Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

"We are the champions" - the new birdie song

11.02.2004

It’s not just football supporters who join together in a rousing chorus to celebrate a victory. Winning a fight also appears to put the tropical boubou, an African bird, in the mood for a song.

Research published in BMC Ecology describes a rare example of a context-specific birdsong and identifies the tropical boubou as the first bird species known to sing a ’victory duet’.

The birds probably sing to deter other birds from intruding into their territory. According to the authors, "We were able to hear the male note of the victory display across two territories, further than notes of other duets. Also, it was typically sung from higher perches than other duets, making it more conspicuous."

Tropical boubous are monogamous birds. The male and female of a pair often sing duets, with each bird having a distinct part.

German researchers Ulmar Grafe and Johannes Bitz visited the Comoe National Park in Ivory Coast to find out how tropical boubous respond to their territory being invaded. The researchers broadcast recordings of four duets, which are often sung during contests over territory, to 18 different pairs of birds.

Sixteen of the tropical boubou pairs stood their ground, and 11 of these pairs sung the ’victory duet’ within 30 minutes of the researchers turning off their tape machine. The birds that flew off, presumably after ’losing’; the battle, didn’t sing a note for at least 30 minutes.

The ’victory duet’ was the first and only song that the birds sung within 30 minutes of the antagonistic encounter. The tropical boubous waited for at least 150 seconds of silence, to check that the invaders had gone, before they announced they were the winners.

"Analysis revealed that the presumptive victory display was sung significantly more often after than before or during playback of recordings," write the researchers.

Like other duets sung by male and female tropical boubous, the ’victory duet’ contained "highly synchronised tonal notes that were often repeated." However this song was longer than the other 12 songs in the tropical boubous’ repertoire, with the same motif being sung around 40 times on average.

Gemma Bradley | BioMed Central
Further information:
http://www.biomedcentral.com/content/pdf/1472-6785-4-1.pdf
http://www.biomedcentral.com/bmcecol/)

More articles from Ecology, The Environment and Conservation:

nachricht Litter is present throughout the world’s oceans: 1,220 species affected
27.03.2017 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung

nachricht International network connects experimental research in European waters
21.03.2017 | Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB)

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Unique genome architectures after fertilisation in single-cell embryos

30.03.2017 | Life Sciences

Pinball at the atomic level

30.03.2017 | Physics and Astronomy

Organic-inorganic heterostructures with programmable electronic properties

30.03.2017 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>