Bat Bioacoustics by M. Brock Fenton, Alan D Grinnell, Arthur N. Popper, Richard

By M. Brock Fenton, Alan D Grinnell, Arthur N. Popper, Richard R. Fay (eds.)

Arguably biosonar is likely one of the ‘eye-opening’ discoveries approximately animal habit and the auditory platforms of echolocators are entrance and middle during this tale. Echolocation by way of bats has confirmed to be a digital gold mine for colleagues learning neurobiology, whereas offering many wealthy examples of its impression on different components of bats’ lives. during this quantity we in short overview the heritage of the subject (reminding readers of the 1995 listening to by way of Bats). We use a bankruptcy on new findings within the phylogeny of bats to place the data that follows in an evolutionary context. This contains an exam of the potential roles of Prestin and FoxP2 genes and numerous anatomical beneficial properties affecting bat vocalizations. We introduce fresh paintings at the function of noseleafs, ears, and different facial parts at the focusing of sound and selection of echoes. ​

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Ears adapted for the detection of motion, or how echolocating bats have exploited the capacities of the mammalian auditory system. The Journal of the Acoustical Society of America, 68, 741–753. -U. (1971). On- and off- responses in the inferior colliculus of the greater horseshoe bats to pure tones. Zeitschrift Vergleichende Physiologie, 74, 57–63. Novick, A. (1977). Acoustic orientation. A. ), Biology of bats. Vol. 3 (pp. 73–287). New York: Academic Press. Novick, A. (1958a). Orientation in Paleotropical bats.

2001) demonstrated how individual bats changed the details of their calls according to the task at hand, namely, searching for, tracking, or closing with a flying insect. Eventually it was obvious that while terms such as CF, FM, or some combinations (FM-CF-FM) were useful when describing calls and their components, they fell short of describing the echolocation behavior of bats (Fenton 1999). 4) illustrates the diversity that can be involved. 4 do not show variations in the use of harmonics by echolocating bats.

Overall, many of the structural modifications in cochleae of echolocating bats contribute to increased stiffness of the cochlear partition at the basal end, maximizing the transfer of energy from the OHCs to the basilar membrane (Russell 2014). Further apparent specializations for processing echolocation signals are seen in the ascending auditory pathway. For example, compared with other mammals, the brain stems of bats show a greater degree of hypertrophy in several structures, including the superior olivary complex (Grothe and Park 2000), anteroventral cochlear nucleus, and inferior colliculus (Pollak 1992; Covey and Caseday 1995).

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