Echolocation - Physiology
Research News and Information

Sunday, November 22, 2009

Echo amplitude selectivity of the bat is better for expected than for unexpected echo duration.

24 Aug 2009 A previous study shows that most inferior collicular neurons of the bat discharge maximally to a best duration and these duration-selective neurons have better echo frequency selectivity when the duration of both echo and pulse matches the best ... Read more...

Determinants of echolocation call frequency variation in the Formosan lesser horseshoe bat (Rhinolophus monoceros).

17 Aug 2009 The origin and maintenance of intraspecific variation in vocal signals is important for population divergence and speciation. Where vocalizations are transmitted by vertical cultural inheritance, similarity will reflect co-ancestry, and thus vocal ... Read more...

Tiger moth jams bat sonar.

15 Jul 2009 In response to sonar-guided attacking bats, some tiger moths make ultrasonic clicks of their own. The lepidopteran sounds have previously been shown to alert bats to some moths' toxic chemistry and also to startle bats unaccustomed to sonic prey. ... Read more...

Latest indexed articles for 'Echolocation - Physiology'

These are the very latest articles for this heading:

• Echo amplitude selectivity of the bat is better for expected than for unexpected echo duration. 24 Aug 2009
• Determinants of echolocation call frequency variation in the Formosan lesser horseshoe bat (Rhinolophus monoceros). 17 Aug 2009
• Tiger moth jams bat sonar. 15 Jul 2009
• Acoustic effects accurately predict an extreme case of biological morphology. 12 Jul 2009
• Development of auditory thalamocortical connections in the pallid bat, Antrozous pallidus. 8 Jul 2009
• What a plant sounds like: the statistics of vegetation echoes as received by echolocating bats. Jul 2009
• Acoustic basis for fish prey discrimination by echolocating dolphins and porpoises. 29 Jun 2009
• GABA shapes selectivity for the rate and direction of frequency-modulated sweeps in the auditory cortex. 22 Jun 2009
• Gleaning bat echolocation calls do not elicit antipredator behaviour in the Pacific field cricket, Teleogryllus oceanicus (Orthoptera: Gryllidae). 14 Jun 2009
• Properties of ultrasonic acoustic resonances for exploitation in comb construction by social hornets and honeybees. 7 Jun 2009
• The voice of bats: how greater mouse-eared bats recognize individuals based on their echolocation calls. 3 Jun 2009
• Corticocortical interactions between and within three cortical auditory areas specialized for time-domain signal processing. Jun 2009
• Hear, hear: the convergent evolution of echolocation in bats? 27 May 2009
• Experimental evidence for group hunting via eavesdropping in echolocating bats. 4 May 2009
• Adaptive echolocation behavior in bats for the analysis of auditory scenes. 29 Apr 2009
• [Ultrasound reception and production in moths: countertactics toward echolocating bats and evolution of acoustic communication] 29 Apr 2009
• Distribution and development of the highly specialized lipids in the sound reception systems of dolphins. 15 Apr 2009
• A novel view of hearing in reverberation. 14 Apr 2009
• Forward-masking based gain control in odontocete biosonar: an evoked-potential study. 30 Mar 2009
• Biosonar adjustments to target range of echolocating bottlenose dolphins (Tursiops sp.) in the wild. 30 Mar 2009

See a longer list of these articles.

Technical information about 'Echolocation'

Definition: An auditory orientation mechanism involving the emission of high frequency sounds which are reflected back to the emitter (animal).

Descriptor UI: D004455

Alternative terms: Echolocation; Echolocations;

Allowable Qualifiers: classification; drug effects; physiology; radiation effects; ethics;

Tree Number: F01.145.113.055.400;

History Note: 91(72); was see under ORIENTATION 1972-90

Technical Notes: animal only; for human consider SOUND LOCALIZATION