Ess 120 1st Edition Lecture 9 Outline of Last Lecture I. Easter IslandII. Rock AgricultureIII. SocietyA. ChiefsB. Clans IV. Vanished ResourcesA. ConsequencesB. Deforestation Outline of Current Lecture I. DiamondA. Road MapII. MalthusIII. PitcairnIV. HendersonA. MPH GeographicallyV. MangrevaA. Stone toolsB. Soil ErosionCurrent LectureHenderson, Pitcairn, and Mangareva Islands- Diamond, p. 120-135o **Diamond’s Road map1. Fail to anticipate a problemThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.2. When the problem arrives, they fail to perceive it3. Once they notice, fail to try to solve it4. They try to solve it but may not succeed.Inexhaustible natural resources- Fertile lands- Good trade- Population multipliedMalthus- Pop increase is geometric- Food prod increases are arithmeticPitcairn- uninhabited, mutineers found ruins, petroglyphs, templesHenderson, east of Pitcairn- Most isolated islandin the world- BOTH islands thow the effects of environmental catastrophe- Trading partner- Magareva- survived by a much lower standard of living*Geographically in order E -> W : MPH. (Magareva, Pitcairn, HendersonMangareva:Large island- 15 mi diameter• Lots of fish, oysters, shellfish• Higher outlying islands had freshwater• Settlements on flat coasts, yams, sweet potatoes, breadfruit, and bananas• Several thousand people lived thereStone for tools• No good raw stone• They found the stone on Pitcairn island 300 miles SE of mangarevaHigh soils erosion rates• Lost productivity of high lands• Cannibalism• Wars/civil wars• In 1797 no canoes, just raftsPicairn:2.5 miles, steep, extinct volcanic island• volcanic glass• intermittent streams: not a lot of rainfall• dense fine-grained basalt for tools• tall trees for hulls for outrigger canoes• no reefs so poor fishingo no oysters, few shellfisho small populationhigh erosion5/9 birds species extinct• started gardening loss of shellsHenderson:Largest, 14 sq miles, remote, 100 miles W of Mangareva most marginal for human existence• No good rocks for tools• A coral reef• No freshwater,• Soil found between pocketsAdvantages of Henderson Island• Reef and shallow waters• Permanent home for some peopleFound more than 14,000 fish bones, 42,000 bird bones, and thousands of land birds in cubic area.Makatea landscape, limestone and coral fissures that will chew up flesh, boots, etc.• Trees less than 50 ft high- no hulls• Stunted forests• Beaches on north end, narrow; south end cliffs• rock shelters on the cliffs barefoot