| Feature | Tropical Rainforest | Tropical Dry Forest |
|---|---|---|
| Annual Rainfall | >2,000 mm (often 2,500–4,000+) | 1,000–1,500 mm (highly seasonal) |
| Dry Season | None or <1–2 months | 4–6+ months (distinct) |
| Temperature | Stable 25–28°C year-round | 25–30°C; wider diurnal range |
| Canopy | Closed, multi-layered, 30–45 m | Open, 15–25 m; deciduous in dry season |
| Biodiversity | Highest on Earth (50%+ species) | High but lower; many endemics |
| Soil | Oxisols/Ultisols; nutrient-poor, rapid cycling | Alfisols/Vertisols; more fertile, seasonal nutrients |
| Key Regions | Amazon, Congo, SE Asia (Borneo, New Guinea) | Caatinga (Brazil), Chiquitano (Bolivia), N. Australia, Madagascar, Pacific coast Mesoamerica |
| Threats | Deforestation (cattle, soy, palm oil) | Conversion to agriculture/pasture; fire |
Dry forests are more endangered proportionally—easier to clear, better soils, less protected. Both are carbon reservoirs, climate regulators, and indigenous homelands.