da´vila ◽  
Muhammad R. Hajj ◽  
Richard W. Miksad ◽  
Edward J. Powers
Keyword(s):  
Wind Tunnel ◽  
Resonant Frequency ◽  
Flat Plate ◽  
Spatial Coherence ◽  
Streamwise Velocity ◽  
Coupled Mode ◽  
Streamwise Velocity Fluctuation ◽  
Mode Energy ◽  
Made In

Spatial coherence of the streamwise velocity fluctuation was measured in the wake of a flat plate in a wind tunnel. The measurements were made in the context of determining the role of wavenumber resonance in quadratic interactions among resonant frequency modes. Frequency domain results show that sum-interaction modes targeted by coupled mode pairs are spatially coherent. This suggests that spatial coherence measurements can be combined with bispectral measurements to determine mode energy transit and direction.

Do female frogs exploit inadvertent social information to locate breeding aggregations?

2007 ◽  
Vol 85 (9) ◽  
pp. 921-932 ◽  
Author(s):  
E.M. Swanson ◽  
S.M. Tekmen ◽  
M.A. Bee
Keyword(s):  
Social Information ◽  
Hyla Chrysoscelis ◽  
Timing Of Breeding ◽  
Sensory Cues ◽  
Bufo Americanus ◽  
Long Distance ◽  
Advertisement Calls ◽  
Inadvertent Social Information ◽  
Gray Treefrogs ◽  
Breeding Seasons

The advertisement calls of male anurans (frogs and toads) are loud and conspicuous signals, and the sound generated by breeding aggregations of males propagates over long distances. As a by-product of communication within an aggregation, the sounds of a frog chorus constitute a form of inadvertent social information that provides potential long-distance cues about the location and timing of breeding. We investigated whether female American toads ( Bufo americanus Holbrook, 1836) and Cope’s gray treefrogs ( Hyla chrysoscelis Cope, 1880) use the sounds of a chorus to locate breeding aggregations in the absence of other sensory cues. Females of both species approached speakers broadcasting recordings of a chorus made from distances of 0, 20, and 40 m, but not from distances of 80 and 160 m. Female toads also exhibited phonotaxis to a completely artificial chorus sound, but female gray treefrogs did not. We found little evidence to suggest that female American toads and Cope’s gray treefrogs differed substantially in their responses to natural chorus sounds despite potential differences in the predictability and duration of breeding seasons in these two species. Our results suggest that the inadvertent social information of a chorus could be used over short distances to locate breeding aggregations.

Longitudinal Study of Ovarian Dynamics in Female Gray Treefrogs (Hyla chrysoscelis)

Copeia ◽  
1994 ◽  
Vol 1994 (4) ◽  
pp. 1014 ◽  
Author(s):  
Mark E. Ritke ◽  
Charles A. Lessman
Keyword(s):  
Longitudinal Study ◽  
Hyla Chrysoscelis ◽  
Gray Treefrogs ◽  
Ovarian Dynamics
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