GEOG 1220 Lecture Notes - Lecture 13: Baltimore Oriole, Common Starling, Radiant Energy
16 May 2016
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Document Summary
The phosphorous cycle, flow of matter in the biosphere. -every revolution that we have been a part of has come about because of increased knowledge of the carbon cycle. Domesticating fire- spread our populations controlling carbon life forms- discourage some growth, encourage others fire allowed us to change the surface of the earth- changing the carbon cycle. --used to cycle very slowly, massive amounts of biomass (forets) stored carbon over long periods the earth"s first atmosphere was probs >95% co2 then bacteria used co2 and released o2 industrial revolution- became to burn complex hydrocarbons. Extract from permanent storage release co2- reversing the process that allowed us to live new nano-technology bring back species that we got instinct. They can adjust humans are simplifying food webs- decreasing durability generalists are able to deal with a lot of different variables- european starling can exist anywhere because it can tolerate all sorts of conditions. 2. 5-3% of radiant energy is converted by producers.
