Week 2

Tonight: ,[object Object],[object Object],[object Object]

Ecosystems and Energy Chapter 3

Ecology ,[object Object],[object Object],Living Non-living

Earth’s Four Realms (Abiotic Factors) Soil and rock Water-liquid and frozen Gasses

Levels of Organization Individual Same species Different species Biotic and Abiotic All ecosystems on earth put together

Energy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Thermodynamics ,[object Object],[object Object],[object Object],[object Object]

Energy Transfer in Living Things ,[object Object],[object Object],photosynthesis Energy

Autotrophs vs Heterotrophs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Energy Pyramid Only 10% of energy is moved from trophic level to trophic level

Demonstration ,[object Object]

Activity ,[object Object],[object Object],[object Object]

Ecosystems and Living Organisms Chapter 4

Natural Selection ,[object Object],[object Object]

Benefits and Problems with Pesticides (from chapter 23) ,[object Object],[object Object],Pesticide application Kills most pests Resistant survive Numbers increase New population genetically resistant EVEN MORE INCREASE

Species Interactions ,[object Object],[object Object]

Three types of symbiosis ,[object Object],[object Object],[object Object]

Primary Succession e5 fig. 4.4 e4 fig. 5.4 Rocks Lichens Mosses Grasses Shrubs Trees

Niche ,[object Object],[object Object],[object Object]

Limiting Factors ,[object Object],[object Object],[object Object]

Keystone Species ,[object Object],krill Prairie dog wolf

Ecosystems and the Physical Environment Chapter 5

Basics of Biogeochemical Cycling Energy passes through ecosystems Matter recycles

Major Ecosystems of the World Chapter 6

Temperate Deciduous Forest ,[object Object],[object Object],[object Object],[object Object],[object Object]

Coniferous Forest ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Temperate Grasslands ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Savannas ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Deserts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Tundra ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Tropical Rain Forest ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Discussion ,[object Object],[object Object]

Marine Ecosystems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Aquatic Ecosystems ,[object Object],Look for dolphin safe label on tuna can:

World Population Clock ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],6,625,066,058 U.S. Census Bureau, the total population of the World, projected to 10/16/07

Population Density ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],S-shaped curve E4 fig. 8.4 Exponential growth cannot occur forever…

Factors that Affect Population Size ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Human Population ,[object Object],[object Object],In 2004 = ~6.4 billion 9.3 billion most likely in 2050 J-S curve:end of 21st century?

The Problems of Overpopulation Chapter 9

Population and Quality of Life ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Primary problems with overpopulation:

For Next Time ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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