1. Introduction -- 2. The hollow-using fauna of Australia -- 3. The evolution of hollow use -- 4. Hollow formation -- 5. The inventory of hollows and hollow-bearing trees -- 6. The selection of hollows by fauna -- 7. Hollow numbers and fauna populations
-- 8. Perpetuating hollows -- 9. Pest and introduced species that use hollows -- 10. The role of nest boxes in research and management -- 11. Concluding remarks -- Appendices.
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