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Biomes

Biomes. Standards 6a & 6b. Standards 6a & 6b. 6a: Students know biodiversity is the sum total of different kinds of organisms and is affected by alterations of habitats.

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Biomes

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  1. Biomes Standards 6a & 6b

  2. Standards 6a & 6b • 6a: Students know biodiversity is the sum total of different kinds of organisms and is affected by alterations of habitats. • 6b: Students know how to analyze changes in an ecosystem resulting from changes in climate, human activity, introduction of non-native species, or changes in population size.

  3. What affects climate? • Climate in an area is affected by two main things • Direct sunlight (heat) • Precipitation • Climate directly affects the type of biome • Biome is an environment with specific vegetation and organisms • If it is cold, you have organisms that are suitable to the ____

  4. Biomes • Because of these two factors combined, we get specific biomes at specific areas. • For example, at the equator, there is a lot of sunlight, and a lot of precipitation, so there is a tropical rainforest. • At 30°, there is a lot of sunlight, but little or no precipitation, so there is a desert.

  5. Overview • Sunlight and precipitation affect the climate • Climate over an environment produces a biome • A biome has organisms suited to the climate • Biomes generally occur on the same latitudes

  6. Biomes • There are two main types of biomes • Land • Aquatic (water) • We will cover both today

  7. Land Biomes • Most land biomes are named after their climax community. • Some of the land biomes • Tundra • Taiga (TIGH-guh) • Temperate deciduous forest • Grassland • Tropical rain forest • Desert

  8. Temperate grassland Tropical rain forest Temperate forest Tundra Northwestern coniferous forest Mountains and ice caps Tropical dry forest Desert Temperate woodland and shrubland Tropical savanna Boreal forest (Taiga)

  9. Aquatic biomes • There are 3 main types of aquatic biomes. • The amount of salt determines the type of biome. • The 3 main types of aquatic biomes • Freshwater • Marine (saltwater) • Estuaries

  10. Tundra • Tundra • Located near the poles • Treeless biome covered by moss, lichens, and grasses • Permafrost – a layer of permanently frozen subsoil

  11. Taiga (Boreal Forest) • Taiga • Covered by coniferous (cone bearing) trees. • Bears, wolves, moose, elk are some of the typical animals • Coniferous Forest

  12. Temperate Biomes • Temperate climates characterized by cold winters and hot summers • Plants change during the seasons (leaves change color) • Deciduous Forest, Woodland & Shrubland, Grassland

  13. Grasslands • Grasslands • Most of the rainfall occurs in one part of the season • Hot summers, cold winters

  14. Tropical Rain/Dry Forest • Tropical rain forest • Located at equator • Receive 200-400 centimeters of rain a year • Constant temperature. • Home of the most types of animals than any other biome. Many colorful • Dry forest: less precipitation

  15. Deserts • Deserts • Located at 30° latitude • Less than 25 cm of rain falls a year • Both plants and animals must be able to retain moisture. • Birds, lizards, snakes, insects are typical • Cactus and sagebrush sparsely cover the area

  16. Freshwater biomes • Rivers, streams, and lakes

  17. Marine Biomes • Includes all of the ocean • Marine biomes are divided into 4 subcategories • Intertidal zone • Neritic zone • Open-sea zone • Deep-sea zone

  18. Estuaries • Estuaries are the boundaries between freshwater and saltwater. • Since it is a mix of the two, a variety of organisms can be supported. • Examples of estuaries • Delta, swamp, lagoon

  19. Biome Project • In groups of 3-4, create a biome presentation • Give information about the biome, including: • Temperature range (graph) • Precipitation (graph) • Location (latitudes/areas) • Plants (vegetation) • Animals • Interesting Facts • Posterboard or Powerpoint acceptable • More visuals, the better • 500000000 points • Due in two weeks!

  20. To help you out… • A Biology Textbook • http://mbgnet.mobot.org/ • http://earthobservatory.nasa.gov/Laboratory/Biome/

  21. Preplan… • What kind of presentation will you do? Powerpoint? Posterboard? • Who is doing what? Research? Picture finding? Who’s good with computers? Who’s bringing materials? • When do you want to meet up? Contact info? • Anything else you can think of…

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