Warm Up #1 What is a “frontier worldview,” and how did it influence the way early colonists inhabited the New World? Which US president ushered in the “Golden Age of Conservation?” How are we threatening the preservation of national parks in the US?

Chapter 23 Sustaining Ecosystems

Changes in Sustainability over Time Hunting/Gathering – moving to find food and survive – 60,000 years ago Nomadic lifestyle – no conservation, extinctions of large animals

Agricultural Revolution approx. 10,000 years ago Animal domestication, plant cultivation Shifting Cultivation – shifting areas after plot dries up Increase in birth rates, energy, urbanization, irrigation, disinterest in plant/animal survival

Industrial Revolution approx 300 years ago Shift from renewable to non-renewable resources – Wood and water  fossil fuels Increase urbanization, decrease rural Increased productivity, size, pollution, information Too much?

Quick Quiz #1 Why do you think survival rates were higher during the agricultural revolution than during the hunter/gatherer period? The shift from the agricultural to the industrial revolution was incredibly significant. How was the industrial revolution more beneficial and how was it more harmful than it’s predecessor?

Coming to America… 17 th Century – New World exploration Native Americans – Agricultural/Sustainable Frontier Worldview – conquer uncharted territory – Manifest Destiny Ecosystems destroyed – paved way for industry Soon, cows, you will be mine.

Response to Manifest Destiny Theodore Roosevelt – US president / huge conservationist U.S. Forest Service created (1905) – Gifford Pinchot U.S. National Park System created (1912) – land set aside for preservation “You can has cheezburger, but you can’t has this land”

National Parks [Yosemite] 54 parks larger than 1,000 hectares [most in West] Educational services, camping, tours, etc. Threats: – Popularity – Traffic/Air Pollution – Hunting – Invasive Species National Park Tourism – good or bad?