Conservation of ecosystems: Module 6, Part 7

Conservation of ecosystems: Module 6, Part 7

1. Preservation is different!!

   • Keeping ecoystems the same, whilst protecting them
   • Nothing is removed from it

2. What is conservation?

   • Management of natural resources
   • Natural resources that can still be used, without them running out
     • Social
       • Attractions and activates
     • Economical
       • Drugs / food / clothes
         • Dynamic process - constantly changing
     • Ethical
       • Morals / human activity

3. What's Sustainability?

   • Ensure resources that are taken today, but without reducing the ability for people in the future for their needs
     • Ways of sustainability on land
       • Small patches cut down
       • Coppicing
         • Cutting trees in a way to let them grow back
       • Not planted close together; avoiding competition
       • Sticks for support and tubes to stop bugs (herbivory)
       • Native species, rather than non-native
     • Overfishing???
       • decline in some fish species because of overfishing
         • Mesh size of nets
         • International agreements
           • Common fisheries policy
         • Fishing quotes
           • Limited catch of species of fish
             • From scientific study (population size)

4. Human activities on ecosystems

   • Humans introduced non-native animals, killing the native ones (i.e. grey squirrel)
   • Non native plants compete with native plant species
     • Eradication programs can be introduced / public follow set of rules
   • Examples
     • The Galapagos islands
     • Antarctica
     • Lake district / Snowdonia national parks

5. If you get stuck on a question, remember.....

   • Human activity
   • Sustainability
   • Conservation