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equal diversity in native and exotic California woodlands

eucalyptus groves have diversity similar to oak and bay

doc-titleEqual diversity in disparate species assemblages: a comparison of native and exotic woodlands in California
quote... the species richness, diversity and composition of native woodlands (of oak and bay trees) and exotic woodlands (of eucalypt trees) were compared in California. Species richness was nearly identical for understorey plants, leaf-litter invertebrates, amphibians and birds; only rodents had significantly fewer species in eucalypt sites.
sourceformer UC Berkeley biology professor Dov F. Sax in Global Ecology and Biogeography