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World Biomes

World Biomes. 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. Six Major Biomes. Tropical Rain Forests Grassland

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World Biomes

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  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 • 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

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

  6. 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

  7. 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

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

  9. 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

  10. 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

  11. 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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