ESSENTIAL NATURAL SCIENCE 2Unit 6

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Ecosystems

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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

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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)

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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