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Invasive insects changing Antarctic landscape

RATE THIS! +6
Posted in Science on 19th Dec, 2012 02:40 AM by AlexMuller

A species of midge was able to release large volumes of nutrients into the soil, changing the way native species had lived and evolved, a UK team found. They added the species was well-suited to thrive in the extreme conditions. Details of the research were presented at the British Ecological Society's annual meeting in Birmingham.

 

A team from the British Antarctic Survey said the invasive species, the non-biting midge Eretmoptera murphyi, effectively removed one of the brakes on the way that the native community had developed.

 

"In terms of function, their job is litter turnover - they help things decay in the soil - and the population density of this thing in the area where it has been introduced is responsible for more litter turnover than the community that was already there," explained co-presenter of the research Peter Convey, of the British Antarctic Survey.

 

"So basically it is bringing a function into an ecosystem that is not very active already. In principle, it can be a fundamental change in the way that ecosystem works."



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Comments

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Posted: 2013-11-23
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