APLIKASI TEORI
ISLAND BIOGEOGRAPHY
ANI MARDIASTUTI
CONCEPT OF ISLAND
Island : land mass surrounded by water
→ TRUE ISLAND
water → barrier for dispersal of biotas
Habitat Island :
a certain habitat type, surrounded by other
habitat types, which act as barrier for
dispersal
Habitat Island : Mountain Tops
Habitat Island : Tree for caterpillars
Habitat Islands : Lakes for fishes
Habitat Island : Fragmented forest
1980
2000
Design of Nature
Reserve
Single large or several small ?
Number of species present
Management effectivity
Catastrophic event
Edges and interior
Continental and archipelago system
SLOSS
Best for Indonesia ?
Pros and Cons of CORRIDOR
Connecting gene pool
Susceptibility to predation and illegal hunting
Application for Indonesia
Distribution of National Park
Metapopulation Concept (Richard Levins, 1969)
A collection of populations, each
existing on patches of suitable habitat
Can be applied very well for
fragmented forest
Metapopulation of Sumatran
Elephant
Gen Flow in Metapopulation Concept
Source-sink Model
Also known as :
Core-sink model
Core-satellite model
Mainland-island model
Source-sink Model
Other Related Concepts
MVP (Minimum Viable Population)
MVA (Minimum Viable Area)
MVM (Minimum Viable Metapopulation)
MASH (Minimum Amount of Suitable
Habitat)