Whitham, T.G., Morrow, P.A., & Potts, B.M. 1994 Plant hybrid zones as centers of biodiversity: the herbivore community of two endemic Tasmanian eucalypts.. Oecologia 97(4): 481-490.

Notes: Abstract: The hybrid zone between Eucalyptus amygdalina and E. risdonii found to be a center of insect and fungal species richness and abundance; variation in herbivore loads among hybrids can exceed that observed between species, suggesting that hybrids express novel traits not present in the parent species; Ericoccus tepperi given as an example.