What are the main classification of biomes? Aquatic Marine Freshwater Deserts Forests Grasslands Tundra
What are Terrestrial Biomes? Biomes that are dominated by land. Deserts Forests Grasslands Tundra
What characterizes a desert Biome? rainfall is less than 50 cm/year Usually specialized vegetation and vertebrate and invertebrate animals. Often nutrient rich soil due to lack of water and organic matter. Frequent disturbances: occasional fires or cold weather, and sudden, infrequent, but intense rains that cause flooding and erosion. few large mammals
What types of deserts are there? 1) Hot and dry 2) Semiarid 3) Coastal 4) Cold
What characterizes grasslands? Dominated by grass (instead of shrubs or trees)
What types of grassland are there? Savannas (tropical grasslands) Temperate grasslands
What characterizes a tundra? Extremely cold climate Low biotic diversity Simple vegetation structure Limitation of drainage Short season of growth and reproduction Energy and nutrients in the form of dead organic material Large population oscillations
What types of Tundras are there? Artic Tundra Alpine Tundra
What characterizes a forest biome? Dominated by woody plants (trees and shrubs)
What types of forest biomes are there? Tropical Temperate Boreal (tiaga) Other classifications Wet or Dry Deciduous or Evergreen
What is an Aquatic Ecosystem? An ecosystem dominated by water.
What characterizes a Marine Biome? Mostly Salt water Cover ¾ of the surface of the earth
What types of Marine ecosystems are there? Oceans Coral reefs Estuaries
What are freshwater biomes? Less than 1% salt concentration.
What types of freshwater biomes are there? Ponds and lakes Raparian (rivers and streams) Wetlands