Echolocation behavior in big brown bats is not impaired after intense broadband noise exposures
| العنوان: | Echolocation behavior in big brown bats is not impaired after intense broadband noise exposures |
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| المؤلفون: | Andrea Megela Simmons, Kelsey N. Hom, Meike Linnenschmidt, James A. Simmons |
| المصدر: | Journal of Experimental Biology. |
| بيانات النشر: | The Company of Biologists, 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Male, 0301 basic medicine, Time Factors, Physiology, Acoustics, Human echolocation, Aquatic Science, 03 medical and health sciences, Sound exposure, 0302 clinical medicine, Eptesicus fuscus, Chiroptera, Animals, Body Size, Sound pressure, Molecular Biology, Ecology, Evolution, Behavior and Systematics, biology, Broadband noise, Environmental Exposure, Pulse (music), biology.organism_classification, Noise, 030104 developmental biology, Echolocation, Flight, Animal, Insect Science, Environmental science, Female, Animal Science and Zoology, Auditory fatigue, 030217 neurology & neurosurgery |
| الوصف: | Echolocating bats emit trains of intense ultrasonic biosonar pulses and listen to weaker echoes returning from objects in their environment. Identification and categorization of echoes are crucial for orientation and prey capture. Bats are social animals and often fly in groups in which they are exposed to their own emissions and to those from other bats, as well as to echoes from multiple surrounding objects. Sound pressure levels in these noisy conditions can exceed 110 dB, with no obvious deleterious effects on echolocation performance. Psychophysical experiments show that big brown bats (Eptesicus fuscus) do not experience temporary threshold shifts after exposure to intense broadband ultrasonic noise, but it is not known if they make fine-scale adjustments in their pulse emissions to compensate for any effects of the noise. We investigated whether big brown bats adapt the number, temporal patterning, or relative amplitude of their emitted pulses while flying through an acoustically-cluttered corridor after exposure to intense broadband noise (frequency range 10-100 kHz; sound exposure level 152 dB). Under these conditions, four bats made no significant changes in navigation errors or in pulse number, timing, and amplitude 20 min, 24 h or 48 h after noise exposure. These data suggest that big brown bats remain able to perform difficult echolocation tasks after exposure to ecologically-realistic levels of broadband noise. |
| تدمد: | 1477-9145 0022-0949 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08b8da6f9d2a2375c1167b02ffc2cbac https://doi.org/10.1242/jeb.143578 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....08b8da6f9d2a2375c1167b02ffc2cbac |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14779145 00220949 |
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