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BIO1130 - Ecology VS Biosphere

BIO1130 - Ecology VS Biosphere - Biomes I n Canada hic...

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Biomes In Canada Ordered by Latitude: Arctic to Equator phic Level Increases gy Decreases exponentially (less diverse) Evolution, Ecology, and Biodiversity *WHEN STUDYING TAKE THESE FACTS AND RELATE IT TO WHAT IS HAPPENING TO THE PLANET AFTER THE ORDIVICIAN PERIOD (WHEN ANIMALS FINALLY DIVERSIFY ON LAND)* Main Levels of Ecology : Organismal Ecology: - Ecology of only one organism - Very specific ecology relative to the others Population Ecology : - Looks at how one population of a species works seen in microevolution (Darwin said always look at t population Community Ecology : - Smaller scale ecology trophic webs, food webs Ecosystem Ecology : - Global scale, continental basis Abiotic Factors that affect Distribution of Species: (What determines the diversity of life on land) - Climatic: o Temperature: (Sun) Sun solely responsible for bringing energy to Earth produce ATP Less area of sunlight near equator due to DIRECT sunlight ray (temperature more stabl Therefore more diversity More area of sunlight AWAY from equator therefore, more light, BUT MORE FLUCTUATIO less temperature stability for diversity (when away from equator) Seasons explain the less diversity since primary producers shut down for that period (w o Water Availability: (Oceans – modify weather on a continental basis) Northern Hemisphere: always flow clockwise Southern Hemisphere: always flow counter-clockwise Opposite flow account for: Western Canada affected by current on the coast as it moves towards the coast; wa other side, makes Vancouver have rain when Eastern Canada – snow, even though longitudinal axis As currents approach land, carry nutrients deposits on coasts (wastes) o Hormone disruption in birds and fish due to plastic deposits Gyers: swirling zones in oceans North pacific; 6:1 ratio Plastic: Zooplankton Thermohaline Circulation : Rivers; Water flow in Depth ; Deep water Formation: Salinity & Dense near Newfoundland because heavy, sinks all the push water water has to flow, moves across the bottom of oceans (source of Thermoha circulation in Eastern Canada & South pole) Glaciers (polar ice cap) melts (pure water), dilutes saline water ; density down; we won water conveyed in deep waters (reason for extinction perhaps because this may have hap & will happen again) o Wind: Wind patterns modify conitental land masses (diversity will change) Pattern 1: Across equator = Northern and Southern Easterlies (Northeast & Southeast Trade Wind
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