The wonderful things of Earth.

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Presentation transcript:

The wonderful things of Earth. Earth Biomes The wonderful things of Earth.

An Ecosystem is shaped by: Ecosystems An Ecosystem is shaped by: Food webs Water, carbon and nitrogen cycles Weather

What is a Biome? A Biome is a group of Ecosystems with similar climates and organisms Climate is driven by the amount of sunlight and rainfall

What is a Biome? The earth is round, so light from the sun hits the earth unevenly Less light at poles More light at equator More light = more energy

Climate Climate has 2 main parts: Temperature Rainfall Determined by Latitude and Altitude Rainfall The climate determines what type of organisms can live in an area

temperature Map

Rainfall map

Plant life Producers form the base of any ecosystem Producers have adapted to live almost everywhere on the earth The types of plants help determine the Biome

Deserts Characteristics: Less than 25 cm of rain per year Extreme temperature change each day 40○C during the day, 5○C at night

Grasslands Characteristics: 25-75cm of rain per year Grass is primary plant 25-75cm of rain per year

Deciduous Forest Characteristics: At least 50cm of rain per year 4 seasons Trees lose leaves for winter

Rainforests Tropical (warm) or Temperate (cool) Characteristics: Highest number of different species At least 300cm of rain per year

Boreal Forest (taiga) Characteristics: 20-75cm of rain per year Cold temperatures Coniferous trees

Tundra Characteristics: Less than 25cm of rain per year Very cold Soil is frozen (permafrost) most of the year

Freshwater Characteristics: Ponds, lakes, streams and rivers Low salt concentration in water Species adapted to water life

Marine Characteristics: High salt concentrations Oceans, bays etc 5 areas: Estuaries, Intertidal, Neritic, Surface, Deep