Savanna

• with the transition from a humid to semi-humid climate, where longer dry periods develop. The further away from the equator, the longer the resulting dry period
• the term 'savanna' presumably derived from the language of Haitian Cubans describes treeless flats with tall or short grasses
• tree associations with a high amount of grasses in tropical regions are generally names savannas
• savannas cover about 15% of the Earth's landmass and a large part of humankind lives in this biome. Landscape consumption is enormous. Marginal regions in the north and south are threatened by desertification due to intensive land use