AP Biology Reading Guide Chapter 52 An Introduction to Ecology and the Biosphere Fred and Theresa Holtzclaw

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Chapter 52: An Introduction to Ecology and the Biosphere

Overview

1. What is ecology? -~~e SG i P.a.., t

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2. Study Figure 52.2. It shows the different levels of the biological hierarchy studied by ecologists. Notice also the different types of questions that might be studied by an ecologist at each level of study. Use this figure to define or explain the following terms:

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global ecology - W k--P— E~(Q/t0.~ Clkc

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Concept 52.1 Ecology integrates all areas of biological research and informs environmental decision making

3. Contrast the terms ecology and environmentalism. How does ecology relate to environmentalism?

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AP Biology Reading Guide Chapter 52 An Introduction to Ecology and the Biosphere Fred and Theresa Holtzclaw

4. What environmental issue was targeted in Rachel Carson's book, Silent Spring? What was the outcome of her efforts?

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Concept 52.2 Interactions between organisms and the environment limit the distribution of species

5. What is biogeography? What factors determine the distribution of organisms?

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6. Read this section carefully to understand different types of experiments and observations that help explain the distribution of species. As you conclude this section, list and describe five examples of biotic factors.

Biotic Factor Example and Description

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7. List five abiotic factors. Include an example and description of each factor's influence on living organisms.

Abiotic Factor Example and Description

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AP Biology Reading Guide Chapter 52 An Introduction to Ecology and the Biosphere Fred and Theresa Holtzclaw

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8. What is climate? What abiotic factors are its components?

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9. Study Figure 52. 10, which summarizes Earth's climate patterns and how they are formed. Explain how Earth's curvature and axis of rotation influence the amount of sunlight reaching a given area, and how these factors influence the temperature and precipitation in that area.

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10. Let's look at factors that affect climate on a smaller scale. Begin by studying Figure 52.11. Why is the Pacific Northwest so rainy? What causes the Mediterranean climate?

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AP Biology Reading Guide Chapter 52 An Introduction to Ecology and the Biosphere Fred and Theresa Holtzclaw

11. Explain the "rain shadow" effect. 0n -17, e- ~~.et.J~~d St G-. Of ~^e: ~~~~tsa1"1.r~~ ~► / ~oJ~e.t`

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12. What effect does elevation Have on climate? Why do we say that hiking from Gatlinburg, Tennessee, at 393 meters of elevation in the Smoky Mountains region, to the top of Mount LeConte, at 2010 meters, is like traveling to Canada?

Concept 52.3 Aquatic biomes are diverse and dynamic systems that cover most of Earth

13. What is a biome?

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14. What is the largest marine biome, and how much of Earth's surface does it cover?

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15. As you read this section and study Figure 52.18, you will encounter a number of new terms. Distinguish between each of the following pairs of terms:

photic/aphotic — I o o . {'[no Fi C A^ -0 re— / at C

benthic/pelagic — Pert a3 C -zone_ k s O pee, -

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littoral zone/limnetic zone — L-&, w e,{{ 1 i f S ha.{,~o w c.va-,4, e r. L M,

zooplankton/phytoplankton — P ,S f -(e_ c c c:" )0 z. s~.aGt' d ry f fI n ke>terd Colo ,u .. raze c-q

neritic/abyssal — ~j, S G 5+—C con ~ _ Ae) c r.i

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oligotrophic/eutrophic - 0~a.Gce_S —e n fri a "r root_ a d yr~i(~

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AP Biology Reading Guide Chapter 52 An Introduction to Ecology and the Biosphere Fred and Theresa Holtzclaw

16. The aquatic biomes are listed in the chart. Give a description of the biome below its name, and then complete the other parts of the chart.

Aquatic Biome Typical Autotrophs Typical Heterotrophs Human Impact

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Concept 52.4 The structure and distribution of terrestrial biomes are controlled by climate and disturbance

17. Figure 52.10 shows a climograph for some major biomes in North America. What two abiotic factors shown here are most important in determining the distribution of the biome?

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AP Biology Reading Guide Chapter 52 An Introduction to Ecology and the Biosphere Fred and Theresa Holtzclaw

18. Label the axes of this figure, and identify each biome shown here. Try to do this based on your understanding of the figure, and then use the text to check your answers. You will use these biomes: perwte-grassy , &-mpe-ratebreadle-ajjfarest; tropical f©rest-,-northewn-c-onffierous forest, Weseff, 'a.

19. Describe each major terrestrial biome as to rainfall, temperature, location, and representative flora and fauna.

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savanna

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AP Biology Reading Guide Chapter 52 An Introduction to Ecology and the Biosphere Fred and Theresa Holtzclaw

chaparral - a~ r ✓ E r S E' "f eve.. r` cJ r e- r i (~ o~ G~

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temperate grassland ll~Ol~ r ~ ~G~; n (~c2_ f ~t ~' -} /l t~0e rct +U r r

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t e q(--H 'C ZC7 n e l 5N-,a& n u rvx 6e r' Testing Your Knowledge: Self-Quiz Answers Now you should be ready to test your knowledge. Place your answers here:

1. 2. 3. 4. 5. 6. 7. 8. 9.

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