QUESTION 13 (3 marks)
The data shows changes in relative abundance of ground cover, biomass and species diversity for an abandoned sand mine site over time.
Based on the information provided, predict whether further ecological succession would occur in this community. Justify your answer with two relevant reasons.
QCAA guide · typeset solution
QCAA sample response and mark allocation
13 | It is likely that no further ecological succession would occur — this appears to be a climax community as there is levelling in the biomass and biodiversity, a range of shrubs, trees and grasses with mature trees making up a large proportion of the community and the dominant species are K-selected (mature trees). | • predicts no further succession [1 mark] • provides a relevant reason [1 mark] • provides another relevant reason [1 mark] |
QCAA sample response and marking criteria reproduced from the official guide.
Compare your working with the guide above.