High‐frequency auditory filter shapes in an Atlantic bottlenose dolphin

2000 ◽  
Vol 108 (5) ◽  
pp. 2614-2614 ◽  
Author(s):  
David W. Lemonds ◽  
Whitlow W. L. Au ◽  
Paul E. Nachtigall ◽  
Herbert L. Roitblat ◽  
Stephanie A. Vlachos
Keyword(s):  
High Frequency ◽  
Bottlenose Dolphin ◽  
Auditory Filter ◽  
Atlantic Bottlenose Dolphin

High-frequency auditory filter shape for the Atlantic bottlenose dolphin

2012 ◽  
Vol 132 (2) ◽  
pp. 1222-1228 ◽  
Author(s):  
David W. Lemonds ◽  
Whitlow W. L. Au ◽  
Stephanie A. Vlachos ◽  
Paul E. Nachtigall
Keyword(s):  
High Frequency ◽  
Bottlenose Dolphin ◽  
Auditory Filter ◽  
Atlantic Bottlenose Dolphin

scholarly journals Molecular parallelism in fast-twitch muscle proteins in echolocating mammals

2018 ◽  
Vol 4 (9) ◽  
pp. eaat9660 ◽  
Author(s):  
Jun-Hoe Lee ◽  
Kevin M. Lewis ◽  
Timothy W. Moural ◽  
Bogdan Kirilenko ◽  
Barbara Borgonovo ◽  
...  
Keyword(s):  
High Frequency ◽  
Bottlenose Dolphin ◽  
Muscle Physiology ◽  
Phenotypic Differences ◽  
Genomic Changes ◽  
Calcium Storage ◽  
Fast Twitch Muscle ◽  
Little Brown Bat ◽  
Fiber Proteins ◽  
Fast Twitch

Detecting associations between genomic changes and phenotypic differences is fundamental to understanding how phenotypes evolved. By systematically screening for parallel amino acid substitutions, we detected known as well as novel cases (Strc, Tecta, and Cabp2) of parallelism between echolocating bats and toothed whales in proteins that could contribute to high-frequency hearing adaptations. Our screen also showed that echolocating mammals exhibit an unusually high number of parallel substitutions in fast-twitch muscle fiber proteins. Both echolocating bats and toothed whales produce an extremely rapid call rate when homing in on their prey, which was shown in bats to be powered by specialized superfast muscles. We show that these genes with parallel substitutions (Casq1, Atp2a1, Myh2, and Myl1) are expressed in the superfast sound-producing muscle of bats. Furthermore, we found that the calcium storage protein calsequestrin 1 of the little brown bat and the bottlenose dolphin functionally converged in its ability to form calcium-sequestering polymers at lower calcium concentrations, which may contribute to rapid calcium transients required for superfast muscle physiology. The proteins that our genomic screen detected could be involved in the convergent evolution of vocalization in echolocating mammals by potentially contributing to both rapid Ca2+ transients and increased shortening velocities in superfast muscles.

scholarly journals Multiple Congenital Cardiac Abnormalities in an Atlantic Bottlenose Dolphin (Tursiops truncatus)

2009 ◽  
Vol 45 (3) ◽  
pp. 839-842 ◽  
Author(s):  
James W. B. Powell ◽  
Ryan T. Archibald ◽  
Cheryl A. Cross ◽  
David S. Rotstein ◽  
Valerie M. Soop ◽  
...  
Keyword(s):  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Cardiac Abnormalities ◽  
Atlantic Bottlenose Dolphin

Detection threshold of echo signals in a noise‐free environment by the Atlantic bottlenose dolphin

2000 ◽  
Vol 107 (5) ◽  
pp. 2784-2785
Author(s):  
Whitlow W. L. Au ◽  
David Lemonds ◽  
Stephanie Vlachos ◽  
Paul E. Nachtigall
Keyword(s):  
Bottlenose Dolphin ◽  
Detection Threshold ◽  
Atlantic Bottlenose Dolphin ◽  
Free Environment

Changes in signal parameters over time for an echolocating Atlantic bottlenose dolphin performing the same target discrimination task

2007 ◽  
Vol 122 (4) ◽  
pp. 2446-2450 ◽  
Author(s):  
Stuart D. Ibsen ◽  
Whitlow W. L. Au ◽  
Paul E. Nachtigall ◽  
Caroline M. DeLong ◽  
Marlee Breese
Keyword(s):  
Bottlenose Dolphin ◽  
Discrimination Task ◽  
Target Discrimination ◽  
Signal Parameters ◽  
Atlantic Bottlenose Dolphin ◽  
Over Time

The biosonar field around an Atlantic bottlenose dolphin (Tursiops truncatus)

2012 ◽  
Vol 131 (1) ◽  
pp. 569-576 ◽  
Author(s):  
Whitlow W. L. Au ◽  
Brian Branstetter ◽  
Patrick W. Moore ◽  
James J. Finneran
Keyword(s):  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Atlantic Bottlenose Dolphin
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