Biomes
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Biomes. What is a Biome?. Biome = region characterized by distinct plant and animal populations along with similar abiotic conditions. Change by latitude Ocean biomes = marine habitats Land biomes = terrestrial habitats. Tundra. Northern most biome Treeless permafrost

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What is a Biome?

  • Biome = region characterized by distinct plant and animal populations along with similar abiotic conditions.

  • Change by latitude

  • Ocean biomes = marine habitats

  • Land biomes = terrestrial habitats


Tundra

  • Northern most biome

  • Treeless permafrost

  • Short growing seasons

  • Least rainfall of all biomes

  • Moss, lichens, caribou, arctic fox, wolves, and lemmings


Coniferous Forest

  • A.k.aTiaga or Boreal Forest

  • Populated by evergreen trees (pine, spruce, fir)

  • Deer, moose, and elk populations

  • 15-30 in. of rainfall per year

  • Avg. temperature 14°F (Winter) and 57°F (Summer)


Temperate Deciduous Forest

  • Braod-leaved trees (oak, maple, beech, hickory)

  • Leaves shed yearly before winter

  • 30-60 in. rainfall yearly

  • Avg. temperature is around 50°F

  • Animals include: deer, squirrels, beavers, and bears


Tropical Rain Forest

  • Most yearly rainfall totals (up to 260 in./year); no seasonal change

  • Produce 40% of Earth’s oxygen

  • Average temperature between 68-93 °F

  • Most biodiversity on planet located in these biomes (i.e. epiphytes)

  • ¼ of all medications come from rainforests


Grassland (Prairie)

  • Often destroyed by humans for crops

  • Soil rich in nutrients

  • Low rainfall (10-30 inches/year)

  • Antelope, prairie dogs, bison, coyotes

  • Tall grasses and very little tree cover


Savannah

  • Combo of grassland and small groups of trees

  • Located in Africa

  • Acacia trees along with giraffes, wildebeast, lions, hyenas, and gazelle


Desert

  • Low rainfall (under 15 cm a year on average)

  • Temperature average is 64 °F but may reach over 100 °F during daylight hours

  • Shrubs, cactus (adapted to low water availability)

  • Jack rabbits, snakes, and lizards


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