BISC 204 Lecture Notes - Lecture 2: Photic Zone, Primary Production, Medium Ground Finch
5 Oct 2017
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Document Summary
Motivation foundation for understanding broad scale differences among ecosystems. Also serves as the template upon which species adaptation, population dynamics, species interactions, and ecosystem function operates. Also serves important role in many organisms" vision: human vision limited to 400-700nm, what we commonly call light . Wavelength, nm: temperature, solar heating declines with latitude as incident sunlight is spread across a larger area, un-even heating due to distribution of land masses in n. Hemisphere: latitudinal pattern: lower latitudes are ________, seasonal pattern: summer occurs at high latitudes when. *opposite phenomenon is la nina: abnormally cool sea surface temps. Medium ground finch beak size: pacific decadal oscillation (pdo), slow cyclic changes in dominant climate features of the north. Pacific (sea surface temps, pressure, circulation, winds: warm and cool periods, regime shift every 20-30 years, affects ocean productivity. Example: alaska vs. pacific nw salmon returns cold cold cold.
