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New Guinea has most diverse plant life on earth

New Guinea has the most diverse plant life of any island on earth, according to new research.

A team of international researchers has produced the first verified checklist of the vascular plants on mainland New Guinea and surrounding islands and published their findings in the journal Nature.

Over 13,600 species were documented on New Guinea, the world's largest tropical island which is politically split in half - Papua New Guinea in the east, and Indonesian-ruled territory in the west.

That gives New Guinea the highest plant diversity of any island on earth, surpassing Madagascar, (11,832 species), Borneo (11,165 species), and Sumatra (8,391 species).

New Guinea's flora is also highly unique, with the new study finding more than two-thirds of its plants are endemic, meaning they are only found on this island.

Researchers involved in this study argue that expert knowledge is essential for building checklists in the digital era, as online databases overestimate the species counts by 22 per cent.

Source: https://www.rnz.co.nz/international/pacific-news/422889/new-guinea-has-most-diverse-plant-life-on-earth

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