u06 ecosystems
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ESSENTIAL NATURAL SCIENCE 2Unit 6
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Ecosystems
ESSENTIAL NATURAL SCIENCE 2Unit 6
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CONTENTS
ECOSYSTEMSTerrestrial ecosystems
Abiotic factors related to climateDistribution of the main typesThe soil ecosystem
Aquatic ecosystems
Abiotic factorsTypes
Biodiversity
Valuation of biodiversity
Natural terrestrial ecosystems
MountainDeciduous forests
Ecosystems created by man
Cultivated landParks and gardens
Marine ecosystems
Intertidal zoneZones Marine animals
Freshwater ecosystems
Rivers and streamsLagoons and marshes
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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 factorsin 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
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Abiotic factors related to climate in terrestrial ecosystems
Light TemperatureHumidity
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Distribution of the main types of terrestrial ecosystems
Arctic Circle
Tropic of
Cancer
Tropic of
Capricorn
Antarctic
Circle CLICK ON THE COLOURED BOXES
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Tropic of
Cáncer
Tropic of
Capricorn
Distribution of the main types of terrestrial ecosystems
Arctic Circle
Antarctic
Circle
COLD DESERTCOLD DESERT
Frigid zone (Cold zone)Frigid zone (Cold zone)
CLICK ON THE COLOURED BOXES
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Tropic of
Cáncer
Tropic of
Capricorn
Distribution of the main types of terrestrial ecosystems
Arctic Circle
Antarctic
Circle
HIGH MOUNTAINHIGH MOUNTAIN
Frigid zone (Cold zone)Frigid zone (Cold zone)
CLICK ON THE COLOURED BOXES
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Arctic Circle
Tropic of
Cáncer
Tropic of
Capricorn
Antarctic
Circle
Distribution of the main types of terrestrial ecosystems
TUNDRATUNDRA
Frigid zone (Cold zone)Frigid zone (Cold zone)
CLICK ON THE COLOURED BOXES
ESSENTIAL NATURAL SCIENCE 2Unit 6
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Tropic of
Cáncer
Tropic of
Capricorn
Distribution of the main types of terrestrial ecosystems
Arctic Circle
Antarctic
Circle
TAIGATAIGA
Frigid zone (Cold zone)Frigid zone (Cold zone)
CLICK ON THE COLOURED BOXES
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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 STEPPESPRAIRIE OR STEPPES
Temperate zone Temperate zone
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Tropic of
Cáncer
Tropic of
Capricorn
Distribution of the main types of terrestrial ecosystems
Arctic Circle
Antarctic
Circle CLICK ON THE COLOURED BOXES DECIDUOUS FORESTDECIDUOUS FOREST
Temperate zone Temperate zone
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Tropic of
Cáncer
Tropic of
Capricorn
Distribution of the main types of terrestrial ecosystems
Arctic Circle
Antarctic
Circle CLICK ON THE COLOURED BOXES
MEDITERRANEAN FORESTMEDITERRANEAN FOREST
Temperate zone Temperate zone
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Tropic of
Cáncer
Tropic of
Capricorn
Distribution of the main types of terrestrial ecosystems
Arctic Circle
Antarctic
Circle CLICK ON THE COLOURED BOXES
RAINFORESTRAINFOREST
Torrid zone (Hot zone)Torrid zone (Hot zone)
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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)GRASSLAND (SAVANNAH)
Torrid zone (Hot zone)Torrid zone (Hot zone)
ESSENTIAL NATURAL SCIENCE 2Unit 6
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Tropic of
Cáncer
Tropic of
Capricorn
Distribution of the main types of terrestrial ecosystems
Arctic Circle
Antarctic
Circle CLICK ON THE COLOURED BOXES
HOT DESERTHOT DESERT
Torrid zone (Hot zone)Torrid zone (Hot zone)
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High mountain ecosystems
falcon
chamois
lizard
pines
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Deciduous forests
ferns
moss
beech
birch
butterfly
owl
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Cultivated land
ferns
tree
vole
rabbit
wheat field
fox
fieldmouse
bird of prey
weeds
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Parks and gardens
trees
pigeons
ducks
insects
bushes
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The soil ecosystem
SEE PROCESS
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The soil ecosystem
Well-developed soil; inhabited by animals
Horizons (layers) are formed.
Living organisms cause rock to break up.
Weathering begins.SEE PROCESSSEE PROCESS
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The soil ecosystem
Well-developed soil; inhabited by animals
Living organisms cause rock to break up.
Weathering begins.
Horizons (layers) are formed.
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temperature
Abiotic factors in aquatic ecosystems
light
photic zone
aphotic zone
pressure
-
+
salinity
oxygen
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Types of aquatic ecosystems
Lentic ecosystems: pools, ponds and lakes
Marine ecosystems
Neritic zone open oceanAccording to distance
According to depthneritic zone
pelagic zone
abyssal plain
200 m
2 000 m
Lotic ecosystems: streams and rivers
Freshwater ecosystems
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Types of aquatic ecosystems
Zones in marine ecosystems
pelagic zone
neritic zone
abyssal zone
intertidal zone
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Intertidal zone
seagull
crablimpets
seaweed
starfish
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Marine animals
ZooplanktonNekton:
common fish, whales, squid, etc.
Benthos:starfish, clams, snails, etc.
Marine animals can be divided into 3 groups:
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Rivers and streams
algae
aquatic birds
stork
reeds
dragonfly
trout
otter
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Lagoons and marshes
fish
ducks
frog
snake
cattailsheron
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Valuation of biodiversity
High
Forests
Low
Cultivated land
Very high
Rainforest
Very high
Meadows
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Links
Ecosystemshttp://library.thinkquest.org/11353/indexframe2.htm
Earth floor biomes http://www.cotf.edu/ete/modules/msese/earthsysflr/summary.html
Biomes and Ecosystemshttp://www.mbgnet.net/
Habitats gamehttp://www.activescience-gsk.com/module2/home.html
The freshwater biomehttp://www.ucmp.berkeley.edu/exhibits/biomes/freshwater.php
Ecosystems IIhttp://www.windows.ucar.edu/tour/link=/earth/ecosystems.html&edu=mid
The marine biomehttp://www.ucmp.berkeley.edu/exhibits/biomes/marine.php
Investigate an ecosystemhttp://www.fi.edu/tfi/units/life/habitat/habact3.html
Ecosystems: Play the Quiz http://magma.nationalgeographic.com/ngexplorer/0403/quickflicks/
Introduction to biomeshttp://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/intro.html
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