04a Biomes - Larger ecological units I The earth as an...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Larger ecological units I. The earth as an interconnected set of systems A. Biosphere (ecosphere): contains the following: 1. Atmosphere 2. Hydrosphere 3. Lithosphere II. Biomes - Areas sharing similar climate, topographic and soil conditions, and roughly comparable communities. A. Temperature and precipitation are among the most important determinants in biome distribution. B. Evapotranspiration C. Influenced by prevailing landforms. III. Terrestrial Biomes A. Deserts 1. low moisture levels and infrequent precipitation 2. Wide daily and seasonal temperature fluctuations. 3. Soils are easily disturbed 4. Plants exhibit water conservation. B. Grasslands 1. Communities of grasses, seasonal herbaceous flowering plants, and open savannas. 2. Few trees. 3. Large temperature fluctuations. 4. Frequent grass fires. C. Tundra 1. Short growing season. 2. Cold, harsh winters. 3. Water locked up. 4. Most animals migrate in winter. 5. Low biological productivity.
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern