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GACS lclab Honors Biology - Chapter 3 - Communities, Biomes, and Ecosystems - Section 3.2 - Terrestial Biomes

GACS lclab Honors Biology - Chapter 3 - Section 3.2 - Terrestial Biomes
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ecosystems on land are grouped into biomes
primarily based on the plant communities within them
plant communities are specific to
particular ecosystems
weather
the condition of the atmosphere at a specific place and time
latitude
the distance of any point on the surface of the Earth north or south of the equator
latitude
ranges from 0 degrees at the equator to 90 degrees at the poles
polar, temperate and tropical zones
areas where the Earth's surface is heated differently because the light from the Sun strikes the Earth more directly at the equator than at the poles
climate
the average weather conditions in an area, including temperature and precipitation
latitude
has a large effect on an areas climate
biome
large group of ecosystems that share the same climate and have similar types of communities
Ways humans have affected climate
the hole in the ozone layer and through global warming
global warming
in part a result of the greenhouse effect
biomes
classified primarily according to the characteristics of their plants
biomes
also characterized by temperature and precipitation; animial species are also important
winds
created by temperature imbalances
tundra
treeless biome with a layer of permanently frozen soil below the surface
permafrost
permanently frozen soil below the surface
tundra
extends in a band below the polar ice caps across North America, Europe and Siberia in Asia
boreal forest
broad band of dense evergreen forest also called northern coniferous forest
boreal forest
extends across NOrth America, Europe and Asia
temperate forests
composed mostly of broad-leaved, deciduous trees
deciduous trees
trees that shed their leaves in autumn
temperate forests
cover much of southeastern Canada, eastern United States and most of Europe
woodland biome
occurs in areas surrounding the Mediterranean Sea on the western coasts of North and South America, and in South Afrida and Australia
chaparral
areas dominated by shrubs
woodlands and mixed shrub communities
areas with less annual rainfall then temperate forests
grassland
biome that is characterized by fertile soils that are able to support a thick cover of grasses
temperate grassland
found in North America, South America, Asia, Africa and Australia
desert
any area in which annual rate of evaporation exceeds the rate of precipitation
tropical savanna
characterized by grasses and scattered trees in climates that receive less precipitation than some other tropical areas
tropical savanna biomes
occur in Africa, South America and Australia
tropical seasonal forests
tropical dry forests
tropical rain forest
warm temperatures and large amounts of rainfall throughout the year
tropical rain forest
most diverse of all land biomes
mountains
do not fit the definition of a biome because their climate characteristics and plant and animal life vary depending on elevation
polar regions
border the tundra at high latitudes