Table 3.

Tropical moist forest area (10⁶ ha) 1973–2000, with alternative totals for 63 countries (65 for Sommer)

Source	Date of estimate	No. of countries	Total	Total (63 countries)
Persson	1973	61	979	980
Sommer	1975	65	935	935
Myers	1980	51	973	982
Grainger	1980	63	1,081	1,081
Myers*	1989	34	778	801
FAOCB†	1990	53	1,136	1,180
FAOE‡	1990	85	1,510	1,434
TREES§	1990	56	1,150	1,152
TREES	1997	56	1,116	1,118
FAOE‡	2000	100	1,426	1,347
GLC¶	2000	42	1,123	1,181

The 63 countries are listed in SI Table 7. Sources: refs. 11, 12, 14, 38–42, and 44–47.

*Myers's own extrapolation for ″all tropical moist forest″ was 800 million ha.

^†Based on FRA 1990 closed broadleaved forest area data.

^‡From FAO ecosystem type estimates in FRAs 1990 and 2000.

^§Updates an earlier, almost identical, estimate (43).

^¶JRC's own aggregate GLC estimate for tropical moist forest (48) is 1,094 million ha, but the number of countries is not specified.