Bullock, Theodore H.

4 publications

Bullock, Theodore H.; Domning, Daryl Paul; Best, Robin Christopher (detail)
1977Hearing in a manatee (Sirenia: Trichechus inunguis). [Abstr.]
Proc. 2nd Conf. Biol. Marine Mamms. (San Diego, Calif.): 72. Dec. 1977.
—Abstr. of Bullock et al. (1980).
Bullock, Theodore H.; Domning, Daryl Paul; Best, Robin Christopher (detail)
1980Evoked brain potentials demonstrate hearing in a manatee (Trichechus inunguis).
Jour. Mamm. 61(1): 130-133. 1 fig. Feb. 20, 1980.
—Portuguese transl.: Bullock et al. (1981). Abstr.: Bullock et al. (1977). Reports that the most effective frequency was circa 3 kHz. Compares the hearing range with the range of vocalizations in other sirs. The most sensitive region of the head was found to be over the zygomatic process of the squamosal.
Bullock, Theodore H.; Domning, Daryl Paul; Best, Robin Christopher (detail)
1981Potências cerebrais através do estímulo acústico (AEP) mostram a audição no peixe-boi (Sirenia: Trichechus inunguis).
Acta Amazonica 11(3): 423-427. 1 fig. Sept. 1981.
—Portuguese transl. of Bullock et al. (1980).
Bullock, Theodore H.; O'Shea, Thomas J.; McClune, Michael C. (detail)
1982Auditory evoked potentials in the West Indian manatee (Sirenia: Trichechus manatus).
Jour. Comp. Physiol. 148A(4): 547-554. 3 figs.
—Some ultrasonic sensitivity was detected (to 35-40 kHz); the most effective frequencies and power spectra were both found to be lower in T. manatus than in T. inunguis; the greatest sensitivity was found in the region of the external auditory meatus.