New Curtin University-led research has revealed that Marri trees are critical to the survival of more than 80 species of native bee in Western Australia’s South West region, which is one of the world’s most biologically rich but threatened biodiversity hotspots. New Curtin University-led research has revealed that Marri trees are critical to the survival of more than 80 species of native bee in Western Australia’s South West region, which is one of the world’s most biologically rich but threatened biodiversity hotspots. Plants & Animals Ecology Phys.org – latest science and technology news stories