Ecosystems
What is an Abiotic feature in an ecosystem?
Sunlight, oxygen, water etc
Where are rainforests found?
Near the equator
What is one way to help stop deforestation in the rainforest?
Eco tourism, debt relief, selective logging, rainforest corridors etc.
Give an example of a tectonic hazard
volcanic eruption, earthquake or tsunami
What category of hazard is a tropical storm? (hydrological, atmospheric, geological/tectonic or biological)
Atmospheric
What patterns do the location of global ecosystems follow?
they roughly follow lines of latitude. E.g. rainforests are found near to the equator.
What is are the layers of the rainforest from the bottom to the top?
Forest floor, shrub, undercanopy, canopy, emergent.
What is a benefit of ecotourism?
Locals get income, less CO2, encourages cultural exchange, improves awareness/sustainability.
Define a natural hazard
A natural event which has negative impacts on people or their lives
What is your atmospheric hazard case study?
Typhoon Haiyan
Grass -> rabbit -> fox.
What 2 things would happen if the rabbit numbers declined?
Increase in grass as less rabbits eating it.
Decrease in foxes as they have less rabbits to eat.
How are plants in the emergent layer adapted?
They are waxy to stop sunburn and to help water drip off to reduce evapotransiration.
Explain selective management?
Trees are assessed and only a few are picked/marked to be chop. They then leave that area for many years to allow it to grow back. It is illegal to chop any unmarked trees. Cycle repeats. Allows for income generation and biodiversity.
Which type of plate boundary has the most explosive volcanic eruptions? Why?
Destructive because there is a large build up of pressure
What is your hydrological hazard case study?
Somerset floods
What is litter?
It is the dead plants and animals on the ground e.g. leaves that have fallen from the tree.
What is the rainforest most at risk from AND why is that bad?
Deforestation because it reduces animal habitats so the food chain is left imbalanced as they die from lack of food and shelter. Also increase CO2 so increase global warming.
What is the problem with selective management?
There is no way that LIC can manage the logging so lots of illegal logging occurs and there is nothing they can do.
Why did Chile have a lower death rate of 500 compared to Nepal's 6000. 2 reasons needed
- more money
- more money helps with the 3P's
- nepal was in mountains so had avalanches
- nepal is LIC so had lesson money
- nepal therefore didn't have money for 3P's
What are the three types of cell on the GAC model. In the correct order from the equator towards the North pole.
Hadley, Ferrel, Polar
What are the correct stages of the nutrient cycle?
Plants use nutrients in the ground to grow. Plant get eaten and the energy is transferred. The animal and plants die and decompose. Microorganisms break down the nutrients and return it to the soil. The cycle then repeats.
Why are rainforests good socially, economically and environmentally?
Medicine and food. Jobs like rubber tapping. Carbon sink and biodiversity.
Why does Malaysia continue to allow deforestation?
They need to make money some how and have a growing population. They need to sell the timber or plant palm oil farms or create land for homes to be built on.
What are your two geological/tectonic hazard case studies?
Chile and Nepal
Give 2 specific things needed for tropical storms to form
ocean temps 27 degrees Celsius and above
low air pressure
between 5 and 15 degrees north and south of the equator
open ocean