Complete the notes below. Write ONE WORD ONLY for each answer.

The Eucalyptus Tree in Australia

Importance
• It provides (31) .................... and food for a wide range of species
• Its leaves provide (32)....................  which is used to make a disinfectant

Reasons for present decline in number:
Diseases:
• Mundulla Yellows
o Cause:
– lime used for making (33) ................ was absorbed
– trees were unable to take in necessary iron through their roots
• Bell-miner Associated Die-back
o Cause:
– (34) ........................  feed on eucalyptus leaves
– they secrete a substance containing sugar
– bell-miner birds are attracted by this and keep away other species

Bushfires:
Willian Jackson’s theory:
• High frequency bushfires have impact on vegetation, resulting in the growth of (35) ...............................

• Mid frequency bushfires result in the growth of eucalyptus forests, because they:
o make more (36) ................  available to the trees
o maintain the quality of the (37) ........................

• Low frequency bushfires result in the growth of (38)........................  rainforest which is:
o a (39) ............ ecosystem
o an ideal environment for the (40) ........................ of the bell-miner