Using the ancient past for establishing current threat in poorly inventoried regions Author Costion, Craig M. Australian Centre for Ecology and Evolutionary Biology, University of Adelaide, Adelaide SA 5005, Australia & Australian Tropical Herbarium, E 2 Bld. JCU Cairns Capmus PO Box 6811, Cairns QLD 4870, Australia ccostion@googlemail.com Author Liston, Jolie Department of Archaeology & Natural History, College of Asia and the Pacific, Australian National University, Australia Author Kitalong, Ann H. The Environment Inc. PO Box 1696, Koror 96940, Palau Author Iida, Akiko Department of Urban Engineering, University of Tokyo, Japan Author Lowe, Andrew J. Australian Centre for Ecology and Evolutionary Biology, University of Adelaide, Adelaide SA 5005, Australia & State Herbarium of South Australia, Department of Environment and Natural Resources, Adelaide SA 5005, Australia text Biological Conservation 2012 2012-03-31 147 1 153 162 https://doi.org/10.1016/j.biocon.2011.12.026 journal article 10.1016/j.biocon.2011.12.026 0006-3207 14767642

Table 1 Percent of the native flora assessed under IUCN Criteria for respective regions of Oceania (See Supplementary Data 1 for complete list of data sources).

Region	Native plants (vascular)	% Endemism of native flora	IUCN plant assessments	% of Native flora assessed
New Guinea	25 000+	~90%	317	1
Norfolk Island	136	32%	3	2
Samoa	550	30%	20	4
Tonga	340	4%	16	5
Solomon Islands	1941	Unknown	88	5
Vanuatu	870	~15%	46	5
Micronesia	1227	30%	97	8
Fiji	1594	54%	141	9
New Caledonia	3137	79%	346	11
Total	34 795	–	1074	3