Answer
There is a statistically significant difference between the herbivory index of the vines climbing leafy trees and that of vines creeping on the ground and vines climbing on trunks. From this we can conclude that leaf mimicry helps to protect the plant from being eaten by herbivores. In order to further explore the role of leaf mimicry, researchers could move the vines from one host to another and measure the herbivory index of the vines with similar leaf shape/size to the host leaves compared to the vines with different leaf shape/size to the host.
Work Step by Step
The P index (P < 0.001) indicates that there is less than a 1 in 1000 chance that the differences found in the study were due to random chance, meaning that the results are statistically significant. This means that the differences in the herbivory index of vines climbing leafy trees, vines creeping on the ground and vines climbing bare trunks are caused by the differences in leaf mimicry. Leaf mimicry means that the vines growing on leafy trees can change in appearance to match the size, shape and colour of the host trees' leaves. From the results we can conclude that this protected the leaves from being eaten by herbivores. If researchers wanted to further explore this, they could move the Boquila trifoliolata vines that have adapted to a specific host tree species to a different tree species to examine if this still reduces herbivore consumption.
