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Ants build en-suite ‘TOILETS’: Insects use allocated corner of their nest as lavatories – and use the waste as manure
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Ants build en-suite ‘TOILETS’: Insects use allocated corner of their nest as lavatories – and use the waste as manure
Biologists at University of Regensburg studied common black garden ants
They fed the ants sugary food containing coloured dye to track their faeces
After two months they found distinct piles appeared in corners of the nests
Scientists say the insects may use their waste for building or as fertiliser
By RICHARD GRAY FOR MAILONLINE
In the cramped conditions of an ant nest, living alongside 100,000 of your work colleagues could get a little messy.
Black garden ants, however, appear to have a solution – they build en-suite toilets in the corners of their nests.
Biologists have found that the insects are meticulously sanitary when it comes to where they deposit their faeces – leaving them in just one or two places.
But rather than throwing out the build-up of waste like they do with other rubbish – such as the remains of food and corpses – they leave the toilets in their nests.
It suggests that the ants may use put their faeces to some use – perhaps even using it as a place to ‘grow’ food.
Dr Tomer Czackzkes, a biologist who led the study at the University of Regensburg, in Germany, said: ‘For ants, which like us live in very dense communities, sanitation is a big problem.
‘Ants normally keep a very clean nest, and usually throw out dangerous rubbish, like food remains and corpses.
‘Some insects use faeces for defense, as building materials, as manure for their crops, and as markings.
‘Perhaps these toilets are also gardens for crops, or even stores for valuable nutrients.’
The researchers, whose study is published in the journal Public Library of Science One, observed the behaviour of black garden ants, Lasius niger.
They were kept in nests built from plaster and given sugary food dyed with either red or blue food dye…..more here
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