Environmental Change Part 6 Flashcards
What are some examples of drivers in a DPSIR analysis of coral bleaching?
Humans consume more, overuse resources, and unnatural fertilisers which grow food faster to keep up with production demands
What are some examples of pressures in a DPSIR analysis of coral bleaching?
Enormous amounts of resources extracted every year, and waste, sewage and chemicals are released into the reef
What are some examples of state in a DPSIR analysis of coral bleaching?
Thousands of fish species have perished and biodiversity loss has occurred
What are some examples of impacts in a DPSIR analysis of coral bleaching?
The cultural and aesthetic value of the land has been reduced, and benefits such as climate regulation and water purification have been lost
What are some examples of social factors in a TBL response to changing albedo?
Could lead to further consequences in the environment and many groups losing, and local communities will have to deal with an increased risk of living conditions
What are some examples of environmental factors in a TBL response to changing albedo?
The release of substances is being replaced by more ecologically destructive particles and there are risks which could cause natural human disasters
What are some examples of economic factors in a TBL response to changing albedo?
The cost of changing the albedo would be huge, climate disasters would negatively affect the economy and placing carbon dioxide into the atmosphere may not be a wise use of government funding
What does biodiversity refer to?
The variety of living organisms on the planet, measured by the number of species present in a particular ecosystem
What will a loss of biodiversity impact?
The natural environment and all human beings
Which species have currently suffered the most extinctions and approximately how many species?
Birds, around 500 extinct species
Why are amphibian species currently declining?
In drier, warmer climates, frogs are losing more water through their skin then they are receiving, because their skin is thin and permeable
Where is an example in the world of an ecosystem which contains a large amount of biodiversity?
The Amazon Basin in Brazil
Why is biodiversity of such high value to humans?
It provides the ecosystem services of food, fibre, water supplies and crop pollination
How will biodiversity loss affect people living in the cities?
It will limit food supply, cause supermarkets to become barren, negatively impact the economy and decrease the quality of life
What is maximum sustainable yield?
The largest long-term average catch that can be taken from a stock under prevailing ecological and environmental conditions
