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Chapter 4 sections 1, 4, 5 Climate and Biomes

Chapter 4 sections 1, 4, 5 Climate and Biomes. Key Questions. What is climate? What factors determine global climate? What abiotic and biotic factors characterize biomes? What areas are not easily classified into a major biome? What factors affect life in aquatic ecosystems?

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Chapter 4 sections 1, 4, 5 Climate and Biomes

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  1. Chapter 4 sections 1, 4, 5Climate and Biomes

  2. Key Questions What is climate? What factors determine global climate? What abiotic and biotic factors characterize biomes? What areas are not easily classified into a major biome? What factors affect life in aquatic ecosystems? What are the major categories of freshwater ecosystems? Why are estuaries so important? How do ecologists usually classify marine ecosystems?

  3. Climate Weather vs. Climate Temperature and Precipitation Microclimates

  4. What affects global climates? Solar Energy Greenhouse Effect Latitude 0o N/S to 23.5o N/S tropical 23.5o N/S -66.5o N/S temperate 66.5o N/S to 90o N/S polar

  5. What affects global climates? Ocean/Wind Currents Warm rises, cold sinks Creates wind/ocean currents

  6. BiomesDescribed by biotic and abiotic factorsAdaptations of organisms Land Biomes: Temperate Deciduous Forest Tropical Rain Forest Savannah Desert Prairie Tundra Taiga Not Easily Classified: Mountain Ranges Polar Ice Caps

  7. Aquatic Ecosystems Factors affecting organisms: Depth—Photic/Aphotic/Benthos Temperature/Current—poles and deeper areas are colder Affected by currents Dissolved Nutrients O, N, P, K

  8. Freshwater Ecosystems Rivers and Streams Lakes and Ponds Wetlands Purify Water Prevent Flooding Highly endangered

  9. Freshwater/Saltwater Mix Estuaries Special Wetland Shallow, photosynthesis in benthos Large biomass Commercially and biologically important Ex: Chesapeake Bay, MD and Florida Everglades

  10. Marine Ecosystems Depth and Distance Distance: Intertidal Coastal Open Ocean Depth: |---|-----|-------------------------------> Photic Aphotic

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