Ecology 6th Edition by Charles Krebs

تمرين 9

Eucalyptus trees in Australia have high rates of insect attack on leaves, with 10%-50% of the leaves eaten every year, even though these trees also contain very high concentrations of essential oils and tannins (Gras et al. 2005). Discuss how this situation could occur if eucalyptus oils and tannins are defensive chemicals.