Parasitism Mutualism and commensalism in savanna?

In the savanna ecosystem, parasitism is exemplified by ticks that feed on larger mammals, potentially harming their hosts. Mutualism is seen in the relationship between acacia trees and certain ants; the ants protect the trees from herbivores while gaining shelter and food from the tree's nectar. Commensalism can be observed when birds, such as oxpeckers, perch on large herbivores like buffaloes; the birds benefit from the insects they eat off the animals' skin, while the buffaloes are neither significantly helped nor harmed. These interactions illustrate the diverse relationships that contribute to the savanna's ecological balance.