Population growth rate of aphid (r) 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 a 3 a b 12 Initial aphid density b ant presence ☐ant absence 24 с
Aphids and ants can have a mutualistic relationship. Aphids exude sugary substances that provide energy for ants and ants can defend aphid colonies from predators. This experiment measured the
A. When starting populations are low, the presence of ants does not matter. Their importance increases with higher starting population densities.
B. It appears that aphid populations founded with 12 individuals grow faster than aphid populations founded with 24 individuals when compared to each other in the same ant treatment..
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