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Understanding Tundra Ecosystems: Climate, Vegetation, and Biodiversity

The tundra is characterized by its extremely cold climate, low biotic diversity, and simple vegetation structure. With a short growing season lasting just 6 to 10 weeks, it experiences long, dark winters for 6 to 10 months, where average monthly temperatures remain below freezing. Precipitation is minimal, under five inches annually, but insulation from snowfall supports life. Energy and nutrients primarily come from dead organic material, leading to significant population oscillations in tundra species. Explore the unique adaptations and challenges of this fragile ecosystem.

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Understanding Tundra Ecosystems: Climate, Vegetation, and Biodiversity

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Presentation Transcript

  1. Tundra Facts

  2. Tundra • Extremely cold climate • Low biotic diversity • Simple vegetation structure • Limitation of drainage • Short season of growth and reproduction • Energy and nutrients in the form of dead organic material • Large population oscillations

  3. Tundra • extremely short growing season (6 to 10 weeks) • long, cold, dark winters (6 to 10 months with mean monthly temperatures below 32° F or 0° C.) • low precipitation (less than five inches/year) coupled with strong, drying winds. Snowfall is actually advantageous to plant and animal life as it provides an insulating layer on the ground surface.

  4. Tundra • The average temperature of the warmest month is between 50 F (10 C) and 32 F (0 C) • Sometimes as few as 55 days per year have a mean temperature higher than 32 F (0 C) • The average annual temperature is only 10 to 20F (-12C to -6C)

  5. Inches Of Rainfall Per Years • Desert=10 in. • Grassland=30 in. • Rainforest=90 in. • Taiga=30 in. • Temperate Deciduous Forest=60 in. • Tundra=10 in.

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