Diversity in islands

1
Diversity in islands
2
Theory of Island Biogeography
3
Why diversity increases in nearer islands
4
Why diversity increases in larger islands
5
Simberloff and Wilson study
6
Extinction and conservation
7
Known spp diversity
8
Value of diversity

• Moral
• Economic
• Ecological

9
Value of biodiversity b) economic
10
Ecotourism
11
c) Maintenance of ecosystem function
12
Types of extinction
13
Habitat fragmentation
14
Exotic Species
15
Overexploitation
16
Conservation strategies
17
For individual species
18
For multiple species
19
Design of preserves

• Guiding principles (derived from theory of island
  biogeography
• Preserve large areas
• Avoid edge effects
• Allow freedom for migration