HOME >> BIOLOGY >> NEWS
Duetting birds with rhythm present a greater threat

Birds that sing duets with incredible rhythmic precision present a greater threat to other members of their species than those that whistle a sloppier tune, according to a study of Australian magpie-larks reported in the June 5th issue of Current Biology, published by Cell Press.

"When partners duet, they signal to other magpie-larks that they are working as a team to defend their territory," said Dr. Michelle Hall of the Max Planck Institute for Ornithology of the new findings. "The level of precision in their duets seems to let others know how good they aretheir ability and/or motivation to cooperate for territorial defense."

Coordinated displays are widely used among animals to defend shared resources, and may signal coalition strength so that groups can assess the relative competitive ability of rivals and avoid unnecessary fights. For example, lions roar in choruses that provide information about their groups size to intimidate rivals, as do gibbons, chimpanzees, and wolves, Hall said.

Paired Australian magpie-larks sing notes in rapid alternation to produce duets for territorial defense. One member of the pair repeatedly makes a call that sounds like peewee, and the other responds each time with wit, Hall said. Experiments have shown that the birds duets are more threatening territorial displays than songs sung solo.

However, magpie-lark pairs vary considerably in their singing skills. Highly coordinated partners create alternating notes so closely spaced that they can sound like a single bird. In contrast, others relatively poorer vocals often include gaps, overlaps, or irregular tempos. Yet the influence of those timing differences on the level of threat perceived by members of the birds listening audiences remained uncertain.

Hall and study collaborator Robert Magrath of Australian National University, Canberra, tested the function of duet precision by broadcasting coordinated and uncoordinated songs on t
'"/>

Contact: Erin Doonan
edoonan@cell.com
617-397-2802
Cell Press
4-Jun-2007


Page: 1 2

Related biology news :

1. Art and music for the birds
2. What determines the speed at which birds fly?
3. Brightly colored birds most affected by Chernobyl radiation
4. Aphids make chemical weapons to fight off killer ladybirds
5. Study investigates divorce among Galapagos seabirds
6. Land conversion and climate threaten land birds
7. Some forest birds can survive in agricultural countryside with limited habitat conservation
8. Tropical birds have slow pace of life compared to northern species, study finds
9. Mother birds engineer their offspring
10. Personality-gene makes songbirds curious
11. Migratory birds: Innocent scapegoats for the dispersal of the H5N1 virus

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/9/2019)... ... March 09, 2019 , ... ... hM4Di ligands – exciting compounds for scientists studying GPCR and DREADD signalling. Hello ... and the National Institute of Neurological Disorders and Stroke, both institutes of the ...
(Date:2/27/2019)... ... 2019 , ... Fluxion Biosciences, a leading developer of precision solutions for life ... grant for further development of its ERASE-Seq liquid biopsy technology. The Phase I grant ... Dr. Omar Mian at the Cleveland Clinic. , Liquid biopsies offer the potential to ...
(Date:2/22/2019)... ... February 20, 2019 , ... ... precision medicine, the traditional line between engineering and medical science grows ever thinner. ... smarter, the medical device industry is making medical practice easier for doctors, more ...
Breaking Biology News(10 mins):
(Date:3/19/2019)... ... March 19, 2019 , ... ... in Israel and the Middle East region, and Swiss-based CDMO Lonza announced ... platform. The partnership will enable Sheba to vastly streamline its in-house cell ...
(Date:3/14/2019)... PRINCETON, N.J. (PRWEB) , ... March 14, 2019 , ... ... will create challenges for companies to keep up. Traditional Regulatory intelligence ... times and adapting technology to get global Regulatory teams right Insights faster and cheaper. ...
(Date:3/14/2019)... ... March 14, 2019 , ... ... gold standard solution for preclinical research organizations. It is a low code, ... connected systems and facilities, innovative technology-driven automated data capture and seamless data ...
(Date:3/9/2019)... SAN DIEGO (PRWEB) , ... March 07, 2019 ... ... Agilent Technologies, is a pioneer in the development and commercialization of high performance, ... and PhysioStim, a leading European CRO with GLP-certified expertise in cardiovascular pharmacology and ...
Breaking Biology Technology:
Cached News: