2 34.1 The Biosphere is the Global Ecosystem Ecology = study of organisms and their environmentBiotic Factors = living components of ecosystemExamples…Abiotic Factors = nonliving components of ecosystem
12 34.1 Concept Check Questions 2. Describe what is meant by the "patchiness" of the environment.
13 34.1 Concept Check Questions 3. Explain the importance of sunlight as an abiotic factor in terrestrial ecosystems.Controls:TemperatureHumidityPhotosynthesis ratesEtc.
14 34.1 Concept Check Questions 4. Define biotic and abiotic factors and give an example of each for a particular ecosystem.Biotic- living factorGrass, bacteria, squirrel, treeAbiotic – nonliving factorRock, water, air
15 34.1 Concept Check Questions 5. Explain why it is more accurate to define the biosphere as the global ecosystem than as the global community.The biosphere includes abiotic as well as biotic features… therefore the term ecosystem is more appropriate.
16 34.2 Climate determines patterns in the biosphere Sun’s rays produce 3 zones:ArcticTemperateTropic
17 34.2Difference in temperatures produces winds… adding to effect
18 34.2Local Climate = daily weather for a small area (Sycamore vs. Chicago)Can be different due to…Lake MichiganMississipi RiverValleyMicroclimate = differences within areaDue to shade, buildings, above/below ground
19 Concept Check 34.21. Explain how the uneven heating of Earth's surface creates different temperature zones. 2. How do surface currents affect climate patterns? 3. Why might a town located on a large lake be cooler in the summer than a town 100 kilometers away from the lake? 4. Give an example of a microclimate
20 34.3Biome = major type of terrestrial ecosystem that covers a large area of land
27 Deciduous Forest Significant precipitation Trees drop leaves each year Warm summers, cold winters
28 Coniferous Forest Dry and cold Evergreens Trees do NOT drop leaves AKA tiaga
29 Tundra Permafrost Plants are low and shrubby Alpine or arctic Low light
30 Concept Check 34.31. What factors determine the type of biome in an area? 2. Compare and contrast tropical rain forests, temperate deciduous forests, and coniferous forests. 3. Give an example of how a desert organism has adapted to the abiotic conditions there.
31 Climate (temperature & precipitation) and Latitude
33 Concept Check 34.41. Describe the abiotic factors that affect organisms in ponds, streams, and estuaries. 2. Compare and contrast the intertidal zone, neritic zone, and oceanic zone. 3. Discuss sunlight as an abiotic factor in coral reefs and vent communities.