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Flashcards in Ch. 3 Deck (31):
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community

group of interacting populations that also includes plants, other animals, bacteria, & fungi

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limiting factor

abiotic/biotic factor that restricts the numbers and reproduction, or distribution of organisms

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tolerance

ability of an organism to survive when subjected to abiotic factors/biotic factors

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ecological succession

establishment of a community in an area of exposed rock that doesn't have any topsoil

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climax community

stable, mature community that results when there is little change in the composition of species

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secondary succession

orderly and predictable change that takes place after a community of organisms has been removed but the soil has remained intact

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weather

condition of the atmosphere at a specific place and time

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latitude

the distance of any point on the surface of the earth north or south from the equator

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climate

average weather conditions in an area including temperature and precipitation

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tundra

treeless biome with a layer of permanently frozen soil below the surface called permafrost

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boreal forest

broad band of dense evergreen forest extending south across north america europe and asia

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temperate forest

composed of broad leaved, deciduous trees

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temperate forest

Composed of broad-leaved, deciduous trees that shed their leaves in autumn

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woodlands

Found in areas with less annual rainfall than in temperate forest

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grassland

A biome that is characterized by fertile soils that are able to support a thick cover of grasses

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desert

any area in which the annual rate of evaporation exceeds the rate of precipitation

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tropical savanna

Characterized by grasses and scattered trees in climates that receive less precipitation than some other tropical areas

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tropical seasonal rainforest

grow in areas of Africa, Asia, Australia, and South and Central America

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tropical rainforest

Warm temperatures and large amount of rainfall throughout the year

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sediment

material that is deposited by water,wind, or glaciers

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littoral zone

the area closest to the shore

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limnetic zone

the open water that is well lit and is dominated by plankton

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plankton

free-floating photosynthetic autotrophs that live in freshwater or marine ecosystems

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profundal zone

minimal light is able to penetrate through the lemnetic zone into the deepest areas of a large lake

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wetlands

areas of land such as marshes,swaps, and bogs that are saturated with water and that support aquatic plants

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estuary

an ecosystem that is formed where freshwater from a river or stream merges with salt water from the ocean

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intertidal zone

a narrow band where the oceans meet land

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photic zone

the area to a depth of about 200 m of the pelagic zone

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aphotic zone

an area where sunlight is unable to penetrate

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benthic zone

the area along the ocean floor that consists of sand,salt, and dead organisms

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abyssal zone

the deepest region of the ocean