Title |
Evolutionary origins of ultrasonic hearing and laryngeal echolocation in bats inferred from morphological analyses of the inner ear
|
---|---|
Published in |
Frontiers in Zoology, January 2013
|
DOI | 10.1186/1742-9994-10-2 |
Pubmed ID | |
Authors |
Kalina TJ Davies, Ibnu Maryanto, Stephen J Rossiter |
Abstract |
Many mammals have evolved highly adapted hearing associated with ecological specialisation. Of these, bats possess the widest frequency range of vocalisations and associated hearing sensitivities, with frequencies of above 200 kHz in some lineages that use laryngeal echolocation. High frequency hearing in bats appears to have evolved via structural modifications of the inner ear, however, studying these minute features presents considerable challenges and hitherto few such attempts have been made. To understand these adaptations more fully, as well as gain insights into the evolutionary origins of ultrasonic hearing and echolocation in bats, we undertook micro-computed tomography (μCT) scans of the cochleae of representative bat species from 16 families, encompassing their broad range of ecological diversity. To characterise cochlear gross morphology, we measured the relative basilar membrane length and number of turns, and compared these values between echolocating and non-echolocating bats, as well as other mammals. |
X Demographics
As of 1 July 2024, you may notice a temporary increase in the numbers of X profiles with Unknown location. Click here to learn more.
Geographical breakdown
Country | Count | As % |
---|---|---|
Switzerland | 1 | 14% |
Australia | 1 | 14% |
Unknown | 5 | 71% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 4 | 57% |
Scientists | 2 | 29% |
Science communicators (journalists, bloggers, editors) | 1 | 14% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 2 | 1% |
Brazil | 2 | 1% |
France | 1 | <1% |
Malaysia | 1 | <1% |
Indonesia | 1 | <1% |
Italy | 1 | <1% |
Unknown | 134 | 94% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 22 | 15% |
Student > Bachelor | 22 | 15% |
Student > Ph. D. Student | 19 | 13% |
Student > Master | 16 | 11% |
Professor > Associate Professor | 10 | 7% |
Other | 26 | 18% |
Unknown | 27 | 19% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 74 | 52% |
Environmental Science | 12 | 8% |
Biochemistry, Genetics and Molecular Biology | 8 | 6% |
Earth and Planetary Sciences | 5 | 4% |
Neuroscience | 4 | 3% |
Other | 9 | 6% |
Unknown | 30 | 21% |