BIOA02H3 Lecture : Ecology and the Distribution of Life (Lecture 19)

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10 Mar 2011
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The study of interactions between different species and the environment. biotic and abiotic are enclosed within an ecosystemcommunity. climate: solar energy the average atmospheric condition over a long-term varies mainly due to: angle that light hits the earth, amount of earth"s atmosphere passed through, higher latitudes receive less solar energy than the equator, patterns: at about 30 degrees north and south air descends, picking up moisture with increasing pressure (deserts) wind travels towards the equator creating, causing evaporations and condensation near the tropics. cooled air from the north and south to the equator meet at the. Intertropical convergence zone where it rises and releases moisture (heavy rains) at 60 degrees north and south, air rises again, releasing moisture, and descends at the poles (picking up moisture dry areas). as the earth spins faster at the equator than poles.

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