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September 8 2012
Humans may be destabilising desert ecosystems across the world, according to a new study.
Analysis of the human impact on dryland ecosystems suggests it is "drastically changing" mammal communities.
The scientists believe that activities such as overgrazing livestock lie behind increasing local extinctions and a reduction in diversity.
The work will help to inform future conservation efforts, said lead author Ms Maria Veronica Chillo.
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