1.4 - Conservation Abroad

Comprehensive Notes from Chapter Four of the Nelson Thornes Textbook.

Case studies: Tropical Rainforests and the Rio Bravo Nature Reserve; Coral Reefs and The Crown Of Thorns Starfish; Antarctica and The British Antarctic Survey/ The Antarctic Treaty.

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  • Created on: 21-12-11 14:39
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1.
4 Conser
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1. Tropical Rainforest
ECOLOGICAL FEATURES
Large seasonal changes (equatorial) = biological productivity
Stability = time for varied evolution = high biodiversity
Specialised biotic factors & unspecialised abiotic factors
Inter-relations >> nutrient supply & in micro-climates (light, temp, humidity)
High but varied levels of…

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Abiotic Conditions: Stable temp (25-9®), Bright sunlight, Low turbidity (less sediment), Constant
salinity (osmotic)

IMPORTANCE OF CORAL REEFS
Support ¼ of all marine species
Substances can be used in medicine development
Food sources ­ high variety of life
Protection as wave breakers
Calcium Carbonate produces can use carbon sequestration to…

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3. Antarctica
>> Only polar land mass
PHYSICAL FEATURES
LARGE! 60x UK
98% covered by ice up to 4.5km thick
COLD! Average -49C
Ice desert ­ little/no precipitation
HIGH ALTITUDE! Average: 2,300m above sea level
LIFE
>> Low diversity (cold temp, low light)
>> Annual upwelling of nutrient rich water…

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