The bole of a Manna gum,Eucalyptus viminalis,growing in Warrandyte State Park,Victoria Australia.Also known as the Ribbon gum,and a favourite food plant for Koalas (Phascolarctos cinereus),the Manna gum has bark that characteristically peels off in long ribbon-like sections from the upper parts of both trunk and the branches. These ribbons of bark accumulate at the base of the tree,and constitute a source of fuel during bushfire events. The casting of bark from higher parts of the tree may represent an adaptation against fire reaching the upper branches and foliage. Although bushfires are in modern times regarded as disastrous,many Australian trees require fire for their normal growth cycle,as their seeds may only germinate after exposure to heat and smoke | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
Taille de l’image : | 3468 px × 5212 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |