world biomes
DESCRIPTION
World Biomes. Tundra. http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/tundra/tundra.html. Location: Found north of the Arctic Circle. Tundra Abiotic Factors precipitation:TRANSCRIPT
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World Biomes
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http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/tundra/tundra.html
Tundra
Location: Found north of the Arctic Circle
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Tundra Abiotic Factors
precipitation:<63 cm/yr average temp: -70°C to 12°C permafrost layer 25 cm – 91 cm deep
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Tundra Plant Adaptationsplants grow close to the ground
shallow roots to absorb the limited water resources.
trees grow less than 1 m high!
cottongrass
Reindeer lichen
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• many visitors, migration• few predators• small ears• insulation, thick coat
Arctic fox
snowy owl
Grizzly Bear
Tundra Animal Adaptations
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Taiga(Coniferous Forest)
Location: Found only in Northern Hemisphere
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TaigaAbiotic factors
average temp: -54°C to 21°C
precipitation:100 in/yr - mostly snow
soil poor in nutrients and very acidic
very short growing season
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Balsam Fir
• coniferous (needle-bearing) trees• long roots• needles long, thin and waxy• very few plants on forest floor
Fireweed
Taiga Plant adaptations
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Moose
adapt for cold winters burrow, hibernate, warm
coat, insulation, etc.
http://www.inchinapinch.com/hab_pgs/terres/coniferous/animals.htm Great Grey Owl
Animal Adaptations of the Taiga
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Temperate Deciduous Forests Location: found in temperate zone• Much of the human population lives in this biome
http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/tbdf/tbdf.html
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abundance of deciduous (leaf bearing) trees
4 seasons
Deep soil layers, rich in nutrients
Avg temp: 10°C Precipitation: 76–125 cm/yr
Temperate Deciduous Forests
Abiotic Factors
http://www.cotf.edu/ete/modules/msese/earthsysflr/taiga.html
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White Birch
Lady Fern
Geulder Rose
Temperate Deciduous forest Plant adaptations
forests grow in layers
trees adapt to varied climate by becoming dormant in winter
plants lean toward sun
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lose winter coat
hibernate in winter
eat from different layers of the forest
Bald Eagle
Fat Dormouse
Least Weasel
http://www.blueplanetbiomes.org/deciduous_animal_page.htm
Temperate Deciduous Forest
Animal Adaptations
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Grasslands
Location: middle latitudes and interiors of continents
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Grasslands - Abiotic Factors average temp: -40°C
to 21°C
precipitation 25-76 cm/yr
erratic precipitation causes droughts and fires
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Grassland - Plant Adaptations
mostly low-lying shrubs and small trees.
many plants have leathery leaves to resist water loss and/or oils in leaves to help them resist fire.
Blue Oak
Fairy Duster
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Grassland - Animal Adaptations
Camouflage—to avoid predation
Many animals will change their diet as the season changes.
Puma
Aardwolf
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Savannas (Tropical Grasslands) Contain the greatest number of grazing animals on Earth.
Location: Found in the tropics…near equator Amount of precipitation supports tall grasses but only occasional
trees.The word savanna stems from an Amerind term for plains http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/savanna/savanna.html
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Tropical SavannaAbiotic Factors
Rainy and dry season Average temp: 20°C - 30°C100-150 cm/yr precipitation
Fire plays a large role in this ecosystem
http://www.cotf.edu/ete/modules/msese/earthsysflr/savannah.html
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Whistling Thorn
Umbrella Thorn AcaciaTropical Savanna
Plant Adaptations
grow in tufts drought resistant plants have thorns and sharp
leaves to protect against predation.
http://www.blueplanetbiomes.org/savanna_plant_page.htm
Kangaroos Paws
Baobab
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Adapt for short rainy season:– migrate as necessary– reproduce during rainy
season
Limited food leads to vertical feeding
Zebras
Chacma Baboon
Tropical SavannaAnimal Adaptations
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http://www.cotf.edu/ete/modules/msese/earthsysflr/
Tropical Rainforest
Location: found near equator
No distinct seasonal changes.
Earth's most complex land biome
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Tropical Rainforest Abiotic factors high biodiversity and
biomass average temp: 34°C - 20°C about 125-660 cm/yr of
rainfall
http://www.cotf.edu/ete/modules/msese/earthsysfl
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Bougainvillea
Plants grow in layers (canopy receives most light)
Shallow, wide roots since soil is so thin and poor in nutrients
Tropical Rainforest
Plant adaptations
Bangul Bamboo
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Many symbiotic relationships
Live in different levels of canopy
Wagler’s pit viper
Silvery Gibbon
Slender Lorishttp://www.blueplanetbiomes.org/rnfrst_animal_page.htm
Tropical Rainforest
Animal Adaptations
Camouflage is common
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Desert Ecosystems
Location: various locations
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Desert Abiotic factors
average temp: -2°C to 49°C
<25 cm/yr of rain little to no topsoil due
to high winds. minerals not deep in
soilWhile there are many
types of deserts, they all share one characteristic: They are the driest places on Earth!
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Joshua Tree http://www.blueplanetbiomes.org/desert_plant_page.htm
Desert Plant Adaptations:
Spines Succulents Thick, waxy cuticle Shallow, broad
roots
Barrel Cactus
Ocotollio
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Desert Animal Adaptations:
get water from food thick outer coat burrow during day large ears smaller animals = less
surface areaJavelina
Bob Cat
Armadillo Lizard