Eucalyptus trees cause "dramatic reduction" of biodiversity, with researcher at the University of Coimbra concluding that "eucalyptus leaves prevent the growth of roots of other plant species."
An international study undertaken by the university and published in the journal Global Ecology and Biogeography,* concludes that "the eucalyptus trees generate authentic 'deserts' around them, causing a dramatic reduction of the biodiversity of the territory."