ESS case studies

Question 1

2.1 Species Interactions

Answer 1

wolves drive away deer
deer allow forests to grow (stablise soil causing change in river formation)
forests increase vegetation
these increase bears foxes and mice and rats
mice and rats increase beavers which build dam changing river formation

Question 2

3.4 Species Based Conservation

Answer 2

Captive breeding zoos
botanical gardens and seed banks

Question 3

6.2 - Montreal Protocol

Answer 3

United Nations Environmental Programme
Phase out production of ODS
best example of international cooperation
regulations that were carefully monitored

Question 4

8.2 - Dynamic Nature of natural capital

Answer 4

Cork Forests
used cork to seal wine bottles but there are now less biodegradable alternatives
cork forests are losing their natural capital to humans so are being cut down and decreasing biodiversity

Lithium
used for carbonate batteries
used to have little idea but now we use it a lot - increased natural capital

Question 5

5.1 - Acidification of Soil

Answer 5

acidified soils had major impact on forestry in Northern Europe - where acid rain caused by industrial pollution
means more available iron ions in soil causing damage to evergreen forestry through needle death

Question 6

eutrophication management example

Answer 6

Lake Erie -eutrophication occurred - algal bloom resulting in increased dead organic matter turnkey etc

Solution - lake divided into two by a plastic divider adding different gases to either side to discover the problem thus they put in a phosphate control program and legislation to control phosphate in sewers

Question 7

societies with different value systems

Answer 7

Judeo Christians
- human have responsibility toward earth - give gift to it put it first

Buddhist
Humans are intrinsic to nature
Balance

Question 8

Population policies

Answer 8

China to control population and decrease birth rate