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World Biomes.

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Presentation on theme: "World Biomes."— Presentation transcript:

1 World Biomes

2 Biomes Regions of the world with similar physical environments
Named for most conspicuous types of vegetation Climate factors Rainfall (precipitation) Temperature Altitude Latitude Boundaries are indistinct

3 Six Major Biomes Tropical Rain Forests Grassland Desert Temperate
Tropical/Subtropical Grassland Temperate Grassland Desert Temperate Temperate Deciduous Forest Temperate Rain Forest Taiga Tundra

4 Tropical Rain Forests Equatorial lowlands
Constant temperature and abundant rainfall all year long Many arboreal animals Few terrestrial animals


6 Tropical and Subtropical Grassland
Warm temperatures throughout the year Well defined dry season and rainy season Large herbivores High grasses Scattered trees and shrubs


8 Temperate Grassland Hot, humid summer and cold winter
Precipitation as winter snow and heavy spring and summer rain Short and tall grasses; trees found only near streams Wide variety of animal life Large herbivores Smaller animals build burrows


10 Deserts Identified by lack of precipitation Deserts can be cold or hot
Antarctica is a cold desert Nocturnal animal life in hot deserts Plants are well adapted to short water supply


12 Temperate Deciduous Forests
Deciduous forests of mid‑latitude regions Cold winters and hot summers Abundant rain and snowfall Wide variety of animal life


14 Temperate Rain Forests
Cold winters and hot summers Abundant rain and snowfall Conifers (redwood, firs, pines, spruce) retain their needles. Needles conserve water in dry summer and shed snow in cold winter Wide variety of animal life


16 Taiga (Boreal Forest) Coniferous (Evergreen) Forests
Found at high elevations and/or far northern latitudes Snow accounts for most of the precipitation Animals are adapted to long, cold winters


18 Tundra Areas with continuously frozen ground (permafrost)
Near polar regions Small plants limited by frozen soil and prolonged dark season Animals adapted to extreme cold; birds often migrate


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