Lec 12 Bild 3 2011

Lec 12 Bild 3 2011 - Lecture 12: the physical environment...

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Unformatted text preview: Lecture 12: the physical environment and the biosphere I. Overview of ecological concepts II. Seasonality and latitudinal variation in climate III. Air circulation patterns and ocean currents IV. Regional effects on climate V. Biomes VI. Mediterranean-type ecosystems Definition: the scientific study of the interactions that determine the distribution and abundance of organisms (1) Quantifying the factors that influence the distribution and abundance of organisms (2) Quantifying the factors that influence the composition of local species assemblages. (3) Quantifying the flow and recycling of nutrients and energy within and among ecosystems What is ecology? Quantifying the factors that influence the broad distribution of an organism Quantifying the factors that influence the composition of local species assemblages. Quantifying the flow and recycling of nutrients and energy within and among ecosystems Lecture 12: the physical environment and the biosphere I. Overview of ecological concepts II. Seasonality and latitudinal variation in climate III. Air circulation patterns and ocean currents IV. Regional effects on climate V. Biomes VI. Mediterranean-type ecosystems Climate Sun drives everything about the climate. I. Seasonality and latitudinal variation in climate Latitudinal variation in sunlight intensity: Temperature differences result from how the angle of the sun relative to the Earth’s surface changes with latitude. 90 ° N (North Pole) 60 ° N 30 ° N 23.5 ° N (Tropic of Cancer 60 ° S 90 ° S (South Pole) ° (Equator) 23.5 ° S (Tropic of Capricorn) 30 ° S Low angle of incoming sunlight Atmosphere Sun overhead at equinoxes...
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This note was uploaded on 01/16/2012 for the course BILD 3 taught by Professor Wills during the Fall '07 term at UCSD.

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Lec 12 Bild 3 2011 - Lecture 12: the physical environment...

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