New Guinea has the world’s richest island flora
NATURE(2020)
摘要
New Guinea is the world’s largest tropical island and has fascinated naturalists for centuries 1 , 2 . Home to some of the best-preserved ecosystems on the planet 3 and to intact ecological gradients—from mangroves to tropical alpine grasslands—that are unmatched in the Asia-Pacific region 4 , 5 , it is a globally recognized centre of biological and cultural diversity 6 , 7 . So far, however, there has been no attempt to critically catalogue the entire vascular plant diversity of New Guinea. Here we present the first, to our knowledge, expert-verified checklist of the vascular plants of mainland New Guinea and surrounding islands. Our publicly available checklist includes 13,634 species (68% endemic), 1,742 genera and 264 families—suggesting that New Guinea is the most floristically diverse island in the world. Expert knowledge is essential for building checklists in the digital era: reliance on online taxonomic resources alone would have inflated species counts by 22%. Species discovery shows no sign of levelling off, and we discuss steps to accelerate botanical research in the ‘Last Unknown’ 8 .
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关键词
Biodiversity,Biogeography,Conservation biology,Developing world,Tropical ecology,Science,Humanities and Social Sciences,multidisciplinary
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