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World Biomes

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:<63 cm/yr average temp: -70°C to 12°C permafrost layer 25 cm – 91 cm deep. Reindeer lichen.

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World Biomes

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  1. World Biomes

  2. Tundra http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/tundra/tundra.html Location: Found north of the Arctic Circle

  3. Tundra Abiotic Factors • precipitation:<63 cm/yr • average temp: -70°C to 12°C • permafrost layer 25 cm – 91 cm deep

  4. Reindeer lichen Tundra Plant Adaptations • plants grow close to the ground • shallow roots to absorb the limited water resources. • trees grow less than 1 m high! cottongrass

  5. snowy owl • many visitors, migration • few predators • small ears • insulation, thick coat Tundra Animal Adaptations Arctic fox Grizzly Bear

  6. Taiga(Coniferous Forest) Location: Found only in Northern Hemisphere

  7. Taiga Abiotic 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

  8. Taiga Plant adaptations Balsam Fir • coniferous (needle-bearing) trees • long roots • needles long, thin and waxy • very few plants on forest floor Fireweed

  9. Moose Animal Adaptations of the Taiga • adapt for cold winters • burrow, hibernate, warm coat, insulation, etc. http://www.inchinapinch.com/hab_pgs/terres/coniferous/animals.htm Great Grey Owl

  10. 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

  11. abundance of deciduous (leaf bearing) trees • 4 seasons http://www.cotf.edu/ete/modules/msese/earthsysflr/taiga.html Temperate Deciduous Forests Abiotic Factors • Deep soil layers, rich in nutrients • Avg temp: 10°C • Precipitation: 76–125 cm/yr

  12. Lady Fern Temperate Deciduous forestPlant adaptations White Birch • forests grow in layers • trees adapt to varied climate by becoming dormant in winter • plants lean toward sun Geulder Rose

  13. Bald Eagle Temperate Deciduous ForestAnimal Adaptations • lose winter coat • hibernate in winter • eat from different layers of the forest Least Weasel Fat Dormouse http://www.blueplanetbiomes.org/deciduous_animal_page.htm

  14. Grasslands Location: middle latitudes and interiors of continents

  15. Grasslands - Abiotic Factors • average temp: -40°C to 21°C • precipitation 25-76 cm/yr • erratic precipitation causes droughts and fires

  16. Grassland - Plant Adaptations Blue Oak • 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. Fairy Duster

  17. Grassland - Animal Adaptations Camouflage—to avoid predation Many animals will change their diet as the season changes. Aardwolf Puma

  18. 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

  19. Tropical SavannaAbiotic Factors Rainy and dry season Average temp: 20°C - 30°C 100-150 cm/yr precipitation Fire plays a large role in this ecosystem http://www.cotf.edu/ete/modules/msese/earthsysflr/savannah.html

  20. Whistling Thorn Umbrella Thorn Acacia Tropical SavannaPlant Adaptations • grow in tufts • drought resistant • plants have thorns and sharp leaves to protect against predation. Kangaroos Paws Baobab http://www.blueplanetbiomes.org/savanna_plant_page.htm

  21. Chacma Baboon Adapt for short rainy season: • migrate as necessary • reproduce during rainy season Limited food leads to vertical feeding Tropical SavannaAnimal Adaptations Zebras

  22. Tropical Rainforest http://www.cotf.edu/ete/modules/msese/earthsysflr/ Location: found near equator No distinct seasonal changes. Earth's most complex land biome

  23. 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

  24. Bougainvillea Tropical Rainforest Plant adaptations • Plants grow in layers (canopy receives most light) • Shallow, wide roots since soil is so thin and poor in nutrients Bangul Bamboo

  25. Silvery Gibbon Tropical Rainforest Animal Adaptations Camouflage is common • Many symbiotic relationships • Live in different levels of canopy Wagler’s pit viper Slender Loris http://www.blueplanetbiomes.org/rnfrst_animal_page.htm

  26. Desert Ecosystems • Location: various locations

  27. DesertAbiotic 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 soil While there are many types of deserts, they all share one characteristic: They are the driest places on Earth!

  28. Joshua Treehttp://www.blueplanetbiomes.org/desert_plant_page.htm Barrel Cactus Desert Plant Adaptations: • Spines • Succulents • Thick, waxy cuticle • Shallow, broad roots • Ocotollio

  29. Bob Cat Desert Animal Adaptations: • get water from food • thick outer coat • burrow during day • large ears • smaller animals = less surface area Armadillo Lizard Javelina

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