BIO220H1 Lecture Notes - Lecture 21: Water Cycle, Carbon Cycle, Nitrogen Cycle
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BIO220H1 Full Course Notes
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Connection between nuclear weapons and ecological research food chains species. There would be perpetual poisoning: cold war with ussr set in right after 1945, us and ussr both expected to us nuclear weapons. Aspects of some selected biogeochemical cycles: radionuclide fallout would enter food chains fear of the spread of radioactive isotopes into our. The radioactive compounds could go into our crops and get absorbed, or fishing/game: us national labs (and u of t) researched radiation effects on organisms & ecosystems. Pine-oak forest irradiated by powerful gamma source (cs137) This was to study the consequences: nuclear research also gave ecology tools and a model. Radioactive tracers: allowed following fats of chemicals in natural communities. Any atomic reaction is going to release a large quantity of isotopes that are present in great concentration, follow the isotopes and follow the energy flow through the ecosystem.
