How Climate Change Affects Biology-lec 171

How Climate Change Affects Biology-lec 171 - Lecture 17...

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Lecture 17 • Final Exam Tu 3/14 8-10:50AM, Peterson 108
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How Climate Change Affects Biology
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Climate Change • What does it mean?
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Climate Change • What does it mean for us?
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How an ecosystem works Energy from sunlight detritus feeders and decomposers primary consumers producers HEAT higher-level consumers HEAT HEAT NUTRIENTS heat energy solar energy energy stored in chemical bonds nutrients HEAT
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Sugar is synthesized and used in plant tissues plant tissues, growth Energy is captured from sunlight Carbon dioxide is absorbed from the air Oxygen is released Water is absorbed from soil, used in photosynthesis, and stored in cells Inorganic mineral nutrients (nitrate, phosphate) are absorbed from soil and used in plant tissues photosynthesis How Does Energy Flow Through Ecosystems? Photosynthesis Fig. 29-2
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How Does Energy Flow Through Ecosystems?
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How Does Energy Flow Through Ecosystems? • Ecosystem productivities compared. Fig. 29-3 desert (90) open ocean (125) continental shelf (360) tundra (140) coniferous forest (800) temperate deciduous forest (1,200) grassland (600) tropical rain forest (2,200) estuary (1,500)
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TERTIARY CONSUMER (4th trophic level) PRODUCER (1st trophic level) A simple terrestrial food chain (a) SECONDARY CONSUMER (3rd trophic level) PRIMARY CONSUMER (2nd trophic level) Food Chains • A simple terrestrial food chain Fig. 29-4a
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How Climate Change Affects Biology-lec 171 - Lecture 17...

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