U06 Ecosystems

Ecosystems CONTENTS RESOURCES

CONTENTS ECOSYSTEMS Terrestrial ecosystems Abiotic factors related to climate Distribution of the main types The soil ecosystem Aquatic ecosystems Abiotic factors Types Biodiversity Valuation of biodiversity Natural terrestrial ecosystems Mountain Deciduous forests Ecosystems created by man Cultivated land Parks and gardens Marine ecosystems Intertidal zone Zones Marine animals Freshwater ecosystems Rivers and streams Lagoons and marshes

RESOURCES HOME Abiotic factors related to climate in terrestrial ecosystems Distribution of the main types of terrestrial ecosystems High mountain ecosystems Soil ecosystems Deciduous forests Cultivated land Parks and gardens Abiotic factors in aquatic ecosystems Marine animals Rivers and streams Lagoons and marshes Valuation of biodiversity Types of aquatic ecosystems Zones in marine ecosystems Intertidal zone Links Ecosystems

Abiotic factors related to climate in terrestrial ecosystems Light Temperature Humidity

Distribution of the main types of terrestrial ecosystems Arctic Circle Tropic of Cancer Tropic of Capricorn Antarctic Circle CLICK ON THE COLOURED BOXES

Tropic of Cáncer Tropic of Capricorn Distribution of the main types of terrestrial ecosystems Arctic Circle Antarctic Circle CLICK ON THE COLOURED BOXES COLD DESERT Frigid zone (Cold zone) X

Tropic of Cáncer Tropic of Capricorn Distribution of the main types of terrestrial ecosystems Arctic Circle Antarctic Circle CLICK ON THE COLOURED BOXES HIGH MOUNTAIN Frigid zone (Cold zone) X

Arctic Circle Tropic of Cáncer Tropic of Capricorn Antarctic Circle Distribution of the main types of terrestrial ecosystems CLICK ON THE COLOURED BOXES TUNDRA Frigid zone (Cold zone) X

Tropic of Cáncer Tropic of Capricorn Distribution of the main types of terrestrial ecosystems Arctic Circle Antarctic Circle CLICK ON THE COLOURED BOXES TAIGA Frigid zone (Cold zone) X

Tropic of Cáncer Tropic of Capricorn Distribution of the main types of terrestrial ecosystems Arctic Circle Antarctic Circle CLICK ON THE COLOURED BOXES PRAIRIE OR STEPPES Temperate zone X

Tropic of Cáncer Tropic of Capricorn Distribution of the main types of terrestrial ecosystems Arctic Circle Antarctic Circle CLICK ON THE COLOURED BOXES DECIDUOUS FOREST Temperate zone X

Tropic of Cáncer Tropic of Capricorn Distribution of the main types of terrestrial ecosystems Arctic Circle Antarctic Circle CLICK ON THE COLOURED BOXES MEDITERRANEAN FOREST Temperate zone X

Tropic of Cáncer Tropic of Capricorn Distribution of the main types of terrestrial ecosystems Arctic Circle Antarctic Circle CLICK ON THE COLOURED BOXES RAINFOREST Torrid zone (Hot zone) X

Tropic of Cáncer Tropic of Capricorn Distribution of the main types of terrestrial ecosystems Arctic Circle Antarctic Circle CLICK ON THE COLOURED BOXES GRASSLAND (SAVANNAH) Torrid zone (Hot zone) X

Tropic of Cáncer Tropic of Capricorn Distribution of the main types of terrestrial ecosystems Arctic Circle Antarctic Circle CLICK ON THE COLOURED BOXES HOT DESERT Torrid zone (Hot zone) X

High mountain ecosystems falcon chamois lizard pines

Deciduous forests ferns moss beech birch butterfly owl

Cultivated land ferns tree vole rabbit wheat field fox field mouse bird of prey weeds

Parks and gardens trees pigeons ducks insects bushes

The soil ecosystem SEE PROCESS

The soil ecosystem Well-developed soil; inhabited by animals Horizons (layers) are formed. Living organisms cause rock to break up. Weathering begins. SEE PROCESS SEE PROCESS

The soil ecosystem Well-developed soil; inhabited by animals Living organisms cause rock to break up. Weathering begins. Horizons (layers) are formed.

temperature Abiotic factors in aquatic ecosystems light photic zone aphotic zone pressure salinity oxygen - +

Types of aquatic ecosystems Marine ecosystems Freshwater ecosystems Lentic ecosystems: pools, ponds and lakes Neritic zone open ocean According to distance According to depth neritic zone pelagic zone abyssal plain 200 m 2 000 m Lotic ecosystems: streams and rivers

Types of aquatic ecosystems Zones in marine ecosystems pelagic zone neritic zone abyssal zone intertidal zone

Intertidal zone seagull crab limpets seaweed starfish

Marine animals Zooplankton Nekton: common fish, whales, squid, etc. Benthos: starfish, clams, snails, etc. Marine animals can be divided into 3 groups:

Rivers and streams algae aquatic birds stork reeds dragonfly trout otter

Lagoons and marshes fish ducks frog snake cattails heron

Valuation of biodiversity Forests Cultivated land Very high Rainforest Very high Meadows High Low

Links Ecosystems http://library.thinkquest.org/11353/indexframe2.htm Earth floor biomes http:// www.cotf.edu/ete/modules/msese/earthsysflr/summary.html Biomes and Ecosystems http:// www.mbgnet.net / Habitats game http://www.activescience-gsk.com/module2/home.html The freshwater biome http:// www.ucmp.berkeley.edu/exhibits/biomes/freshwater.php Ecosystems II http:// www.windows.ucar.edu /tour/link=/earth/ ecosystems.html&edu =mid The marine biome http:// www.ucmp.berkeley.edu/exhibits/biomes/marine.php Investigate an ecosystem http://www.fi.edu/tfi/units/life/habitat/habact3.html Ecosystems: Play the Quiz http://magma.nationalgeographic.com/ngexplorer/0403/quickflicks/ Introduction to biomes http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/intro.html

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U06 Ecosystems

by Alkor on Jan 04, 2010

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