2. Conservation and preservation
You need to be able to:-
Distinguish between conservation and preservation.
Explain that conservation is a dynamic process involving management and reclamation.
Discuss the economical, social and ethical reasons for conservation of biological resources.
Use the Galapagos islands as an example of conservation in action

3. Conservation and preservation
You need to be able to:-
Distinguish between conservation and preservation.
Explain that conservation is a dynamic process involving management and reclamation.
Discuss the economical, social and ethical reasons for conservation of biological resources.
Use the Galapagos islands as an example of conservation in action

4. Conservation or preservation?
Preservation is the protection of an area by restricting or banning human exploitation or contact – nature reserves/preserves/parks.
Conservation is maintaining biodiversity but allowing sustainable production e.g. replanting mixed tree species after felling for timber.
Management (grazing or water level control) and reclamation (preventing succession by draining) are part of conservation.
Conservation is for economic (e.g. timber industry), social (recreation) and ethical (preventing species extinction) reasons.

5. Where are they?

6. The Galapagos Islands, near Ecuador, south America

7. Charles Darwin He visited the Galapagos islands in 1835 and later
wrote about the
origin of species by
natural selection

9. Allopatric and sympatric speciation of finches by natural selection into many different niches

10. Land iguana and Giant tortoise – 2 species endemic to the Galapagos islands

11. Wildlife on the Galapagos islands

12. Marine life near the Galapagos Islands

13. Why are the wild
animals of The
Galapagos Islands
so unafraid of
humans?

14. Threats to biodiversity on the Galapagos Islands
Introduced species
e.g. rats, cats, dogs, pigs, goats leading to competition for food, water and shelter plus habitat destruction
Increase in human population leading to habitat destruction – coming for work or as tourists
Over-exploitation of resources
e.g. whales, seals, tortoises, sea cucumbers
Result:-
25% of plant and 50% of vertebrate species endemic to the islands are now endangered

15. Conservation in the Galapagos Islands
1978 become world heritage site
1998 Galapagos marine reserve created
Elimination of introduced species
e.g. feral goats and pigs and prevent others arriving
Captive breeding e.g. for giant tortoises
All decisions include the concerns of local people and balance environmental, economic and social factors

16. Conservation in the Galapagos
Lonesome George
Tourists vs Conservation
Captive breeding programme
Alien invasion
Next generation

17. Conservation in the UK
Joint Nature Conservation Committee. JNCC. Adviser to the United Kingdom Government on nature conservation issues at a Great Britain
Marine conservation
Butterfly conservation
Bat conservation
Conservation of plants and their seeds

18. Reviewing your understanding
succession conservation

19. Ecosystems and sustainability Aims of lesson 3
Revise key concepts about succession and apply them to new situations
Revise definitions of conservation and preservation and use them in some new examples
Assessment objective 1 – knowledge and understanding
Assessment objective 2 – application of knowledge and understanding
Assessment objective 3 – how science works

20. Ecosystems and sustainability Aims of lesson 3
Revise key concepts about succession and apply them to new situations
Revise definitions of conservation and preservation and use them in some new examples
Assessment objective 1 – knowledge and understanding
Assessment objective 2 – application of knowledge and understanding
Assessment objective 3 – how science works

21. Review of key ideas Succession e.g. Surtsey, glacial moraines,
sand dunes,
Conservation
Preservation
e.g. Galapagos islands

22. For either sand dunes or timber production
Identify at least 3 problems for conserving biodiversity
Suggest solutions
Create a summary so you can feed back to another group

23. Timer

24. 1, 2, 3, 4, 5 checking your understanding
one - name of the last stage in a succession
two - abiotic factors
three - facts about pioneer species
four - threats caused by humans on the Galapagos islands
five - ways of conserving a species, ecosystem or habitat
And to be handed in on Monday :-
answers to the 3 exam questions and the completed page on conservation in the booklet