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Equilibrium Theory of Island Biogeography - short comings!

Equilibrium Theory of Island Biogeography - short comings!

5. “Equilibrium” not yet reached in some cases

5. “Equilibrium” not yet reached in some cases

Island Biogeography

Oceanic islands - equilibrium typically met

Island Biogeography

Continental islands - equilibrium typically not met

Island Biogeography

Island Biogeography

Equilibrium Theory of Island Biogeography - short comings!

Equilibrium Theory of Island Biogeography - short comings!

5. “Equilibrium” not yet reached in some cases

5. “Equilibrium” not yet reached in some cases

Oceanic island

Continental island high extinction

  • Faunal collapse in Sunda

Shelf 0.5% decline/generation

  • Time to equilibrium very slow

Continental island high extinction

# species

S

# species

S

# species

S

time

time

• we view oceanic islands late when at equilibrium

• we view continental islands early (faunal/flora collapse, relaxation)

high immigration

time

  • we view continental islands early

(faunal/flora collapse, relaxation)

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