5 Biomes.pdf - Biomes Global Patterns of Life Dr Marcelo...

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Biomes: Global Patterns of Life “What is the use of a house if you haven't got a tolerable planet to put it on?” —Henry David Thoreau Dr. Marcelo Ardón ES 100 Fall 2020
Agenda Terrestrial biomes Marine ecosystems Coastal zones Freshwater systems Human land use change Earth Has Room For 1 Trillion More Trees 200 gigatons of carbon
Terrestrial Biomes Biomes - areas sharing similar climate, topographic and soil conditions, and thus the same basic types of biological communities. Temperature and precipitation are among the most important determinants in biome distribution.
TEoN Figure 4.2
Biomes
Biome organization: 10 major types Desert biome Tropical climate zones Tropical rain forest biome Tropical seasonal forest biome Tropical thorn scrub and woodland Temperate climate zones Temperate rainforest Temperate forest Savanna Grassland Cold climate zones Boreal forest Tundra
Tropical Rainforests Humid regions of the world Rainfall exceeds 200cm (80 inches) Nutrient poor soils Half to 2/3 of all the species of terrestrial plants
Savannas Grasslands with sparse tree cover are savannas Low rainfall Migratory grazers follow rainfall

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