Navigation Links
Stealth maneuver allows nectar bats to target insect prey
Date:12/12/2013

A nectar-feeding bat that was thought to eat insects in passing has been discovered to target its moving prey with stealth precision, according to new research by scientists at Queen Mary University of London.

The researchers uncovered for the first time that the Pallas long-tongued bat use echolocation a complex physical trait that involves the production, reception and auditory processing of ultrasonic pulses for detecting unseen obstacles or tracking down prey. Most bats produce a rapid sequence of echolocation pulses to attack their prey and many insects have developed 'bat-detecting ears' in return to avoid being caught.

A genetic analysis of the bat's food waste showed that it consumes a type of moth that should be sensitive to being captured. To determine how the bats approach their insect prey, the scientists used sound recordings and infrared video to monitor the bats detecting and approaching tethered mealworms.

The results, published in the journal Functional Ecology, show that the bat's echolocation calls were high in frequency but low in intensity making it difficult for the insect to detect the imminent danger.

"When we compared the bats' echolocation calls to the moths' auditory abilities, we found that the low intensity echolocation calls were not loud enough to trigger the auditory neurons of moths with ears," explains Dr Elizabeth Clare from Queen Mary's School of Biological and Chemical Sciences.

"In effect, the echolocation of Pallas's long-tongued bats is too quiet for the moths to hear and allows them to sneak up on their target using a stealth tactic."

The discovery means that the European barbastelle bat (Barbastella barbastellus) is no longer the only bat to use stealth echolocation to sneak up on moths.

Dr Clare added: "Our analysis suggests there might be more bats than previously thought that benefit from this stealthy approach that prevents prey from escaping by listening for bats."

The Pallas long-tongues bats (Glossophaga soricina) are an important pollinator in Central and South America and belong to a group of bats that are often called 'whispering bats' because many emit relatively quiet echolocation calls to forage within dense vegetation.


'/>"/>

Contact: Neha Okhandiar
n.okhandiar@qmul.ac.uk
020-788-27927
Queen Mary, University of London
Source:Eurekalert  

Related biology news :

1. Stealth nanoparticles lower drug-resistant tumors defenses
2. Stealthy microscopy method visualizes E. coli sub-cellular structure in 3-D
3. UCSB researchers find a way to detect stealthy, hypervirulent Salmonella strains
4. New method of DNA editing allows synthetic biologists to unlock secrets of a bacterial genome
5. University of Toronto breakthrough allows fast, reliable pathogen identification
6. Genetic circuit allows both individual freedom, collective good
7. Material screening method allows more precise control over stem cells
8. AACR news: Six2 homeoprotein allows breast cancer cells to detach and metastasize
9. More accurate, sensitive DNA test allows early identification of fungus causing WNS
10. Novel storage mechanism allows command, control of memory
11. A Spanish breakthrough allows the electroporation of cell cultures for less than 1 Euro
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Stealth maneuver allows nectar bats to target insect prey
(Date:2/8/2016)... Czech Republic , February 8, 2016 /PRNewswire/ ... EU-regulated global payment platform which presents innovation for ... Biometrics Authentication feature called VoiceKey. --> ... platform which presents innovation for clients, comfort and ... called VoiceKey. --> Worldcore ...
(Date:2/3/2016)... Sweden , February 4, 2016 --> ... amounted to SEK 1,351.5 M (105.0), up 1,187% compared with fourth quarter ... profit amounted to SEK 517.6 M (loss: 30.0). Earnings per ... operating activities was SEK 537.4 M (neg: 74.7). , ... , Revenues amounted to SEK 2,900.5 M (233.6), up 1,142% compared ...
(Date:2/3/2016)... 3, 2016 ... the "Emotion Detection and Recognition Market ... Others), Software Tools (Facial Expression, Voice Recognition ... Regions - Global forecast to 2020" ... http://www.researchandmarkets.com/research/d8zjcd/emotion_detection ) has announced the addition ...
Breaking Biology News(10 mins):
(Date:2/10/2016)... ... February 10, 2016 , ... SonaCare Medical, LLC ... support program, Sonalinkā„¢ remote monitoring. The inaugural launch of this new technology occurred ... connecting Dr. Samuel Peretsman to a HIFU technical expert at SonaCare Medical headquarters. ...
(Date:2/10/2016)... ... February 09, 2016 , ... ... current winner of the Highest Overall Customer Rating Award from Circuits Assembly , ... business units across the USA, Canada, Mexico and China. , The EMS provider, ...
(Date:2/9/2016)... ... 2016 , ... Clinovo , the cloud-based eClinical software ... Capture (EDC) system ClinCaptureand its new Contract Research Organization (CRO) Partner Program ... San Mateo, California on February 10th and 11th. Watch 2-min video . ...
(Date:2/9/2016)... , Feb. 9, 2016  DNAtrix, a ... for cancer, announced that its lead product, ... Commission as an orphan medicinal product for ... form of glioma, strikes approximately 25,000 people ... http://photos.prnewswire.com/prnh/20160208/330986LOGO --> ...
Breaking Biology Technology: