EEMB 2 Lecture Notes - Lecture 2: Biogeographic Realm
15 Mar 2018
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Document Summary
Two reasons for a species to occupy a particular area: 1. Two reasons a species is not found in a particular area: 1. It was once present but no longer is there. Weather is the short-term state of atmospheric conditions at a particular place and time. Climate is the long-term atmospheric conditions found over time; influenced by the difference in the amount of solar energy; drives global atmospheric and oceanic circulation) Tropics are hotter than temperate regions for the following reasons: Solar radiation strikes at close to right angle near equator but at acute angles near the poles. Same amount of radiant heat is concentrated over smaller area at tropics. At polar solar radiation passes through deep layer of atmosphere- reflection, absorption, and scattering. Factors that determine where you find biomes: tilt, seasonality, and the sun. At the equator it is hot and wet. Global air circulation patterns are determined by moisture and temperature levels.
