Ecology: We are all connected and interdependent Toxic Garbage Island movie W 4/21 at 5pm in JES A121A Two ways to think about the world: atoms molecules organelles cells tissues organs systems organisms ecosystem Reductionism holism planet Food Web (This one is from Antarctica) Fig 54.12 Ecological Interconnections Fig 55.4 Interconnections Fig Predator-Prey interactions Hare populations are limited by predation and food availability. Carrying Capacity exponential growth stationary phase Fig 53.12 Fig 53.3 Population size includes births, deaths, and migration Human Population Growth Fig as of 4/15 at pm: 6,815,080,019 What limits Carrying Capacity? Fig 53.12 Space Availability of resources. Availability of resources and removal of waste limits carrying capacity Fig 55.4 Fig Predator-Prey interactions fewer consumers than producers Fig 55.11 Energy is lost in each consumer Fig Energy is lost as it is consumed: where does it go? Fig 55.9 only a small percent of energy from plants enters the food chain Fig 55.9 only a small percent of energy is stored in organism Fig Energy is lost in each consumer 1000 Space What resources do organisms need? Fig Carbon cycle CO 2 levels in Hawaii and average global temp. Fig 55.21 Fig Nitrogen cycle 80% in air Nitrogen as part of amino acids NNN Fig Nitrogen cycle 80% in air Fig 55.6 Resources are not evenly distributed Fig Ecosystems on Earth: resources are not evenly distributed Ecology: We are all connected and interdependent Toxic Garbage Island movie W 4/21 at 5pm in JES A121A Exam averages: #1 = 78.7 #2 = 73.5 #3 = 67.4