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UNIT 4 GEOG GLOBAL ECOSYSTEMS - Coggle Diagram
UNIT 4 GEOG
GLOBAL ECOSYSTEMS
biomes
deserts
located between 15-30° north/south of equator
australia, nambia, chad
temperate forests
found in the mid-latitudes: 40-60° N/S
west europe, NE america, japan
tropical grasslands
also known as savannah, found in a band between 5-15° North or South of equator
kenya, tanzania, south africa
tundras
found at high latitudes in NORTH HEMISPHERE 55-70° N
arctic circle, sweden, iceland
tropical rainforests
found in a belt either side of equator between the tropics of cancer and capricorn
congo, brazil, indonesia
temperate grasslands
lie in the center of continents between 40-60° N/S of equator
plains of N. America, veldts of Africa
coniferous rainforests
also known as boreal/taiga this ecosystem is found between 50-60° N/S of the equator
N. america, scandinavia, russia
ecosystems
community made up of plants, physical environment and animals.
often complex interrelationships(links) with living components(biotic) and non living factors(abiotic)
biotic factors
animals(fauna)
plants(flora)
abiotic factors
sun
wind
rock, soil
differences in climate
solar insolation
at the equator the suns heat is concentrated over a small area due to overhead sun - this makes it warmer
at high latitudes curvature of earth means the suns energy is spread over a wider area - temperatures are colder
at poles, atmosphere is thicker meaning sun loses more energy
at mid latitudes amount of folar energy is higher in summer when earth is tilted towards sun
albedo effect
light surfaces reflect more light back into space than dark surfaces
icy areas = colder due to light surface
dark surfaced areas = warmer due to absorbing most light that hits them