The University of Lausanne has carried out a new kind of experiment aimed at better understanding ants’ behaviour. Barcodes glued on each individual enable researchers to monitor the insects' exact movements over weeks. (RTS/swissinfo.ch)
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Sexually fickle queens benefit society
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The discovery that interaction between genes is stronger than previously thought explains why queen ants mating with multiple partners results in the optimal balance in a colony between queens and workers. “We found two things. The first is that differentiation between queens and workers is not due only to environmental factors. Genetics is also involved,”…
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“There have been a few non-native insects in Switzerland for several years, but we’re now seeing a worrying spike in numbers,” says Stève Breitenmoser, an entomologist at the Changins-Wädenswil agroscope research station. “The main reason for the proliferation of all these insects is the rise in trade and transcontinental shipping,” says Breitenmoser. “But some species…
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