Table 1.

Main vegetation unit attributes used in the present study to compute the biodiversity loss index

Vegetation unit	Potential area (km2)	Actual area (km2)	Time to recover2	Total Species (TS)	Endemic Species (ES)	Specific Endemic Species (SES)	Diversity	Vulnerability	Biodiversity Loss
Dense humid forest	14,745	6570	1	20131	16551	11601	–	–	–
Calcareous substrates	2145	1720	0.5	2252	1082	232	0.000075	0.6	0.000045
Ultramafic substrates	5891	1770	1	13602	11212	5742	0.00072	3.3	0.002376
Sedimentary and volcanic substrates	6709	3080	0.3	13672	10482	4812	0.00038	0.65	0.000247
Maquis	480	4267	0.5	11441	10161	5341	–	–
Middle and low altitude	473	4223	0.5	11003	9793	21*	0.00022	0.05	0.000011
High altitude	7	44	0.5	2003	1823	242*	0.0034	0.08	0.000272
Sclerophyll forest	1648	52	0.5	4241	2331	671	0.0053	15.8	0.08374
Savanna and secondary thickets	0	5311	0.01	4101	451	41	0.000027	0	0
TOTAL	–	–	–	3260	2412	1437	–	–	–

¹Jaffré et al. (2009) PSI Tahiti.

²Jaffré et al. (1997).

³Jaffré et al. (1998) Threatened plant of NC.

^*Values estimated according to botanical expertise establishing that 22% of endemism is generally observed in New Caledonian maquis.