Conservation and preservationYou 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

Conservation and preservationYou 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

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.

• http://www.ace.mmu.ac.uk/eae/sustainability/Older/Conservation_and_Preservation.html

Where are they?

The Galapagos Islands, near Ecuador, south America

Charles DarwinHe visited the Galapagos islandsin 1835 and laterwrote about the origin of species bynatural selection

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

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

islands

Wildlife on the Galapagos islands

Marine life near the Galapagos Islands

Why are the wildanimals of The Galapagos Islandsso unafraid of humans?

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 resourcese.g. whales, seals, tortoises, sea cucumbers

Result:- 25% of plant and 50% of vertebrate species endemic

to the islands are now endangered

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

• http://www.galapagos.org/2008• http://www.gct.org/

Conservation in the Galapagos

• http://www.youtube.com/watch?v=NR3Z4p5hspI&feature=PlayList&p=670A119F7FA997FB&index=0 Lonesome George

• http://www.youtube.com/watch?v=NoA0tobC6C0&feature=SeriesPlayList&p=670A119F7FA997FB&index=1 Tourists vs Conservation

• http://www.youtube.com/watch?v=YKZFW4451T8&feature=SeriesPlayList&p=670A119F7FA997FB&index=4

• http://www.youtube.com/watch?v=ZiW96Uci624&feature=SeriesPlayList&p=670A119F7FA997FB&index=2 Captive breeding programme

• http://www.youtube.com/watch?v=IQ3q79rD_9U&feature=SeriesPlayList&p=670A119F7FA997FB&index=3 Alien invasion

• http://www.youtube.com/watch?v=bcQmz3hPOn4&feature=SeriesPlayList&p=670A119F7FA997FB&index=5 Next generation

Conservation in the UK• Joint Nature Conservation Committee. JNCC. Adviser to

the United Kingdom Government on nature conservation issues at a Great Britainhttp://www.naturenet.net/index.php

• Marine conservation • http://www.mcsuk.org/

• Butterfly conservation• http://www.butterfly-conservation.org/

• Bat conservation • http://www.bats.org.uk/

• Conservation of plants and their seeds• http://www.kew.org/conservation/• www.countrysideinfo.co.uk

Reviewing your understanding

succession conservation

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 understandingAssessment objective 2 – application of knowledge and understanding

Assessment objective 3 – how science works

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 understandingAssessment objective 2 – application of knowledge and understanding

Assessment objective 3 – how science works

Review of key ideas

• Succession e.g. Surtsey, glacial moraines, sand dunes,

• Conservation• Preservation

e.g. Galapagos islands

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

Timer

• http://www.vickiblackwell.com/timer.html

1, 2, 3, 4, 5checking 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