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

CORRIDOR

SYSTEM

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)