ENVIRONMENTAL STUDIES FINAL EXAM
UNIVERSITY OF OREGON COMPLETE STUDY
GUIDE PRACTICE QUESTIONS AND REVIEW
NOTES
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Updated 2026 Questions and Answers
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, What is a concept map? Concept maps: Helps depict complex relationships between concepts
Example: Increased CO2 -> Climate Change -> Altered Cycles -> Extinction
What is a casual map? Concept map that shows the effect it has on another concept
-+
Example: Invasive Species -> Native Species -> Altered Competitive hierarchies
What is a positive feedback loop? Self-Enhancing, two factors affect each other in same direction
What is a negative feedback loop? Self-Regulating/Dampening
Initial population ends up lessoned in prouding for other population
What did the Kalapuya manage the landscape for? How Kalapuya practiced sustainable seasonal burning of forests to promote the new
did this affect the ecosystem? growth of native grasses, and animals that were essential to their culture and diet (
Lamas Lily, Valerfowl, Grasshoppers, Acorns).
Regenerated the land on one side of river and settles on the other
How has the human population size changed over time? From Hunter-Gather phase to agricultural phase; very slow growth over
thousands of years
How did agriculture affect human populations? Increased food storage= greater food security, aggregation of populations
(greater density), transition to high carbohydrate diet
Higher birth rates, possibility of higher death rates too.
What is the human total fertility rate? estimate of the number of live children a woman would bear through childbearing
years -2.1 rate considered replacement rate
What three main demographic factors affect the human reproductive rate, age of first reproduction, age structure of population
total fertility rate?
What social factors affect TFR? Female economic opportunity, agriculture/urban population, social policy,
disease, female reproductive central
When countries develop, how do their birth and death Lower death and birth rates associated with higher standard of living- education
rates change? of women, availability of healthcare/contraceptives, adopting