Fig. 2From: Avian species diversity and transmission of West Nile virus in Atlanta, GeorgiaShannon-Wiener avian species diversity indices. Indices were calculated at each of the eight study sites representing 4 microhabitat types in urban Atlanta, GA, USA, May-October, 2010–2011. a Species diversity at-large, calculated considering all observed birds. b Species diversity experienced by the pathogen, calculated considering only species observed previously to have been utilized as a Culex blood-meal hostBack to article page