UCSB EEMB 171 - Lecture 1-3 2016 (2) (53 pages)

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Lecture 1-3 2016 (2)



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Lecture 1-3 2016 (2)

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Pages:
53
School:
University of California, Santa Barbara
Course:
Eemb 171 - ECOSYSTEM PROCESSES

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EEMB ES 171 Ecosystem Processes Professor Josh Schimel E mail Schimel lifesci ucsb edu Office Noble Hall 1108 Teaching Assistants Shannon Hagerty Eric Slessarev E mail Shannon hagerty lifesci ucsb edu Eric slessarev lifesci ucsb edu Textbook Principles of Terrestrial Ecosystem Ecology Chapin Matson Vitousek 2012 Course Expectations Listen ask questions gain an ecosystems perspective Read assigned material before sections Section write ups will be typed grammatically sound etc Course assignments will be handed in on time beginning of class period or section no exceptions what is this Grand Themes in Ecosystem Science Grand Themes in Ecosystem Science what is this source Grand Themes in Ecosystem Science Grand Themes in Ecosystem Science source http www amazonrainforestnews com 2011 08 new petition to save amazon as newlaws html what causes the squiggle Grand Themes in Ecosystem Science carbon C storage is determined by the Grand Themes in net balance between C fixation release Ecosystem Science CO2 CHNO CO2 image modified from http www nasa gov centers goddard earthandsun frozen north html photosynthesis occurs in oceans too Grand Themes in Ecosystem Science source http dsc discovery com news 2007 12 26 ocean algae zoom html 900 g m2 y 57 g m y 2 Which terrestrial ecosystem is this most like 300 g m2 y 5 g m2 y 32 g m2 y the global C cycle majority of organic C is stored in the ocean land Grand Themes in Ecosystem Science what are the biophysical feedbacks between ecosystems and the climate system Ecosystem processes in a changing world Two perspectives 1 BIOGEOCHEMISTRY Different scales energy transfer through ecosystems 2 HUMAN ACTIVITIES How do people alter ecosystem processes How does this affect the climate system Physical sciences Chemical sciences Biological sciences Ecosystem Science concepts Ecosystem Ecology Ecosystem Physiology vs Population Community Ecology Ecosystem Anatomy Ecosystem Science concepts Ecosystem Ecology whole ecosystems Community Ecology communities of interacting species Population Ecology dynamics of individual species populations Ecosystem Science concepts Ecosystem Ecology whole ecosystems Physiological Ecology Functioning of individual organisms Biochemistry Pathways and control of biological reactions Fundamental Principles of Ecosystem Ecology Law of conservation of mass matter Elements cycle 1st Law of Thermodynamics Conservation of energy 2nd Law of Thermodynamics Entropy increases Energy spirals It may be convenient to designate control watersheds in experimental studies as mature or climax in terms of a vegetational cycle but there should be no confusion between mature or climax in a phytosociological sense steady state in the ecosystem sense Vitousek and Reiners 1975 What does this mean Climax forest Steady state flows in flows out Ecosystem Science concepts Core issues in ecosystem ecology How do ecosystems function Pathways kinetics Flow paths of energy and elements What are the rates of material energy



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