land biomes review. tropical rain forest hot and wet year-round thin, nutrient-poor soils...
TRANSCRIPT
![Page 1: Land Biomes Review. Tropical Rain Forest Hot and wet year-round Thin, nutrient-poor soils Broad-leafed evergreen trees, ferns, vines, orchids and bromeliads](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfc31a28abf838ca53a0/html5/thumbnails/1.jpg)
Land Biomes Review
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Tropical Rain Forest
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Tropical Rain Forest
• Hot and wet year-round• Thin, nutrient-poor soils• Broad-leafed evergreen trees, ferns,
vines, orchids and bromeliads• Sloths, monkeys, toucans, ants,
beetles, piranhas, boa constrictors and anacondas, jaguars, parrots, parakeets
• Canopy and under story present
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Tropical Rain Forest
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Tropical Rain Forest
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Tropical Dry Forest
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Tropical Dry Forest• Warm year-round, alternating wet and
dry season and rich soils that are subject to erosion
• Rain is seasonal rather than year-round
• Trees drop leaves to conserve water during dry season (deciduous)
• Tall, deciduous trees, drought-tolerant orchids, bromeliads and aloes
• Tigers, monkeys, elephants, pelicans, snakes and monitor lizards.
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Tropical Dry Forest
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Tropical Savanna
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Tropical Savanna
• Receives more rainfall than deserts, but less than tropical dry forests
• Covered in grasses with isolated trees and small shrubs
• Has compact soils, fairly frequent fires and the action of large animals prevent them from turning into dry forest
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Tropical Savanna
• Warm temperatures, seasonal rainfall, compact soil and frequent fires set by lightning
• Tall grasses and drought-tolerant and fire-resistant trees and/or shrubs
• Lions, leopards, cheetahs, hyenas, elephants, giraffes, zebras, baboons, termites
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Tropical Savanna
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Desert
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Desert
• Annual precipitation is less than 25 cm per year!
• Deserts vary greatly, depending on elevation and latitude
• Extreme temperature changes during the course of a day
• Soils rich in minerals but poor in organic material
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Desert
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Desert
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Temperate Grassland
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Temperate Grassland
• Once covered vast areas of the midwestern and central U.S; most have been converted to agricultural fields now
• Periodic fires and heavy grazing by large herbivores
• Warm to hot summers, cold winters• Moderate, seasonal precipitation• Fertile soils
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Temperate Grassland
• Lush, perennial grasses that are resistant to drought, fire and cold
• Coyotes, badgers, antelope, prairie dogs, snakes, ants, grasshoppers, mule deer, rabbits and prairie chickens and historically included wolves, grizzly bears and bison.
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Temperate Grassland
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Temperate Woodland and Shrubland
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Temperate Woodland and Shrubland
• Hot, dry summers and cool, moist winters• Thin, nutrient-poor soils and periodic fires
• Woody evergreen shrubs with small leather leaves; fragrant, oily herbs that grow during winter and die in summer
• Dense, low plants that contain flammable oils makes fires a constant threat
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Temperate Woodland and Shrubland
• Also known as chaparral• Includes coyotes, foxes, bobcats, mountain lions, deer, rabbits, squirrels, hawks, lizards, snakes and butterflies
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Temperate Woodland and Shrubland
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Temperate Deciduous Forest
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Temperate Deciduous Forest
• Contains a mixture of deciduous and coniferous forests
• Cold winters that halt plant growth for several months
• Deciduous trees shed their leaves in fall• Contains a ground layer of mosses and
ferns• Soils are rich in humus, a material
formed from decaying leaves and other organic matter that makes soil fertile.
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Temperate Deciduous Forest
•Cold to moderate winters and warm summers
•Year-round precipitation•Fertile soils•Deer, black bears, bobcats,
squirrels, raccoons, skunks, songbirds and turkeys
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Temperate Deciduous Forest
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Temperate Deciduous Forest
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Northwestern Coniferous Forest
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Northwestern Coniferous Forest• Mild, moist air from the Pacific Ocean
provides abundant rainfall to this biome. • Conifers (giant redwoods, spruce, fir and
hemlock), moss, flowering trees• Also called the “temperate rain forest”• Abundant precipitation during fall, winter
and spring.• Relatively cool and dry summer• Rocky, acidic soils• Bears, elk, deer, beavers, owls, bobcats
and weasels
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Northwestern Coniferous Forest
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Boreal Forest (taiga)
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Boreal forest (taiga)• Dense, evergreen forests of mostly
conifers.• Winters are bitterly cold and long, but
the summers are mild and long enough to allow the ground to thaw.
• Moderate precipitation• High humidity• Acidic, nutrient-poor soils
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Boreal forest (taiga)•Coniferous trees such as spruce
and fir, some deciduous trees and small, berry-bearing shrubs
•Lynxes and timber wolves and weasels, small herbivorous mammals, moose and other large herbivores, beavers and migratory birds and songbirds.
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Boreal Forest (taiga)
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Tundra
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Tundra•Has a layer of permanently frozen
subsoil called permafrost.•Short, cool summers•Cycle of thawing and freezing rips and
crushes plant roots, so the plants here are small and stunted
•High winds, low precipitation, short and soggy summers and long, cold and dark winters
•Poorly developed soils
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Tundra•Mosses, lichens and short grasses
•Migratory waterfowl, shore birds, musk ox, arctic foxes, caribou, small rodents
•Organisms that live here have to withstand the harsh conditions!
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Tundra