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Ecology: We are all connected and interdependent “Toxic Garbage Island” movie W 4/21 at 5pm in JES A121A.

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Presentation on theme: "Ecology: We are all connected and interdependent “Toxic Garbage Island” movie W 4/21 at 5pm in JES A121A."— Presentation transcript:

1 Ecology: We are all connected and interdependent “Toxic Garbage Island” movie W 4/21 at 5pm in JES A121A

2 Two ways to think about the world: atoms molecules organelles cells tissues organs systems organisms ecosystem Reductionism holism planet

3 Food Web (This one is from Antarctica) Fig 54.12

4 Ecological Interconnections

5 Fig 55.4 Interconnections

6 Fig 53.20 Predator-Prey interactions

7 Hare populations are limited by predation and food availability.

8 Carrying Capacity exponential growth stationary phase Fig 53.12

9 Fig 53.3 Population size includes births, deaths, and migration

10 Human Population Growth Fig 53.22 as of 4/15 at 10 04 pm: 6,815,080,019

11 What limits Carrying Capacity?… Fig 53.12

12 Space …Availability of resources.

13 Availability of resources and removal of waste limits carrying capacity Fig 55.4

14 Fig 53.20 Predator-Prey interactions

15 fewer consumers than producers Fig 55.11

16 Energy is lost in each consumer 1000 3 30 200 1000

17 Fig 55.11 1000 Energy is lost as it is consumed: where does it go?

18 Fig 55.9 only a small percent of energy from plants enters the food chain

19 Fig 55.9 only a small percent of energy is stored in organism

20 Fig 55.11 Energy is lost in each consumer 1000

21

22 Space What resources do organisms need?

23 Fig 55.14 Carbon cycle

24 CO 2 levels in Hawaii and average global temp. Fig 55.21

25 Fig 55.14 Nitrogen cycle 80% in air

26 Nitrogen as part of amino acids NNN

27 Fig 55.14 Nitrogen cycle 80% in air

28 Fig 55.6 Resources are not evenly distributed

29 Fig 52.19 Ecosystems on Earth: resources are not evenly distributed

30 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


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