ably varies with root system, which is itself dependent
on habitat (sect. 3·2).
Plantation grown A. robusta in north Queensland
around Atherton have been occasionally defoliated by
cyclones. On Mauritius old trees of the same species
have proved cyclone-resistant but young ones are very
vulnerable (A. F. A. Lamb, ohs.) Young regrowth of
A. macrophyl/a on Vanikolo has suffered storm-loss.