Fig. 3. A cross section of production and development indicators averaged across tropical forest countries as listed in Table 2 and according to dominance by Precambrian (PC) and Phanerozoic (PH) terranes. In the case of Brazil, state-municipio values were assigned based on overlap with PC or PH geological province. Data sources: FAO 2004, INEGI 2004, USGS 2004, World Bank 2005. Error bars represent standard errors. Filled bars in Forest Area and GNI averages for PH countries depict averages with Pacific and Caribbean islands removed.