Risk-based biosecurity decision-making and management critically depend on spatial intelligence, ie knowledge on where a biosecurity risk (eg a pest or disease species) is occurring or may establish, how it is spreading and where the greatest impacts are likely to be (Lyon 2010). The need to better integrate such knowledge into existing pest risk assessment frameworks is increasingly recognized (Lindgren 2012, Venette et al. 2010). Consequently, research on spatial modelling and analysis of biosecurity risks featured heavily in the program of the Australian Centre of Excellence for Risk Analysis (ACERA) and has been incorporated into the recently successful extension bids of the CRC for National Plant Biosecurity and the Invasive Animals. Biosecurity