Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Termites eavesdrop on competitors to survive

01.09.2009
The drywood termite, Cryptotermes secundus, eavesdrops on its more aggressive subterranean competitor, Coptotermes acinaciformis, to avoid contact with it, according to scientists from CSIRO Entomology and the University of New South Wales at the Australian Defence Force Academy.

Both species eat sound dry wood and can co-exist in the same tree but, while drywood termite colonies contain only about 200 individuals and are confined to one tree, colonies of Coptotermes – Australia’s dominant wood-eating termite – contain around a million individuals, including thousands of aggressive soldiers, and can forage on up to 20 trees simultaneously.

“We already knew that chewing termites generate vibrations which they use to determine wood size and quality, so it seemed possible that one species could detect another using these vibrations,” CSIRO Entomology’s Dr Theo Evans said.

“We already knew that chewing termites generate vibrations which they use to determine wood size and quality, so it seemed possible that one species could detect another using these vibrations,” CSIRO Entomology’s Dr Theo Evans said.“We found that Cryptotermes could use vibration signals to distinguish between their own and Coptotermes individuals. They would even respond to recorded signals.

“This is the first time the ability to identify a different species using only their vibration signals has been identified in termites.

“Because vibration signals move rapidly through wood and can be detected from a distance, the vulnerable species have an eavesdropping advantage as they can detect their aggressive relatives without having to come into contact with them.”

Dr Evans said the advantage to Cryptotermes in avoiding Coptotermes was made very clear in one trial where the Coptotermes tunnelled through a 20mm block of wood and killed all the Cryptotermes.

Cryptotermes and the ‘tree piping’ Coptotermes are heartwood eaters and are among the few termites groups that attack buildings. Eighty-five percent of Australian trees are infested with Coptotermes.

Coptotermes enter trees through their roots and it is their ‘tree piping’ that produces the raw material for the didgeridoo.

This research – conducted in collaboration with Professor Joseph Lai at UNSW@ADFA and with the support of the Australian Research Council – was recently published in the Proceedings of the Royal Society B.

Julie Carter | EurekAlert!
Further information:
http://www.csiro.au

More articles from Life Sciences:

nachricht Cancer diagnosis: no more needles?
25.05.2018 | Christian-Albrechts-Universität zu Kiel

nachricht Less is more? Gene switch for healthy aging found
25.05.2018 | Leibniz-Institut für Alternsforschung - Fritz-Lipmann-Institut e.V. (FLI)

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Powerful IT security for the car of the future – research alliance develops new approaches

The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.

Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

In focus: Climate adapted plants

25.05.2018 | Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

 
Latest News

In focus: Climate adapted plants

25.05.2018 | Event News

Flow probes from the 3D printer

25.05.2018 | Machine Engineering

Less is more? Gene switch for healthy aging found

25.05.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>