What are the main types of biomes, and how are they classified according to major vegetation type?
Tropical Evergreen Forest – Found in equaorial regions where total rainfall exceeds 250cm annually – Rich in species- richest on earth in both vegetation and animals. Tropical Deciduous Forest – Occur in hot lowlands, with a dry season – Moderate species richness for plants, high across all other categories Savanna – Found in dry tropical and subtropical regions – Characterised by it’s vast expanses of grassland and scattered trees Tropical Thorn Forest – Simalar climate to savannas – Found on equatorial sides of hot deserts – Dominant plants are spiny shrubs and small trees Hot Desserts – Except in driest regions, hot desserts have richer and more diverse vegetation than cold desserts – Succulant plants that store large quantities of water in stems are common Cold Desserts – Found in dry regions at middle to high altitudes – also at high altitudes in the rain shadows of mountain ranges – Seasonal temperatures vary greatly – Dominated by a few species of low growing shrubs – Most commo