Lesson 7 Biomes

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Lesson 7 Biomes

• What are the six major biomes found on Earth?
• What factors determine the type of biome found in
  an area?

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Do Now

• Word Splash
• rainforest desert grassland
• deciduous forest taiga /boreal forest
• tundra

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Essential Question

• What are the six major biomes found on Earth?
• What factors determine the type of biome found in
  an area?

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Vocabulary
Biome A group of land ecosystems with similar climates and organisms
Canopy large leaves of trees that form a roof like projection or covering
Understory the shrubs and plants growing beneath the main canopy of a forest.
Savanna grassland region with scattered trees, grading into either open plain or woodland, usually in subtropical or tropical regions.
Permafrost permanently frozen soil below surface
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Assignment

1. Read pages 58-67.
2. Complete the graphic organizer for each biome.

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Rain Forest Biome
Location Climate Temperature Precipitation
Vegetation Animals
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Rain Forest Biome
Location found in the equatorial regions of South America and Africa Climate Temperature little temperature variation warm Precipitation large supply of precipitation, high humidity
Vegetation dense and diverse assortment of vegetation Animals many of the animals are arboreal tree dwellers (never come down to the surface) Monkeys, snakes, insects, parrots, bats
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Desert Biome
Location Climate Temperature Precipitation
Vegetation Animals
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Desert Biomes
Location Western United States Parts of Central and South America Parts of Africa and Asia Australia Climate Temperature hot days cold nights Precipitation less than 25cm rain year little precipitation, often in heavy showers
Vegetation low diversity of plants Cacti and sparse grass Animals animals may obtain water from food, are nocturnal (active at night), Lizards, snakes, small rodents, insects
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Grassland Biome
Location Climate Temperature Precipitation
Vegetation Animals
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Grassland Biome
Location found in central North America Central Asia Southern Africa Australia Examples of savannas Serengeti Plains (Tanzania) llanos (Venezuela and Columbia) Cerrado (Brazil) pine savannas (Belize/ Honduras) Climate Temperature Temperate to subtropical areas Precipitation 25-75 cm of rain a year
Vegetation long or short grasses thick humus layer fire common and necessary to renew the biome by burning out shrubs while the grass survives Animals Herbivores Bison rabbits Gophers predators - wolves, coyotes, rattlesnakes
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Deciduous Forest Biome
Location Climate Temperature Precipitation
Vegetation Animals
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Deciduous Forest Biome
Location found in eastern North America, western Europe eastern Asia Chile Climate Temperature temp. vary greatly Cold winters Warm summers Precipitation Wet summers 50cm per year
Vegetation broad-leaved trees (which shed leaves), soil rich due to decomposition of leaf litter trees form a canopy but enough light filters through to provide energy for a lower layer of trees and shrubs Oak, maple, beech, shrubs Animals larger number of producers supports a large number of consumers Fox, rodents, owls, hawks, insect, deer
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Taiga/Boreal Forest Biome
Location Climate Temperature Precipitation
Vegetation Animals
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Taiga/Boreal Biome
Location found in broad region below the tundra in North America, Europe and Asia Climate Temperature Cold winters Summers warm Precipitation Snow Summers rainy
Vegetation coniferous trees (spruce, fir, pine etc.) little vegetation found near the ground because of low light levels and soil is acidic due to needle decomposition Animals deer, Moose Caribou Lynx Hares fox
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Tundra Biome
Location Climate Temperature Precipitation
Vegetation Animals
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Tundra Biome
Location found in the northern hemisphere above the tree line Climate Temperature Cold average winter -30 F average summer 37-54 F Precipitation little precipitation Dry permafrost
Vegetation Mosses Grasses Shrubs Small trees (willow) Animals Arctic fox Caribou polar bear migratory birds penguins
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Mountains And Ice

• not part of major biome
• mountain ranges and land covered in ice

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Assignment

• Read science explorer page 128.
• Complete science explorer page 130 and 131.

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Answer the essential questions

• What are the six major biomes found on Earth?
• What factors determine the type of biome found in
  an area?

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Ticket out the door

• Complete science explorer page 132.