Chapter 37: Ecological Zones of Théxar
"Life does not tolerate emptiness. Every crevice between rocks, every degree of latitude, every meter of altitude — occupied. Théxar is a planet without empty niches." — Guild of Natural History, +3 400 yr.
Related sections: → see [Ch.11, "Ecology"], → see [Ch.21, "Ecosystems"], → see [Ch.13, "Continents"]
37.1 Climate Belts
| Belt | Latitudes | T average | Biome |
|---|---|---|---|
| Equatorial | 0°–8° | 60.3°X | Jungles, hylea |
| Subequatorial | 8°–20° | 57.0°X | Savannas |
| Tropical | 20°–30° | 54.9°X | Deserts, steppes |
| Subtropical | 30°–45° | 52.7°X | Forests, maquis |
| Temperate | 45°–60° | 49.4°X | Deciduous |
| Subpolar | 60°–75° | 45.1°X | Taiga, tundra |
| Polar | 75°–90° | 35.3°X | Ice deserts |
37.2 Altitudinal Zonation
| Belt | Height (sha) | T | Biome | Continent |
|---|---|---|---|---|
| Lowland | 0–610 | 51.6°X | Meadows, woodlands | All |
| Foothill | 610–1 829 | 49.4°X | Forests | All |
| Montane | 1 829–3 659 | 46.2°X | Conifers, shrubs | Kharak, Rhuval |
| Subalpine | 3 659–5 488 | 42.9°X | Meadows, lichens | Khar-Tor |
| Alpine | 5 488–7 317 | 38.5°X | Rocks, lichens | Khar-Tor |
| Nival | >7 317 | 34.2°X | Ice, snow | Khar-Tor |