A study in Missouri woodlands demonstrated that amphibian species richness (numbers of species) and evenness (relative distribution of species) declined in plots dominated by burning bush, Euonymus alatus. The decline was attributable to a cooler microclimate under burning bush. The cooler temperatures did seem to favor the green frog, but the authors noted that the shrubs might also limit the mobility of the frogs making them more vulnerable to predators.
Watling, J. I., C.R. Hickman, J. L. Orrock. 2011. Invasive shrub alters native forest amphibian communities. Biological Conservation 144: 2597-2601.
