ES293 Midterm: ES293 MIDTERM REVIEW.docx

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10 Apr 2013
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About human behavior and the relationship between humans and the environment. Help to understand development, behavior and personality. Throughput rates of flow ex. trampled vegetation of humans using system. Homeostasis: keeping internal conditions steady as external conditions change. Feedback: process that maintains equilibrium, can be positive (continuing ex. arctic sea ice) or negative (reversing) Gap phase forests: tree ages and dies, opens up for other species. When we clear cut the rainforest it cannot adjust to this like the boreal. Carrying capacity: the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water and other necessities available in the environment. Controls of wildlife population: population control, starvation, disease, accidents, weather, hunting, predators. Threshold: once past the threshold cannot go back level of stress and tolerance of the environment, things you cannot track. Alternative stable state: one system can have more than one state, depending on what it"s been exposed to.