Summary: Resource Dynamics And Sustainable Utilisation

Read the summary and the most important questions on Resource Dynamics and Sustainable Utilisation

• 1 Lectures

• 1.2 Wildlife resources

  This is a preview. There are 5 more flashcards available for chapter 1.2
  Show more cards here

• What ecosystems services do wildlife provide?

  1. Seed dispersal
     
  2. Pollination
  3. Herbivory
  4. Predation and fear
  5. Disease control
  6. Ecosystem engineering
  7. Nutrient cycling
  8. Tourism
  9. Recreation

• What are the causes of wildlife decline?

  1. Climate change
  2. Pollution (Chemicals, light, noise)
  3. Habitat destruction (land conversion for agriculture and urbanization)
  4. Invasive species (Predation, competition, diseases)
  5. Overexploitation (Resource consumption at a speed that exceeds natural regeneration)

• 1.3 European forest resources

  This is a preview. There are 7 more flashcards available for chapter 1.3
  Show more cards here

• What are the aims of Climate Smart Forestry?

  1) sustainably increasing forest productivity
  and incomes
  2) adapting and building resilience to
  climate change
  3) reducing and/or removing
  greenhouse gas emissions.

• 2 Inventories

• 2.1 Forest inventory

  This is a preview. There are 24 more flashcards available for chapter 2.1
  Show more cards here

• You do a forest inventory to get quantative data on:

  • Species composition
    
  • forest types
  • regeneration
  • timber stock

• A forest inventory allows for planning and the evaluation of:

  • Growth and yield
    
  • land use planning
  • thinning practices
  • regeneration treatments

• Do you choose many small sampling units or a few large ones?

  • Sampling unit should be representative for the whole
  • Should be sufficient large to capture spatial variation
  • The more spatial variation, the large the sampling unit should be
  • The more units, the better for statistical analyses

• What are the benefits of stratified sampling?

  1. More precise estimates of mean
     
  2. more cost-efficient
  3. fore each stratum sufficient plots and detailed information

• Why do a circular plot?

  • Easy to set up
    
  • no pre-determined orientation (no sampling bias)
  • reduce edge effects (low perimeter to area ratio)

• What are the problems with circular plots?

  • Difficult to determine whether trees are in or out (no rope as border
    
  • difficult to correct for slope
  • less easy to establish in dense understory vegetation

• Why set up a transect?

  • Very easy to set up
    
  • sample large areas and evironmental heterogeneity (gentry transects)