Ecology
Ecology
Observation - Experiment - Analysis
Population Ecology
Geographical Study
Cholera study
The study by John Snow regarding a cholera outbreak in London
is considered the first ecological study to solve a health issue. He
used a map of deaths from cholera to determine that the source of the
cholera was a pump on Broad Street. He had the pump handle removed in
1854 and people stopped dying there.
Other Ecology Studies
Temporal changes in Japan in the types of cancer common in Western
developed countries have been linked to the nutrition transition to the
Western diet
Current Events
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