The Living World Flashcards
Name an example of a small scale ecosystem in the uk
Avington park lake
What were the problems with the lake?
Lack of maintenance meant build up of silt and excessive growth of vegetation
What was the lake like after restoration?
Healthy ecosystem with increased animal diversity
Improved habitat for birds
Desisted
What was the date of restoration?
2014
Where is Avington park lake?
Winchester, Hampshire
The Avington park estate was…
A place of historical and geological importance
Name 3 examples of biotic components of ponds
Tadpole, heron, fish
Name 3 examples of abiotic components in a pond
Air, temp, water ph, turbidity, dissolved minerals, rock, soils
_________ -> _________ -> ________
What is released each time? How?
Producers -> consumers -> decomposes
Energy is released through respiration and excretion
What is the name of the largest ecosystem?
Biomes
Where is Malaysia?
Part of the island of Borneo (south east Asia)
Name 3 causes of deforestation in Malaysia
Palm oil
Miners extraction
Logging
Energy development
Cost to build bakun dam - ?
Farmland flooded - ?
Indigenous people forcefully fled - ?
2b
700km2
9000
Why does the rainforest soil lack nutrients underneath?
Nutrients is washed out due to heavy rainfall, (leaching)
What is is called when plants get their nutrients from the air?
Epiphytes
Why does the forest floor have lots of decomposers?
Lots of leaves on the floor and waste need decomposing
Name 3 economic gains and losses of deforestation
Gains:
Job opportunities
Raw materials such as palm oil makes profit
Hydro-electric power will provide energy
Losses:
- high climate means farming is harder (fruit, tea, flowers)
- plants that bring medical benefits can become extinct
- tourists attracted to rainforests could decrease
Name three ways forests can be managed sustainably
Conservation and education
Ecotourism
International agreements (FSC (sustainability label) (debt reduction)
Where are rainforests found
Between 23.5 degrees north and south of the equator
What are the temperatures like in deserts?
Very high summer temps
Low winter temps
What is a desert?
An area of land that receives less that 250mm rainfall a year
What are temperatures like in day and night in deserts?
50 degrees
0 degrees
What are soils like in the deserts?
Infertile, sandy, stony, soak up rain rapidly, lack of vegetation
Name four opportunities of development in the thar desert
Energy power
Farming
Tourism
Mineral extraction
How many people live in the thar desert?
30 million
Name three challenges of development
Accessibility
Extreme temperatures
Water supply
How long is the indira ghandi canal
650 km
