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My 2014 ESA talk on the role of termites and elephants in shaping plant communities and landscape heterogeneity. On one hand, termites and elephants change plant communities by themselves. Termites create mounds which have different soil, nutrients, and water availability. These mounds form separate plant "islands" that are home to distinct plant communities. Elephants, meanwhile, eat mostly trees and shrubs, and this diet can also change plant communities by reducing the numbers and abundance of certain plant species.
Together, however, it appears that these two species also affect each other. Elephants reduce trees, which means there are fewer resources available for termites. As a result, termites form fewer mounds in areas where elephants are present. This changes landscape-scale patterns in plant communities.