lecture 22

lecture 22 - Lecture 21 - Global Ecology Biol 2227 -...

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Lecture 21 - Global Ecology 1 1 Tools of Modern Large-scale Ecology Tropical Deforestation El Nino - Southern Oscillation (ENSO) example of a Global Process Depletion of the Ozone Layer Biol Biol 2227 - Principles of Ecology 2227 - Principles of Ecology Geographic Ecology, cont. - Ch. 22 Geographic Ecology, cont. - Ch. 22 Intro to Global Ecology - Ch 23 Intro to Global Ecology - Ch 23 2 Geographic Ecology - study of patterns of plant and animal life that can be put on a map (MacArthur, 1972) In other words, large geographical scales Modern tools of Geographical Positioning Systems (GPS), Remote Sensing, and Geographic Information Systems (GIS) 3 Geographical Positioning Systems (GPS) determines location on the earth’s surface Uses satellites as reference points Data including exact time and satellite position continuously transmitted Time for signals from several satellites to reach a receiver on earth With four satellites, highly accurate Global Positioning Systems Global Positioning Systems 4 REMOTE SENSING REMOTE SENSING Remote Sensing is the collection of information about an object without direct contact Typically by sensors Sensors gather and process From binoculars and cameras to satellite-mounted sensors that convert electromagnetic radiation to
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Global Ecology 2 5 REMOTE SENSING REMOTE SENSING Remote Sensing from satellite - SW United States red equals plant biomass from chlorophyll fluorescence 6 REMOTE SENSING REMOTE SENSING Remote Sensing - coastal waters off California Left - plant biomass Right - temperatures Upwelling Note how these coincide 7 GIS - Geographic Information Systems Computer-based system for storing, sorting, Able to handle the huge amount of data generated by generated by satellite Can compare data with stored geographic information For example, a valuable tool to examine large-scale population 8 Interactions Potentially Interactions Potentially Resulting in Global Resulting in Global Environmental Change Environmental Change Tropical Deforestation El Nino - Southern Oscillation (ENSO) example of a Global Process Ecology - Ch 23
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This note was uploaded on 11/16/2010 for the course BIO 2227 taught by Professor Sandars during the Spring '10 term at Temple.

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lecture 22 - Lecture 21 - Global Ecology Biol 2227 -...

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