L14 Ch 54&59

L14 Ch 54&59 - Lecture 14: Chapters 54 & 59...

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Ecosystems-I What is a biome? A type of ecosystem that is unique to a given region and is characterized by distinct types of flora and fauna Types of biomes: Terrestrial Deserts Forests tropical, temperate, boreal (taiga) Grasslands savanna, temperate, steppes Tundra arctic, alpine Chaparral Aquatic Freshwater ponds, lakes streams, rivers Marine oceans (pelagic) coral Reefs shore (intertidal) sea floor (benthic) Wetlands Estuaries Terrestrial Biomes Climograph
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A - tropical rain forest Climate: hot and humid; warm year round; average precipitation is around 50-260 inches/year Location : almost all near the equator Plants: closed canopy of trees, bromeliads, orchids, ferns, mosses, vines Animals: high animal diversity B – deserts Climate: Can be hot or cold; average precipitation is around 10 inches/year Location : Found throughout the world Plants: low, scattered vegetation, lots of bare ground Animals: few large mammals, mammals are usually small (burrowers and nocturnal) like the kangaroo rat; reptile are dominant: snakes, lizards; other animals which are common are scorpions, ants, beetles, birds; fish can also live here in small springs. In the cold varieties of this biome, you can find antelope, ground squirrels, jackrabbits, and kangaroo Rats. C – Temperate rain forest Climate: mild winters and cool summers; average precipitation is around 50-140 inches/year Location : along coasts; largest along the Pacific Northwest in USA, but found southeast coast of Chile, and other areas of New Zealand, southern Australia, Japan, and the United Kingdom. Plants: spruces, hemlocks, and other coniferous trees; maples, alders Animals: Douglas’ squirrel, black-tailed deer, otter, elk, marmot, black bear, birds.
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D – Savannas (grasslands) Climate : average precipitation is around 30-40 inches/year, but some can get as little as 6 inches or as much as 26; has both a dry and rainy season with long periods of drought; annual fires are common; summers and winters are hot; long dry season Location: cover almost half the surface of Africa (about five million square miles, generally central Africa) and large areas of Australia, South America, and India. Plants:
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This note was uploaded on 10/28/2011 for the course BIO 181 taught by Professor Milton during the Fall '08 term at N.C. State.

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L14 Ch 54&59 - Lecture 14: Chapters 54 & 59...

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